/** This {@link ViewHandler} implementation handles both JSP-based and Facelets/PDL-based views. */
public class MultiViewHandler extends ViewHandler {
// Log instance for this class
private static final Logger logger = FacesLogger.APPLICATION.getLogger();
private String[] configuredExtensions;
private PageDeclarationLanguageFactory pdlFactory;
// ------------------------------------------------------------ Constructors
public MultiViewHandler() {
WebConfiguration config = WebConfiguration.getInstance();
String defaultSuffixConfig =
config.getOptionValue(WebConfiguration.WebContextInitParameter.DefaultSuffix);
configuredExtensions = Util.split(defaultSuffixConfig, " ");
pdlFactory =
(PageDeclarationLanguageFactory)
FactoryFinder.getFactory(FactoryFinder.PAGE_DECLARATION_LANGUAGE_FACTORY);
}
// ------------------------------------------------ Methods from ViewHandler
/**
* Do not call the default implementation of {@link
* javax.faces.application.ViewHandler#initView(javax.faces.context.FacesContext)} if the {@link
* javax.faces.context.ExternalContext#getRequestCharacterEncoding()} returns a <code>non-null
* </code> result.
*
* @see javax.faces.application.ViewHandler#initView(javax.faces.context.FacesContext)
*/
@Override
public void initView(FacesContext context) throws FacesException {
if (context.getExternalContext().getRequestCharacterEncoding() == null) {
super.initView(context);
}
}
/**
* Call {@link PageDeclarationLanguage#renderView(javax.faces.context.FacesContext,
* javax.faces.component.UIViewRoot)} if the view can be rendered.
*
* @see ViewHandler#renderView(javax.faces.context.FacesContext, javax.faces.component.UIViewRoot)
*/
public void renderView(FacesContext context, UIViewRoot viewToRender)
throws IOException, FacesException {
Util.notNull("context", context);
Util.notNull("viewToRender", viewToRender);
pdlFactory
.getPageDeclarationLanguage(viewToRender.getViewId())
.renderView(context, viewToRender);
}
/**
* Call {@link PageDeclarationLanguage#restoreView(javax.faces.context.FacesContext, String)}.
*
* @see ViewHandler#restoreView(javax.faces.context.FacesContext, String)
*/
public UIViewRoot restoreView(FacesContext context, String viewId) {
Util.notNull("context", context);
String actualViewId = derivePhysicalViewId(context, viewId);
return pdlFactory.getPageDeclarationLanguage(actualViewId).restoreView(context, actualViewId);
}
/**
* @see ViewHandler#retargetAttachedObjects(javax.faces.context.FacesContext,
* javax.faces.component.UIComponent, java.util.List)
*/
@Override
public void retargetAttachedObjects(
FacesContext context, UIComponent topLevelComponent, List<AttachedObjectHandler> handlers) {
BeanInfo componentBeanInfo =
(BeanInfo) topLevelComponent.getAttributes().get(UIComponent.BEANINFO_KEY);
// PENDING(edburns): log error message if componentBeanInfo is null;
if (null == componentBeanInfo) {
return;
}
BeanDescriptor componentDescriptor = componentBeanInfo.getBeanDescriptor();
// There is an entry in targetList for each attached object in the
// <composite:interface> section of the composite component.
List<AttachedObjectTarget> targetList =
(List<AttachedObjectTarget>)
componentDescriptor.getValue(AttachedObjectTarget.ATTACHED_OBJECT_TARGETS_KEY);
// Each entry in targetList will vend one or more UIComponent instances
// that is to serve as the target of an attached object in the consuming
// page.
List<UIComponent> targetComponents = null;
String forAttributeValue, curTargetName, handlerTagId, componentTagId;
boolean foundMatch = false;
// For each of the attached object handlers...
for (AttachedObjectHandler curHandler : handlers) {
// Get the name given to this attached object by the page author
// in the consuming page.
forAttributeValue = curHandler.getFor();
// For each of the attached objects in the <composite:interface> section
// of this composite component...
foundMatch = false;
for (AttachedObjectTarget curTarget : targetList) {
if (foundMatch) {
break;
}
// Get the name given to this attached object target by the
// composite component author
curTargetName = curTarget.getName();
targetComponents = curTarget.getTargets(topLevelComponent);
if (curHandler instanceof ActionSource2AttachedObjectHandler
&& curTarget instanceof ActionSource2AttachedObjectTarget) {
if (forAttributeValue.equals(curTargetName)) {
for (UIComponent curTargetComponent : targetComponents) {
curHandler.applyAttachedObject(context, curTargetComponent);
foundMatch = true;
}
}
} else if (curHandler instanceof EditableValueHolderAttachedObjectHandler
&& curTarget instanceof EditableValueHolderAttachedObjectTarget) {
if (forAttributeValue.equals(curTargetName)) {
for (UIComponent curTargetComponent : targetComponents) {
curHandler.applyAttachedObject(context, curTargetComponent);
foundMatch = true;
}
}
} else if (curHandler instanceof ValueHolderAttachedObjectHandler
&& curTarget instanceof ValueHolderAttachedObjectTarget) {
if (forAttributeValue.equals(curTargetName)) {
for (UIComponent curTargetComponent : targetComponents) {
curHandler.applyAttachedObject(context, curTargetComponent);
foundMatch = true;
}
}
}
}
}
}
/**
* @see ViewHandler#retargetMethodExpressions(javax.faces.context.FacesContext,
* javax.faces.component.UIComponent)
*/
@Override
public void retargetMethodExpressions(FacesContext context, UIComponent topLevelComponent) {
BeanInfo componentBeanInfo =
(BeanInfo) topLevelComponent.getAttributes().get(UIComponent.BEANINFO_KEY);
// PENDING(edburns): log error message if componentBeanInfo is null;
if (null == componentBeanInfo) {
return;
}
PropertyDescriptor attributes[] = componentBeanInfo.getPropertyDescriptors();
String targets = null, attrName = null, strValue = null, methodSignature = null;
UIComponent target = null;
ExpressionFactory expressionFactory = null;
ValueExpression valueExpression = null;
MethodExpression toApply = null;
Class expectedReturnType = null;
Class expectedParameters[] = null;
for (PropertyDescriptor cur : attributes) {
// If the current attribute represents a ValueExpression
if (null != (valueExpression = (ValueExpression) cur.getValue("type"))) {
// take no action on this attribute.
continue;
}
// If the current attribute representes a MethodExpression
if (null != (valueExpression = (ValueExpression) cur.getValue("method-signature"))) {
methodSignature = (String) valueExpression.getValue(context.getELContext());
if (null != methodSignature) {
// This is the name of the attribute on the top level component,
// and on the inner component.
if (null != (valueExpression = (ValueExpression) cur.getValue("targets"))) {
targets = (String) valueExpression.getValue(context.getELContext());
}
if (null == targets) {
targets = cur.getName();
}
if (null == targets || 0 == targets.length()) {
// PENDING error message in page?
logger.severe("Unable to retarget MethodExpression: " + methodSignature);
continue;
}
String[] targetIds = targets.split(" ");
for (String curTarget : targetIds) {
attrName = cur.getName();
// Find the attribute on the top level component
valueExpression = (ValueExpression) topLevelComponent.getAttributes().get(attrName);
if (null == valueExpression) {
// PENDING error message in page?
logger.severe(
"Unable to find attribute with name \""
+ attrName
+ "\" in top level component in consuming page. "
+ "Page author error.");
continue;
}
// lazily initialize this local variable
if (null == expressionFactory) {
expressionFactory = context.getApplication().getExpressionFactory();
}
// If the attribute is one of the pre-defined
// MethodExpression attributes
boolean isAction = false,
isActionListener = false,
isValidator = false,
isValueChangeListener = false;
if ((isAction = attrName.equals("action"))
|| (isActionListener = attrName.equals("actionListener"))
|| (isValidator = attrName.equals("validator"))
|| (isValueChangeListener = attrName.equals("valueChangeListener"))) {
// This is the inner component to which the attribute should
// be applied
target = topLevelComponent.findComponent(curTarget);
if (null == targets) {
// PENDING error message in page?
logger.severe(
"Unable to retarget MethodExpression. "
+ "Unable to find inner component with id "
+ targets
+ ".");
continue;
}
if (isAction) {
expectedReturnType = Object.class;
expectedParameters = new Class[] {};
toApply =
expressionFactory.createMethodExpression(
context.getELContext(),
valueExpression.getExpressionString(),
expectedReturnType,
expectedParameters);
((ActionSource2) target).setActionExpression(toApply);
} else if (isActionListener) {
expectedReturnType = Void.TYPE;
expectedParameters = new Class[] {ActionEvent.class};
toApply =
expressionFactory.createMethodExpression(
context.getELContext(),
valueExpression.getExpressionString(),
expectedReturnType,
expectedParameters);
((ActionSource2) target)
.addActionListener(new MethodExpressionActionListener(toApply));
} else if (isValidator) {
expectedReturnType = Void.TYPE;
expectedParameters =
new Class[] {FacesContext.class, UIComponent.class, Object.class};
toApply =
expressionFactory.createMethodExpression(
context.getELContext(),
valueExpression.getExpressionString(),
expectedReturnType,
expectedParameters);
((EditableValueHolder) target).addValidator(new MethodExpressionValidator(toApply));
} else if (isValueChangeListener) {
expectedReturnType = Void.TYPE;
expectedParameters = new Class[] {ValueChangeEvent.class};
toApply =
expressionFactory.createMethodExpression(
context.getELContext(),
valueExpression.getExpressionString(),
expectedReturnType,
expectedParameters);
((EditableValueHolder) target)
.addValueChangeListener(new MethodExpressionValueChangeListener(toApply));
}
} else {
// There is no explicit methodExpression property on
// an inner component to which this MethodExpression
// should be retargeted. In this case, replace the
// ValueExpression with a method expresson.
// Pull apart the methodSignature to derive the
// expectedReturnType and expectedParameters
// PENDING(rlubke,jimdriscoll) bulletproof this
assert (null != methodSignature);
methodSignature = methodSignature.trim();
// Get expectedReturnType
int j, i = methodSignature.indexOf(" ");
if (-1 != i) {
strValue = methodSignature.substring(0, i);
try {
expectedReturnType = Util.getTypeFromString(strValue);
} catch (ClassNotFoundException cnfe) {
logger.log(
Level.SEVERE,
"Unable to determine expected return type for " + methodSignature,
cnfe);
continue;
}
} else {
logger.severe("Unable to determine expected return type for " + methodSignature);
continue;
}
// derive the arguments
i = methodSignature.indexOf("(");
if (-1 != i) {
j = methodSignature.indexOf(")", i + 1);
if (-1 != j) {
strValue = methodSignature.substring(i + 1, j);
if (0 < strValue.length()) {
String[] params = strValue.split(",");
expectedParameters = new Class[params.length];
boolean exceptionThrown = false;
for (i = 0; i < params.length; i++) {
try {
expectedParameters[i] = Util.getTypeFromString(params[i]);
} catch (ClassNotFoundException cnfe) {
logger.log(
Level.SEVERE,
"Unable to determine expected return type for " + methodSignature,
cnfe);
exceptionThrown = true;
break;
}
}
if (exceptionThrown) {
continue;
}
} else {
expectedParameters = new Class[] {};
}
}
}
assert (null != expectedReturnType);
assert (null != expectedParameters);
toApply =
expressionFactory.createMethodExpression(
context.getELContext(),
valueExpression.getExpressionString(),
expectedReturnType,
expectedParameters);
topLevelComponent.getAttributes().put(attrName, toApply);
}
}
}
}
}
}
/**
* Derive the actual view ID (i.e. the physical resource) and call call {@link
* PageDeclarationLanguage#createView(javax.faces.context.FacesContext, String)}.
*
* @see ViewHandler#restoreView(javax.faces.context.FacesContext, String)
*/
public UIViewRoot createView(FacesContext context, String viewId) {
Util.notNull("context", context);
String actualViewId = derivePhysicalViewId(context, viewId);
return pdlFactory.getPageDeclarationLanguage(actualViewId).createView(context, actualViewId);
}
/**
* This code is currently common to all {@link ViewHandlingStrategy} instances.
*
* @see ViewHandler#calculateLocale(javax.faces.context.FacesContext)
*/
public Locale calculateLocale(FacesContext context) {
Util.notNull("context", context);
Locale result = null;
// determine the locales that are acceptable to the client based on the
// Accept-Language header and the find the best match among the
// supported locales specified by the client.
Iterator<Locale> locales = context.getExternalContext().getRequestLocales();
while (locales.hasNext()) {
Locale perf = locales.next();
result = findMatch(context, perf);
if (result != null) {
break;
}
}
// no match is found.
if (result == null) {
if (context.getApplication().getDefaultLocale() == null) {
result = Locale.getDefault();
} else {
result = context.getApplication().getDefaultLocale();
}
}
return result;
}
/**
* This code is currently common to all {@link ViewHandlingStrategy} instances.
*
* @see ViewHandler#calculateRenderKitId(javax.faces.context.FacesContext)
*/
public String calculateRenderKitId(FacesContext context) {
Util.notNull("context", context);
Map<String, String> requestParamMap = context.getExternalContext().getRequestParameterMap();
String result = requestParamMap.get(ResponseStateManager.RENDER_KIT_ID_PARAM);
if (result == null) {
if (null == (result = context.getApplication().getDefaultRenderKitId())) {
result = RenderKitFactory.HTML_BASIC_RENDER_KIT;
}
}
return result;
}
/**
* This code is currently common to all {@link ViewHandlingStrategy} instances.
*
* @see ViewHandler#writeState(javax.faces.context.FacesContext)
*/
public void writeState(FacesContext context) throws IOException {
Util.notNull("context", context);
if (!context.getPartialViewContext().isAjaxRequest()) {
if (logger.isLoggable(Level.FINE)) {
logger.fine("Begin writing marker for viewId " + context.getViewRoot().getViewId());
}
WriteBehindStateWriter writer = WriteBehindStateWriter.getCurrentInstance();
if (writer != null) {
writer.writingState();
}
context.getResponseWriter().write(RIConstants.SAVESTATE_FIELD_MARKER);
if (logger.isLoggable(Level.FINE)) {
logger.fine("End writing marker for viewId " + context.getViewRoot().getViewId());
}
}
}
/**
* This code is currently common to all {@link ViewHandlingStrategy} instances.
*
* @see ViewHandler#getActionURL(javax.faces.context.FacesContext, String)
*/
public String getActionURL(FacesContext context, String viewId) {
Util.notNull("context", context);
Util.notNull("viewId", viewId);
if (viewId.charAt(0) != '/') {
String message =
MessageUtils.getExceptionMessageString(MessageUtils.ILLEGAL_VIEW_ID_ID, viewId);
if (logger.isLoggable(Level.SEVERE)) {
logger.log(Level.SEVERE, "jsf.illegal_view_id_error", viewId);
}
throw new IllegalArgumentException(message);
}
// Acquire the context path, which we will prefix on all results
ExternalContext extContext = context.getExternalContext();
String contextPath = extContext.getRequestContextPath();
// Acquire the mapping used to execute this request (if any)
String mapping = Util.getFacesMapping(context);
// If no mapping can be identified, just return a server-relative path
if (mapping == null) {
return (contextPath + viewId);
}
// Deal with prefix mapping
if (Util.isPrefixMapped(mapping)) {
if (mapping.equals("/*")) {
return (contextPath + viewId);
} else {
return (contextPath + mapping + viewId);
}
}
// Deal with extension mapping
int period = viewId.lastIndexOf('.');
if (period < 0) {
return (contextPath + viewId + mapping);
} else if (!viewId.endsWith(mapping)) {
return (contextPath + viewId.substring(0, period) + mapping);
} else {
return (contextPath + viewId);
}
}
/**
* This code is currently common to all {@link ViewHandlingStrategy} instances.
*
* @see ViewHandler#getResourceURL(javax.faces.context.FacesContext, String)
*/
public String getResourceURL(FacesContext context, String path) {
ExternalContext extContext = context.getExternalContext();
if (path.charAt(0) == '/') {
return (extContext.getRequestContextPath() + path);
} else {
return path;
}
}
/** @see ViewHandler#getPageDeclarationLanguage(javax.faces.context.FacesContext, String) */
@Override
public PageDeclarationLanguage getPageDeclarationLanguage(FacesContext context, String viewId) {
String actualViewId = derivePhysicalViewId(context, viewId);
return pdlFactory.getPageDeclarationLanguage(actualViewId);
}
// ------------------------------------------------------- Protected Methods
/**
* Attempts to find a matching locale based on <code>pref</code> and list of supported locales,
* using the matching algorithm as described in JSTL 8.3.2.
*
* @param context the <code>FacesContext</code> for the current request
* @param pref the preferred locale
* @return the Locale based on pref and the matching alogritm specified in JSTL 8.3.2
*/
protected Locale findMatch(FacesContext context, Locale pref) {
Locale result = null;
Iterator<Locale> it = context.getApplication().getSupportedLocales();
while (it.hasNext()) {
Locale supportedLocale = it.next();
if (pref.equals(supportedLocale)) {
// exact match
result = supportedLocale;
break;
} else {
// Make sure the preferred locale doesn't have country
// set, when doing a language match, For ex., if the
// preferred locale is "en-US", if one of supported
// locales is "en-UK", even though its language matches
// that of the preferred locale, we must ignore it.
if (pref.getLanguage().equals(supportedLocale.getLanguage())
&& supportedLocale.getCountry().length() == 0) {
result = supportedLocale;
}
}
}
// if it's not in the supported locales,
if (null == result) {
Locale defaultLocale = context.getApplication().getDefaultLocale();
if (defaultLocale != null) {
if (pref.equals(defaultLocale)) {
// exact match
result = defaultLocale;
} else {
// Make sure the preferred locale doesn't have country
// set, when doing a language match, For ex., if the
// preferred locale is "en-US", if one of supported
// locales is "en-UK", even though its language matches
// that of the preferred locale, we must ignore it.
if (pref.getLanguage().equals(defaultLocale.getLanguage())
&& defaultLocale.getCountry().length() == 0) {
result = defaultLocale;
}
}
}
}
return result;
}
/**
* if the specified mapping is a prefix mapping, and the provided request URI (usually the value
* from <code>ExternalContext.getRequestServletPath()</code>) starts with <code>mapping + '/'
* </code>, prune the mapping from the URI and return it, otherwise, return the original URI.
