@Override
public Object getValue(ELContext context) {
ELContext nxcontext = getLocalContext(context);
Object res = null;
if (originalValueExpression != null) {
res = originalValueExpression.getValue(nxcontext);
if (res instanceof String) {
String expression = (String) res;
if (ComponentTagUtils.isValueReference(expression)) {
FacesContext faces = FacesContext.getCurrentInstance();
Application app = faces.getApplication();
ExpressionFactory factory = app.getExpressionFactory();
ValueExpression newExpr =
factory.createValueExpression(nxcontext, expression, expectedType);
try {
res = newExpr.getValue(nxcontext);
} catch (ELException err) {
log.error("Error processing expression " + expression + ": " + err);
res = null;
}
} else {
res = expression;
}
}
}
return res;
}
protected Converter createConverter() throws JspException {
FacesContext context = FacesContext.getCurrentInstance();
ELContext elctx = context.getELContext();
if (binding != null) {
Converter boundConverter = (NumberConverter) binding.getValue(elctx);
if (boundConverter != null) return boundConverter;
}
NumberConverter converter = new NumberConverter();
if (currencyCode != null) converter.setCurrencyCode((String) currencyCode.getValue(elctx));
if (currencySymbol != null)
converter.setCurrencySymbol((String) currencySymbol.getValue(elctx));
if (groupingUsed != null) converter.setGroupingUsed((Boolean) groupingUsed.getValue(elctx));
if (integerOnly != null) converter.setIntegerOnly((Boolean) integerOnly.getValue(elctx));
if (maxFractionDigits != null)
converter.setMaxFractionDigits((Integer) maxFractionDigits.getValue(elctx));
if (minFractionDigits != null)
converter.setMinFractionDigits((Integer) minFractionDigits.getValue(elctx));
if (minIntegerDigits != null)
converter.setMinIntegerDigits((Integer) minIntegerDigits.getValue(elctx));
if (pattern != null) converter.setPattern((String) pattern.getValue(elctx));
if (type != null) converter.setType((String) type.getValue(elctx));
Locale loc = null;
if (locale != null) loc = FacesUtils.getLocaleFromExpression(context, locale);
if (loc == null) loc = context.getViewRoot().getLocale();
converter.setLocale(loc);
if (binding != null) binding.setValue(elctx, converter);
return converter;
}
public void testMixedBean() throws Exception {
ValueExpression vb = ELUtils.createValueExpression("#{mixedBean}");
TestBean bean = (TestBean) vb.getValue(getFacesContext().getELContext());
assertEquals("mixed value Bobby \" \\ \\\" Orr", bean.getProp());
vb = ELUtils.createValueExpression("#{mixedBean.prop}");
assertEquals(bean.getProp(), (String) vb.getValue(getFacesContext().getELContext()));
}
public void testMixedBeanPositive() throws Exception {
ValueExpression vb = ELUtils.createValueExpression("#{threeBeanSaladPositive}");
TestBean bean = (TestBean) vb.getValue(getFacesContext().getELContext());
assertEquals("request request session session none none", bean.getProp());
vb = ELUtils.createValueExpression("#{threeBeanSaladPositive.prop}");
assertEquals(bean.getProp(), (String) vb.getValue(getFacesContext().getELContext()));
}
/**
* Set a property of type int[]. If the value is an EL expression, it will be stored as a
* ValueExpression. Otherwise, it will parsed as a whitespace-separated series of ints. Null
* values are ignored.
