public void execute(Event<UIPortlet<S, C>> event) throws Exception {
UIPortlet<S, C> uiPortlet = event.getSource();
PortalRequestContext prcontext = (PortalRequestContext) event.getRequestContext();
// set the public render parameters from the request before creating the invocation
HttpServletRequest request = prcontext.getRequest();
setupPublicRenderParams(uiPortlet, request.getParameterMap());
// set the navigational state
String navState =
prcontext.getRequestParameter(ExoPortletInvocationContext.NAVIGATIONAL_STATE_PARAM_NAME);
if (navState != null) {
uiPortlet.setNavigationalState(ParametersStateString.create(navState));
}
//
ActionInvocation actionInvocation = uiPortlet.create(ActionInvocation.class, prcontext);
if (actionInvocation == null) {
return;
}
//
PortletInvocationResponse portletResponse = uiPortlet.invoke(actionInvocation);
// deal with potential portlet context modifications
ExoPortletInstanceContext instanceCtx =
(ExoPortletInstanceContext) actionInvocation.getInstanceContext();
if (instanceCtx.getModifiedContext() != null) {
StatefulPortletContext<C> updatedCtx =
(StatefulPortletContext<C>) instanceCtx.getModifiedContext();
C portletState = uiPortlet.getModifiedState(updatedCtx);
uiPortlet.update(portletState);
} else {
// todo: fix me as this shouldn't probably be done only for the WSRP case
PortletContext clonedContext = instanceCtx.getClonedContext();
if (clonedContext != null) {
C state = uiPortlet.getClonedState(clonedContext);
uiPortlet.update(state);
}
}
if (portletResponse instanceof UpdateNavigationalStateResponse) {
handleUpdateNavigationalStateResponse(
(UpdateNavigationalStateResponse) portletResponse, uiPortlet, prcontext);
} else if (portletResponse instanceof HTTPRedirectionResponse) {
handleRedirectionResponse(
(HTTPRedirectionResponse) portletResponse, prcontext.getResponse());
prcontext.setResponseComplete(true);
} else if (portletResponse instanceof ErrorResponse) {
handleErrorResponse((ErrorResponse) portletResponse);
} else if (portletResponse instanceof SecurityResponse) {
handleSecurityResponse((SecurityResponse) portletResponse);
} else {
throw new Exception(
"Unexpected response type ["
+ portletResponse
+ "]. Expected an UpdateNavigationResponse"
+ ", a HTTPRedirectionResponse or an ErrorResponse.");
}
}
public void execute(Event<UIPortlet> event) throws Exception {
UIPortlet uiPortlet = event.getSource();
uiPortlet.setNavigationalState(null);
// set the public params
HttpServletRequest request = event.getRequestContext().getRequest();
setupPublicRenderParams(uiPortlet, request.getParameterMap());
// set render params
String navState =
event
.getRequestContext()
.getRequestParameter(ExoPortletInvocationContext.NAVIGATIONAL_STATE_PARAM_NAME);
if (navState != null) {
uiPortlet.setNavigationalState(ParametersStateString.create(navState));
}
}
/**
* This method is called when the javax.portlet.Event is supported by the current portlet stored
* in the Portlet Caontainer
*
* <p>The processEvent() method can also generates IPC events and hence the portal itself will
* call the ProcessEventsActionListener once again
*/
public static <S, C extends Serializable, I> List<javax.portlet.Event> processEvent(
UIPortlet<S, C> uiPortlet, javax.portlet.Event event) {
log.trace("Process Event: " + event.getName() + " for portlet: " + uiPortlet.getState());
try {
PortalRequestContext context =
(PortalRequestContext) WebuiRequestContext.getCurrentInstance();
//
EventInvocation eventInvocation = uiPortlet.create(EventInvocation.class, context);
//
eventInvocation.setName(event.getQName());
eventInvocation.setPayload(event.getValue());
//
PortletInvocationResponse piResponse = uiPortlet.invoke(eventInvocation);
//
ExoPortletInstanceContext instanceCtx =
(ExoPortletInstanceContext) eventInvocation.getInstanceContext();
if (instanceCtx.getModifiedContext() != null) {
StatefulPortletContext<C> updatedCtx =
(StatefulPortletContext<C>) instanceCtx.getModifiedContext();
C portletState = updatedCtx.getState();
uiPortlet.update(portletState);
}
// todo: handle the error response better than this.