*
* @param uri the servlet request path
* @param mapping the FacesServlet mapping used for this request
* @return the URI without additional FacesServlet mappings
* @since 1.2
*/
protected String normalizeRequestURI(String uri, String mapping) {
if (mapping == null || !Util.isPrefixMapped(mapping)) {
return uri;
} else {
int length = mapping.length() + 1;
StringBuilder builder = new StringBuilder(length);
builder.append(mapping).append('/');
String mappingMod = builder.toString();
boolean logged = false;
while (uri.startsWith(mappingMod)) {
if (!logged && logger.isLoggable(Level.WARNING)) {
logged = true;
logger.log(
Level.WARNING, "jsf.viewhandler.requestpath.recursion", new Object[] {uri, mapping});
}
uri = uri.substring(length - 1);
}
return uri;
}
}
/**
* Send {@link HttpServletResponse#SC_NOT_FOUND} (404) to the client.
*
* @param context the {@link FacesContext} for the current request
*/
protected void send404Error(FacesContext context) {
HttpServletResponse response = (HttpServletResponse) context.getExternalContext().getResponse();
try {
context.responseComplete();
response.sendError(HttpServletResponse.SC_NOT_FOUND);
} catch (IOException ioe) {
throw new FacesException(ioe);
}
}
/**
* Adjust the viewID per the requirements of {@link #renderView}.
*
* @param context current {@link javax.faces.context.FacesContext}
* @param viewId incoming view ID
* @return the view ID with an altered suffix mapping (if necessary)
*/
protected String convertViewId(FacesContext context, String viewId) {
// if the viewId doesn't already use the above suffix,
// replace or append.
StringBuilder buffer = new StringBuilder(viewId);
for (String ext : configuredExtensions) {
if (viewId.endsWith(ext)) {
return viewId;
}
int extIdx = viewId.lastIndexOf('.');
if (extIdx != -1) {
buffer.replace(extIdx, viewId.length(), ext);
} else {
// no extension in the provided viewId, append the suffix
buffer.append(ext);
}
String convertedViewId = buffer.toString();
try {
if (context.getExternalContext().getResource(convertedViewId) != null) {
// RELEASE_PENDING (rlubke,driscoll) cache the lookup
return convertedViewId;
} else {
// reset the buffer to check for the next extension
buffer.setLength(0);
buffer.append(viewId);
}
} catch (MalformedURLException e) {
if (logger.isLoggable(Level.SEVERE)) {
logger.log(Level.SEVERE, e.toString(), e);
}
}
}
// unable to find any resource match that the default ViewHandler
// can deal with. Return the viewId as it was passed. There is
// probably another ViewHandler in the stack that will handle this.
return viewId;
}
protected String derivePhysicalViewId(FacesContext ctx, String viewId) {
if (viewId != null) {
String mapping = Util.getFacesMapping(ctx);
if (mapping != null) {
if (!Util.isPrefixMapped(mapping)) {
viewId = convertViewId(ctx, viewId);
} else {
viewId = normalizeRequestURI(viewId, mapping);
if (viewId.equals(mapping)) {
// The request was to the FacesServlet only - no
// path info
// on some containers this causes a recursion in the
// RequestDispatcher and the request appears to hang.
// If this is detected, return status 404
send404Error(ctx);
}
}
}
}
return viewId;
}
}
/**
* <strong>NavigationHandlerImpl</strong> is the class that implements default navigation handling.
* Refer to section 7.4.2 of the specification for more details. PENDING: Make independent of
* ApplicationAssociate.
*/
public class NavigationHandlerImpl extends ConfigurableNavigationHandler {
//
// Protected Constants
//
// Log instance for this class
private static final Logger logger = FacesLogger.APPLICATION.getLogger();
//
// Class Variables
//
// Instance Variables
/** <code>Map</code> containing configured navigation cases. */
private Map<String, List<NavigationCase>> caseListMap;
/** <code>Set</code> containing wildcard navigation cases. */
private Set<String> wildCardSet;
/** Flag indicating navigation cases properly consumed and available. */
private boolean navigationConfigured;
/** Flag indicated the current mode. */
private boolean development;
/**
* This constructor uses the current <code>Application</code> instance to obtain the navigation
* mappings used to make navigational decisions.
*/
public NavigationHandlerImpl() {
super();
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE, "Created NavigationHandler instance ");
}
// if the user is using the decorator pattern, this would cause
// our ApplicationAssociate to be created, if it isn't already
// created.
ApplicationFactory aFactory =
(ApplicationFactory) FactoryFinder.getFactory(FactoryFinder.APPLICATION_FACTORY);
aFactory.getApplication();
ApplicationAssociate associate =
ApplicationAssociate.getInstance(FacesContext.getCurrentInstance().getExternalContext());
if (associate != null) {
caseListMap = associate.getNavigationCaseListMappings();
wildCardSet = associate.getNavigationWildCardList();
navigationConfigured = (wildCardSet != null && caseListMap != null);
development = associate.isDevModeEnabled();
}
}
NavigationHandlerImpl(ApplicationAssociate associate) {
if (associate == null) {
throw new NullPointerException();
} else {
caseListMap = associate.getNavigationCaseListMappings();
wildCardSet = associate.getNavigationWildCardList();
navigationConfigured = (wildCardSet != null && caseListMap != null);
}
}
@Override
public NavigationCase getNavigationCase(FacesContext context, String fromAction, String outcome) {
NavigationCase result = null;
CaseStruct caseStruct = getViewId(context, fromAction, outcome);
if (null != caseStruct) {
result = caseStruct.navCase;
}
return result;
}
@Override
public Map<String, List<NavigationCase>> getNavigationCases() {
return caseListMap;
}
/**
* Determine the next view based on the current view (<code>from-view-id</code> stored in <code>
* FacesContext</code>), <code>fromAction</code> and <code>outcome</code>.
*
* @param context The <code>FacesContext</code>
* @param fromAction the action reference string
* @param outcome the outcome string
*/
public void handleNavigation(FacesContext context, String fromAction, String outcome) {
if (context == null) {
String message =
MessageUtils.getExceptionMessageString(
MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "context");
throw new NullPointerException(message);
}
if (outcome == null) {
return; // Explicitly remain on the current view
}
CaseStruct caseStruct = getViewId(context, fromAction, outcome);
ExternalContext extContext = context.getExternalContext();
if (caseStruct != null) {
ViewHandler viewHandler = Util.getViewHandler(context);
assert (null != viewHandler);
if (caseStruct.navCase.isRedirect()) {
// perform a 302 redirect.
String newPath = viewHandler.getActionURL(context, caseStruct.viewId);
try {
if (logger.isLoggable(Level.FINE)) {
logger.fine(
"Redirecting to path "
+ newPath
+ " for outcome "
+ outcome
+ "and viewId "
+ caseStruct.viewId);
}
// encode the redirect to ensure session state
// is maintained
extContext.redirect(extContext.encodeActionURL(newPath));
} catch (java.io.IOException ioe) {
if (logger.isLoggable(Level.SEVERE)) {
logger.log(Level.SEVERE, "jsf.redirect_failed_error", newPath);
}
throw new FacesException(ioe.getMessage(), ioe);
}
context.responseComplete();
if (logger.isLoggable(Level.FINE)) {
logger.fine("Response complete for " + caseStruct.viewId);
}
} else {
UIViewRoot newRoot = viewHandler.createView(context, caseStruct.viewId);
context.setViewRoot(newRoot);
if (logger.isLoggable(Level.FINE)) {
logger.fine("Set new view in FacesContext for " + caseStruct.viewId);
}
}
}
}
/**
* This method uses helper methods to determine the new <code>view</code> identifier. Refer to
* section 7.4.2 of the specification for more details.
*
* @param context The Faces Context
* @param fromAction The action reference string
* @param outcome The outcome string
* @return The <code>view</code> identifier.
*/
private CaseStruct getViewId(FacesContext context, String fromAction, String outcome) {
UIViewRoot root = context.getViewRoot();
String viewId = (root != null ? root.getViewId() : null);
// if viewId is not null, use its value to find
// a navigation match, otherwise look for a match
// based soley on the fromAction and outcome
CaseStruct caseStruct = null;
if (viewId != null) {
caseStruct = findExactMatch(viewId, fromAction, outcome);
if (caseStruct == null) {
caseStruct = findWildCardMatch(viewId, fromAction, outcome);
}
}
if (caseStruct == null) {
caseStruct = findDefaultMatch(fromAction, outcome);
}
if (caseStruct == null && development) {
String key;
Object[] params;
if (fromAction == null) {
key = MessageUtils.NAVIGATION_NO_MATCHING_OUTCOME_ID;
params = new Object[] {viewId, outcome};
} else {
key = MessageUtils.NAVIGATION_NO_MATCHING_OUTCOME_ACTION_ID;
params = new Object[] {viewId, fromAction, outcome};
}
FacesMessage m = MessageUtils.getExceptionMessage(key, params);
m.setSeverity(FacesMessage.SEVERITY_WARN);
context.addMessage(null, m);
}
return caseStruct;
}
/**
* This method finds the List of cases for the current <code>view</code> identifier. After the
* cases are found, the <code>from-action</code> and <code>from-outcome</code> values are
* evaluated to determine the new <code>view</code> identifier. Refer to section 7.4.2 of the
* specification for more details.
*
* @param viewId The current <code>view</code> identifier.
* @param fromAction The action reference string.
* @param outcome The outcome string.
* @return The <code>view</code> identifier.
*/
private CaseStruct findExactMatch(String viewId, String fromAction, String outcome) {
// if the user has elected to replace the Application instance
// entirely
if (!navigationConfigured) {
return null;
}
List<NavigationCase> caseList = caseListMap.get(viewId);
if (caseList == null) {
return null;
}
// We've found an exact match for the viewId. Now we need to evaluate
// from-action/outcome in the following order:
// 1) elements specifying both from-action and from-outcome
// 2) elements specifying only from-outcome
// 3) elements specifying only from-action
// 4) elements where both from-action and from-outcome are null
return determineViewFromActionOutcome(caseList, fromAction, outcome);
}
/**
* This method traverses the wild card match List (containing <code>from-view-id</code> strings
* and finds the List of cases for each <code>from-view-id</code> string. Refer to section 7.4.2
* of the specification for more details.
*
* @param viewId The current <code>view</code> identifier.
* @param fromAction The action reference string.
* @param outcome The outcome string.
* @return The <code>view</code> identifier.
*/
private CaseStruct findWildCardMatch(String viewId, String fromAction, String outcome) {
CaseStruct result = null;
// if the user has elected to replace the Application instance
// entirely
if (!navigationConfigured) {
return null;
}
for (String fromViewId : wildCardSet) {
// See if the entire wildcard string (without the trailing "*" is
// contained in the incoming viewId.
// Ex: /foobar is contained with /foobarbaz
// If so, then we have found our largest pattern match..
// If not, then continue on to the next case;
if (!viewId.startsWith(fromViewId)) {
continue;
}
// Append the trailing "*" so we can do our map lookup;
String wcFromViewId = new StringBuilder(32).append(fromViewId).append('*').toString();
List<NavigationCase> caseList = caseListMap.get(wcFromViewId);
if (caseList == null) {
return null;
}
// If we've found a match, then we need to evaluate
// from-action/outcome in the following order:
// 1) elements specifying both from-action and from-outcome
// 2) elements specifying only from-outcome
// 3) elements specifying only from-action
// 4) elements where both from-action and from-outcome are null
result = determineViewFromActionOutcome(caseList, fromAction, outcome);
if (result != null) {
break;
}
}
return result;
}
/**
* This method will extract the cases for which a <code>from-view-id</code> is an asterisk "*".
* Refer to section 7.4.2 of the specification for more details.
*
* @param fromAction The action reference string.
* @param outcome The outcome string.
* @return The <code>view</code> identifier.
*/
private CaseStruct findDefaultMatch(String fromAction, String outcome) {
// if the user has elected to replace the Application instance
// entirely
if (!navigationConfigured) {
return null;
}
List<NavigationCase> caseList = caseListMap.get("*");
if (caseList == null) {
return null;
}
// We need to evaluate from-action/outcome in the follow
// order: 1)elements specifying both from-action and from-outcome
// 2) elements specifying only from-outcome
// 3) elements specifying only from-action
// 4) elements where both from-action and from-outcome are null
return determineViewFromActionOutcome(caseList, fromAction, outcome);
}
/**
* This method will attempt to find the <code>view</code> identifier based on action reference and
* outcome. Refer to section 7.4.2 of the specification for more details.
*
* @param caseList The list of navigation cases.
* @param fromAction The action reference string.
* @param outcome The outcome string.
* @return The <code>view</code> identifier.
*/
private CaseStruct determineViewFromActionOutcome(
List<NavigationCase> caseList, String fromAction, String outcome) {
CaseStruct result = new CaseStruct();
for (NavigationCase cnc : caseList) {
String cncFromAction = cnc.getFromAction();
String fromOutcome = cnc.getFromOutcome();
String toViewId = cnc.getToViewId();
if ((cncFromAction != null) && (fromOutcome != null)) {
if ((cncFromAction.equals(fromAction)) && (fromOutcome.equals(outcome))) {
result.viewId = toViewId;
result.navCase = cnc;
return result;
}
}
if ((cncFromAction == null) && (fromOutcome != null)) {
if (fromOutcome.equals(outcome)) {
result.viewId = toViewId;
result.navCase = cnc;
return result;
}
}
if ((cncFromAction != null) && (fromOutcome == null)) {
if (cncFromAction.equals(fromAction)) {
result.viewId = toViewId;
result.navCase = cnc;
return result;
}
}
if ((cncFromAction == null) && (fromOutcome == null)) {
result.viewId = toViewId;
result.navCase = cnc;
return result;
}
}
return null;
}
private static class CaseStruct {
String viewId;
NavigationCase navCase;
}
}
/**
* This <code>StateHelper</code> provides the functionality associated with server-side state
* saving, though in actuallity, it is a hybrid between client and server.
*/
public class ServerSideStateHelper extends StateHelper {
private static final Logger LOGGER = FacesLogger.APPLICATION.getLogger();
/** Key to store the <code>AtomicInteger</code> used to generate unique state map keys. */
public static final String STATEMANAGED_SERIAL_ID_KEY =
ServerSideStateHelper.class.getName() + ".SerialId";
/** The top level attribute name for storing the state structures within the session. */
public static final String LOGICAL_VIEW_MAP =
ServerSideStateHelper.class.getName() + ".LogicalViewMap";
/** The number of logical views as configured by the user. */
protected final Integer numberOfLogicalViews;
/** The number of views as configured by the user. */
protected final Integer numberOfViews;
/** Flag determining how server state IDs are generated. */
protected boolean generateUniqueStateIds;
/** Flag determining whether or not javax.faces.ViewState should be namespaced. */
protected boolean namespaceParameters;
/** Used to generate unique server state IDs. */
protected final Random random;
// ------------------------------------------------------------ Constructors
/** Construct a new <code>ServerSideStateHelper</code> instance. */
public ServerSideStateHelper() {
numberOfLogicalViews = getIntegerConfigValue(NumberOfLogicalViews);
numberOfViews = getIntegerConfigValue(NumberOfViews);
WebConfiguration webConfig = WebConfiguration.getInstance();
generateUniqueStateIds = webConfig.isOptionEnabled(GenerateUniqueServerStateIds);
if (generateUniqueStateIds) {
random = new Random(System.nanoTime() + webConfig.getServletContext().hashCode());
} else {
random = null;
}
namespaceParameters = webConfig.isOptionEnabled(NamespaceParameters);
}
// ------------------------------------------------ Methods from StateHelper
/**
* <p>
* Stores the provided state within the session obtained from the provided
* <code>FacesContext</code>
* </p>
*
* <p>If <code>stateCapture</code> is <code>null</code>, the composite
* key used to look up the actual and logical views will be written to
* the client as a hidden field using the <code>ResponseWriter</code>
* from the provided <code>FacesContext</code>.</p>
*
* <p>If <code>stateCapture</code> is not <code>null</code>, the composite
* key will be appended to the <code>StringBuilder<code> without any markup
* included or any content written to the client.
*/
public void writeState(FacesContext ctx, Object state, StringBuilder stateCapture)
throws IOException {
Util.notNull("context", ctx);
String id;
UIViewRoot viewRoot = ctx.getViewRoot();
if (!viewRoot.isTransient()) {
if (!ctx.getAttributes().containsKey("com.sun.faces.ViewStateValue")) {
Util.notNull("state", state);
Object[] stateToWrite = (Object[]) state;
ExternalContext externalContext = ctx.getExternalContext();
Object sessionObj = externalContext.getSession(true);
Map<String, Object> sessionMap = externalContext.getSessionMap();
//noinspection SynchronizationOnLocalVariableOrMethodParameter
synchronized (sessionObj) {
Map<String, Map> logicalMap =
TypedCollections.dynamicallyCastMap(
(Map) sessionMap.get(LOGICAL_VIEW_MAP), String.class, Map.class);
if (logicalMap == null) {
logicalMap = Collections.synchronizedMap(new LRUMap<String, Map>(numberOfLogicalViews));
sessionMap.put(LOGICAL_VIEW_MAP, logicalMap);
}
Object structure = stateToWrite[0];
Object savedState = handleSaveState(stateToWrite[1]);
String idInLogicalMap =
(String) RequestStateManager.get(ctx, RequestStateManager.LOGICAL_VIEW_MAP);
if (idInLogicalMap == null) {
idInLogicalMap =
((generateUniqueStateIds) ? createRandomId() : createIncrementalRequestId(ctx));
}
String idInActualMap = null;
if (ctx.getPartialViewContext().isPartialRequest()) {
// If partial request, do not change actual view Id, because page not actually changed.