*/
protected void setIntArrayProperty(FacesBean bean, PropertyKey key, ValueExpression expression) {
if (expression == null) return;
if (expression.isLiteralText()) {
Object value = expression.getValue(null);
if (value != null) {
String[] strings = _parseNameTokens(value);
final int[] ints;
if (strings != null) {
try {
ints = new int[strings.length];
for (int i = 0; i < strings.length; i++) {
int j = Integer.parseInt(strings[i]);
ints[i] = j;
}
} catch (NumberFormatException e) {
_LOG.severe("CANNOT_CONVERT_INTO_INT_ARRAY", value);
_LOG.severe(e);
return;
}
}
}
} else {
bean.setValueExpression(key, expression);
}
}
public static UIComponent addFacet(
FacesContext context,
ServletRequest req,
UIComponent parent,
String facetName,
ValueExpression binding,
Class childClass)
throws Exception {
if (context == null) context = FacesContext.getCurrentInstance();
if (parent == null) {
UIComponentClassicTagBase parentTag =
(UIComponentClassicTagBase) req.getAttribute("caucho.jsf.parent");
parent = parentTag.getComponentInstance();
}
UIComponent child = null;
if (binding != null) child = (UIComponent) binding.getValue(context.getELContext());
if (child == null) child = (UIComponent) childClass.newInstance();
if (parent != null) parent.getFacets().put(facetName, child);
if (binding != null) binding.setValue(context.getELContext(), child);
return child;
}
public static UIComponent addPersistent(
FacesContext context,
ServletRequest req,
UIComponent parent,
ValueExpression binding,
Class childClass)
throws Exception {
if (context == null) context = FacesContext.getCurrentInstance();
if (parent == null) {
UIComponentClassicTagBase parentTag =
(UIComponentClassicTagBase) req.getAttribute("caucho.jsf.parent");
parent = parentTag.getComponentInstance();
BodyContent body = parentTag.getBodyContent();
addVerbatim(parent, body);
}
UIComponent child = null;
if (binding != null) child = (UIComponent) binding.getValue(context.getELContext());
if (child == null) {
child = (UIComponent) childClass.newInstance();
// jsf/3251
if (binding != null) binding.setValue(context.getELContext(), child);
}
if (parent != null) parent.getChildren().add(child);
return child;
}
@Override
public Object getAsObject(FacesContext context, UIComponent component, String value) {
if (context == null) {
throw new NullPointerException("context");
}
if (component == null) {
throw new NullPointerException("component");
}
FacesContext ctx = FacesContext.getCurrentInstance();
ValueExpression vex =
ctx.getApplication()
.getExpressionFactory()
.createValueExpression(
ctx.getELContext(), "#{managedBeanDepartamento}", ManagedBeanDepartamento.class);
ManagedBeanDepartamento managedBean =
(ManagedBeanDepartamento) vex.getValue(ctx.getELContext());
Departamento objeto;
try {
objeto = managedBean.traerObjeto(value);
} catch (NumberFormatException e) {
FacesMessage message =
new FacesMessage(
FacesMessage.SEVERITY_ERROR, "Valor Desconocido", "NumberFormatException");
throw new ConverterException(message);
}
if (objeto == null) {
FacesMessage message =
new FacesMessage(FacesMessage.SEVERITY_ERROR, "Valor Desconocido", "Object NULL");
throw new ConverterException(message);
}
return objeto;
}
static final String evalString(ValueExpression expr, FacesContext context) {
try {
return (String) expr.getValue(context.getELContext());
} catch (ELException e) {
throw new FacesException(e);
}
}
static final int evalInt(ValueExpression expr, FacesContext context) {
try {
return (Integer) expr.getValue(context.getELContext());
} catch (ELException e) {
throw new FacesException(e);
}
}
@Override
public Class getPropertyType(String name) {
PropertyDescriptor compDescriptor = findDescriptor(name);
if (compDescriptor != null) {
// composite:attribute declaration...
