public DelayedInitPartialResponseWriter(PartialViewContextImpl ctx) {
super(null);
this.ctx = ctx;
ExternalContext extCtx = ctx.ctx.getExternalContext();
extCtx.setResponseContentType("text/xml");
extCtx.setResponseCharacterEncoding(extCtx.getRequestCharacterEncoding());
}
private PartialResponseWriter createPartialResponseWriter() {
ExternalContext extContext = ctx.getExternalContext();
String encoding = extContext.getRequestCharacterEncoding();
extContext.setResponseCharacterEncoding(encoding);
ResponseWriter responseWriter = null;
Writer out = null;
try {
out = extContext.getResponseOutputWriter();
} catch (IOException ioe) {
if (LOGGER.isLoggable(Level.SEVERE)) {
LOGGER.log(Level.SEVERE, ioe.toString(), ioe);
}
}
if (out != null) {
responseWriter = ctx.getRenderKit().createResponseWriter(out, "text/xml", encoding);
}
if (responseWriter instanceof PartialResponseWriter) {
return (PartialResponseWriter) responseWriter;
} else {
return new PartialResponseWriter(responseWriter);
}
}
/**
* @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();
}
