/**
* @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();
}
}
/**
* 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());
}
}
}
/**
* @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();
}