ValueExpression typeVE = (ValueExpression) compDescriptor.getValue("type");
if (typeVE == null) {
return Object.class;
} else {
String className =
(String) typeVE.getValue(FacesContext.getCurrentInstance().getELContext());
if (className != null) {
className = prefix(className);
try {
return ReflectionUtil.forName(className);
} catch (ClassNotFoundException cnfe) {
throw new FacesException(cnfe);
}
} else {
return Object.class;
}
}
} else {
// defer to the default processing which will inspect the
// PropertyDescriptor of the UIComponent type
return super.getPropertyType(name);
}
}
// Sets a property, converting it from a literal
private void setLiteralValue(String propertyName, ValueExpression expression) {
assert (expression.isLiteralText());
Object value;
ELContext context = FacesContext.getCurrentInstance().getELContext();
try {
value = expression.getValue(context);
} catch (ELException ele) {
throw new FacesException(ele);
}
if (ONEVENT.equals(propertyName)) {
onevent = (String) value;
} else if (ONERROR.equals(propertyName)) {
onerror = (String) value;
} else if (IMMEDIATE.equals(propertyName)) {
immediate = (Boolean) value;
} else if (DISABLED.equals(propertyName)) {
disabled = (Boolean) value;
} else if (EXECUTE.equals(propertyName)) {
execute = toList(propertyName, expression, value);
} else if (RENDER.equals(propertyName)) {
render = toList(propertyName, expression, value);
}
}
public void applyAttachedObject(FacesContext context, UIComponent parent) {
FaceletContext ctx =
(FaceletContext) context.getAttributes().get(FaceletContext.FACELET_CONTEXT_KEY);
// cast to a ValueHolder
ValueHolder vh = (ValueHolder) parent;
ValueExpression ve = null;
Converter c = null;
if (this.binding != null) {
ve = this.binding.getValueExpression(ctx, Converter.class);
c = (Converter) ve.getValue(ctx);
}
if (c == null) {
c = this.createConverter(ctx);
if (ve != null) {
ve.setValue(ctx, c);
}
}
if (c == null) {
throw new TagException(this.tag, "No Converter was created");
}
this.setAttributes(ctx, c);
vh.setConverter(c);
Object lv = vh.getLocalValue();
FacesContext faces = ctx.getFacesContext();
if (lv instanceof String) {
vh.setValue(c.getAsObject(faces, parent, (String) lv));
}
}
public UIComponent createComponent(FaceletContext ctx) {
FacesContext context = ctx.getFacesContext();
UIComponent cc;
// we have to handle the binding here, as Application doesn't
// expose a method to do so with Resource.
if (binding != null) {
ValueExpression ve = binding.getValueExpression(ctx, UIComponent.class);
cc = (UIComponent) ve.getValue(ctx);
if (cc != null && !UIComponent.isCompositeComponent(cc)) {
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(Level.SEVERE, "jsf.compcomp.binding.eval.non.compcomp", binding.toString());
}
cc = null;
}
if (cc == null) {
cc = context.getApplication().createComponent(context, ccResource);
ve.setValue(ctx, cc);
}
} else {
cc = context.getApplication().createComponent(context, ccResource);
}
setCompositeComponent(context, cc);
return cc;
}
@Override
public Object getAsObject(FacesContext context, UIComponent component, String value) {
if (context == null) {
throw new NullPointerException("context");
}
if (component == null) {
throw new NullPointerException("component");
}
FacesContext ctx = FacesContext.getCurrentInstance();
ValueExpression vex =
ctx.getApplication()
.getExpressionFactory()
.createValueExpression(
ctx.getELContext(), "#{managedBeanUnidadMedida}", ManagedBeanUnidadMedida.class);
ManagedBeanUnidadMedida unidades = (ManagedBeanUnidadMedida) vex.getValue(ctx.getELContext());
UnidadMedida unidad;
try {
unidad = unidades.getUnidadMedida(new Integer(value));
} catch (NumberFormatException e) {
FacesMessage message =
new FacesMessage(
FacesMessage.SEVERITY_ERROR,
"Valor Desconocido",
"Este no es un Numero de Unidad de Medida");
throw new ConverterException(message);
}
if (unidad == null) {
FacesMessage message =
new FacesMessage(
FacesMessage.SEVERITY_ERROR, "Valor Desconocido", "La Unidad de Medida desconocida");
throw new ConverterException(message);
}
return unidad;
}
private final MethodExpression getMethodExpression(EvaluationContext ctx) throws ELException {