// Otherwise partial requests will soon overflow cache with values that would be never
// used.
idInActualMap =
(String) RequestStateManager.get(ctx, RequestStateManager.ACTUAL_VIEW_MAP);
}
if (null == idInActualMap) {
idInActualMap =
((generateUniqueStateIds) ? createRandomId() : createIncrementalRequestId(ctx));
}
Map<String, Object[]> actualMap =
TypedCollections.dynamicallyCastMap(
logicalMap.get(idInLogicalMap), String.class, Object[].class);
if (actualMap == null) {
actualMap = new LRUMap<String, Object[]>(numberOfViews);
logicalMap.put(idInLogicalMap, actualMap);
}
id = idInLogicalMap + ':' + idInActualMap;
Object[] stateArray = actualMap.get(idInActualMap);
// reuse the array if possible
if (stateArray != null) {
stateArray[0] = structure;
stateArray[1] = savedState;
} else {
actualMap.put(idInActualMap, new Object[] {structure, savedState});
}
// always call put/setAttribute as we may be in a clustered environment.
sessionMap.put(LOGICAL_VIEW_MAP, logicalMap);
ctx.getAttributes().put("com.sun.faces.ViewStateValue", id);
}
} else {
id = (String) ctx.getAttributes().get("com.sun.faces.ViewStateValue");
}
} else {
id = "stateless";
}
if (stateCapture != null) {
stateCapture.append(id);
} else {
ResponseWriter writer = ctx.getResponseWriter();
writer.startElement("input", null);
writer.writeAttribute("type", "hidden", null);
String viewStateParam = ResponseStateManager.VIEW_STATE_PARAM;
if ((namespaceParameters) && (viewRoot instanceof NamingContainer)) {
String namingContainerId = viewRoot.getContainerClientId(ctx);
if (namingContainerId != null) {
viewStateParam = namingContainerId + viewStateParam;
}
}
writer.writeAttribute("name", viewStateParam, null);
if (webConfig.isOptionEnabled(EnableViewStateIdRendering)) {
String viewStateId = Util.getViewStateId(ctx);
writer.writeAttribute("id", viewStateId, null);
}
writer.writeAttribute("value", id, null);
if (webConfig.isOptionEnabled(AutoCompleteOffOnViewState)) {
writer.writeAttribute("autocomplete", "off", null);
}
writer.endElement("input");
writeClientWindowField(ctx, writer);
writeRenderKitIdField(ctx, writer);
}
}
/**
* Inspects the incoming request parameters for the standardized state parameter name. In this
* case, the parameter value will be the composite ID generated by
* ServerSideStateHelper#writeState(FacesContext, Object, StringBuilder).
*
* <p>The composite key will be used to find the appropriate view within the session obtained from
* the provided <code>FacesContext</code>
*/
public Object getState(FacesContext ctx, String viewId) {
String compoundId = getStateParamValue(ctx);
if (compoundId == null) {
return null;
}
if ("stateless".equals(compoundId)) {
return "stateless";
}
int sep = compoundId.indexOf(':');
assert (sep != -1);
assert (sep < compoundId.length());
String idInLogicalMap = compoundId.substring(0, sep);
String idInActualMap = compoundId.substring(sep + 1);
ExternalContext externalCtx = ctx.getExternalContext();
Object sessionObj = externalCtx.getSession(false);
// stop evaluating if the session is not available
if (sessionObj == null) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(
Level.FINE,
"Unable to restore server side state for view ID {0} as no session is available",
viewId);
}
return null;
}
//noinspection SynchronizationOnLocalVariableOrMethodParameter
synchronized (sessionObj) {
Map logicalMap = (Map) externalCtx.getSessionMap().get(LOGICAL_VIEW_MAP);
if (logicalMap != null) {
Map actualMap = (Map) logicalMap.get(idInLogicalMap);
if (actualMap != null) {
RequestStateManager.set(ctx, RequestStateManager.LOGICAL_VIEW_MAP, idInLogicalMap);
Object[] state = (Object[]) actualMap.get(idInActualMap);
Object[] restoredState = new Object[2];
restoredState[0] = state[0];
restoredState[1] = state[1];
if (state != null) {
RequestStateManager.set(ctx, RequestStateManager.ACTUAL_VIEW_MAP, idInActualMap);
if (state.length == 2 && state[1] != null) {
restoredState[1] = handleRestoreState(state[1]);
}
}
return restoredState;
}
}
}
return null;
}
// ------------------------------------------------------- Protected Methods
/**
* Utility method for obtaining the <code>Integer</code> based configuration values used to change
* the behavior of the <code>ServerSideStateHelper</code>.
*
* @param param the paramter to parse
* @return the Integer representation of the parameter value
*/
protected Integer getIntegerConfigValue(WebContextInitParameter param) {
String noOfViewsStr = webConfig.getOptionValue(param);
Integer value = null;
try {
value = Integer.valueOf(noOfViewsStr);
} catch (NumberFormatException nfe) {
String defaultValue = param.getDefaultValue();
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.log(
Level.WARNING,
"jsf.state.server.cannot.parse.int.option",
new Object[] {param.getQualifiedName(), defaultValue});
}
try {
value = Integer.valueOf(defaultValue);
} catch (NumberFormatException ne) {
if (LOGGER.isLoggable(Level.FINEST)) {
LOGGER.log(Level.FINEST, "Unable to convert number", ne);
}
}
}
return value;
}
/**
* @param state the object returned from <code>UIView.processSaveState</code>
* @return If {@link
* com.sun.faces.config.WebConfiguration.BooleanWebContextInitParameter#SerializeServerStateDeprecated}
* is <code>true</code>, serialize and return the state, otherwise, return <code>state</code>
* unchanged.
*/
protected Object handleSaveState(Object state) {
if (webConfig.isOptionEnabled(SerializeServerStateDeprecated)
|| webConfig.isOptionEnabled(SerializeServerState)) {
ByteArrayOutputStream baos = new ByteArrayOutputStream(1024);
ObjectOutputStream oas = null;
try {
oas =
serialProvider.createObjectOutputStream(
((compressViewState) ? new GZIPOutputStream(baos, 1024) : baos));
//noinspection NonSerializableObjectPassedToObjectStream
oas.writeObject(state);
oas.flush();
} catch (Exception e) {
throw new FacesException(e);
} finally {
if (oas != null) {
try {
oas.close();
} catch (IOException ioe) {
if (LOGGER.isLoggable(Level.FINEST)) {
LOGGER.log(Level.FINEST, "Closing stream", ioe);
}
}
}
}
return baos.toByteArray();
} else {
return state;
}
}
/**
* @param state the state as it was stored in the session
* @return an object that can be passed to <code>UIViewRoot.processRestoreState</code>. If {@link
* com.sun.faces.config.WebConfiguration.BooleanWebContextInitParameter#SerializeServerStateDeprecated}
* de-serialize the state prior to returning it, otherwise return <code>state</code> as is.
*/
protected Object handleRestoreState(Object state) {
if (webConfig.isOptionEnabled(SerializeServerStateDeprecated)
|| webConfig.isOptionEnabled(SerializeServerState)) {
ByteArrayInputStream bais = new ByteArrayInputStream((byte[]) state);
ObjectInputStream ois = null;
try {
ois =
serialProvider.createObjectInputStream(
((compressViewState) ? new GZIPInputStream(bais, 1024) : bais));
return ois.readObject();
} catch (Exception e) {
throw new FacesException(e);
} finally {
if (ois != null) {
try {
ois.close();
} catch (IOException ioe) {
if (LOGGER.isLoggable(Level.FINEST)) {
LOGGER.log(Level.FINEST, "Closing stream", ioe);
}
}
}
}
} else {
return state;
}
}
/**
* @param ctx the <code>FacesContext</code> for the current request
* @return a unique ID for building the keys used to store views within a session
*/
private String createIncrementalRequestId(FacesContext ctx) {
Map<String, Object> sm = ctx.getExternalContext().getSessionMap();
AtomicInteger idgen = (AtomicInteger) sm.get(STATEMANAGED_SERIAL_ID_KEY);
if (idgen == null) {
idgen = new AtomicInteger(1);
}
// always call put/setAttribute as we may be in a clustered environment.
sm.put(STATEMANAGED_SERIAL_ID_KEY, idgen);
return (UIViewRoot.UNIQUE_ID_PREFIX + idgen.getAndIncrement());
}
private String createRandomId() {
return Long.valueOf(random.nextLong()).toString();
}
/**
* Is stateless.
*
* @param facesContext the Faces context.
* @param viewId the view id.
* @return true if stateless, false otherwise.
* @throws IllegalStateException when the request was not a postback.
*/
@Override
public boolean isStateless(FacesContext facesContext, String viewId)
throws IllegalStateException {
if (facesContext.isPostback()) {
Object stateObject = getState(facesContext, viewId);
if (stateObject instanceof String && "stateless".equals((String) stateObject)) {
return true;
}
return false;
}
throw new IllegalStateException("Cannot determine whether or not the request is stateless");
}
}
/** This {@link ViewHandlingStrategy} handles JSP-based views. */
public class JspViewHandlingStrategy extends ViewHandlingStrategy {
private static final Logger LOGGER = FacesLogger.APPLICATION.getLogger();
private int responseBufferSize;
// ------------------------------------------------------------ Constructors
public JspViewHandlingStrategy() {
try {
responseBufferSize = Integer.parseInt(webConfig.getOptionValue(ResponseBufferSize));
} catch (NumberFormatException nfe) {
responseBufferSize = Integer.parseInt(ResponseBufferSize.getDefaultValue());
}
}
// ------------------------------------ Methods from ViewDeclarationLanguage
/**
* Not supported in JSP-based views.
*
* @see
* javax.faces.view.ViewDeclarationLanguage#getComponentMetadata(javax.faces.context.FacesContext,
* javax.faces.application.Resource)
*/
@Override
public BeanInfo getComponentMetadata(FacesContext context, Resource componentResource) {
throw new UnsupportedOperationException();
}
/**
* Not supported in JSP-based views.
*
* @see javax.faces.view.ViewDeclarationLanguage#getViewMetadata(javax.faces.context.FacesContext,
* String)
*/
@Override
public ViewMetadata getViewMetadata(FacesContext context, String viewId) {
return null;
}
/**
* Not supported in JSP-based views.
*
* @see
* javax.faces.view.ViewDeclarationLanguage#getScriptComponentResource(javax.faces.context.FacesContext,
* javax.faces.application.Resource)
*/
@Override
public Resource getScriptComponentResource(FacesContext context, Resource componentResource) {
throw new UnsupportedOperationException();
}
/**
* @see javax.faces.view.ViewDeclarationLanguage#buildView(javax.faces.context.FacesContext,
* javax.faces.component.UIViewRoot)
* @param context
* @param view
* @throws IOException
*/
public void buildView(FacesContext context, UIViewRoot view) throws IOException {
if (Util.isViewPopulated(context, view)) {
return;
}
try {
if (executePageToBuildView(context, view)) {
context.getExternalContext().responseFlushBuffer();
if (associate != null) {
associate.responseRendered();
}
context.responseComplete();
return;
}
} catch (IOException e) {
throw new FacesException(e);
}
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, "Completed building view for : \n" + view.getViewId());
}
context
.getApplication()
.publishEvent(context, PostAddToViewEvent.class, UIViewRoot.class, view);
Util.setViewPopulated(context, view);
}
/**
* @see javax.faces.view.ViewDeclarationLanguage#renderView(javax.faces.context.FacesContext,
* javax.faces.component.UIViewRoot)
*/
public void renderView(FacesContext context, UIViewRoot view) throws IOException {
// suppress rendering if "rendered" property on the component is
// false
if (!view.isRendered() || context.getResponseComplete()) {
return;
}
ExternalContext extContext = context.getExternalContext();
if (!Util.isViewPopulated(context, view)) {
buildView(context, view);
}
// set up the ResponseWriter
RenderKitFactory renderFactory =
(RenderKitFactory) FactoryFinder.getFactory(FactoryFinder.RENDER_KIT_FACTORY);
RenderKit renderKit = renderFactory.getRenderKit(context, view.getRenderKitId());
ResponseWriter oldWriter = context.getResponseWriter();
WriteBehindStateWriter stateWriter =
new WriteBehindStateWriter(
extContext.getResponseOutputWriter(), context, responseBufferSize);
ResponseWriter newWriter;
if (null != oldWriter) {
newWriter = oldWriter.cloneWithWriter(stateWriter);
} else {
newWriter =
renderKit.createResponseWriter(
stateWriter, null, extContext.getRequestCharacterEncoding());
}
context.setResponseWriter(newWriter);
// Don't call startDoc and endDoc on a partial response
if (context.getPartialViewContext().isPartialRequest()) {
doRenderView(context, view);
try {
extContext.getFlash().doPostPhaseActions(context);
} catch (UnsupportedOperationException uoe) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine(
"ExternalContext.getFlash() throw UnsupportedOperationException -> Flash unavailable");
}
}
} else {
// render the view to the response
newWriter.startDocument();
doRenderView(context, view);
try {
extContext.getFlash().doPostPhaseActions(context);
} catch (UnsupportedOperationException uoe) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine(
"ExternalContext.getFlash() throw UnsupportedOperationException -> Flash unavailable");
}
}
newWriter.endDocument();
}
// replace markers in the body content and write it to response.
// flush directly to the response
if (stateWriter.stateWritten()) {
stateWriter.flushToWriter();
}
// clear the ThreadLocal reference.
stateWriter.release();
if (null != oldWriter) {
context.setResponseWriter(oldWriter);
}
// write any AFTER_VIEW_CONTENT to the response
// side effect: AFTER_VIEW_CONTENT removed
ViewHandlerResponseWrapper wrapper =
(ViewHandlerResponseWrapper)
RequestStateManager.remove(context, RequestStateManager.AFTER_VIEW_CONTENT);
if (null != wrapper) {
wrapper.flushToWriter(
extContext.getResponseOutputWriter(), extContext.getResponseCharacterEncoding());
}
extContext.responseFlushBuffer();
}
@Override
public StateManagementStrategy getStateManagementStrategy(FacesContext context, String viewId) {
return null;
}
// --------------------------------------- Methods from ViewHandlingStrategy
/**
* This {@link ViewHandlingStrategy} <em>should</em> be the last one queried and as such we return
* <code>true</code>.
*
* @see com.sun.faces.application.view.ViewHandlingStrategy#handlesViewId(String)
*/
@Override
public boolean handlesViewId(String viewId) {
return true;
}
// --------------------------------------------------------- Private Methods
/**
* Execute the target view. If the HTTP status code range is not 2xx, then return true to indicate
* the response should be immediately flushed by the caller so that conditions such as 404 are
* properly handled.
*
* @param context the <code>FacesContext</code> for the current request
* @param viewToExecute the view to build
* @return <code>true</code> if the response should be immediately flushed to the client,
* otherwise <code>false</code>
* @throws java.io.IOException if an error occurs executing the page
*/
private boolean executePageToBuildView(FacesContext context, UIViewRoot viewToExecute)
throws IOException {
if (null == context) {
String message =
MessageUtils.getExceptionMessageString(
MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "context");
throw new NullPointerException(message);
}
if (null == viewToExecute) {
String message =
MessageUtils.getExceptionMessageString(
MessageUtils.NULL_PARAMETERS_ERROR_MESSAGE_ID, "viewToExecute");
throw new NullPointerException(message);
}
ExternalContext extContext = context.getExternalContext();
if ("/*".equals(RequestStateManager.get(context, RequestStateManager.INVOCATION_PATH))) {
throw new FacesException(
MessageUtils.getExceptionMessageString(MessageUtils.FACES_SERVLET_MAPPING_INCORRECT_ID));
}
String requestURI = viewToExecute.getViewId();
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("About to execute view " + requestURI);
}
// update the JSTL locale attribute in request scope so that JSTL
// picks up the locale from viewRoot. This attribute must be updated
// before the JSTL setBundle tag is called because that is when the
// new LocalizationContext object is created based on the locale.
if (extContext.getRequest() instanceof ServletRequest) {
Config.set(
(ServletRequest) extContext.getRequest(),
Config.FMT_LOCALE,
context.getViewRoot().getLocale());
}
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("Before dispacthMessage to viewId " + requestURI);
}
// save the original response
Object originalResponse = extContext.getResponse();
// replace the response with our wrapper
ViewHandlerResponseWrapper wrapped = getWrapper(extContext);
extContext.setResponse(wrapped);
try {
// build the view by executing the page
extContext.dispatch(requestURI);
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("After dispacthMessage to viewId " + requestURI);
}
} finally {
// replace the original response
extContext.setResponse(originalResponse);
}
// Follow the JSTL 1.2 spec, section 7.4,
// on handling status codes on a forward
if (wrapped.getStatus() < 200 || wrapped.getStatus() > 299) {
// flush the contents of the wrapper to the response
// this is necessary as the user may be using a custom
// error page - this content should be propagated
wrapped.flushContentToWrappedResponse();
return true;
}
// Put the AFTER_VIEW_CONTENT into request scope
// temporarily
RequestStateManager.set(context, RequestStateManager.AFTER_VIEW_CONTENT, wrapped);
return false;
}
/**
* This is a separate method to account for handling the content after the view tag.
*
* <p>Create a new ResponseWriter around this response's Writer. Set it into the FacesContext,
* saving the old one aside.
*
* <p>call encodeBegin(), encodeChildren(), encodeEnd() on the argument <code>UIViewRoot</code>.
*
* <p>Restore the old ResponseWriter into the FacesContext.
*
* <p>Write out the after view content to the response's writer.
*
* <p>Flush the response buffer, and remove the after view content from the request scope.
*
* @param context the <code>FacesContext</code> for the current request
* @param viewToRender the view to render
* @throws java.io.IOException if an error occurs rendering the view to the client
* @throws javax.faces.FacesException if some error occurs within the framework processing
*/
private void doRenderView(FacesContext context, UIViewRoot viewToRender) throws IOException {
if (null != associate) {
associate.responseRendered();
}
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, "About to render view " + viewToRender.getViewId());
}
viewToRender.encodeAll(context);
}
/**
* Simple utility method to wrap the current response with the {@link ViewHandlerResponseWrapper}.
*
* @param extContext the {@link ExternalContext} for this request
* @return the current response wrapped with ViewHandlerResponseWrapper
*/
private static ViewHandlerResponseWrapper getWrapper(ExternalContext extContext) {
Object response = extContext.getResponse();
if (response instanceof HttpServletResponse) {
return new ViewHandlerResponseWrapper((HttpServletResponse) response);
}
throw new IllegalArgumentException();
}
}
/**
* Break out the things that are associated with the Application, but need to be present even when
* the user has replaced the Application instance.
*
* <p>
*
* <p>For example: the user replaces ApplicationFactory, and wants to intercept calls to
* createValueExpression() and createMethodExpression() for certain kinds of expressions, but allow
* the existing application to handle the rest.
