Examples of javax.portlet.faces.BridgeException

javax.portlet.faces.BridgeException
Generic exception thrown when the bridge encounters an unexpected error. The message returned in this exeception should contain the details of the specific problem.

  public void init(PortletConfig config)
    throws BridgeException
  {
    //TODO: Should we throw an exception if the bridge is already initialized?
    if (mInitialized)
      throw new BridgeException("Bridge already initialized.");
    
    mPortletConfig = config;
    PortletContext portletContext = mPortletConfig.getPortletContext();


    // get preserveActionParams and excludedAttributes configuration settings.
    mPreserveActionParams = (Boolean) portletContext.getAttribute(Bridge.BRIDGE_PACKAGE_PREFIX + mPortletConfig.getPortletName() + 
                                            "." + Bridge.PRESERVE_ACTION_PARAMS);
    
    mExcludedRequestAttributes = (List <String>) portletContext.getAttribute(Bridge.BRIDGE_PACKAGE_PREFIX + mPortletConfig.getPortletName() + 
                                            "." + Bridge.EXCLUDED_REQUEST_ATTRIBUTES);
    if (mExcludedRequestAttributes != null)
    {
      // copy the list as we may be adding to it and don't want to worry that this might be immutable
      mExcludedRequestAttributes = new ArrayList(mExcludedRequestAttributes);     
    }
    else
    {
      // Otherwise create an empty list
      mExcludedRequestAttributes = new ArrayList(5);
    }
   
    // Read excludedAttributes that may be defined in any face-config.xml
    readExcludedAttributesFromFacesConfig(portletContext, mExcludedRequestAttributes);


    // Set up the synchronziation object for the RequestScopeMap as we don't
    // want to sync on the PortletContext because its too broad. Note:
    // needed
    // because we not only need to sync the Map but also creating the Map
    // and
    // putting it in the PortletContext. Hence the sync object allows us
    // to limit syncronizing the PortletContext to once per portlet (init
    // time);
    
    // TODO: What about synching on a static object or using a class lock?
    //       Perhaps even the LRUMap itself if said map is a singleton?
    synchronized (portletContext)
    {
      Object lock = portletContext.getAttribute(REQUEST_SCOPE_LOCK);
      if (lock == null)
      {
        portletContext.setAttribute(REQUEST_SCOPE_LOCK, new Object());
      }
    }


    // Add self as ELContextListener to the Faces App so we can add the
    // portletConfig to any newly created contexts.
    ApplicationFactory appFactory = 
      (ApplicationFactory) FactoryFinder.getFactory(FactoryFinder.APPLICATION_FACTORY);
    Application app = appFactory.getApplication();
    app.addELContextListener(this);


    // Process and cache the FacesServlet mappings for use by
    // ExternalContext
    WebConfigurationProcessor webConfig = new WebConfigurationProcessor(portletContext);
    mFacesMappings = webConfig.getFacesMappings();
    if (mFacesMappings == null || mFacesMappings.size() == 0)
    {
      throw new BridgeException("BridgeImpl.init(): unable to determine Faces servlet web.xml mapping.");
    }
    
    // remember that init() has been called so can test in other methods.
    mInitialized = true;

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    {
      context.getExternalContext().log("Exception thrown in doFacesRequest:action", e);
      if (!(e instanceof BridgeException))
      {
        Throwable rootCause = e.getCause();
        throw new BridgeException(e.getMessage(), rootCause);
      }
      else
      {
        throw (BridgeException) e;
      }

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      context.getExternalContext().log("Exception thrown in doFacesRequest:render", e);
      if (!(e instanceof BridgeException))
      {
        Throwable rootCause = e.getCause();
        throw new BridgeException(e.getMessage(), rootCause);
      }
      else
      {
        throw (BridgeException) e;
      }

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      return mFacesContextFactory;
    }
    catch (FacesException e)
    {
      Throwable rootCause = e.getCause();
      throw new BridgeException(e.getMessage(), rootCause);
    }
  }

