// Copyright 2005 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.tapestry.portlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Date;
import org.apache.tapestry.IMarkupWriter;
import org.apache.tapestry.IPage;
import org.apache.tapestry.IRequestCycle;
import org.apache.tapestry.Tapestry;
import org.apache.tapestry.TapestryUtils;
import org.apache.tapestry.asset.AssetFactory;
import org.apache.tapestry.markup.MarkupWriterSource;
import org.apache.tapestry.services.ResponseBuilder;
import org.apache.tapestry.services.impl.DefaultResponseBuilder;
import org.apache.tapestry.util.ContentType;
import org.apache.tapestry.util.PageRenderSupportImpl;
import org.apache.tapestry.web.WebResponse;
/**
* The guts of rendering a page as a portlet response; used by
* {@link org.apache.tapestry.portlet.RenderService} and
* {@link org.apache.tapestry.portlet.PortletHomeService}.
*
* @author Howard M. Lewis Ship
* @since 4.0
*/
public class PortletRendererImpl implements PortletRenderer
{
private WebResponse _response;
private MarkupWriterSource _markupWriterSource;
private AssetFactory _assetFactory;
private String _applicationId;
public void renderPage(IRequestCycle cycle, String pageName)
throws IOException
{
cycle.activate(pageName);
IPage page = cycle.getPage();
ContentType contentType = page.getResponseContentType();
PrintWriter printWriter = _response.getPrintWriter(contentType);
IMarkupWriter writer = _markupWriterSource.newMarkupWriter(printWriter,
contentType);
String namespace = _response.getNamespace();
IMarkupWriter nested = writer.getNestedWriter();
ResponseBuilder builder = new DefaultResponseBuilder(nested);
PageRenderSupportImpl support = new PageRenderSupportImpl(
_assetFactory, namespace, null, builder);
TapestryUtils.storePageRenderSupport(cycle, support);
builder.renderResponse(cycle);
String id = "Tapestry Portlet " + _applicationId + " " + namespace;
writer.comment("BEGIN " + id);
writer.comment("Page: " + page.getPageName());
writer.comment("Generated: " + new Date());
writer.comment("Framework version: " + Tapestry.VERSION);
support.writeBodyScript(writer, cycle);
// nested.close();
support.writeInitializationScript(writer);
writer.comment("END " + id);
writer.close();
// TODO: Trap errors and do some error reporting here?
}
public void setMarkupWriterSource(MarkupWriterSource markupWriterSource)
{
_markupWriterSource = markupWriterSource;
}
public void setResponse(WebResponse response)
{
_response = response;
}
public void setAssetFactory(AssetFactory assetFactory)
{
_assetFactory = assetFactory;
}
public void setApplicationId(String applicationId)
{
_applicationId = applicationId;
}
}