/**
* @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() && !context.getViewRoot().isTransient()) {
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());
}
}
}