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      return mLifecycle;
    }
    catch (FacesException e)
    {
      Throwable rootCause = e.getCause();
      throw new BridgeException(e.getMessage(), rootCause);
    }
  }

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  public void init(PortletConfig config)
    throws BridgeException
  {
    //TODO: Should we throw an exception if the bridge is already initialized?
    if (mInitialized)
      throw new BridgeException("Bridge already initialized.");


    mPortletConfig = config;
    PortletContext portletContext = mPortletConfig.getPortletContext();
    
    // See if the bridge should log informational messages
    mDebugLoggingEnabled = (Boolean) portletContext.getAttribute(Bridge.BRIDGE_PACKAGE_PREFIX + mPortletConfig.getPortletName() + 
                                              "." + BridgeImpl.LOGGING_ENABLED);
    if (mDebugLoggingEnabled == null)  mDebugLoggingEnabled = Boolean.FALSE;
    
    // get bridgeEventHandler, processPublicRenderParameterHandler, preserveActionParams, excludedAttributes configuration settings.
    mEventHandler = (BridgeEventHandler) portletContext.getAttribute(Bridge.BRIDGE_PACKAGE_PREFIX + mPortletConfig.getPortletName() + 
                                              "." + Bridge.BRIDGE_EVENT_HANDLER);
    
    mProcessPRPHandler = (BridgePublicRenderParameterHandler) portletContext.getAttribute(Bridge.BRIDGE_PACKAGE_PREFIX + mPortletConfig.getPortletName() + 
                                              "." + Bridge.BRIDGE_PUBLIC_RENDER_PARAMETER_HANDLER);
    mPreserveActionParams = 
        (Boolean) portletContext.getAttribute(Bridge.BRIDGE_PACKAGE_PREFIX + mPortletConfig.getPortletName() + 
                                              "." + Bridge.PRESERVE_ACTION_PARAMS);
    
    mExcludedRequestAttributes = (List<String>) portletContext.getAttribute(Bridge.BRIDGE_PACKAGE_PREFIX + mPortletConfig.getPortletName() +
                                                      "." + Bridge.EXCLUDED_REQUEST_ATTRIBUTES);
    if (mExcludedRequestAttributes != null)
    {
      // copy the list as we may be adding to it and don't want to worry that this might be immutable
      mExcludedRequestAttributes = new ArrayList(mExcludedRequestAttributes);
    }
    else
    {
      // Otherwise create an empty list
      mExcludedRequestAttributes = new ArrayList(5);
    }
    
    // acquire any config information in faces-config.xml 
    processFacesConfiguration(portletContext);


    // Set up the synchronziation object for the RequestScopeMap as we don't
    // want to sync on the PortletContext because its too broad. Note:
    // needed
    // because we not only need to sync the Map but also creating the Map
    // and
    // putting it in the PortletContext. Hence the sync object allows us
    // to limit syncronizing the PortletContext to once per portlet (init
    // time);


    // TODO: What about synching on a static object or using a class lock?
    //       Perhaps even the LRUMap itself if said map is a singleton?
    synchronized (portletContext)
    {
      Object lock = portletContext.getAttribute(REQUEST_SCOPE_LOCK);
      if (lock == null)
      {
        portletContext.setAttribute(REQUEST_SCOPE_LOCK, new Object());
      }
    }
    
    // Wrapped desired Application with our own to override createComponent and
    // insert our NamingContainerUIViewRoot component.  This was done through
    // configuration via the META-INF/service/javax.faces.application.ApplicationFactory
    
    // Add self as ELContextListener to the Faces App so we can add the
    // portletConfig to any newly created contexts.    
    ((ApplicationFactory)FactoryFinder.getFactory(FactoryFinder.APPLICATION_FACTORY))
        .getApplication().addELContextListener(this);




    // Process and cache the FacesServlet mappings for use by
    // ExternalContext
    WebConfigurationProcessor webConfig = new WebConfigurationProcessor(portletContext);
    mFacesMappings = webConfig.getFacesMappings();
    if (mFacesMappings == null || mFacesMappings.size() == 0)
    {
      throw new BridgeException("BridgeImpl.init(): unable to determine Faces servlet web.xml mapping.");
    }


