/*
* Copyright 1999-2002,2004 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.cocoon.portal.coplet.impl;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.apache.avalon.framework.activity.Disposable;
import org.apache.avalon.framework.component.Component;
import org.apache.avalon.framework.configuration.Configurable;
import org.apache.avalon.framework.configuration.Configuration;
import org.apache.avalon.framework.configuration.ConfigurationException;
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.ServiceSelector;
import org.apache.avalon.framework.service.Serviceable;
import org.apache.avalon.framework.thread.ThreadSafe;
import org.apache.cocoon.ProcessingException;
import org.apache.cocoon.portal.PortalService;
import org.apache.cocoon.portal.aspect.AspectDataHandler;
import org.apache.cocoon.portal.aspect.AspectDataStore;
import org.apache.cocoon.portal.aspect.AspectDescription;
import org.apache.cocoon.portal.aspect.impl.DefaultAspectDataHandler;
import org.apache.cocoon.portal.aspect.impl.DefaultAspectDescription;
import org.apache.cocoon.portal.coplet.CopletData;
import org.apache.cocoon.portal.coplet.CopletFactory;
import org.apache.cocoon.portal.coplet.CopletInstanceData;
import org.apache.cocoon.portal.coplet.adapter.CopletAdapter;
/**
* This factory is for creating and managing coplet objects
*
* @author <a href="mailto:cziegeler@s-und-n.de">Carsten Ziegeler</a>
*
* @version CVS $Id: DefaultCopletFactory.java,v 1.9 2004/03/05 13:02:11 bdelacretaz Exp $
*/
public class DefaultCopletFactory
extends AbstractLogEnabled
implements Component, ThreadSafe, CopletFactory, Serviceable, Disposable, Configurable {
protected ServiceManager manager;
protected Map coplets = new HashMap();
protected List descriptions = new ArrayList();
protected ServiceSelector storeSelector;
public void prepare(CopletData copletData)
throws ProcessingException {
if ( copletData != null ) {
final String copletName = copletData.getName();
if ( copletName == null ) {
throw new ProcessingException("CopletData "+copletData.getId()+" has no associated name.");
}
Object[] o = (Object[]) this.coplets.get( copletName );
if ( o == null ) {
throw new ProcessingException("CopletDescription with name " + copletName + " not found.");
}
DefaultCopletDescription copletDescription = (DefaultCopletDescription)o[0];
copletData.setDescription( copletDescription );
copletData.setAspectDataHandler((AspectDataHandler)o[1]);
}
}
public void prepare(CopletInstanceData copletInstanceData)
throws ProcessingException {
if ( copletInstanceData != null ) {
final String copletName = copletInstanceData.getName();
if ( copletName == null ) {
throw new ProcessingException("CopletInstanceData "+copletInstanceData.getId()+" has no associated name.");
}
Object[] o = (Object[]) this.coplets.get( copletName );
if ( o == null ) {
throw new ProcessingException("CopletDescription with name " + copletName + " not found.");
}
DefaultCopletDescription copletDescription = (DefaultCopletDescription)o[0];
copletInstanceData.setDescription( copletDescription );
copletInstanceData.setAspectDataHandler((AspectDataHandler)o[2]);
}
}
public CopletInstanceData newInstance(CopletData copletData)
throws ProcessingException {
String name = copletData.getName();
Object[] o = (Object[]) this.coplets.get( name );
if ( o == null ) {
throw new ProcessingException("CopletDescription with name " + name + " not found.");
}
DefaultCopletDescription copletDescription = (DefaultCopletDescription)o[0];
CopletInstanceData instance = new CopletInstanceData();
String id = null;
if ( copletDescription.createId() ) {
// TODO - create unique id
id = name + '-' + System.currentTimeMillis();
}
instance.initialize( name, id );
instance.setDescription( copletDescription );
instance.setAspectDataHandler((AspectDataHandler)o[2]);
instance.setCopletData(copletData);
// now lookup the adapter
final String adapterName = copletData.getCopletBaseData().getCopletAdapterName();
CopletAdapter adapter = null;
ServiceSelector adapterSelector = null;
try {
adapterSelector = (ServiceSelector) this.manager.lookup( CopletAdapter.ROLE + "Selector");
adapter = (CopletAdapter)adapterSelector.select( adapterName );
adapter.init( instance );
adapter.login( instance );
} catch (ServiceException ce) {
