CopletSourceFactory.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.cocoon.portal.source;

import java.io.IOException;
import java.net.MalformedURLException;
import java.util.Map;

import org.apache.avalon.framework.context.Context;
import org.apache.avalon.framework.context.ContextException;
import org.apache.avalon.framework.context.Contextualizable;
import org.apache.avalon.framework.logger.AbstractLogEnabled;
import org.apache.avalon.framework.service.ServiceException;
import org.apache.avalon.framework.service.ServiceManager;
import org.apache.avalon.framework.service.Serviceable;
import org.apache.avalon.framework.thread.ThreadSafe;
import org.apache.cocoon.portal.PortalService;
import org.apache.cocoon.portal.coplet.CopletInstanceData;
import org.apache.excalibur.source.Source;
import org.apache.excalibur.source.SourceException;
import org.apache.excalibur.source.SourceFactory;

/**
 * The source factory for the coplet sources
 *
 * @author <a href="mailto:cziegeler@s-und-n.de">Carsten Ziegeler</a>
 * @author <a href="mailto:volker.schmitt@basf-it-services.com">Volker Schmitt</a>
 * 
 * @version CVS $Id$
 */
public class CopletSourceFactory     
    extends AbstractLogEnabled
    implements SourceFactory, Serviceable, ThreadSafe, Contextualizable {

    protected ServiceManager manager;
    protected Context context;
    
    /* (non-Javadoc)
     * @see org.apache.avalon.framework.service.Serviceable#service(org.apache.avalon.framework.service.ServiceManager)
     */
    public void service(ServiceManager serviceManager) throws ServiceException {
        this.manager = serviceManager;
    }

    /* (non-Javadoc)
     * @see org.apache.avalon.framework.context.Contextualizable#contextualize(org.apache.avalon.framework.context.Context)
     */
    public void contextualize(Context context) throws ContextException {
        this.context = context;
    }
    
	/**
	 * @see org.apache.excalibur.source.SourceFactory#getSource(String, Map)
	 */
	public Source getSource(String location, Map parameters)
		throws MalformedURLException, IOException {
        
        String uri = location;
        String protocol = null;
        
        // remove the protocol
        int position = location.indexOf(':') + 1;
        if (position != 0) {
            protocol = location.substring(0, position);
            location = location.substring(position+2);
        }
        PortalService service = null;
        try {
            service = (PortalService)this.manager.lookup(PortalService.ROLE);
            CopletInstanceData coplet = service.getComponentManager().getProfileManager().getCopletInstanceData(location);
            if ( coplet == null ) {
                throw new IOException("Unable to get coplet for " + location);
            }
            CopletSource copletSource =
                new CopletSource(uri, protocol,
                                 coplet);
            copletSource.contextualize(this.context);
            copletSource.service(this.manager);
            return copletSource;
        } catch (ContextException ce) {
            throw new SourceException("Unable to lookup profile manager.", ce);
        } catch (ServiceException ce) {
            throw new SourceException("Unable to lookup profile manager.", ce);
        } finally {
            this.manager.release(service);
        }
	}

    /**
     * @see org.apache.excalibur.source.SourceFactory#release(Source)
     */
    public void release(Source source) {
        // nothing to do 
    }

}