/*
* 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.util.descriptor;
import java.io.Reader;
import org.apache.commons.digester.Digester;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.jetspeed.om.common.portlet.MutablePortletApplication;
import org.apache.jetspeed.tools.pamanager.rules.JetspeedServicesRuleSet;
import org.apache.jetspeed.tools.pamanager.rules.MetadataRuleSet;
import org.apache.jetspeed.tools.pamanager.rules.PortletRule;
import org.apache.jetspeed.tools.pamanager.rules.UserAttributeRefRuleSet;
/**
* This class is used to load extended MetaData, like that of the Dublin Core,
* into an exsting PortletApplicationDefinition's object graph.
*
* @author <a href="mailto:jford@apache.org">Jeremy Ford </a>
* @author <a href="mailto:weaver@apache.org">Scott T. Weaver</a>
* @version $Id: JetspeedDescriptorUtilities.java,v 1.10 2004/06/08 01:35:01
* dlestrat Exp $
*/
public class ExtendedPortletMetadata
{
protected final static Log log = LogFactory.getLog(ExtendedPortletMetadata.class);
protected Reader extendedMetaData;
protected MutablePortletApplication portletApp;
/**
*
* @param extendedMetaData Reader that contains the extended metadata, usually jetspeed-portlet.xml
* @param portletApp the MutablePortletApplication we are adding the extended metadata to.
*/
public ExtendedPortletMetadata( Reader extendedMetaData, MutablePortletApplication portletApp )
{
this.extendedMetaData = extendedMetaData;
this.portletApp = portletApp;
}
/**
* Performs the actual loading and mapping of the metadata into the PortletApplicationDefinition.
*
*/
public void load() throws MetaDataException
{
boolean result = false;
try
{
Digester digester = new Digester();
digester.setValidating(false);
digester.setNamespaceAware(true);
digester.push(portletApp);
digester.addRuleSet(new MetadataRuleSet("portlet-app/"));
digester.addRuleSet(new JetspeedServicesRuleSet(portletApp));
digester.addRule("portlet-app/portlet/portlet-name", new PortletRule(portletApp));
digester.addRuleSet(new MetadataRuleSet("portlet-app/portlet/"));
digester.addRuleSet(new UserAttributeRefRuleSet(portletApp));
digester.parse(extendedMetaData);
result = true;
}
catch (Throwable t)
{
throw new MetaDataException("Unable to marshall extended metadata. " + t.toString(), t);
}
}
}