if (!(piResponse instanceof UpdateNavigationalStateResponse)) {
if (piResponse instanceof ErrorResponse) {
ErrorResponse errorResponse = (ErrorResponse) piResponse;
throw (Exception) errorResponse.getCause();
} else {
throw new Exception(
"Unexpected response type ["
+ piResponse
+ "]. Expected a UpdateNavigationResponse or an ErrorResponse.");
}
}
UpdateNavigationalStateResponse navResponse = (UpdateNavigationalStateResponse) piResponse;
//
/*
* Update the portlet window state according to the action output
* information
*
* If the current node is displaying a usual layout page, also tells the
* page which portlet to render or not when the state is maximized
*/
WindowState state = new WindowState(getWindowStateOrDefault(navResponse));
setNextState(uiPortlet, state);
// update the portlet with the next mode to display
PortletMode mode = new PortletMode(getPortletModeOrDefault(navResponse));
setNextMode(uiPortlet, mode);
StateString navState = navResponse.getNavigationalState();
if (navState != null) {
uiPortlet.setNavigationalState(navResponse.getNavigationalState());
}
setupPublicRenderParams(uiPortlet, navResponse.getPublicNavigationalStateUpdates());
// TODO: (mwringe) add this to the UpdateNavigationStateResponse.Event class instead of here
class PortletEvent implements javax.portlet.Event {
QName qName;
Serializable value;
public PortletEvent(QName qName, Serializable value) {
this.qName = qName;
this.value = value;
}
public String getName() {
return qName.getLocalPart();
}
public QName getQName() {
return qName;
}
public Serializable getValue() {
return value;
}
}
List<UpdateNavigationalStateResponse.Event> nsEvents = navResponse.getEvents();
List<javax.portlet.Event> events = new ArrayList<javax.portlet.Event>(nsEvents.size());
if (nsEvents != null && !nsEvents.isEmpty()) {
for (UpdateNavigationalStateResponse.Event nsEvent : nsEvents) {
javax.portlet.Event portletEvent =
new PortletEvent(nsEvent.getName(), nsEvent.getPayload());
events.add(portletEvent);
}
}
return events;
} catch (Exception e) {
log.error("Problem while processesing event for the portlet: " + uiPortlet.getState(), e);
}
return null;
}
public void execute(Event<UIPortlet<S, C>> event) throws Exception {
UIPortlet<S, C> uiPortlet = event.getSource();
log.trace("Serve Resource for portlet: " + uiPortlet.getPortletContext());
String resourceId = null;
//
PortalRequestContext context = (PortalRequestContext) event.getRequestContext();
HttpServletResponse response = context.getResponse();
//
try {
// Set the NavigationalState
String navState =
context.getRequestParameter(ExoPortletInvocationContext.NAVIGATIONAL_STATE_PARAM_NAME);
if (navState != null) {
uiPortlet.setNavigationalState(ParametersStateString.create(navState));
}
//
ResourceInvocation resourceInvocation = uiPortlet.create(ResourceInvocation.class, context);
// set the resourceId to be used in case of a problem
resourceId = resourceInvocation.getResourceId();
//
PortletInvocationResponse portletResponse = uiPortlet.invoke(resourceInvocation);
//
int statusCode;
MultiValuedPropertyMap<String> transportHeaders;
String contentType;
String charset;
Object content;
if (!(portletResponse instanceof ContentResponse)) {
if (portletResponse instanceof ErrorResponse) {
ErrorResponse errorResponse = (ErrorResponse) portletResponse;
Throwable cause = errorResponse.getCause();
if (cause != null) {
log.trace("Got error response from portlet", cause);
} else if (errorResponse.getMessage() != null) {
log.trace("Got error response from portlet:" + errorResponse.getMessage());
} else {
log.trace("Got error response from portlet");
}
} else {
log.trace(
"Unexpected response type ["
+ portletResponse
+ "]. Expected a ContentResponse or an ErrorResponse.");
}
statusCode = HttpServletResponse.SC_INTERNAL_SERVER_ERROR;
contentType = null;
charset = null;
transportHeaders = null;
content = null;
} else {
//
ContentResponse piResponse = (ContentResponse) portletResponse;
ResponseProperties properties = piResponse.getProperties();
transportHeaders = properties != null ? properties.getTransportHeaders() : null;
// Look at status code if there is one and honour it
String status =
transportHeaders != null
? transportHeaders.getValue(ResourceResponse.HTTP_STATUS_CODE)
: null;
if (status != null) {
try {
statusCode = Integer.parseInt(status);
} catch (NumberFormatException e) {
statusCode = HttpServletResponse.SC_INTERNAL_SERVER_ERROR;
}
} else {
statusCode = HttpServletResponse.SC_OK;
