Examples of javax.faces.component.UIViewRoot$ComponentResourceContainer

javax.faces.component.UIViewRoot
Using a stock UIPanel instance may produce undesirable results when UIViewRoot.getFacetsAndChildren(), followed by a call to encodeAll() on each element returned by that iterator.

    private Map<String, List<String>> getViewParameterList(FacesContext context,
            String viewId, Map<String, List<String>> parametersFromArg)
    {


        Map<String, List<String>> viewParameters;
        UIViewRoot viewRoot = context.getViewRoot();
        String currentViewId = viewRoot.getViewId();
        Collection<UIViewParameter> toViewParams = null;
        Collection<UIViewParameter> currentViewParams = ViewMetadata.getViewParameters(viewRoot);


        if (currentViewId.equals(viewId))
        {
            toViewParams = currentViewParams;
        }
        else
        {
            String calculatedViewId = getViewHandlerSupport().calculateViewId(context, viewId);            
            ViewDeclarationLanguage vdl = getViewDeclarationLanguage(context,calculatedViewId);
            ViewMetadata viewMetadata = vdl.getViewMetadata(context, viewId);
            // getViewMetadata() returns null on JSP
            if (viewMetadata != null)
            {
                UIViewRoot viewFromMetaData = viewMetadata.createMetadataView(context);
                toViewParams = ViewMetadata.getViewParameters(viewFromMetaData);
            }
        }


        if (toViewParams == null || toViewParams.isEmpty())

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        Application application = facesContext.getApplication();
        ViewHandler applicationViewHandler = application.getViewHandler();


        Locale currentLocale = null;
        String currentRenderKitId = null;
        UIViewRoot uiViewRoot = facesContext.getViewRoot();
        if (uiViewRoot != null)
        {
            // Remember current locale and renderKitId
            currentLocale = uiViewRoot.getLocale();
            currentRenderKitId = uiViewRoot.getRenderKitId();
        }


        uiViewRoot = (UIViewRoot) application.createComponent(UIViewRoot.COMPONENT_TYPE);


        uiViewRoot.setViewId(calculatedViewId);


        if (currentLocale != null)
        {
            // set old locale
            uiViewRoot.setLocale(currentLocale);
        }
        else
        {
            // calculate locale
            uiViewRoot.setLocale(applicationViewHandler.calculateLocale(facesContext));
        }


        if (currentRenderKitId != null)
        {
            // set old renderKit
            uiViewRoot.setRenderKitId(currentRenderKitId);
        }
        else
        {
            // calculate renderKit
            uiViewRoot.setRenderKitId(applicationViewHandler.calculateRenderKitId(facesContext));
        }


        if (log.isLoggable(Level.FINEST))
            log.finest("Created view " + viewId);
        return uiViewRoot;

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    {
        Application application = facesContext.getApplication();
        ViewHandler applicationViewHandler = application.getViewHandler();
        String renderKitId = applicationViewHandler.calculateRenderKitId(facesContext);
        String calculatedViewId = getViewHandlerSupport().calculateViewId(facesContext, viewId);
        UIViewRoot viewRoot = application.getStateManager().restoreView(facesContext, calculatedViewId, renderKitId);
        return viewRoot;
    }

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    @Override
    protected Object getComponentStateToSave(FacesContext facesContext)
    {
        if (log.isLoggable(Level.FINEST)) log.finest("Entering getComponentStateToSave");


        UIViewRoot viewRoot = facesContext.getViewRoot();
        if (viewRoot.isTransient())
        {
            return null;
        }


        Object serializedComponentStates = viewRoot.processSaveState(facesContext);
        //Locale is a state attribute of UIViewRoot and need not be saved explicitly
        if (log.isLoggable(Level.FINEST)) log.finest("Exiting getComponentStateToSave");
        return serializedComponentStates;
    }

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     */
    @Override
    protected Object getTreeStructureToSave(FacesContext facesContext)
    {
        if (log.isLoggable(Level.FINEST)) log.finest("Entering getTreeStructureToSave");
        UIViewRoot viewRoot = facesContext.getViewRoot();
        if (viewRoot.isTransient())
        {
            return null;
        }
        TreeStructureManager tsm = new TreeStructureManager();
        Object retVal = tsm.buildTreeStructureToSave(viewRoot);

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        if (log.isLoggable(Level.FINEST)) log.finest("Entering restoreTreeStructure");


        RenderKit rk = getRenderKitFactory().getRenderKit(facesContext, renderKitId);
        ResponseStateManager responseStateManager = rk.getResponseStateManager();