    // Set defaults for each mode's last active view session attribute
    mDefaultViewIdMap = (Map<String,String>) portletContext.getAttribute(
                                Bridge.BRIDGE_PACKAGE_PREFIX + mPortletConfig.getPortletName()

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      if (mDebugLoggingEnabled.booleanValue()) 
        mPortletConfig.getPortletContext().log("Exception thrown in doFacesRequest:action", e);
      
      if (!(e instanceof BridgeException))
      {
        e =  new BridgeException(e);
      }
      throw (BridgeException) e;
    }
    finally
    {

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      if (!mDebugLoggingEnabled.booleanValue())
        mPortletConfig.getPortletContext().log("Exception thrown in doFacesRequest:event", e);
      
      if (!(e instanceof BridgeException))
      {
        e = new BridgeException(e);
      }
      throw (BridgeException) e;
    }
    finally
    {

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    catch (Exception e)
    {     
      // now rethrow the exception as a BridgeException
      if (!(e instanceof BridgeException))
      {
        e =  new BridgeException(e);
      }
      throw (BridgeException) e;
    }
    finally
    {

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      }
      catch (Exception e)
      {
        if (!(e instanceof BridgeException))
        {
          e = new BridgeException(e);
        }
        throw (BridgeException) e;
      }
    }


    // Otherwise this is a Faces resource
    
    // must wait until after init to get at the session
    // since view mode mapping must always exist -- check it
    StringBuffer keyBuf = new StringBuffer(30);
    String key = keyBuf.append(Bridge.VIEWID_HISTORY).append(".view").toString();
    if (request.getPortletSession().getAttribute(key) == null)
    {
      initViewHistoryDefaults(request.getPortletSession(), mDefaultViewIdMap);
    }
    


    // Set the PortletName for use throughout this request to read portlet specific context attrs
    request.setAttribute(PORTLET_NAME_ATTRIBUTE, mPortletConfig.getPortletName());
    
    // Set the WriteBehindResponse the ViewHandler should use
    if (mWriteBehindResourceResponseWrapper != null)
    {
      request.setAttribute(BridgeImpl.WRITE_BEHIND_RESPONSE, mWriteBehindResourceResponseWrapper);
    }




    // Set the FacesServletMapping attribute so the ExternalContext can
    // pick it up and use it to reverse map viewIds to paths
    if (mFacesMappings != null)
    {
      request.setAttribute(PortletExternalContextImpl.FACES_MAPPING_ATTRIBUTE, mFacesMappings);
    }


    // cache names of existing request attributes so can exclude them
    // from being saved in the bridge's request scope. Note: this is done
    // before
    // acquiring the FacesContext because its possible (though unlikely)
    // the application has inserted itself in this process and sets up
    // needed request attributes.
    List<String> preExistingAttributes = getRequestAttributes(request);


    FacesContext context = null;
    String scopeId = null;
    try
    {
      // Get the FacesContext instance for this request
      Lifecycle lifecycle = getLifecycle();
      context = getFacesContext(request, response, lifecycle, null);
      ExternalContext extCtx = context.getExternalContext();


      // Use request from ExternalContext in case its been wrapped by an
      // extension
      ResourceRequest extRequest = (ResourceRequest) extCtx.getRequest();
      
      // getting the scopeId is delayed until after getting the FacesContext
      // because a resource request could be as a result of an embedded iFrame
      // i.e. a child scope of the original render -- in this case don't use the render
      // scope but the correct one contained within it
      scopeId = getResourceRequestScopeId(extCtx, request);


      doFacesRender(request, response, context, lifecycle, scopeId, preExistingAttributes);
    }
    catch (Exception e)
    {
      if (!mDebugLoggingEnabled.booleanValue())
        context.getExternalContext().log("Exception thrown in doFacesRequest:resource", e);
      
      if (!(e instanceof BridgeException))
      {
        e = new BridgeException(e);
      }
      throw (BridgeException) e;
    }
    finally
    {

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