*/
public class ApplicationAssociate {
private static final Logger LOGGER = FacesLogger.APPLICATION.getLogger();
private ApplicationImpl app = null;
/**
* Overall Map containing <code>from-view-id</code> key and <code>Set</code> of <code>
* NavigationCase</code> objects for that key; The <code>from-view-id</code> strings in this map
* will be stored as specified in the configuration file - some of them will have a trailing
* asterisk "*" signifying wild card, and some may be specified as an asterisk "*".
*/
private Map<String, Set<NavigationCase>> navigationMap = null;
// Flag indicating that a response has been rendered.
private boolean responseRendered = false;
private static final String ASSOCIATE_KEY = RIConstants.FACES_PREFIX + "ApplicationAssociate";
private static ThreadLocal<ApplicationAssociate> instance =
new ThreadLocal<ApplicationAssociate>() {
protected ApplicationAssociate initialValue() {
return (null);
}
};
private List<ELResolver> elResolversFromFacesConfig = null;
@SuppressWarnings("deprecation")
private VariableResolver legacyVRChainHead = null;
private VariableResolverChainWrapper legacyVRChainHeadWrapperForJsp = null;
private VariableResolverChainWrapper legacyVRChainHeadWrapperForFaces = null;
@SuppressWarnings("deprecation")
private PropertyResolver legacyPRChainHead = null;
private ExpressionFactory expressionFactory = null;
@SuppressWarnings("deprecation")
private PropertyResolver legacyPropertyResolver = null;
@SuppressWarnings("deprecation")
private VariableResolver legacyVariableResolver = null;
private FacesCompositeELResolver facesELResolverForJsp = null;
private InjectionProvider injectionProvider;
private ResourceCache resourceCache;
private String contextName;
private boolean requestServiced;
private boolean errorPagePresent;
private BeanManager beanManager;
private GroovyHelper groovyHelper;
private AnnotationManager annotationManager;
private boolean devModeEnabled;
private Compiler compiler;
private FaceletFactory faceletFactory;
private ResourceManager resourceManager;
private ApplicationStateInfo applicationStateInfo;
private PropertyEditorHelper propertyEditorHelper;
private NamedEventManager namedEventManager;
public ApplicationAssociate(ApplicationImpl appImpl) {
app = appImpl;
propertyEditorHelper = new PropertyEditorHelper(appImpl);
FacesContext ctx = FacesContext.getCurrentInstance();
if (ctx == null) {
throw new IllegalStateException(
MessageUtils.getExceptionMessageString(
MessageUtils.APPLICATION_ASSOCIATE_CTOR_WRONG_CALLSTACK_ID));
}
ExternalContext externalContext = ctx.getExternalContext();
if (null != externalContext.getApplicationMap().get(ASSOCIATE_KEY)) {
throw new IllegalStateException(
MessageUtils.getExceptionMessageString(MessageUtils.APPLICATION_ASSOCIATE_EXISTS_ID));
}
externalContext.getApplicationMap().put(ASSOCIATE_KEY, this);
//noinspection CollectionWithoutInitialCapacity
navigationMap = new ConcurrentHashMap<String, Set<NavigationCase>>();
injectionProvider = InjectionProviderFactory.createInstance(externalContext);
WebConfiguration webConfig = WebConfiguration.getInstance(externalContext);
beanManager =
new BeanManager(injectionProvider, webConfig.isOptionEnabled(EnableLazyBeanValidation));
// install the bean manager as a system event listener for custom
// scopes being destoryed.
app.subscribeToEvent(PreDestroyCustomScopeEvent.class, ScopeContext.class, beanManager);
annotationManager = new AnnotationManager();
groovyHelper = GroovyHelper.getCurrentInstance();
devModeEnabled = (appImpl.getProjectStage() == ProjectStage.Development);
// initialize Facelets
if (!webConfig.isOptionEnabled(DisableFaceletJSFViewHandler)) {
compiler = createCompiler(webConfig);
faceletFactory = createFaceletFactory(compiler, webConfig);
}
if (!devModeEnabled) {
resourceCache = new ResourceCache();
}
resourceManager = new ResourceManager(resourceCache);
namedEventManager = new NamedEventManager();
applicationStateInfo = new ApplicationStateInfo();
}
public static ApplicationAssociate getInstance(ExternalContext externalContext) {
if (externalContext == null) {
return null;
}
Map applicationMap = externalContext.getApplicationMap();
return ((ApplicationAssociate) applicationMap.get(ASSOCIATE_KEY));
}
public static ApplicationAssociate getInstance(ServletContext context) {
if (context == null) {
return null;
}
return (ApplicationAssociate) context.getAttribute(ASSOCIATE_KEY);
}
public static void setCurrentInstance(ApplicationAssociate associate) {
if (associate == null) {
instance.remove();
} else {
instance.set(associate);
}
}
public static ApplicationAssociate getCurrentInstance() {
ApplicationAssociate associate = instance.get();
if (associate == null) {
// Fallback to ExternalContext lookup
FacesContext fc = FacesContext.getCurrentInstance();
if (fc != null) {
ExternalContext extContext = fc.getExternalContext();
if (extContext != null) {
return ApplicationAssociate.getInstance(extContext);
}
}
}
return associate;
}
public ApplicationStateInfo getApplicationStateInfo() {
return applicationStateInfo;
}
public ResourceManager getResourceManager() {
return resourceManager;
}
public void setResourceManager(ResourceManager resourceManager) {
this.resourceManager = resourceManager;
}
public ResourceCache getResourceCache() {
return resourceCache;
}
public AnnotationManager getAnnotationManager() {
return annotationManager;
}
public Compiler getCompiler() {
return compiler;
}
public boolean isErrorPagePresent() {
return errorPagePresent;
}
public void setErrorPagePresent(boolean errorPagePresent) {
this.errorPagePresent = errorPagePresent;
}
public FaceletFactory getFaceletFactory() {
return faceletFactory;
}
public static void clearInstance(ExternalContext externalContext) {
Map applicationMap = externalContext.getApplicationMap();
ApplicationAssociate me = (ApplicationAssociate) applicationMap.get(ASSOCIATE_KEY);
if (null != me) {
if (null != me.resourceBundles) {
me.resourceBundles.clear();
}
}
applicationMap.remove(ASSOCIATE_KEY);
}
public static void clearInstance(ServletContext sc) {
ApplicationAssociate me = (ApplicationAssociate) sc.getAttribute(ASSOCIATE_KEY);
if (null != me) {
if (null != me.resourceBundles) {
me.resourceBundles.clear();
}
}
sc.removeAttribute(ASSOCIATE_KEY);
}
public BeanManager getBeanManager() {
return beanManager;
}
public GroovyHelper getGroovyHelper() {
return groovyHelper;
}
public void initializeELResolverChains() {
// 1. initialize the chains with default values
if (null == app.compositeELResolver) {
app.compositeELResolver =
new DemuxCompositeELResolver(FacesCompositeELResolver.ELResolverChainType.Faces);
ELUtils.buildFacesResolver(app.compositeELResolver, this);
ELResolverInitPhaseListener.populateFacesELResolverForJsp(app, this);
}
}
public void installProgrammaticallyAddedResolvers() {
// Ensure custom resolvers are inserted at the correct place.
VariableResolver vr = this.getLegacyVariableResolver();
if (null != vr) {
assert (null != this.getLegacyVRChainHeadWrapperForJsp());
this.getLegacyVRChainHeadWrapperForJsp().setWrapped(vr);
assert (null != this.getLegacyVRChainHeadWrapperForFaces());
this.getLegacyVRChainHeadWrapperForFaces().setWrapped(vr);
}
}
public boolean isDevModeEnabled() {
return devModeEnabled;
}
/**
* Obtain the PropertyEditorHelper instance for this app.
*
* @return The PropertyEditorHeler instance for this app.
*/
public PropertyEditorHelper getPropertyEditorHelper() {
return propertyEditorHelper;
}
/**
* This method is called by <code>ConfigureListener</code> and will contain any <code>
* VariableResolvers</code> defined within faces-config configuration files.
*
* @param resolver VariableResolver
*/
@SuppressWarnings("deprecation")
public void setLegacyVRChainHead(VariableResolver resolver) {
this.legacyVRChainHead = resolver;
}
@SuppressWarnings("deprecation")
public VariableResolver getLegacyVRChainHead() {
return legacyVRChainHead;
}
public VariableResolverChainWrapper getLegacyVRChainHeadWrapperForJsp() {
return legacyVRChainHeadWrapperForJsp;
}
public void setLegacyVRChainHeadWrapperForJsp(
VariableResolverChainWrapper legacyVRChainHeadWrapper) {
this.legacyVRChainHeadWrapperForJsp = legacyVRChainHeadWrapper;
}
public VariableResolverChainWrapper getLegacyVRChainHeadWrapperForFaces() {
return legacyVRChainHeadWrapperForFaces;
}
public void setLegacyVRChainHeadWrapperForFaces(
VariableResolverChainWrapper legacyVRChainHeadWrapperForFaces) {
this.legacyVRChainHeadWrapperForFaces = legacyVRChainHeadWrapperForFaces;
}
/**
* This method is called by <code>ConfigureListener</code> and will contain any <code>
* PropertyResolvers</code> defined within faces-config configuration files.
*
* @param resolver PropertyResolver
*/
@SuppressWarnings("deprecation")
public void setLegacyPRChainHead(PropertyResolver resolver) {
this.legacyPRChainHead = resolver;
}
@SuppressWarnings("deprecation")
public PropertyResolver getLegacyPRChainHead() {
return legacyPRChainHead;
}
public FacesCompositeELResolver getFacesELResolverForJsp() {
return facesELResolverForJsp;
}
public void setFacesELResolverForJsp(FacesCompositeELResolver celr) {
facesELResolverForJsp = celr;
}
public void setELResolversFromFacesConfig(List<ELResolver> resolvers) {
this.elResolversFromFacesConfig = resolvers;
}
public List<ELResolver> getELResolversFromFacesConfig() {
return elResolversFromFacesConfig;
}
public void setExpressionFactory(ExpressionFactory expressionFactory) {
this.expressionFactory = expressionFactory;
}
public ExpressionFactory getExpressionFactory() {
return this.expressionFactory;
}
public CompositeELResolver getApplicationELResolvers() {
return app.getApplicationELResolvers();
}
public InjectionProvider getInjectionProvider() {
return injectionProvider;
}
public void setContextName(String contextName) {
this.contextName = contextName;
}
public String getContextName() {
return contextName;
}
/**
* Maintains the PropertyResolver called through Application.setPropertyResolver()
*
* @param resolver PropertyResolver
*/
@SuppressWarnings("deprecation")
public void setLegacyPropertyResolver(PropertyResolver resolver) {
this.legacyPropertyResolver = resolver;
}
/** @return the PropertyResolver called through Application.getPropertyResolver() */
@SuppressWarnings("deprecation")
public PropertyResolver getLegacyPropertyResolver() {
return legacyPropertyResolver;
}
/**
* Maintains the PropertyResolver called through Application.setVariableResolver()
*
* @param resolver VariableResolver
*/
@SuppressWarnings("deprecation")
public void setLegacyVariableResolver(VariableResolver resolver) {
this.legacyVariableResolver = resolver;
}
/** @return the VariableResolver called through Application.getVariableResolver() */
@SuppressWarnings("deprecation")
public VariableResolver getLegacyVariableResolver() {
return legacyVariableResolver;
}
/**
* Called by application code to indicate we've processed the first request to the application.
*/
public void setRequestServiced() {
this.requestServiced = true;
}
/** @return <code>true</code> if we've processed a request, otherwise <code>false</code> */
public boolean hasRequestBeenServiced() {
return requestServiced;
}
/**
* Add a navigation case to the internal case set. If a case set does not already exist in the
* case list map containing this case (identified by <code>from-view-id</code>), start a new list,
* add the case to it, and store the set in the case set map. If a case set already exists,
* overwrite the previous case.
*
* @param navigationCase the navigation case containing navigation mapping information from the
* configuration file.
*/
public void addNavigationCase(NavigationCase navigationCase) {
String fromViewId = navigationCase.getFromViewId();
Set<NavigationCase> caseSet = navigationMap.get(fromViewId);
if (caseSet == null) {
//noinspection CollectionWithoutInitialCapacity
caseSet = new LinkedHashSet<NavigationCase>();
caseSet.add(navigationCase);
navigationMap.put(fromViewId, caseSet);
} else {
// if there already is a case existing for the
// fromviewid/fromaction.fromoutcome combination,
// replace it ... (last one wins).
caseSet.add(navigationCase);
}
}
public NamedEventManager getNamedEventManager() {
return namedEventManager;
}
/**
* Return a <code>Map</code> of navigation mappings loaded from the configuration system. The key
* for the returned <code>Map</code> is <code>from-view-id</code>, and the value is a <code>List
* </code> of navigation cases.
*
* @return Map the map of navigation mappings.
*/
public Map<String, Set<NavigationCase>> getNavigationCaseListMappings() {
if (navigationMap == null) {
return Collections.emptyMap();
}
return navigationMap;
}
public ResourceBundle getResourceBundle(FacesContext context, String var) {
ApplicationResourceBundle bundle = resourceBundles.get(var);
if (bundle == null) {
return null;
}
UIViewRoot root;
// Start out with the default locale
Locale locale;
Locale defaultLocale = Locale.getDefault();
locale = defaultLocale;
// See if this FacesContext has a ViewRoot
if (null != (root = context.getViewRoot())) {
// If so, ask it for its Locale
if (null == (locale = root.getLocale())) {
// If the ViewRoot has no Locale, fall back to the default.
locale = defaultLocale;
}
}
assert (null != locale);
// ResourceBundleBean bean = resourceBundles.get(var);
return bundle.getResourceBundle(locale);
}
/**
* keys: <var> element from faces-config
*
* <p>
*
* <p>values: ResourceBundleBean instances.
*/
@SuppressWarnings({"CollectionWithoutInitialCapacity"})
Map<String, ApplicationResourceBundle> resourceBundles =
new HashMap<String, ApplicationResourceBundle>();
public void addResourceBundle(String var, ApplicationResourceBundle bundle) {
resourceBundles.put(var, bundle);
}
public Map<String, ApplicationResourceBundle> getResourceBundles() {
return resourceBundles;
}
// This is called by ViewHandlerImpl.renderView().
public void responseRendered() {
responseRendered = true;
}
public boolean isResponseRendered() {
return responseRendered;
}
protected FaceletFactory createFaceletFactory(Compiler c, WebConfiguration webConfig) {
// refresh period
String refreshPeriod = webConfig.getOptionValue(FaceletsDefaultRefreshPeriod);
long period = Long.parseLong(refreshPeriod);
// resource resolver
ResourceResolver resolver = new DefaultResourceResolver();
String resolverName = webConfig.getOptionValue(FaceletsResourceResolver);
if (resolverName != null && resolverName.length() > 0) {
resolver =
(ResourceResolver)
ReflectionUtil.decorateInstance(resolverName, ResourceResolver.class, resolver);
}
FaceletCache cache = null;
String faceletCacheName = webConfig.getOptionValue(FaceletCache);
if (faceletCacheName != null && faceletCacheName.length() > 0) {
try {
com.sun.faces.facelets.FaceletCache privateApiCache =
(com.sun.faces.facelets.FaceletCache)
ReflectionUtil.forName(faceletCacheName).newInstance();
cache = new PrivateApiFaceletCacheAdapter(privateApiCache);
} catch (Exception e) {
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(Level.SEVERE, "Error Loading Facelet cache: " + faceletCacheName, e);
}
}
}
if (null == cache) {
FaceletCacheFactory cacheFactory =
(FaceletCacheFactory) FactoryFinder.getFactory(FactoryFinder.FACELET_CACHE_FACTORY);
cache = cacheFactory.getFaceletCache();
}
// Resource.getResourceUrl(ctx,"/")
FaceletFactory factory = new DefaultFaceletFactory(c, resolver, period, cache);
// Check to see if a custom Factory has been defined
String factoryClass = webConfig.getOptionValue(FaceletFactory);
if (factoryClass != null && factoryClass.length() > 0) {
factory =
(FaceletFactory)
ReflectionUtil.decorateInstance(factoryClass, FaceletFactory.class, factory);
}
return factory;
}
protected Compiler createCompiler(WebConfiguration webConfig) {
Compiler c = new SAXCompiler();
// load decorators
String decParam = webConfig.getOptionValue(FaceletsDecorators);
if (decParam != null) {
decParam = decParam.trim();
String[] decs = Util.split(decParam, ";");
TagDecorator decObj;
for (String decorator : decs) {
try {
decObj = (TagDecorator) ReflectionUtil.forName(decorator).newInstance();
c.addTagDecorator(decObj);
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, "Successfully Loaded Decorator: {0}", decorator);
}
} catch (Exception e) {
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(Level.SEVERE, "Error Loading Decorator: " + decorator, e);
}
}
}
}
// skip params?
c.setTrimmingComments(
webConfig.isOptionEnabled(BooleanWebContextInitParameter.FaceletsSkipComments));
c.addTagLibrary(new CoreLibrary());
c.addTagLibrary(new HtmlLibrary());
c.addTagLibrary(new UILibrary());
c.addTagLibrary(new JstlCoreLibrary());
c.addTagLibrary(
new FunctionLibrary(JstlFunction.class, "http://java.sun.com/jsp/jstl/functions"));
if (isDevModeEnabled()) {
c.addTagLibrary(
new FunctionLibrary(DevTools.class, "http://java.sun.com/mojarra/private/functions"));
}
c.addTagLibrary(new CompositeLibrary());
c.addTagLibrary(new XmlLibrary());
return c;
}
}
/** A factory for creating <code>SerializationProvider</code> instances. */
public class SerializationProviderFactory {
/** Our default <code>SerializationProvider</code>. */
private static final SerializationProvider JAVA_PROVIDER =
new SerializationProviderFactory.JavaSerializationProvider();
/**
* The system property that will be checked for alternate <code>SerializationProvider</code>
* implementations.
*/
private static final String SERIALIZATION_PROVIDER_PROPERTY =
RIConstants.FACES_PREFIX + "SerializationProvider";
private static final Logger LOGGER = FacesLogger.APPLICATION.getLogger();
/**
* Creates a new instance of the class specified by the <code>com.sun.faces.InjectionProvider
* </code> system property. If this propery is not defined, then a default, no-op, <code>
* InjectionProvider</code> will be returned.