Object obj = null;
// case A: ValueExpression exists, getValue which must
// be a MethodExpression
VariableMapper varMapper = ctx.getVariableMapper();
ValueExpression ve = null;
if (varMapper != null) {
ve = varMapper.resolveVariable(this.image);
if (ve != null) {
obj = ve.getValue(ctx);
}
}
// case B: evaluate the identity against the ELResolver, again, must be
// a MethodExpression to be able to invoke
if (ve == null) {
ctx.setPropertyResolved(false);
obj = ctx.getELResolver().getValue(ctx, null, this.image);
}
// finally provide helpful hints
if (obj instanceof MethodExpression) {
return (MethodExpression) obj;
} else if (obj == null) {
throw new MethodNotFoundException(
"Identity '" + this.image + "' was null and was unable to invoke");
} else {
throw new ELException(
"Identity '"
+ this.image
+ "' does not reference a MethodExpression instance, returned type: "
+ obj.getClass().getName());
}
}
/** If page >= 1 then it's a page number to show */
@Attribute
public int getPage() {
UIComponent dataTable = getDataTable();
Map<String, Object> attributes = dataTable.getAttributes();
FacesContext facesContext = getFacesContext();
Integer state =
(Integer) attributes.get(dataTable.getClientId(facesContext) + SCROLLER_STATE_ATTRIBUTE);
if (state != null) {
return state;
}
if (this.page != null) {
return page;
}
ValueExpression ve = getValueExpression("page");
if (ve != null) {
try {
Integer pageObject = (Integer) ve.getValue(getFacesContext().getELContext());
if (pageObject != null) {
return pageObject;
}
} catch (ELException e) {
throw new FacesException(e);
}
}
return 1;
}
public void processEvent(FacesEvent event) throws AbortProcessingException {
FacesContext faces = FacesContext.getCurrentInstance();
if (faces == null) {
return;
}
L instance = null;
if (this.binding != null) {
instance = (L) binding.getValue(faces.getELContext());
}
if (instance == null && this.type != null) {
try {
instance = (L) TagHandlerUtils.loadClass(this.type, Object.class).newInstance();
} catch (Exception e) {
throw new AbortProcessingException("Couldn't Lazily instantiate EventListener", e);
}
if (this.binding != null) {
binding.setValue(faces.getELContext(), instance);
}
}
if (instance != null) {
event.processListener(instance);
}
}
@Override
protected void setProperties(UIComponent component) {
if (component instanceof SiteTreeViewer) {
if (rootNodeExpression == null) {
new IllegalArgumentException("Provide root node");
}
Object o = null;
IWContext iwc = CoreUtil.getIWContext();
if (iwc == null) {
return;
}
ValueExpression ve =
WFUtil.createValueExpression(getELContext(), rootNodeExpression, TreeNode.class);
o = ve.getValue(getELContext());
if (!(o instanceof TreeNode)) {
new IllegalArgumentException("Provide root node");
}
rootNode = (TreeNode) o;
SiteTreeViewer treeViewer = (SiteTreeViewer) component;
treeViewer.setRootNode(rootNode);
treeViewer.setLinkStyleClass(linkStyleClass);
treeViewer.setIwTreeId(iwTreeId);
treeViewer.setRendererType(rendererType);
treeViewer.setFacetName(facetName);
treeViewer.setVarName(varName);
treeViewer.setSourceTree(sourceTree);
treeViewer.setShowRootNode(showRootNode);
treeViewer.setShowLines(showLines);
treeViewer.setAddStyleClassForLink(addStyleClassForLink);
}
}
@SuppressWarnings("unchecked")
private Collection<String> getCollectionValue(
String propertyName, Collection<String> collection) {
if (collection != null) {
return collection;
}
Collection<String> result = null;
ValueExpression expression = getValueExpression(propertyName);
if (expression != null) {
FacesContext ctx = FacesContext.getCurrentInstance();
Object value = expression.getValue(ctx.getELContext());
if (value != null) {
if (value instanceof Collection) {
// Unchecked cast to Collection<String>
return (Collection<String>) value;
}
result = toList(propertyName, expression, value);
}
}
return result == null ? Collections.<String>emptyList() : result;
}
public void apply(FaceletContext context, UIComponent parent)
throws IOException, FacesException, ELException {
if (parent == null || !(parent instanceof EditableValueHolder))
