/*
* Copyright 2000-2001,2004 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.jetspeed.portal.portlets;
import java.io.ByteArrayOutputStream;
import java.io.PrintWriter;
import org.apache.ecs.html.Comment;
import org.apache.ecs.ConcreteElement;
import org.apache.ecs.StringElement;
import org.apache.ecs.ElementContainer;
import org.apache.jetspeed.cache.disk.JetspeedDiskCache;
import org.apache.jetspeed.services.logging.JetspeedLogFactoryService;
import org.apache.jetspeed.services.logging.JetspeedLogger;
import org.apache.jetspeed.util.SAXPIFilter;
import org.apache.turbine.util.RunData;
/**
Portlet to output an XML well-formed document without any rendering.
Strips all PIs and XML declaration before outputting content to allow
for inclusion in a wider XML document.
@author <A HREF="mailto:raphael@apache.org">Rapha�l Luta</A>
@version $Id: XMLPortlet.java,v 1.21 2004/02/23 04:03:34 jford Exp $
*/
public class XMLPortlet extends AbstractPortlet
{
/**
* Static initialization of the logger for this class
*/
private static final JetspeedLogger logger = JetspeedLogFactoryService.getLogger(XMLPortlet.class.getName());
/**
Return the PI-stripped XML document wrapped in an ECS ElementContainer
*/
public ConcreteElement getContent( RunData rundata ) {
String myContent = null;
ElementContainer content = new ElementContainer();
// Strip all PIs and XML declaration from the input XML content URL
try {
ByteArrayOutputStream bos= new ByteArrayOutputStream();
String url = JetspeedDiskCache.getInstance().getEntry( getPortletConfig().getURL() ).getURL();
new SAXPIFilter(new PrintWriter(bos),true).print( url );
myContent = bos.toString();
} catch (Exception e) {
logger.error( "Could not parse the following URL: " + this.getPortletConfig().getURL(), e );
return content;
}
// If parsing is OK, wraps content in ECS element
if (myContent!=null) {
content = new ElementContainer();
content.addElement( new Comment( "BEGIN PORTLET" ) );
content.addElement( new StringElement( myContent ) );
content.addElement( new Comment( "END PORTLET" ) );
}
return content;
}
/**
Return the PI-stripped XML document wrapped in an ECS ElementContainer.
Currently same as getContent()
*/
public ConcreteElement getContent(Object params, RunData rundata) {
return getContent( rundata );
}
}