*
* @param extContext the ExternalContext for this application
* @return an implementation of the <code>InjectionProvider</code> interfaces
*/
public static SerializationProvider createInstance(ExternalContext extContext) {
String providerClass = findProviderClass(extContext);
SerializationProvider provider = getProviderInstance(providerClass);
if (provider.getClass() != JavaSerializationProvider.class) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(
Level.FINE,
"jsf.spi.serialization.provider_configured",
new Object[] {provider.getClass().getName()});
}
}
return provider;
}
private static SerializationProvider getProviderInstance(String className) {
SerializationProvider provider = JAVA_PROVIDER;
if (className != null) {
try {
Class<?> clazz = Util.loadClass(className, SerializationProviderFactory.class);
if (implementsSerializationProvider(clazz)) {
provider = (SerializationProvider) clazz.newInstance();
} else {
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(
Level.SEVERE,
"jsf.spi.serialization.provider_not_implemented",
new Object[] {className});
}
}
} catch (ClassNotFoundException cnfe) {
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(
Level.SEVERE, "jsf.spi.serialization.provider_not_found", new Object[] {className});
}
} catch (InstantiationException | IllegalAccessException ie) {
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(
Level.SEVERE,
"jsf.spi.serialization.provider_cannot_instantiate",
new Object[] {className});
LOGGER.log(Level.SEVERE, "", ie);
}
}
}
return provider;
}
/**
* Determine if the specified class implements the <code>SerializationProvider</code> interfaces.
*
* @param clazz the class in question
* @return <code>true</code> if <code>clazz</code> implements the <code>SerializationProvider
* </code> interface
*/
private static boolean implementsSerializationProvider(Class<?> clazz) {
return SerializationProvider.class.isAssignableFrom(clazz);
}
/**
* Tries to find a provider class in a web context parameter. If not present it tries to find it
* as a System property. If still not found returns null.
*
* @param extContext The ExternalContext for this request
* @return The provider class name specified in the container configuration, or <code>null</code>
* if not found.
*/
private static String findProviderClass(ExternalContext extContext) {
WebConfiguration webConfig = WebConfiguration.getInstance(extContext);
String provider = webConfig.getOptionValue(WebContextInitParameter.SerializationProviderClass);
if (provider != null) {
return provider;
} else {
return System.getProperty(SERIALIZATION_PROVIDER_PROPERTY);
}
}
/**
* An implementation of <code>SerializationProvider</code> which uses standard Java serialization.
*/
private static final class JavaSerializationProvider implements SerializationProvider {
/**
* Creates a new <code>ObjectOutputStream</code> wrapping the specified <code>destination</code>
* .
*
* @param destination the destination of the serialized Object(s)
* @return an <code>ObjectOutputStream</code>
*/
@Override
public ObjectOutputStream createObjectOutputStream(OutputStream destination)
throws IOException {
return new ObjectOutputStream(destination);
}
/**
* Creates a new <code>ObjectInputStream</code> wrapping the specified <code>source</code>.
*
* @param source the source stream from which to read the Object(s) from
* @return an <code>ObjectInputStream</code>
*/
@Override
public ObjectInputStream createObjectInputStream(InputStream source) throws IOException {
return new ApplicationObjectInputStream(source);
}
}
} // END InjectionProviderFactory
/** This {@link ViewHandlingStrategy} handles Facelets/PDL-based views. */
public class FaceletViewHandlingStrategy extends ViewHandlingStrategy {
private static final Logger LOGGER = FacesLogger.APPLICATION.getLogger();
// FaceletFactory singleton for this application
private FaceletFactory faceletFactory;
// Array of viewId extensions that should be handled by Facelets
private String[] extensionsArray;
// Array of viewId prefixes that should be handled by Facelets
private String[] prefixesArray;
public static final String IS_BUILDING_METADATA =
FaceletViewHandlingStrategy.class.getName() + ".IS_BUILDING_METADATA";
private StateManagementStrategyImpl stateManagementStrategy;
private boolean partialStateSaving;
private Set<String> fullStateViewIds;
private boolean groovyAvailable;
// ------------------------------------------------------------ Constructors
public FaceletViewHandlingStrategy() {
initialize();
}
// ------------------------------------ Methods from ViewDeclarationLanguage
@Override
public StateManagementStrategy getStateManagementStrategy(FacesContext context, String viewId) {
// 'null' return here means we're defaulting to the 1.2 style state saving.
return (context.getAttributes().containsKey("partialStateSaving")
? stateManagementStrategy
: null);
}
@Override
public BeanInfo getComponentMetadata(FacesContext context, Resource ccResource) {
// PENDING this implementation is terribly wasteful.
// Must find a better way.
CompositeComponentBeanInfo result;
FaceletContext ctx =
(FaceletContext) context.getAttributes().get(FaceletContext.FACELET_CONTEXT_KEY);
FaceletFactory factory =
(FaceletFactory) RequestStateManager.get(context, RequestStateManager.FACELET_FACTORY);
VariableMapper orig = ctx.getVariableMapper();
UIComponent tmp = context.getApplication().createComponent("javax.faces.NamingContainer");
UIPanel facetComponent =
(UIPanel) context.getApplication().createComponent("javax.faces.Panel");
facetComponent.setRendererType("javax.faces.Group");
tmp.getFacets().put(UIComponent.COMPOSITE_FACET_NAME, facetComponent);
// We have to put the resource in here just so the classes that eventually
// get called by facelets have access to it.
tmp.getAttributes().put(Resource.COMPONENT_RESOURCE_KEY, ccResource);
Facelet f;
try {
f = factory.getFacelet(ccResource.getURL());
VariableMapper wrapper =
new VariableMapperWrapper(orig) {
@Override
public ValueExpression resolveVariable(String variable) {
return super.resolveVariable(variable);
}
};
ctx.setVariableMapper(wrapper);
context.getAttributes().put(IS_BUILDING_METADATA, Boolean.TRUE);
f.apply(context, facetComponent);
} catch (Exception e) {
if (e instanceof FacesException) {
throw (FacesException) e;
} else {
throw new FacesException(e);
}
} finally {
context.getAttributes().remove(IS_BUILDING_METADATA);
ctx.setVariableMapper(orig);
}
result = (CompositeComponentBeanInfo) tmp.getAttributes().get(UIComponent.BEANINFO_KEY);
return result;
}
@Override
public ViewMetadata getViewMetadata(FacesContext context, String viewId) {
return new ViewMetadataImpl(viewId);
}
/**
* @see
* javax.faces.view.ViewDeclarationLanguage#getScriptComponentResource(javax.faces.context.FacesContext,
* javax.faces.application.Resource)
*/
public Resource getScriptComponentResource(FacesContext context, Resource componentResource) {
if (!groovyAvailable) {
return null;
}
Resource result = null;
String resourceName = componentResource.getResourceName();
if (resourceName.endsWith(".xhtml")) {
resourceName = resourceName.substring(0, resourceName.length() - 6) + ".groovy";
ResourceHandler resourceHandler = context.getApplication().getResourceHandler();
result = resourceHandler.createResource(resourceName, componentResource.getLibraryName());
}
return result;
}
/**
* @see javax.faces.view.ViewDeclarationLanguage#renderView(javax.faces.context.FacesContext,
* javax.faces.component.UIViewRoot)
*/
public void renderView(FacesContext ctx, UIViewRoot viewToRender) throws IOException {
// suppress rendering if "rendered" property on the component is
// false
if (!viewToRender.isRendered()) {
return;
}
// log request
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("Rendering View: " + viewToRender.getViewId());
}
WriteBehindStateWriter stateWriter = null;
try {
// Only build the view if this view has not yet been built.
if (!Util.isViewPopulated(ctx, viewToRender)) {
this.buildView(ctx, viewToRender);
}
// setup writer and assign it to the ctx
ResponseWriter origWriter = ctx.getResponseWriter();
if (origWriter == null) {
origWriter = createResponseWriter(ctx);
}
stateWriter = new WriteBehindStateWriter(origWriter, ctx, responseBufferSize);
ResponseWriter writer = origWriter.cloneWithWriter(stateWriter);
ctx.setResponseWriter(writer);
// render the view to the response
writer.startDocument();
viewToRender.encodeAll(ctx);
writer.endDocument();
// finish writing
writer.close();
boolean writtenState = stateWriter.stateWritten();
// flush to origWriter
if (writtenState) {
stateWriter.flushToWriter();
}
} catch (FileNotFoundException fnfe) {
this.handleFaceletNotFound(ctx, viewToRender.getViewId(), fnfe.getMessage());
} catch (Exception e) {
this.handleRenderException(ctx, e);
} finally {
if (stateWriter != null) stateWriter.release();
}
}
/**
* If {@link UIDebug#debugRequest(javax.faces.context.FacesContext)}} is <code>true</code>, simply
* return a new UIViewRoot(), otherwise, call the default logic.
*
* @see {@link
* javax.faces.view.ViewDeclarationLanguage#restoreView(javax.faces.context.FacesContext,
* String)}
*/
@Override
public UIViewRoot restoreView(FacesContext ctx, String viewId) {
updateStateSavingType(ctx, viewId);
if (UIDebug.debugRequest(ctx)) {
ctx.getApplication().createComponent(UIViewRoot.COMPONENT_TYPE);
}
return super.restoreView(ctx, viewId);
}
/**
* @see javax.faces.view.ViewDeclarationLanguage#createView(javax.faces.context.FacesContext,
* String)
* @return
*/
@Override
public UIViewRoot createView(FacesContext ctx, String viewId) {
if (UIDebug.debugRequest(ctx)) {
UIViewRoot root =
(UIViewRoot) ctx.getApplication().createComponent(UIViewRoot.COMPONENT_TYPE);
root.setViewId(viewId);
return root;
}
return super.createView(ctx, viewId);
}
// --------------------------------------- Methods from ViewHandlingStrategy
/**
* @param viewId the view ID to check
* @return <code>true</code> if assuming a default configuration and the view ID's extension is
* <code>.xhtml</code> Otherwise try to match the view ID based on the configured extendsion
* and prefixes.
* @see com.sun.faces.config.WebConfiguration.WebContextInitParameter#FaceletsViewMappings
*/
@Override
public boolean handlesViewId(String viewId) {
if (viewId != null) {
// If there's no extensions array or prefixes array, then
// assume defaults. .xhtml extension is handled by
// the FaceletViewHandler and .jsp will be handled by
// the JSP view handler
if ((extensionsArray == null) && (prefixesArray == null)) {
return (viewId.endsWith(ViewHandler.DEFAULT_FACELETS_SUFFIX));
}
if (extensionsArray != null) {
for (int i = 0; i < extensionsArray.length; i++) {
String extension = extensionsArray[i];
if (viewId.endsWith(extension)) {
return true;
}
}
}
if (prefixesArray != null) {
for (int i = 0; i < prefixesArray.length; i++) {
String prefix = prefixesArray[i];
if (viewId.startsWith(prefix)) {
return true;
}
}
}
}
return false;
}
/**
* Build the view.
*
* @param ctx the {@link FacesContext} for the current request
* @param view the {@link UIViewRoot} to populate based of the Facelet template
* @throws IOException if an error occurs building the view.
*/
@Override
public void buildView(FacesContext ctx, UIViewRoot view) throws IOException {
if (Util.isViewPopulated(ctx, view)) {
return;
}
updateStateSavingType(ctx, view.getViewId());
view.setViewId(view.getViewId());
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("Building View: " + view.getViewId());
}
if (faceletFactory == null) {
ApplicationAssociate associate = ApplicationAssociate.getInstance(ctx.getExternalContext());
faceletFactory = associate.getFaceletFactory();
assert (faceletFactory != null);
}
RequestStateManager.set(ctx, RequestStateManager.FACELET_FACTORY, faceletFactory);
Facelet f = faceletFactory.getFacelet(view.getViewId());
// populate UIViewRoot
f.apply(ctx, view);
doPostBuildActions(view);
Util.setViewPopulated(ctx, view);
}
// ------------------------------------------------------- Protected Methods
/** Initialize the core Facelets runtime. */
protected void initialize() {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("Initializing FaceletViewHandlingStrategy");
}
this.initializeMappings();
WebConfiguration config = WebConfiguration.getInstance();
partialStateSaving = config.isOptionEnabled(PartialStateSaving);
if (partialStateSaving) {
String[] viewIds = config.getOptionValue(FullStateSavingViewIds, ",");
fullStateViewIds = new HashSet<String>(viewIds.length, 1.0f);
fullStateViewIds.addAll(Arrays.asList(viewIds));
this.stateManagementStrategy = new StateManagementStrategyImpl(this);
}
groovyAvailable = GroovyHelper.isGroovyAvailable(FacesContext.getCurrentInstance());
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("Initialization Successful");
}
}
/** Initialize mappings, during the first request. */
protected void initializeMappings() {
String viewMappings = webConfig.getOptionValue(WebContextInitParameter.FaceletsViewMappings);
if ((viewMappings != null) && (viewMappings.length() > 0)) {
String[] mappingsArray = Util.split(viewMappings, ";");
List<String> extensionsList = new ArrayList<String>(mappingsArray.length);
List<String> prefixesList = new ArrayList<String>(mappingsArray.length);
for (int i = 0; i < mappingsArray.length; i++) {
String mapping = mappingsArray[i].trim();
int mappingLength = mapping.length();
if (mappingLength <= 1) {
continue;
}
if (mapping.charAt(0) == '*') {
extensionsList.add(mapping.substring(1));
} else if (mapping.charAt(mappingLength - 1) == '*') {
prefixesList.add(mapping.substring(0, mappingLength - 1));
}
}
extensionsArray = new String[extensionsList.size()];
extensionsList.toArray(extensionsArray);
prefixesArray = new String[prefixesList.size()];
prefixesList.toArray(prefixesArray);
}
}
/** @return a new Compiler for Facelet processing. */
protected Compiler createCompiler() {
return new SAXCompiler();
}
/**
* @param context the {@link FacesContext} for the current request
* @return a {@link ResponseWriter} for processing the request
* @throws IOException if the writer cannot be created
*/
protected ResponseWriter createResponseWriter(FacesContext context) throws IOException {
ExternalContext extContext = context.getExternalContext();
RenderKit renderKit = context.getRenderKit();
// Avoid a cryptic NullPointerException when the renderkit ID
// is incorrectly set
if (renderKit == null) {
String id = context.getViewRoot().getRenderKitId();
throw new IllegalStateException("No render kit was available for id \"" + id + "\"");
}
if (responseBufferSizeSet) {
// set the buffer for content
extContext.setResponseBufferSize(responseBufferSize);
}
// get our content type
String contentType = (String) extContext.getRequestMap().get("facelets.ContentType");
// get the encoding
String encoding = (String) extContext.getRequestMap().get("facelets.Encoding");
// Create a dummy ResponseWriter with a bogus writer,
// so we can figure out what content type the ReponseWriter
// is really going to ask for
ResponseWriter writer =
renderKit.createResponseWriter(NullWriter.Instance, contentType, encoding);
contentType = getResponseContentType(context, writer.getContentType());
encoding = getResponseEncoding(context, writer.getCharacterEncoding());
// apply them to the response
extContext.setResponseContentType(contentType);
extContext.setResponseCharacterEncoding(encoding);
// Now, clone with the real writer
writer = writer.cloneWithWriter(extContext.getResponseOutputWriter());
return writer;
}
/**
* Handles the case where rendering throws an Exception.
*
* @param context the {@link FacesContext} for the current request
* @param e the caught Exception
* @throws IOException if the custom debug content cannot be written
*/
protected void handleRenderException(FacesContext context, Exception e) throws IOException {
// always log
if (LOGGER.isLoggable(Level.SEVERE)) {
UIViewRoot root = context.getViewRoot();
StringBuffer sb = new StringBuffer(64);
sb.append("Error Rendering View");
if (root != null) {
sb.append('[');
sb.append(root.getViewId());
sb.append(']');
}
LOGGER.log(Level.SEVERE, sb.toString(), e);
}
if (e instanceof RuntimeException) {
throw (RuntimeException) e;
} else if (e instanceof IOException) {
throw (IOException) e;
} else {
throw new FacesException(e.getMessage(), e);
}
}
/**
* Handles the case where a Facelet cannot be found.