}
//
contentType = piResponse.getContentType();
charset = piResponse.getEncoding();
//
log.trace(
"Try to get a resource of type: "
+ contentType
+ " for the portlet: "
+ uiPortlet.getPortletContext());
if (piResponse.getChars() != null) {
content = piResponse.getChars();
} else if (piResponse.getBytes() != null) {
content = piResponse.getBytes();
} else {
content = null;
}
}
//
response.setStatus(statusCode);
// Set content type if any
if (contentType != null) {
response.setContentType(contentType);
}
// Set encoding
if (charset != null) {
response.setCharacterEncoding(charset);
}
// Send headers if any
if (transportHeaders != null) {
sendHeaders(transportHeaders, context);
}
// Send body if any
if (content instanceof String) {
context.getWriter().write((String) content);
} else if (content instanceof byte[]) {
byte[] bytes = (byte[]) content;
response.setContentLength(bytes.length);
OutputStream stream = response.getOutputStream();
try {
stream.write(bytes);
} finally {
Safe.close(stream);
}
}
//
response.flushBuffer();
} catch (Exception e) {
if (!e.getClass().toString().contains("ClientAbortException")) {
log.error(
"Problem while serving resource "
+ (resourceId != null ? resourceId : "")
+ " for the portlet: "
+ uiPortlet.getPortletContext().getId(),
e);
}
} finally {
/** The resource method does not need to go through the render phase */
event.getRequestContext().setResponseComplete(true);
}
}
private void handleUpdateNavigationalStateResponse(
UpdateNavigationalStateResponse navStateResponse,
UIPortlet<S, C> uiPortlet,
PortalRequestContext prcontext)
throws Exception {
/*
* Update the portlet window state according to the action output
* information
*
* If the current node is displaying a usual layout page, also tells the
* page which portlet to render or not when the state is maximized
*/
// Note: we should only update the WindowState if the
// UpdateNavigationalStateResponse.getWindowState is not null,
// otherwise it means the WindowState has not changed and we should use the current value.
if (navStateResponse.getWindowState() != null) {
WindowState state = new WindowState(getWindowStateOrDefault(navStateResponse));
setNextState(uiPortlet, state);
}
// update the portlet with the next mode to display
// Note: we should only update the Mode if the UpdateNavigationalStateResponse.getMode is not
// null,
// otherwise it means the mode has not changed and we should use the current value.
if (navStateResponse.getMode() != null) {
PortletMode mode = new PortletMode(getPortletModeOrDefault(navStateResponse));
setNextMode(uiPortlet, mode);
}
/*
* Cache the render parameters in the UI portlet component to handle the
* navigational state. Each time a portlet is rendered (except using
* directly a RenderURL) those parameters are added to the portlet request
* to preserve the portlet state among all the portal clicks
*/
//
StateString navigationalState = navStateResponse.getNavigationalState();
if (navigationalState != null) {
uiPortlet.setNavigationalState(navigationalState);
}
// update the public render parameters with the changes from the invocation
setupPublicRenderParams(uiPortlet, navStateResponse.getPublicNavigationalStateUpdates());
/*
* Handle the events returned by the action output and broadcast a new UI
* event to the ProcessEventsActionListener that will then target the
* portlet container service directly
*/
// TODO: (mwringe) add this to the UpdateNavigationStateResponse.Event class instead of here
class PortletEvent implements javax.portlet.Event {
QName qName;
Serializable value;
public PortletEvent(QName qName, Serializable value) {
this.qName = qName;
this.value = value;
}
public String getName() {
return qName.getLocalPart();
}
public QName getQName() {
return qName;
}
public Serializable getValue() {
return value;
}
}
List<UpdateNavigationalStateResponse.Event> nsEvents = navStateResponse.getEvents();
List<javax.portlet.Event> events = new ArrayList<javax.portlet.Event>(nsEvents.size());
if (nsEvents != null && !nsEvents.isEmpty()) {
for (UpdateNavigationalStateResponse.Event nsEvent : nsEvents) {
if (uiPortlet.supportsPublishingEvent(nsEvent.getName())) {
javax.portlet.Event portletEvent =
new PortletEvent(nsEvent.getName(), nsEvent.getPayload());
events.add(portletEvent);
}
}
}
if (events != null) {
prcontext.setAttribute(PORTLET_EVENTS, new EventsWrapper(events));
uiPortlet.createEvent("ProcessEvents", Phase.PROCESS, prcontext).broadcast();
}
}