        UIViewRoot uiViewRoot;
        if (isSavingStateInClient(facesContext))
        {
            //reconstruct tree structure from request
            Object treeStructure = responseStateManager.getTreeStructureToRestore(facesContext, viewId);
            if (treeStructure == null)

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    @Override
    public UIViewRoot restoreView(FacesContext facesContext, String viewId, String renderKitId)
    {
        if (log.isLoggable(Level.FINEST)) log.finest("Entering restoreView - viewId: "+viewId+" ; renderKitId: "+renderKitId);


        UIViewRoot uiViewRoot = null;
        
        ViewDeclarationLanguage vdl = facesContext.getApplication().
            getViewHandler().getViewDeclarationLanguage(facesContext,viewId);
        StateManagementStrategy sms = null; 
        if (vdl != null)
        {
            sms = vdl.getStateManagementStrategy(facesContext, viewId);
        }
        
        if (sms != null)
        {
            if (log.isLoggable(Level.FINEST)) log.finest("Redirect to StateManagementStrategy: "+sms.getClass().getName());
            
            uiViewRoot = sms.restoreView(facesContext, viewId, renderKitId);
        }
        else
        {
            RenderKit renderKit = getRenderKitFactory().getRenderKit(facesContext, renderKitId);
            ResponseStateManager responseStateManager = renderKit.getResponseStateManager();


            Object state;
            if (isSavingStateInClient(facesContext))
            {
                if (log.isLoggable(Level.FINEST)) log.finest("Restoring view from client");


                state = responseStateManager.getState(facesContext, viewId);
            }
            else
            {
                if (log.isLoggable(Level.FINEST)) log.finest("Restoring view from session");


                Integer serverStateId = getServerStateId((Object[]) responseStateManager.getState(facesContext, viewId));


                state = getSerializedViewFromServletSession(facesContext, viewId, serverStateId);
            }


            if (state != null) {
                Object[] stateArray = (Object[])state;
                TreeStructureManager tsm = new TreeStructureManager();
                uiViewRoot = tsm.restoreTreeStructure(stateArray[0]);


                if (uiViewRoot != null) {
                    facesContext.setViewRoot (uiViewRoot);
                    uiViewRoot.processRestoreState(facesContext, stateArray[1]);
                }
            }            
        }
        if (log.isLoggable(Level.FINEST)) log.finest("Exiting restoreView - "+viewId);

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     * necessary
     */
    @Override
    public Object saveView(FacesContext facesContext)
    {
        UIViewRoot uiViewRoot = facesContext.getViewRoot();
        
        String viewId = uiViewRoot.getViewId();
        ViewDeclarationLanguage vdl = facesContext.getApplication().
            getViewHandler().getViewDeclarationLanguage(facesContext,viewId);
        if (vdl != null)
        {
            StateManagementStrategy sms = vdl.getStateManagementStrategy(facesContext, viewId);
            
            if (sms != null)
            {
                if (log.isLoggable(Level.FINEST)) log.finest("Calling saveView of StateManagementStrategy: "+sms.getClass().getName());
                
                return sms.saveView(facesContext);
            }
        }


        // In StateManagementStrategy.saveView there is a check for transient at
        // start, but the same applies for VDL without StateManagementStrategy,
        // so this should be checked before call parent (note that parent method
        // does not do this check).
        if (uiViewRoot.isTransient())
        {
            return null;
        }


        return super.saveView(facesContext);

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    public void writeState(FacesContext facesContext,
                           SerializedView serializedView) throws IOException
    {
        if (log.isLoggable(Level.FINEST)) log.finest("Entering writeState");


        UIViewRoot uiViewRoot = facesContext.getViewRoot();
        //save state in response (client)
        RenderKit renderKit = getRenderKitFactory().getRenderKit(facesContext, uiViewRoot.getRenderKitId());
        ResponseStateManager responseStateManager = renderKit.getResponseStateManager();


        if (isLegacyResponseStateManager(responseStateManager))
        {
            responseStateManager.writeState(facesContext, serializedView);

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    }


    @Override
    public String getViewState(FacesContext facesContext)
    {
        UIViewRoot uiViewRoot = facesContext.getViewRoot();
        String viewId = uiViewRoot.getViewId();
        ViewDeclarationLanguage vdl = facesContext.getApplication().getViewHandler().getViewDeclarationLanguage(facesContext,viewId);
        if (vdl != null)
        {
            StateManagementStrategy sms = vdl.getStateManagementStrategy(facesContext, viewId);

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