*
* @param context the {@link FacesContext} for the current request
* @param viewId the view ID that was to be mapped to a Facelet
* @param message optional message to include in the 404
* @throws IOException if an error occurs sending the 404 to the client
*/
protected void handleFaceletNotFound(FacesContext context, String viewId, String message)
throws IOException {
context
.getExternalContext()
.responseSendError(
HttpServletResponse.SC_NOT_FOUND,
((message != null) ? (viewId + ": " + message) : viewId));
context.responseComplete();
}
/**
* @param context the {@link FacesContext} for the current request
* @param orig the original encoding
* @return the encoding to be used for this response
*/
protected String getResponseEncoding(FacesContext context, String orig) {
String encoding = orig;
// see if we need to override the encoding
Map<Object, Object> ctxAttributes = context.getAttributes();
Map<String, Object> sessionMap = context.getExternalContext().getSessionMap();
// 1. check the request attribute
if (ctxAttributes.containsKey("facelets.Encoding")) {
encoding = (String) ctxAttributes.get("facelets.Encoding");
if (LOGGER.isLoggable(Level.FINEST)) {
LOGGER.log(Level.FINEST, "Facelet specified alternate encoding {0}", encoding);
}
sessionMap.put(ViewHandler.CHARACTER_ENCODING_KEY, encoding);
}
// 2. get it from request
if (encoding == null) {
encoding = context.getExternalContext().getRequestCharacterEncoding();
}
// 3. get it from the session
if (encoding == null) {
encoding = (String) sessionMap.get(ViewHandler.CHARACTER_ENCODING_KEY);
if (LOGGER.isLoggable(Level.FINEST)) {
LOGGER.log(Level.FINEST, "Session specified alternate encoding {0}", encoding);
}
}
// 4. default it
if (encoding == null) {
encoding = "UTF-8";
if (LOGGER.isLoggable(Level.FINEST)) {
LOGGER.finest("ResponseWriter created had a null CharacterEncoding, defaulting to UTF-8");
}
}
return encoding;
}
/**
* @param context the {@link FacesContext} for the current request
* @param orig the original contentType
* @return the content type to be used for this response
*/
protected String getResponseContentType(FacesContext context, String orig) {
String contentType = orig;
// see if we need to override the contentType
Map<Object, Object> m = context.getAttributes();
if (m.containsKey("facelets.ContentType")) {
contentType = (String) m.get("facelets.ContentType");
if (LOGGER.isLoggable(Level.FINEST)) {
LOGGER.finest("Facelet specified alternate contentType '" + contentType + "'");
}
}
// safety check
if (contentType == null) {
contentType = "text/html";
if (LOGGER.isLoggable(Level.FINEST)) {
LOGGER.finest("ResponseWriter created had a null ContentType, defaulting to text/html");
}
}
return contentType;
}
private void updateStateSavingType(FacesContext ctx, String viewId) {
if (!ctx.getAttributes().containsKey("partialStateSaving")) {
ctx.getAttributes().put("partialStateSaving", usePartialSaving(viewId));
}
}
private boolean usePartialSaving(String viewId) {
return (partialStateSaving && !fullStateViewIds.contains(viewId));
}
private void doPostBuildActions(UIViewRoot root) {
if (usePartialSaving(root.getViewId())) {
stateManagementStrategy.notifyTrackChanges(root);
}
}
// ---------------------------------------------------------- Nested Classes
/** Simple no-op writer. */
protected static final class NullWriter extends Writer {
static final NullWriter Instance = new NullWriter();
public void write(char[] buffer) {}
public void write(char[] buffer, int off, int len) {}
public void write(String str) {}
public void write(int c) {}
public void write(String str, int off, int len) {}
public void close() {}
public void flush() {}
} // END NullWriter
}
public class GroovyScriptManager implements ScriptManager {
private static final Logger LOGGER = FacesLogger.APPLICATION.getLogger();
private static final String SCRIPT_PATH = "/WEB-INF/groovy/";
private static final String SUFFIX = ".groovy";
private ServletContext servletContext;
// Borrowed from AnnotationScanner. Perhaps this should be made public somewhere
public static final Set<String> FACES_ANNOTATIONS;
static {
HashSet<String> annotations = new HashSet<>(15, 1.0f);
Collections.addAll(
annotations,
"javax.faces.component.FacesComponent",
"javax.faces.component.*",
"javax.faces.convert.FacesConverter",
"javax.faces.convert.*",
"javax.faces.validator.FacesValidator",
"javax.faces.validator.*",
"javax.faces.render.FacesRenderer",
"javax.faces.render.*",
"javax.faces.bean.ManagedBean",
"javax.faces.bean.*",
"javax.faces.event.NamedEvent",
"javax.faces.event.*",
"javax.faces.component.behavior.FacesBehavior",
"javax.faces.component.behavior.*",
"javax.faces.render.FacesBehaviorRenderer");
FACES_ANNOTATIONS = Collections.unmodifiableSet(annotations);
}
public GroovyScriptManager(ServletContext servletContext) {
this.servletContext = servletContext;
}
public Set<String> getScripts() {
Set<String> scripts = new HashSet<>();
processWebInfGroovy(servletContext, servletContext.getResourcePaths(SCRIPT_PATH), scripts);
return scripts;
}
private void processWebInfGroovy(ServletContext sc, Set<String> paths, Set<String> classList) {
if (paths != null && !paths.isEmpty()) {
for (String pathElement : paths) {
if (pathElement.endsWith("/")) {
processWebInfGroovy(sc, sc.getResourcePaths(pathElement), classList);
} else {
if (pathElement.endsWith(SUFFIX)) {
String cname = convertToClassName(SCRIPT_PATH, pathElement);
if (containsAnnotation(sc, pathElement)) {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, "[WEB-INF/groovy] Found annotated Class: {0}", cname);
}
classList.add(cname);
}
}
}
}
}
}
private boolean containsAnnotation(ServletContext sc, String pathElement) {
boolean containsAnnotation = false;
URL url;
try {
url = sc.getResource(pathElement);
} catch (MalformedURLException ex) {
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(Level.SEVERE, null, ex);
}
return false;
}
try (BufferedReader in =
new BufferedReader(new InputStreamReader(url.openStream(), RIConstants.CHAR_ENCODING))) {
String line = in.readLine();
while ((line != null) && (!containsAnnotation)) {
line = line.trim();
if (line.length() != 0) {
for (String pattern : FACES_ANNOTATIONS) {
if (line.contains(pattern)) {
containsAnnotation = true;
break;
}
}
}
line = in.readLine();
}
} catch (Exception ioe) {
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(Level.SEVERE, null, ioe);
}
}
return containsAnnotation;
}
/**
* Utility method for converting paths to fully qualified class names.
*
* @param prefix the prefix that should be stripped from the class name before converting it
* @param pathEntry a path to a class file
* @return a fully qualified class name using dot notation
*/
private String convertToClassName(String prefix, String pathEntry) {
String className = pathEntry;
if (prefix != null) {
// remove the prefix
className = className.substring(prefix.length());
}
// remove the .class suffix
className = className.substring(0, (className.length() - 7));
return className.replace('/', '.');
}
}
/**
* This <code>StateHelper</code> provides the functionality associated with client-side state
* saving.
*/
public class ClientSideStateHelper extends StateHelper {
private static final Logger LOGGER = FacesLogger.APPLICATION.getLogger();
/**
* Enabled encryption of view state. Encryption is disabled by default.
*
* @see {@link
* com.sun.faces.config.WebConfiguration.WebEnvironmentEntry#ClientStateSavingPassword}
*/
private ByteArrayGuard guard;
/**
* Flag indicating whether or not client view state will be manipulated for and checked against a
* configured timeout value.
*
* <p>This flag is configured via the <code>WebContextInitParameter.ClientStateTimeout</code>
* configuration option of <code>WebConfiguration</code> and is disabled by default.
*
* @see {@link com.sun.faces.config.WebConfiguration.WebContextInitParameter#ClientStateTimeout}
*/
private boolean stateTimeoutEnabled;
/**
* If <code>stateTimeoutEnabled</code> is <code>true</code> this value will represent the time in
* seconds that a particular client view state is valid for.
*
* @see {@link com.sun.faces.config.WebConfiguration.WebContextInitParameter#ClientStateTimeout}
*/
private long stateTimeout;
/**
* Client state is generally large, so this allows some tuning to control the buffer that's used
* to write the client state.
*
* <p>The value specified must be divisable by two as the buffer is split between character and
* bytes (due to how client state is written). By default, the buffer size is 8192 (per request).
*
* @see {@link
* com.sun.faces.config.WebConfiguration.WebContextInitParameter#ClientStateWriteBufferSize}
*/
private int csBuffSize;
// ------------------------------------------------------------ Constructors
/** Construct a new <code>ClientSideStateHelper</code> instance. */
public ClientSideStateHelper() {
init();
}
// ------------------------------------------------ Methods from StateHelper
/**
* Writes the view state as a String generated by Base64 encoding the Java Serialziation
* representation of the provided <code>state</code>
*
* <p>If <code>stateCapture</code> is <code>null</code>, the Base64 encoded state will be written
* to the client as a hidden field using the <code>ResponseWriter</code> from the provided <code>
* FacesContext</code>.
*
* <p>If <code>stateCapture</code> is not <code>null</code>, the Base64 encoded state will be
* appended to the provided <code>StringBuilder</code> without any markup included or any content
* written to the client.
*
* @see {@link com.sun.faces.renderkit.StateHelper#writeState(javax.faces.context.FacesContext,
* Object, StringBuilder)}
*/
public void writeState(FacesContext ctx, Object state, StringBuilder stateCapture)
throws IOException {
if (stateCapture != null) {
doWriteState(state, new StringBuilderWriter(stateCapture));
} else {
ResponseWriter writer = ctx.getResponseWriter();
writer.write(stateFieldStart);
String viewStateId = Util.getViewStateId(ctx);
writer.write(viewStateId);
writer.write(fieldMiddle);
doWriteState(state, writer);
writer.write(fieldEnd);
writeWindowIdField(ctx, writer);
writeRenderKitIdField(ctx, writer);
}
}
/**
* Inspects the incoming request parameters for the standardized state parameter name. In this
* case, the parameter value will be a Base64 encoded string previously encoded by {@link
* com.sun.faces.renderkit.ServerSideStateHelper#writeState(javax.faces.context.FacesContext,
* Object, StringBuilder)}.
*
* <p>The string will be Base64-decoded and the state reconstructed using standard Java
* serialization.
*
* @see {@link com.sun.faces.renderkit.StateHelper#getState(javax.faces.context.FacesContext,
* String)}
*/
public Object getState(FacesContext ctx, String viewId) throws IOException {
String stateString = getStateParamValue(ctx);
if (stateString == null) {
return null;
}
return doGetState(stateString);
}
// ------------------------------------------------------- Protected Methods
/**
* Rebuilds the view state from the Base64 included String included with the request.
*
* @param stateString the Base64 encoded view state
* @return the view state reconstructed from <code>stateString</code>
*/
protected Object doGetState(String stateString) {
ObjectInputStream ois = null;
InputStream bis = new Base64InputStream(stateString);
try {
if (guard != null) {
byte[] bytes = stateString.getBytes(RIConstants.CHAR_ENCODING);
int numRead = bis.read(bytes, 0, bytes.length);
byte[] decodedBytes = new byte[numRead];
bis.reset();
bis.read(decodedBytes, 0, decodedBytes.length);
bytes = guard.decrypt(decodedBytes);
if (bytes == null) return null;
bis = new ByteArrayInputStream(bytes);
}
if (compressViewState) {
bis = new GZIPInputStream(bis);
}
ois = serialProvider.createObjectInputStream(bis);
long stateTime = 0;
if (stateTimeoutEnabled) {
try {
stateTime = ois.readLong();
} catch (IOException ioe) {
// we've caught an exception trying to read the time
// marker. This most likely means a view that has been
// around before upgrading to the release that included
// this feature. So, no marker, return null now to
// cause a ViewExpiredException
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine(
"Client state timeout is enabled, but unable to find the "
+ "time marker in the serialized state. Assuming state "
+ "to be old and returning null.");
}
return null;
}
}
Object structure = ois.readObject();
Object state = ois.readObject();
if (stateTime != 0 && hasStateExpired(stateTime)) {
// return null if state has expired. This should cause
// a ViewExpiredException to be thrown
return null;
}
return new Object[] {structure, state};
} catch (java.io.OptionalDataException ode) {
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(Level.SEVERE, ode.getMessage(), ode);
}
throw new FacesException(ode);
} catch (ClassNotFoundException cnfe) {
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(Level.SEVERE, cnfe.getMessage(), cnfe);
}
throw new FacesException(cnfe);
} catch (IOException iox) {
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(Level.SEVERE, iox.getMessage(), iox);
}
throw new FacesException(iox);
} finally {
if (ois != null) {
try {
ois.close();
} catch (IOException ioe) {
// ignore
}
}
}
}
/**
* Serializes and Base64 encodes the provided <code>state</code> to the provided <code>writer
* </code>/
*
* @param state view state
* @param writer the <code>Writer</code> to write the content to
* @throws IOException if an error occurs writing the state to the client
*/
protected void doWriteState(Object state, Writer writer) throws IOException {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
OutputStream base = null;
if (compressViewState) {
base = new GZIPOutputStream(baos, csBuffSize);
} else {
base = baos;
}
ObjectOutputStream oos = null;
try {
oos = serialProvider.createObjectOutputStream(new BufferedOutputStream(base));
if (stateTimeoutEnabled) {
oos.writeLong(System.currentTimeMillis());
}
Object[] stateToWrite = (Object[]) state;
//noinspection NonSerializableObjectPassedToObjectStream
oos.writeObject(stateToWrite[0]);
//noinspection NonSerializableObjectPassedToObjectStream
oos.writeObject(stateToWrite[1]);
oos.flush();
oos.close();
oos = null;
// get bytes for encrypting
byte[] bytes = baos.toByteArray();
if (guard != null) {
// this will MAC
bytes = guard.encrypt(bytes);
}
// Base 64 encode
Base64OutputStreamWriter bos = new Base64OutputStreamWriter(bytes.length, writer);
bos.write(bytes, 0, bytes.length);
bos.finish();
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(
Level.FINE,
"Client State: total number of characters written: {0}",
bos.getTotalCharsWritten());
}
} finally {
if (oos != null) {
try {
oos.close();
} catch (IOException ioe) {
// ignore
}
}
}
}
/**
* If the {@link com.sun.faces.config.WebConfiguration.WebContextInitParameter#ClientStateTimeout}
* init parameter is set, calculate the elapsed time between the time the client state was written
* and the time this method was invoked during restore. If the client state has expired, return
* <code>true</code>. If the client state hasn't expired, or the init parameter wasn't set, return
* <code>false</code>.
*
* @param stateTime the time in milliseconds that the state was written to the client
* @return <code>false</code> if the client state hasn't timed out, otherwise return <code>true
* </code>
*/
protected boolean hasStateExpired(long stateTime) {
if (stateTimeoutEnabled) {
long elapsed = (System.currentTimeMillis() - stateTime) / 60000;
return (elapsed > stateTimeout);
} else {
return false;
}
}
/** Initialze the various configuration options for client-side sate saving. */
protected void init() {
if (!webConfig.isSet(BooleanWebContextInitParameter.DisableClientStateEncryption)) {
guard = new ByteArrayGuard();
} else {
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, "jsf.config.webconfig.enventry.clientencrypt");
}
}
stateTimeoutEnabled = webConfig.isSet(ClientStateTimeout);
if (stateTimeoutEnabled) {
String timeout = webConfig.getOptionValue(ClientStateTimeout);
try {
stateTimeout = Long.parseLong(timeout);
} catch (NumberFormatException nfe) {
stateTimeout = Long.parseLong(ClientStateTimeout.getDefaultValue());
}
}
String size = webConfig.getOptionValue(ClientStateWriteBufferSize);
String defaultSize = ClientStateWriteBufferSize.getDefaultValue();
try {
csBuffSize = Integer.parseInt(size);
if (csBuffSize % 2 != 0) {
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.log(
Level.WARNING,
"jsf.renderkit.resstatemgr.clientbuf_div_two",
new Object[] {ClientStateWriteBufferSize.getQualifiedName(), size, defaultSize});
}
csBuffSize = Integer.parseInt(defaultSize);
} else {
csBuffSize /= 2;
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.fine("Using client state buffer size of " + csBuffSize);
}
}
} catch (NumberFormatException nfe) {
if (LOGGER.isLoggable(Level.WARNING)) {
LOGGER.log(
Level.WARNING,
"jsf.renderkit.resstatemgr.clientbuf_not_integer",
new Object[] {ClientStateWriteBufferSize.getQualifiedName(), size, defaultSize});
}
csBuffSize = Integer.parseInt(defaultSize);
}
}
// ----------------------------------------------------------- Inner Classes
/**
* A simple <code>Writer</code> implementation to encapsulate a <code>StringBuilder</code>
* instance.
*/
protected static final class StringBuilderWriter extends Writer {
private StringBuilder sb;
// -------------------------------------------------------- Constructors
protected StringBuilderWriter(StringBuilder sb) {
this.sb = sb;
}
// ------------------------------------------------- Methods from Writer
@Override
public void write(int c) throws IOException {
sb.append((char) c);
}
@Override
public void write(char cbuf[]) throws IOException {
sb.append(cbuf);
}
@Override
public void write(String str) throws IOException {
sb.append(str);
}
@Override
public void write(String str, int off, int len) throws IOException {
sb.append(str.toCharArray(), off, len);
}
@Override
public Writer append(CharSequence csq) throws IOException {
sb.append(csq);
return this;
}
@Override
public Writer append(CharSequence csq, int start, int end) throws IOException {
sb.append(csq, start, end);
return this;
}
@Override
public Writer append(char c) throws IOException {
sb.append(c);
return this;
}
public void write(char cbuf[], int off, int len) throws IOException {
sb.append(cbuf, off, len);
}
public void flush() throws IOException {
// no-op
}
public void close() throws IOException {
// no-op
}
} // END StringBuilderWriter
}
/** Helper class to interface with the Groovy runtime. */
public class GroovyHelperImpl extends GroovyHelper {
private static final Logger LOGGER = FacesLogger.APPLICATION.getLogger();
private static final String SCRIPT_PATH = "/WEB-INF/groovy/";
private MojarraGroovyClassLoader loader;
// ------------------------------------------------------------ Constructors
GroovyHelperImpl() throws Exception {
FacesContext facesContext = FacesContext.getCurrentInstance();
ExternalContext extContext = facesContext.getExternalContext();
ClassLoader curLoader = Thread.currentThread().getContextClassLoader();
URL combinedRoots[] = getResourceRoots(extContext, curLoader);
if (0 < combinedRoots.length) {
GroovyScriptEngine engine = new GroovyScriptEngine(combinedRoots, curLoader);
// Class<?> c = Util.loadClass("groovy.util.GroovyScriptEngine",
// GroovyHelperFactory.class);
// Constructor<?> ctor = c.getConstructor(URL[].class, ClassLoader.class);
// GroovyScriptEngine engine = (GroovyScriptEngine)ctor.newInstance(combinedRoots,
// curLoader);
loader = new MojarraGroovyClassLoader(engine);
if (LOGGER.isLoggable(Level.INFO)) {
LOGGER.log(Level.INFO, "Groovy support enabled.");
}
extContext.getApplicationMap().put("com.sun.faces.groovyhelper", this);
((ServletContext) (extContext.getContext())).setAttribute("com.sun.faces.groovyhelper", this);
}
}
private URL[] getResourceRoots(ExternalContext extContext, ClassLoader curLoader)
throws IOException {
URL[] combinedRoots;
Enumeration<URL> classpathResourceEnumeration = curLoader.getResources("META-INF/resources/");
List<URL> classpathResourceList = new ArrayList<URL>();
while (classpathResourceEnumeration.hasMoreElements()) {
classpathResourceList.add(classpathResourceEnumeration.nextElement());
}
// only called during init - safe to cast and save.