throw new ProcessingException("Unable to lookup coplet adapter selector or adaptor.", ce);
} finally {
if ( adapterSelector != null) {
adapterSelector.release( adapter );
}
this.manager.release( adapterSelector );
}
PortalService service = null;
try {
service = (PortalService)this.manager.lookup(PortalService.ROLE);
service.getComponentManager().getProfileManager().register(instance);
} catch (ServiceException ce) {
throw new ProcessingException("Unable to lookup profile manager.", ce);
} finally {
this.manager.release( service );
}
return instance;
}
/* (non-Javadoc)
* @see org.apache.avalon.framework.service.Serviceable#service(org.apache.avalon.framework.service.ServiceManager)
*/
public void service(ServiceManager manager) throws ServiceException {
this.manager = manager;
this.storeSelector = (ServiceSelector)this.manager.lookup( AspectDataStore.ROLE+"Selector" );
}
/* (non-Javadoc)
* @see org.apache.avalon.framework.activity.Disposable#dispose()
*/
public void dispose() {
if ( this.manager != null ) {
this.manager.release( this.storeSelector );
this.storeSelector = null;
this.manager = null;
}
}
/* (non-Javadoc)
* @see org.apache.avalon.framework.configuration.Configurable#configure(org.apache.avalon.framework.configuration.Configuration)
*/
public void configure(Configuration configuration)
throws ConfigurationException {
final Configuration[] copletsConf = configuration.getChild("coplets").getChildren("coplet");
if ( copletsConf != null ) {
for(int i=0; i < copletsConf.length; i++ ) {
DefaultCopletDescription desc = new DefaultCopletDescription();
DefaultCopletDescription instanceDesc = new DefaultCopletDescription();
final String name = copletsConf[i].getAttribute("name");
// unique test
if ( this.coplets.get(name) != null) {
throw new ConfigurationException("Coplet name must be unique. Double definition for " + name);
}
desc.setName(copletsConf[i].getAttribute("name"));
instanceDesc.setName(copletsConf[i].getAttribute("name"));
instanceDesc.setCreateId(copletsConf[i].getAttributeAsBoolean("create-id", true));
// and now the aspects
Configuration[] aspectsConf = copletsConf[i].getChild("coplet-data-aspects").getChildren("aspect");
if (aspectsConf != null) {
for(int m=0; m < aspectsConf.length; m++) {
AspectDescription adesc = DefaultAspectDescription.newInstance(aspectsConf[m]);
desc.addAspectDescription( adesc );
}
}
// and now the aspects of the instances
aspectsConf = copletsConf[i].getChild("coplet-instance-data-aspects").getChildren("aspect");
if (aspectsConf != null) {
for(int m=0; m < aspectsConf.length; m++) {
AspectDescription adesc = DefaultAspectDescription.newInstance(aspectsConf[m]);
instanceDesc.addAspectDescription( adesc );
}
}
DefaultAspectDataHandler handler = new DefaultAspectDataHandler(desc, this.storeSelector);
DefaultAspectDataHandler instanceHandler = new DefaultAspectDataHandler(instanceDesc, this.storeSelector);
this.coplets.put(desc.getName(), new Object[] {desc, handler, instanceHandler});
this.descriptions.add(desc);
}
}
}
/* (non-Javadoc)
* @see org.apache.cocoon.portal.coplet.CopletFactory#remove(org.apache.cocoon.portal.coplet.CopletInstanceData)
*/
public void remove(CopletInstanceData copletInstanceData)
throws ProcessingException {
if ( copletInstanceData != null ) {
// now lookup the adapter
final String adapterName = copletInstanceData.getCopletData().getCopletBaseData().getCopletAdapterName();
CopletAdapter adapter = null;
ServiceSelector adapterSelector = null;
try {
adapterSelector = (ServiceSelector) this.manager.lookup( CopletAdapter.ROLE + "Selector");
adapter = (CopletAdapter)adapterSelector.select( adapterName );
adapter.logout( copletInstanceData );
adapter.destroy( copletInstanceData );
} catch (ServiceException ce) {
throw new ProcessingException("Unable to lookup coplet adapter selector or adaptor.", ce);
} finally {
if ( adapterSelector != null) {
adapterSelector.release( adapter );
}
this.manager.release( adapterSelector );
}
PortalService service = null;
try {
service = (PortalService)this.manager.lookup(PortalService.ROLE);
service.getComponentManager().getProfileManager().unregister(copletInstanceData);
} catch (ServiceException ce) {
throw new ProcessingException("Unable to lookup portal service.", ce);
} finally {
this.manager.release( service );
}
}
}
}