throw new TagException(tag, "Parent not an instance of EditableValueHolder: " + parent);
if (parent.getParent() == null) {
EditableValueHolder editableValueHolder = (EditableValueHolder) parent;
ValueExpression valueExpression = null;
Validator validator = null;
if (binding != null) {
valueExpression =
binding.getValueExpression(context, javax.faces.validator.Validator.class);
validator = (Validator) valueExpression.getValue(context);
}
if (validator == null) {
validator = createValidator(context);
if (valueExpression != null) valueExpression.setValue(context, validator);
}
if (validator == null) throw new TagException(tag, "No Validator was created");
if (nextHandler instanceof CompositeFaceletHandler) {
addParameters(context, (CompositeFaceletHandler) nextHandler);
} else if (nextHandler instanceof MessageParameterTagHandler) {
addParameter(context, (MessageParameterTagHandler) nextHandler);
}
setAttributes(context, validator);
editableValueHolder.addValidator(validator);
}
}
public static Object evaluateValueExpression(ValueExpression expression, ELContext elContext) {
if (expression.isLiteralText()) {
return expression.getExpressionString();
} else {
return expression.getValue(elContext);
}
}
public double getMaxX() {
if (_maxX != null) return _maxX;
ValueExpression ve = getValueExpression("maxX");
return ve != null
? (java.lang.Double) ve.getValue(getFacesContext().getELContext())
: java.lang.Double.MIN_VALUE;
}
@Test
public void testBug50790b() throws Exception {
ValueExpression ve =
factory.createValueExpression(
context, "#{beanA.name.contains(beanAA.name)}", java.lang.Boolean.class);
Boolean actual = (Boolean) ve.getValue(context);
assertEquals(Boolean.FALSE, actual);
}
protected Object evaluate(String ref) throws Exception {
ValueExpression ve =
this.getFacesContext()
.getApplication()
.getExpressionFactory()
.createValueExpression(getFacesContext().getELContext(), ref, Object.class);
return ve.getValue(this.getFacesContext().getELContext());
}
public void testLegacyVariableResolversWithUnifiedEL() {
ValueExpression ve1 =
application
.getExpressionFactory()
.createValueExpression(
getFacesContext().getELContext(), "#{customVRTest1}", Object.class);
Object result = ve1.getValue(getFacesContext().getELContext());
assertTrue(result.equals("TestVariableResolver"));
ValueExpression ve2 =
application
.getExpressionFactory()
.createValueExpression(
getFacesContext().getELContext(), "#{customVRTest2}", Object.class);
result = ve2.getValue(getFacesContext().getELContext());
assertTrue(result.equals("TestOldVariableResolver"));
}
protected void setProperty(FacesBean bean, PropertyKey key, ValueExpression expression) {
if (expression == null) return;
if (expression.isLiteralText()) {
bean.setProperty(key, expression.getValue(null));
} else {
bean.setValueExpression(key, expression);
}
}
public void testLegacyPropertyResolversWithUnifiedEL() {
ValueExpression ve1 =
application
.getExpressionFactory()
.createValueExpression(
getFacesContext().getELContext(), "#{mixedBean.customPRTest1}", Object.class);
Object result = ve1.getValue(getFacesContext().getELContext());
assertTrue(result.equals("TestPropertyResolver"));
ValueExpression ve2 =
application
.getExpressionFactory()
.createValueExpression(
getFacesContext().getELContext(), "#{mixedBean.customPRTest2}", Object.class);
result = ve2.getValue(getFacesContext().getELContext());
assertTrue(result.equals("PropertyResolverTestImpl"));
}
@Test
public void testBugPrimitives() throws Exception {
MethodExpression me =
factory.createMethodExpression(context, "${beanA.setValLong(5)}", null, null);
me.invoke(context, null);
ValueExpression ve =
factory.createValueExpression(context, "#{beanA.valLong}", java.lang.String.class);
assertEquals("5", ve.getValue(context));
}
protected void beforeEncode() {
ValueExpression expansionStateExpression = getValueExpression("expansionState");
if (expansionStateExpression != null) {
FacesContext context = getFacesContext();
ExpansionState newExpansionState =
(ExpansionState) expansionStateExpression.getValue(context.getELContext());
if (newExpansionState != null) setExpansionState(newExpansionState);
}
}