URL u = extContext.getResource(SCRIPT_PATH);
URL webappRoots[] = getWebappResourceRoots(extContext),
classpathRoots[] = new URL[classpathResourceList.size()];
classpathResourceList.toArray(classpathRoots);
if (null != u || 0 < webappRoots.length || 0 < classpathRoots.length) {
combinedRoots = new URL[webappRoots.length + classpathRoots.length + (null != u ? 1 : 0)];
System.arraycopy(webappRoots, 0, combinedRoots, 0, webappRoots.length);
System.arraycopy(classpathRoots, 0, combinedRoots, webappRoots.length, classpathRoots.length);
if (null != u) {
combinedRoots[webappRoots.length + classpathRoots.length] = u;
}
} else {
combinedRoots = new URL[0];
}
return combinedRoots;
}
private URL[] getWebappResourceRoots(ExternalContext extContext) {
URL[] result = null;
int size = 0, i = 0;
Set<String> resourceRoots = extContext.getResourcePaths("/resources/");
if (null != resourceRoots && !resourceRoots.isEmpty()) {
// Determine the size of script roots that end with "/"
for (String cur : resourceRoots) {
if (cur.endsWith("/")) {
size++;
}
}
result = new URL[size];
for (String cur : resourceRoots) {
if (cur.endsWith("/")) {
try {
result[i++] = extContext.getResource(cur);
} catch (MalformedURLException ex) {
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(Level.SEVERE, null, ex);
}
}
}
}
}
if (null == result) {
result = new URL[0];
}
return result;
}
public void addURL(URL toAdd) {
loader.getGroovyScriptEngine().getGroovyClassLoader().addURL(toAdd);
}
// ---------------------------------------------------------- Public Methods
public Class<?> loadScript(String name) {
try {
String script = name;
if (script.endsWith(".groovy")) {
script = script.substring(0, script.indexOf(".groovy"));
}
// return engine.loadScriptByName(script);
return Util.loadClass(script, this);
} catch (Exception e) {
throw new FacesException(e);
}
}
public void setClassLoader() {
if (loader != null) {
Thread.currentThread().setContextClassLoader(loader);
}
}
// ----------------------------------------------------------- Inner Classes
public static final class MojarraGroovyClassLoader extends URLClassLoader {
private GroovyScriptEngine gse;
public MojarraGroovyClassLoader(GroovyScriptEngine gse) {
super(new URL[0], gse.getGroovyClassLoader());
gse.getGroovyClassLoader().setShouldRecompile(Boolean.TRUE);
this.gse = gse;
}
public GroovyScriptEngine getGroovyScriptEngine() {
return gse;
}
@Override
public Class<?> loadClass(String name) throws ClassNotFoundException {
if (name == null) {
throw new NullPointerException();
}
Class<?> c;
try {
c = gse.loadScriptByName(name);
} catch (Exception e) {
try {
c = gse.getGroovyClassLoader().loadClass(name);
} catch (ClassNotFoundException cnfe) {
throw new ClassNotFoundException(name, cnfe);
}
}
if (c == null) {
throw new ClassNotFoundException(name);
}
return c;
}
}
}
/**
* Break out the things that are associated with the Application, but need to be present even when
* the user has replaced the Application instance.
*
* <p>
*
* <p>For example: the user replaces ApplicationFactory, and wants to intercept calls to
* createValueExpression() and createMethodExpression() for certain kinds of expressions, but allow
* the existing application to handle the rest.
*/
public class ApplicationAssociate {
private static final Logger LOGGER = FacesLogger.APPLICATION.getLogger();
private ApplicationImpl app = null;
/**
* Overall Map containing <code>from-view-id</code> key and <code>ArrayList</code> of <code>
* ConfigNavigationCase</code> objects for that key; The <code>from-view-id</code> strings in this
* map will be stored as specified in the configuration file - some of them will have a trailing
* asterisk "*" signifying wild card, and some may be specified as an asterisk "*".
*/
private Map<String, List<ConfigNavigationCase>> caseListMap = null;
/**
* The List that contains all view identifier strings ending in an asterisk "*". The entries are
* stored without the trailing asterisk.
*/
private TreeSet<String> wildcardMatchList = null;
// Flag indicating that a response has been rendered.
private boolean responseRendered = false;
private static final String ASSOCIATE_KEY = RIConstants.FACES_PREFIX + "ApplicationAssociate";
private static ThreadLocal<ApplicationAssociate> instance =
new ThreadLocal<ApplicationAssociate>() {
protected ApplicationAssociate initialValue() {
return (null);
}
};
private List<ELResolver> elResolversFromFacesConfig = null;
@SuppressWarnings("deprecation")
private VariableResolver legacyVRChainHead = null;
@SuppressWarnings("deprecation")
private PropertyResolver legacyPRChainHead = null;
private ExpressionFactory expressionFactory = null;
@SuppressWarnings("deprecation")
private PropertyResolver legacyPropertyResolver = null;
@SuppressWarnings("deprecation")
private VariableResolver legacyVariableResolver = null;
private CompositeELResolver facesELResolverForJsp = null;
private InjectionProvider injectionProvider;
private ResourceCache resourceCache;
private String contextName;
private boolean requestServiced;
private BeanManager beanManager;
private GroovyHelper groovyHelper;
private AnnotationManager annotationManager;
private boolean devModeEnabled;
private Compiler compiler;
private FaceletFactory faceletFactory;
private ResourceManager resourceManager;
private PropertyEditorHelper propertyEditorHelper;
public ApplicationAssociate(ApplicationImpl appImpl) {
app = appImpl;
propertyEditorHelper = new PropertyEditorHelper(appImpl);
FacesContext ctx = FacesContext.getCurrentInstance();
if (ctx == null) {
throw new IllegalStateException(
MessageUtils.getExceptionMessageString(
MessageUtils.APPLICATION_ASSOCIATE_CTOR_WRONG_CALLSTACK_ID));
}
ExternalContext externalContext = ctx.getExternalContext();
if (null != externalContext.getApplicationMap().get(ASSOCIATE_KEY)) {
throw new IllegalStateException(
MessageUtils.getExceptionMessageString(MessageUtils.APPLICATION_ASSOCIATE_EXISTS_ID));
}
externalContext.getApplicationMap().put(ASSOCIATE_KEY, this);
//noinspection CollectionWithoutInitialCapacity
caseListMap = new HashMap<String, List<ConfigNavigationCase>>();
wildcardMatchList = new TreeSet<String>(new SortIt());
injectionProvider = InjectionProviderFactory.createInstance(externalContext);
WebConfiguration webConfig = WebConfiguration.getInstance(externalContext);
beanManager =
new BeanManager(
injectionProvider,
webConfig.isOptionEnabled(BooleanWebContextInitParameter.EnableLazyBeanValidation));
annotationManager = new AnnotationManager();
groovyHelper = GroovyHelper.getCurrentInstance();
// initialize Facelets
if (!webConfig.isOptionEnabled(BooleanWebContextInitParameter.DisableFaceletJSFViewHandler)) {
compiler = createCompiler(webConfig);
faceletFactory = createFaceletFactory(compiler, webConfig);
devModeEnabled = (appImpl.getProjectStage() == ProjectStage.Development);
}
if (devModeEnabled) {
resourceCache = new ResourceCache();
}
resourceManager = new ResourceManager(resourceCache);
}
public static ApplicationAssociate getInstance(ExternalContext externalContext) {
if (externalContext == null) {
return null;
}
Map applicationMap = externalContext.getApplicationMap();
return ((ApplicationAssociate) applicationMap.get(ASSOCIATE_KEY));
}
public static ApplicationAssociate getInstance(ServletContext context) {
if (context == null) {
return null;
}
return (ApplicationAssociate) context.getAttribute(ASSOCIATE_KEY);
}
public static void setCurrentInstance(ApplicationAssociate associate) {
if (associate == null) {
instance.remove();
} else {
instance.set(associate);
}
}
public static ApplicationAssociate getCurrentInstance() {
ApplicationAssociate associate = instance.get();
if (associate == null) {
// Fallback to ExternalContext lookup
FacesContext fc = FacesContext.getCurrentInstance();
if (fc != null) {
ExternalContext extContext = fc.getExternalContext();
if (extContext != null) {
return ApplicationAssociate.getInstance(extContext);
}
}
}
return associate;
}
public ResourceManager getResourceManager() {
return resourceManager;
}
public void setResourceManager(ResourceManager resourceManager) {
this.resourceManager = resourceManager;
}
public ResourceCache getResourceCache() {
return resourceCache;
}
public AnnotationManager getAnnotationManager() {
return annotationManager;
}
public Compiler getCompiler() {
return compiler;
}
public FaceletFactory getFaceletFactory() {
return faceletFactory;
}
public static void clearInstance(ExternalContext externalContext) {
Map applicationMap = externalContext.getApplicationMap();
ApplicationAssociate me = (ApplicationAssociate) applicationMap.get(ASSOCIATE_KEY);
if (null != me) {
if (null != me.resourceBundles) {
me.resourceBundles.clear();
}
}
applicationMap.remove(ASSOCIATE_KEY);
}
public BeanManager getBeanManager() {
return beanManager;
}
public GroovyHelper getGroovyHelper() {
return groovyHelper;
}
public boolean isDevModeEnabled() {
return devModeEnabled;
}
/**
* Obtain the PropertyEditorHelper instance for this app.
*
* @return
*/
public PropertyEditorHelper getPropertyEditorHelper() {
return propertyEditorHelper;
}
/**
* This method is called by <code>ConfigureListener</code> and will contain any <code>
* VariableResolvers</code> defined within faces-config configuration files.
*
* @param resolver VariableResolver
*/
@SuppressWarnings("deprecation")
public void setLegacyVRChainHead(VariableResolver resolver) {
this.legacyVRChainHead = resolver;
}
@SuppressWarnings("deprecation")
public VariableResolver getLegacyVRChainHead() {
return legacyVRChainHead;
}
/**
* This method is called by <code>ConfigureListener</code> and will contain any <code>
* PropertyResolvers</code> defined within faces-config configuration files.
*
* @param resolver PropertyResolver
*/
@SuppressWarnings("deprecation")
public void setLegacyPRChainHead(PropertyResolver resolver) {
this.legacyPRChainHead = resolver;
}
@SuppressWarnings("deprecation")
public PropertyResolver getLegacyPRChainHead() {
return legacyPRChainHead;
}
public CompositeELResolver getFacesELResolverForJsp() {
return facesELResolverForJsp;
}
public void setFacesELResolverForJsp(CompositeELResolver celr) {
facesELResolverForJsp = celr;
}
public void setELResolversFromFacesConfig(List<ELResolver> resolvers) {
this.elResolversFromFacesConfig = resolvers;
}
public List<ELResolver> getELResolversFromFacesConfig() {
return elResolversFromFacesConfig;
}
public void setExpressionFactory(ExpressionFactory expressionFactory) {
this.expressionFactory = expressionFactory;
}
public ExpressionFactory getExpressionFactory() {
return this.expressionFactory;
}
public List<ELResolver> getApplicationELResolvers() {
return app.getApplicationELResolvers();
}
public InjectionProvider getInjectionProvider() {
return injectionProvider;
}
public void setContextName(String contextName) {
this.contextName = contextName;
}
public String getContextName() {
return contextName;
}
/**
* Maintains the PropertyResolver called through Application.setPropertyResolver()
*
* @param resolver PropertyResolver
*/
@SuppressWarnings("deprecation")
public void setLegacyPropertyResolver(PropertyResolver resolver) {
this.legacyPropertyResolver = resolver;
}
/** @return the PropertyResolver called through Application.getPropertyResolver() */
@SuppressWarnings("deprecation")
public PropertyResolver getLegacyPropertyResolver() {
return legacyPropertyResolver;
}
/**
* Maintains the PropertyResolver called through Application.setVariableResolver()
*
* @param resolver VariableResolver
*/
@SuppressWarnings("deprecation")
public void setLegacyVariableResolver(VariableResolver resolver) {
this.legacyVariableResolver = resolver;
}
/** @return the VariableResolver called through Application.getVariableResolver() */
@SuppressWarnings("deprecation")
public VariableResolver getLegacyVariableResolver() {
return legacyVariableResolver;
}
/**
* Called by application code to indicate we've processed the first request to the application.
*/
public void setRequestServiced() {
this.requestServiced = true;
}
/** @return <code>true</code> if we've processed a request, otherwise <code>false</code> */
public boolean hasRequestBeenServiced() {
return requestServiced;
}
/**
* Add a navigation case to the internal case list. If a case list does not already exist in the
* case list map containing this case (identified by <code>from-view-id</code>), start a new list,
* add the case to it, and store the list in the case list map. If a case list already exists, see
* if a case entry exists in the list with a matching <code>from-view-id</code><code>from-action
* </code> <code>from-outcome</code> combination. If there is suach an entry, overwrite it with
* this new case. Otherwise, add the case to the list.
*
* @param navigationCase the navigation case containing navigation mapping information from the
* configuration file.
*/
public void addNavigationCase(ConfigNavigationCase navigationCase) {
String fromViewId = navigationCase.getFromViewId();
List<ConfigNavigationCase> caseList = caseListMap.get(fromViewId);
if (caseList == null) {
//noinspection CollectionWithoutInitialCapacity
caseList = new ArrayList<ConfigNavigationCase>();
caseList.add(navigationCase);
caseListMap.put(fromViewId, caseList);
} else {
String key = navigationCase.getKey();
boolean foundIt = false;
for (int i = 0; i < caseList.size(); i++) {
ConfigNavigationCase navCase = caseList.get(i);
// if there already is a case existing for the
// fromviewid/fromaction.fromoutcome combination,
// replace it ... (last one wins).
//
if (key.equals(navCase.getKey())) {
caseList.set(i, navigationCase);
foundIt = true;
break;
}
}
if (!foundIt) {
caseList.add(navigationCase);
}
}
if (fromViewId.endsWith("*")) {
fromViewId = fromViewId.substring(0, fromViewId.lastIndexOf('*'));
wildcardMatchList.add(fromViewId);
}
}
/**
* Return a <code>Map</code> of navigation mappings loaded from the configuration system. The key
* for the returned <code>Map</code> is <code>from-view-id</code>, and the value is a <code>List
* </code> of navigation cases.
*
* @return Map the map of navigation mappings.
*/
public Map<String, List<ConfigNavigationCase>> getNavigationCaseListMappings() {
if (caseListMap == null) {
return Collections.emptyMap();
}
return caseListMap;
}
/**
* Return all navigation mappings whose <code>from-view-id</code> contained a trailing "*".
*
* @return <code>TreeSet</code> The navigation mappings sorted in descending order.
*/
public TreeSet<String> getNavigationWildCardList() {
return wildcardMatchList;
}
public ResourceBundle getResourceBundle(FacesContext context, String var) {
ApplicationResourceBundle bundle = resourceBundles.get(var);
if (bundle == null) {
return null;
}
UIViewRoot root;
// Start out with the default locale
Locale locale;
Locale defaultLocale = Locale.getDefault();
locale = defaultLocale;
// See if this FacesContext has a ViewRoot
if (null != (root = context.getViewRoot())) {
// If so, ask it for its Locale
if (null == (locale = root.getLocale())) {
// If the ViewRoot has no Locale, fall back to the default.
locale = defaultLocale;
}
}
assert (null != locale);
// ResourceBundleBean bean = resourceBundles.get(var);
return bundle.getResourceBundle(locale);
}
/**
* keys: <var> element from faces-config
*
* <p>
*
* <p>values: ResourceBundleBean instances.
*/
@SuppressWarnings({"CollectionWithoutInitialCapacity"})
Map<String, ApplicationResourceBundle> resourceBundles =
new HashMap<String, ApplicationResourceBundle>();
public void addResourceBundle(String var, ApplicationResourceBundle bundle) {
resourceBundles.put(var, bundle);
}
public Map<String, ApplicationResourceBundle> getResourceBundles() {
return resourceBundles;
}
// This is called by ViewHandlerImpl.renderView().
public void responseRendered() {
responseRendered = true;
}
public boolean isResponseRendered() {
return responseRendered;
}
protected FaceletFactory createFaceletFactory(Compiler c, WebConfiguration webConfig) {
// refresh period
String refreshPeriod =
webConfig.getOptionValue(
WebConfiguration.WebContextInitParameter.FaceletsDefaultRefreshPeriod);
long period = Long.parseLong(refreshPeriod);
// resource resolver
ResourceResolver resolver = new DefaultResourceResolver();
String resolverName =
webConfig.getOptionValue(WebConfiguration.WebContextInitParameter.FaceletsResourceResolver);
if (resolverName != null && resolverName.length() > 0) {
try {
resolver = (ResourceResolver) ReflectionUtil.forName(resolverName).newInstance();
} catch (Exception e) {
throw new FacesException("Error Initializing ResourceResolver[" + resolverName + "]", e);
}
}
// Resource.getResourceUrl(ctx,"/")
return new DefaultFaceletFactory(c, resolver, period);
}
protected Compiler createCompiler(WebConfiguration webConfig) {
Compiler c = new SAXCompiler();
// load decorators
String decParam =
webConfig.getOptionValue(WebConfiguration.WebContextInitParameter.FaceletsDecorators);
if (decParam != null) {
decParam = decParam.trim();
String[] decs = Util.split(decParam, ";");
TagDecorator decObj;
for (int i = 0; i < decs.length; i++) {
try {
decObj = (TagDecorator) ReflectionUtil.forName(decs[i]).newInstance();
c.addTagDecorator(decObj);
if (LOGGER.isLoggable(Level.FINE)) {
LOGGER.log(Level.FINE, "Successfully Loaded Decorator: {0}", decs[i]);
}
} catch (Exception e) {
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(Level.SEVERE, "Error Loading Decorator: " + decs[i], e);
}
}
}
}
// skip params?
c.setTrimmingComments(
webConfig.isOptionEnabled(BooleanWebContextInitParameter.FaceletsSkipComments));
c.addTagLibrary(new CoreLibrary());
c.addTagLibrary(new HtmlLibrary());
c.addTagLibrary(new UILibrary());
c.addTagLibrary(new JstlCoreLibrary());
c.addTagLibrary(new JstlFnLibrary());
c.addTagLibrary(new CompositeLibrary());
return c;
}
/**
* This Comparator class will help sort the <code>ConfigNavigationCase</code> objects based on
* their <code>fromViewId</code> properties in descending order - largest string to smallest
* string.
