// Copyright 2006, 2007, 2008, 2009, 2010 The Apache Software Foundation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package org.apache.tapestry5.internal.services;
import java.io.IOException;
import org.apache.tapestry5.internal.structure.Page;
import org.apache.tapestry5.ioc.annotations.Primary;
import org.apache.tapestry5.services.ComponentEventResultProcessor;
import org.apache.tapestry5.services.PageRenderRequestHandler;
import org.apache.tapestry5.services.PageRenderRequestParameters;
import org.apache.tapestry5.services.Traditional;
/**
* Handles a page render request by activating and then rendering the page.
*
* @see org.apache.tapestry5.internal.services.PageRenderDispatcher
*/
@SuppressWarnings("unchecked")
public class PageRenderRequestHandlerImpl implements PageRenderRequestHandler
{
private final RequestPageCache cache;
private final ComponentEventResultProcessor resultProcessor;
private final PageResponseRenderer pageResponseRenderer;
private final PageActivator pageActivator;
public PageRenderRequestHandlerImpl(RequestPageCache cache, @Traditional
@Primary
ComponentEventResultProcessor resultProcessor, PageResponseRenderer pageResponseRenderer,
PageActivator pageActivator)
{
this.cache = cache;
this.resultProcessor = resultProcessor;
this.pageResponseRenderer = pageResponseRenderer;
this.pageActivator = pageActivator;
}
public void handle(PageRenderRequestParameters parameters) throws IOException
{
Page page = cache.get(parameters.getLogicalPageName());
if (pageActivator.activatePage(page.getRootElement().getComponentResources(),
parameters.getActivationContext(), resultProcessor))
return;
if (!parameters.isLoopback())
page.pageReset();
pageResponseRenderer.renderPageResponse(page);
}
}