*/
static class SortIt implements Comparator<String> {
public int compare(String fromViewId1, String fromViewId2) {
return -(fromViewId1.compareTo(fromViewId2));
}
}
}
/** This {@link ViewHandler} implementation handles both JSP-based and Facelets/PDL-based views. */
public class MultiViewHandler extends ViewHandler {
// Log instance for this class
private static final Logger logger = FacesLogger.APPLICATION.getLogger();
private String[] configuredExtensions;
private boolean extensionsSet;
private ViewDeclarationLanguageFactory vdlFactory;
// ------------------------------------------------------------ Constructors
public MultiViewHandler() {
WebConfiguration config = WebConfiguration.getInstance();
configuredExtensions =
config.getOptionValue(WebConfiguration.WebContextInitParameter.DefaultSuffix, " ");
extensionsSet = config.isSet(WebConfiguration.WebContextInitParameter.DefaultSuffix);
vdlFactory =
(ViewDeclarationLanguageFactory)
FactoryFinder.getFactory(FactoryFinder.VIEW_DECLARATION_LANGUAGE_FACTORY);
}
// ------------------------------------------------ Methods from ViewHandler
/**
* Do not call the default implementation of {@link
* javax.faces.application.ViewHandler#initView(javax.faces.context.FacesContext)} if the {@link
* javax.faces.context.ExternalContext#getRequestCharacterEncoding()} returns a <code>non-null
* </code> result.
*
* @see javax.faces.application.ViewHandler#initView(javax.faces.context.FacesContext)
*/
@Override
public void initView(FacesContext context) throws FacesException {
if (context.getExternalContext().getRequestCharacterEncoding() == null) {
super.initView(context);
}
}
/**
* Call {@link ViewDeclarationLanguage#renderView(javax.faces.context.FacesContext,
* javax.faces.component.UIViewRoot)} if the view can be rendered.
*
* @see ViewHandler#renderView(javax.faces.context.FacesContext, javax.faces.component.UIViewRoot)
*/
public void renderView(FacesContext context, UIViewRoot viewToRender)
throws IOException, FacesException {
Util.notNull("context", context);
Util.notNull("viewToRender", viewToRender);
vdlFactory
.getViewDeclarationLanguage(viewToRender.getViewId())
.renderView(context, viewToRender);
}
/**
* Call {@link ViewDeclarationLanguage#restoreView(javax.faces.context.FacesContext, String)}.
*
* @see ViewHandler#restoreView(javax.faces.context.FacesContext, String)
*/
public UIViewRoot restoreView(FacesContext context, String viewId) {
Util.notNull("context", context);
String actualViewId = derivePhysicalViewId(context, viewId, false);
return vdlFactory.getViewDeclarationLanguage(actualViewId).restoreView(context, actualViewId);
}
/**
* Derive the actual view ID (i.e. the physical resource) and call call {@link
* ViewDeclarationLanguage#createView(javax.faces.context.FacesContext, String)}.
*
* @see ViewHandler#restoreView(javax.faces.context.FacesContext, String)
*/
public UIViewRoot createView(FacesContext context, String viewId) {
Util.notNull("context", context);
String actualViewId = derivePhysicalViewId(context, viewId, false);
return vdlFactory.getViewDeclarationLanguage(actualViewId).createView(context, actualViewId);
}
/**
* This code is currently common to all {@link ViewHandlingStrategy} instances.
*
* @see ViewHandler#calculateLocale(javax.faces.context.FacesContext)
*/
public Locale calculateLocale(FacesContext context) {
Util.notNull("context", context);
Locale result = null;
// determine the locales that are acceptable to the client based on the
// Accept-Language header and the find the best match among the
// supported locales specified by the client.
Iterator<Locale> locales = context.getExternalContext().getRequestLocales();
while (locales.hasNext()) {
Locale perf = locales.next();
result = findMatch(context, perf);
if (result != null) {
break;
}
}
// no match is found.
if (result == null) {
if (context.getApplication().getDefaultLocale() == null) {
result = Locale.getDefault();
} else {
result = context.getApplication().getDefaultLocale();
}
}
return result;
}
/**
* This code is currently common to all {@link ViewHandlingStrategy} instances.
*
* @see ViewHandler#calculateRenderKitId(javax.faces.context.FacesContext)
*/
public String calculateRenderKitId(FacesContext context) {
Util.notNull("context", context);
Map<String, String> requestParamMap = context.getExternalContext().getRequestParameterMap();
String result = requestParamMap.get(ResponseStateManager.RENDER_KIT_ID_PARAM);
if (result == null) {
if (null == (result = context.getApplication().getDefaultRenderKitId())) {
result = RenderKitFactory.HTML_BASIC_RENDER_KIT;
}
}
return result;
}
/**
* This code is currently common to all {@link ViewHandlingStrategy} instances.
*
* @see ViewHandler#writeState(javax.faces.context.FacesContext)
*/
public void writeState(FacesContext context) throws IOException {
Util.notNull("context", context);
if (!context.getPartialViewContext().isAjaxRequest() && !context.getViewRoot().isTransient()) {
if (logger.isLoggable(Level.FINE)) {
logger.fine("Begin writing marker for viewId " + context.getViewRoot().getViewId());
}
WriteBehindStateWriter writer = WriteBehindStateWriter.getCurrentInstance();
if (writer != null) {
writer.writingState();
}
context.getResponseWriter().write(RIConstants.SAVESTATE_FIELD_MARKER);
if (logger.isLoggable(Level.FINE)) {
logger.fine("End writing marker for viewId " + context.getViewRoot().getViewId());
}
}
}
/**
* This code is currently common to all {@link ViewHandlingStrategy} instances.
*
* @see ViewHandler#getActionURL(javax.faces.context.FacesContext, String)
*/
public String getActionURL(FacesContext context, String viewId) {
Util.notNull("context", context);
Util.notNull("viewId", viewId);
if (viewId.charAt(0) != '/') {
String message =
MessageUtils.getExceptionMessageString(MessageUtils.ILLEGAL_VIEW_ID_ID, viewId);
if (logger.isLoggable(Level.SEVERE)) {
logger.log(Level.SEVERE, "jsf.illegal_view_id_error", viewId);
}
throw new IllegalArgumentException(message);
}
// Acquire the context path, which we will prefix on all results
ExternalContext extContext = context.getExternalContext();
String contextPath = extContext.getRequestContextPath();
// Acquire the mapping used to execute this request (if any)
String mapping = Util.getFacesMapping(context);
// If no mapping can be identified, just return a server-relative path
if (mapping == null) {
return (contextPath + viewId);
}
// Deal with prefix mapping
if (Util.isPrefixMapped(mapping)) {
if (mapping.equals("/*")) {
return (contextPath + viewId);
} else {
return (contextPath + mapping + viewId);
}
}
// Deal with extension mapping
int period = viewId.lastIndexOf('.');
if (period < 0) {
return (contextPath + viewId + mapping);
} else if (!viewId.endsWith(mapping)) {
for (String ext : configuredExtensions) {
if (viewId.endsWith(ext)) {
return (contextPath + viewId.substring(0, viewId.indexOf(ext)) + mapping);
}
}
return (contextPath + viewId.substring(0, period) + mapping);
} else {
return (contextPath + viewId);
}
}
/**
* This code is currently common to all {@link ViewHandlingStrategy} instances.
*
* @see ViewHandler#getResourceURL(javax.faces.context.FacesContext, String)
*/
public String getResourceURL(FacesContext context, String path) {
ExternalContext extContext = context.getExternalContext();
if (path.charAt(0) == '/') {
return (extContext.getRequestContextPath() + path);
} else {
return path;
}
}
@Override
public String getBookmarkableURL(
FacesContext context,
String viewId,
Map<String, List<String>> parameters,
boolean includeViewParams) {
Map<String, List<String>> params;
if (includeViewParams) {
params = getFullParameterList(context, viewId, parameters);
} else {
params = parameters;
}
ExternalContext ectx = context.getExternalContext();
return ectx.encodeActionURL(
ectx.encodeBookmarkableURL(
Util.getViewHandler(context).getActionURL(context, viewId), params));
}
/**
* @see ViewHandler#getRedirectURL(javax.faces.context.FacesContext, String, java.util.Map,
* boolean)
*/
@Override
public String getRedirectURL(
FacesContext context,
String viewId,
Map<String, List<String>> parameters,
boolean includeViewParams) {
Map<String, List<String>> params;
if (includeViewParams) {
params = getFullParameterList(context, viewId, parameters);
} else {
params = parameters;
}
ExternalContext ectx = context.getExternalContext();
return ectx.encodeActionURL(
ectx.encodeRedirectURL(Util.getViewHandler(context).getActionURL(context, viewId), params));
}
/** @see ViewHandler#getViewDeclarationLanguage(javax.faces.context.FacesContext, String) */
@Override
public ViewDeclarationLanguage getViewDeclarationLanguage(FacesContext context, String viewId) {
String actualViewId = derivePhysicalViewId(context, viewId, false);
return vdlFactory.getViewDeclarationLanguage(actualViewId);
}
@Override
public String deriveViewId(FacesContext context, String rawViewId) {
return derivePhysicalViewId(context, rawViewId, true);
}
// ------------------------------------------------------- Protected Methods
/**
* if the specified mapping is a prefix mapping, and the provided request URI (usually the value
* from <code>ExternalContext.getRequestServletPath()</code>) starts with <code>mapping + '/'
* </code>, prune the mapping from the URI and return it, otherwise, return the original URI.
*
* @param uri the servlet request path
* @param mapping the FacesServlet mapping used for this request
* @return the URI without additional FacesServlet mappings
* @since 1.2
*/
protected String normalizeRequestURI(String uri, String mapping) {
if (mapping == null || !Util.isPrefixMapped(mapping)) {
return uri;
} else {
int length = mapping.length() + 1;
StringBuilder builder = new StringBuilder(length);
builder.append(mapping).append('/');
String mappingMod = builder.toString();
boolean logged = false;
while (uri.startsWith(mappingMod)) {
if (!logged && logger.isLoggable(Level.WARNING)) {
logged = true;
logger.log(
Level.WARNING, "jsf.viewhandler.requestpath.recursion", new Object[] {uri, mapping});
}
uri = uri.substring(length - 1);
}
return uri;
}
}
/**
* Adjust the viewID per the requirements of {@link #renderView}.
*
* @param context current {@link javax.faces.context.FacesContext}
* @param viewId incoming view ID
* @return the view ID with an altered suffix mapping (if necessary)
*/
protected String convertViewId(FacesContext context, String viewId) {
// if the viewId doesn't already use the above suffix,
// replace or append.
int extIdx = viewId.lastIndexOf('.');
int length = viewId.length();
StringBuilder buffer = new StringBuilder(length);
for (String ext : configuredExtensions) {
if (viewId.endsWith(ext)) {
return viewId;
}
appendOrReplaceExtension(viewId, ext, length, extIdx, buffer);
String convertedViewId = buffer.toString();
try {
if (context.getExternalContext().getResource(convertedViewId) != null) {
// RELEASE_PENDING (rlubke,driscoll) cache the lookup
return convertedViewId;
}
} catch (MalformedURLException e) {
if (logger.isLoggable(Level.SEVERE)) {
logger.log(Level.SEVERE, e.toString(), e);
}
}
}
// unable to find any resource match that the default ViewHandler
// can deal with. Fall back to legacy (JSF 1.2) id conversion.
return legacyConvertViewId(viewId, length, extIdx, buffer);
}
protected String derivePhysicalViewId(FacesContext ctx, String rawViewId, boolean checkPhysical) {
if (rawViewId != null) {
String mapping = Util.getFacesMapping(ctx);
String viewId;
if (mapping != null) {
if (!Util.isPrefixMapped(mapping)) {
viewId = convertViewId(ctx, rawViewId);
} else {
viewId = normalizeRequestURI(rawViewId, mapping);
if (viewId.equals(mapping)) {
// The request was to the FacesServlet only - no
// path info
// on some containers this causes a recursion in the
// RequestDispatcher and the request appears to hang.
// If this is detected, return status 404
send404Error(ctx);
}
}
try {
if (checkPhysical) {
return ((ctx.getExternalContext().getResource(viewId) != null) ? viewId : null);
} else {
return viewId;
}
} catch (MalformedURLException mue) {
if (logger.isLoggable(Level.SEVERE)) {
logger.log(Level.SEVERE, mue.toString(), mue);
}
return null;
}
}
}
return rawViewId;
}
protected Map<String, List<String>> getFullParameterList(
FacesContext ctx, String viewId, Map<String, List<String>> existingParameters) {
Map<String, List<String>> copy;
if (existingParameters == null || existingParameters.isEmpty()) {
copy = new LinkedHashMap<String, List<String>>(4);
} else {
copy = new LinkedHashMap<String, List<String>>(existingParameters);
}
addViewParameters(ctx, viewId, copy);
return copy;
}
protected void addViewParameters(
FacesContext ctx, String viewId, Map<String, List<String>> existingParameters) {
UIViewRoot currentRoot = ctx.getViewRoot();
String currentViewId = currentRoot.getViewId();
Collection<UIViewParameter> toViewParams;
Collection<UIViewParameter> currentViewParams;
boolean currentIsSameAsNew = false;
currentViewParams = ViewMetadata.getViewParameters(currentRoot);
if (currentViewId.equals(viewId)) {
currentIsSameAsNew = true;
toViewParams = currentViewParams;
} else {
ViewDeclarationLanguage pdl = getViewDeclarationLanguage(ctx, viewId);
ViewMetadata viewMetadata = pdl.getViewMetadata(ctx, viewId);
UIViewRoot root = viewMetadata.createMetadataView(ctx);
toViewParams = ViewMetadata.getViewParameters(root);
}
if (toViewParams.isEmpty()) {
return;
}
for (UIViewParameter viewParam : toViewParams) {
String value;
// don't bother looking at view parameter if it's been overridden
if (existingParameters.containsKey(viewParam.getName())) {
continue;
} else if (paramHasValueExpression(viewParam)) {
value = viewParam.getStringValueFromModel(ctx);
} else {
// Anonymous view parameter:
// Get string value from UIViewParameter instance stored in current view
if (currentIsSameAsNew) {
value = viewParam.getStringValue(ctx);
}
// ...or transfer string value from matching UIViewParameter instance stored in current view
else {
value = getStringValueToTransfer(ctx, viewParam, currentViewParams);
}
}
if (value != null) {
List<String> existing = existingParameters.get(viewParam.getName());
if (existing == null) {
existing = new ArrayList<String>(4);
existingParameters.put(viewParam.getName(), existing);
}
existing.add(value);
}
}
}
/**
* Attempts to find a matching locale based on <code>pref</code> and list of supported locales,
* using the matching algorithm as described in JSTL 8.3.2.
*
* @param context the <code>FacesContext</code> for the current request
* @param pref the preferred locale
* @return the Locale based on pref and the matching alogritm specified in JSTL 8.3.2
*/
protected Locale findMatch(FacesContext context, Locale pref) {
Locale result = null;
Iterator<Locale> it = context.getApplication().getSupportedLocales();
while (it.hasNext()) {
Locale supportedLocale = it.next();
if (pref.equals(supportedLocale)) {
// exact match
result = supportedLocale;
break;
} else {
// Make sure the preferred locale doesn't have country
// set, when doing a language match, For ex., if the
// preferred locale is "en-US", if one of supported
// locales is "en-UK", even though its language matches
// that of the preferred locale, we must ignore it.
if (pref.getLanguage().equals(supportedLocale.getLanguage())
&& supportedLocale.getCountry().length() == 0) {
result = supportedLocale;
}
}
}
// if it's not in the supported locales,
if (null == result) {
Locale defaultLocale = context.getApplication().getDefaultLocale();
if (defaultLocale != null) {
if (pref.equals(defaultLocale)) {
// exact match
result = defaultLocale;
} else {
// Make sure the preferred locale doesn't have country
// set, when doing a language match, For ex., if the
// preferred locale is "en-US", if one of supported
// locales is "en-UK", even though its language matches
// that of the preferred locale, we must ignore it.
if (pref.getLanguage().equals(defaultLocale.getLanguage())
&& defaultLocale.getCountry().length() == 0) {
result = defaultLocale;
}
}
}
}
return result;
}
/**
* Send {@link HttpServletResponse#SC_NOT_FOUND} (404) to the client.
*
* @param context the {@link FacesContext} for the current request
*/
protected void send404Error(FacesContext context) {
try {
context.responseComplete();
context.getExternalContext().responseSendError(HttpServletResponse.SC_NOT_FOUND, "");
} catch (IOException ioe) {
throw new FacesException(ioe);
}
}
// --------------------------------------------------------- Private Methods
private static boolean paramHasValueExpression(UIViewParameter param) {
return (param.getValueExpression("value") != null);
}
private static String getStringValueToTransfer(
FacesContext context, UIViewParameter param, Collection<UIViewParameter> viewParams) {
if (viewParams != null && !viewParams.isEmpty()) {
for (UIViewParameter candidate : viewParams) {
if ((null != candidate.getName() && null != param.getName())
&& candidate.getName().equals(param.getName())) {
return candidate.getStringValue(context);
} else {
return param.getStringValue(context);
}
}
}
return null;
}
// Utility method used by viewId conversion. Appends the extension
// if no extension is present. Otherwise, replaces the extension.
private void appendOrReplaceExtension(
String viewId, String ext, int length, int extIdx, StringBuilder buffer) {
buffer.setLength(0);
buffer.append(viewId);
if (extIdx != -1) {
buffer.replace(extIdx, length, ext);
} else {
// no extension in the provided viewId, append the suffix
buffer.append(ext);
}
}
private String legacyConvertViewId(String viewId, int length, int extIdx, StringBuilder buffer) {
// In 1.2, the viewId was converted by replacing the extension
// with the single extension specified by javax.faces.DEFAULT_SUFFIX,
// which defaulted to ".jsp". In 2.0, javax.faces.DEFAULT_SUFFIX
// may specify multiple extensions. If javax.faces.DEFAULT_SUFFIX is
// explicitly set, we honor it and pick off the first specified
// extension. If javax.faces.DEFAULT_SUFFIX is not explicitly set,
// we honor the default 1.2 behavior and use ".jsp" as the suffix.
String ext =
(extensionsSet && !(configuredExtensions.length == 0)) ? configuredExtensions[0] : ".jsp";
if (viewId.endsWith(ext)) {
return viewId;
}
appendOrReplaceExtension(viewId, ext, length, extIdx, buffer);
return buffer.toString();
}
}