/*
* JBoss, Home of Professional Open Source
* Copyright 2006, JBoss Inc., and others contributors as indicated
* by the @authors tag. All rights reserved.
* See the copyright.txt in the distribution for a
* full listing of individual contributors.
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU Lesser General Public License, v. 2.1.
* This program is distributed in the hope that it will be useful, but WITHOUT A
* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
* PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public License,
* v.2.1 along with this distribution; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*
* (C) 2005-2006, JBoss Inc.
*/
package org.jboss.soa.esb.smooks.resource;
import java.io.IOException;
import java.io.InputStream;
import java.util.IdentityHashMap;
import java.util.Iterator;
import org.apache.log4j.Logger;
import org.jboss.soa.esb.lifecycle.LifecyclePriorities;
import org.jboss.soa.esb.lifecycle.LifecycleResource;
import org.jboss.soa.esb.lifecycle.LifecycleResourceException;
import org.jboss.soa.esb.lifecycle.LifecycleResourceFactory;
import org.milyn.Smooks;
import org.xml.sax.SAXException;
/**
* Smooks resource tied to the lifecycle.
*/
public class SmooksResource
{
/**
* The logger for this class.
*/
private static Logger LOGGER = Logger.getLogger(SmooksResource.class);
/**
* The lifecycle resource factory.
*/
private static final LifecycleResourceFactory<IdentityHashMap<Smooks, Smooks>> lifecycleSmooksResourceFactory = new SmooksResourceFactory() ;
/**
* Lifecycle smooks resources.
*/
private static final LifecycleResource<IdentityHashMap<Smooks, Smooks>> lifecycleSmooksResource =
new LifecycleResource<IdentityHashMap<Smooks, Smooks>>(lifecycleSmooksResourceFactory, LifecyclePriorities.SMOOKS_RESOURCE_PRIORITY) ;
private SmooksResource()
{
}
/**
* Create a smooks instance.
* @return The smooks instance.
* @throws LifecycleResourceException For errors creating the lifecycle resource.
*/
public static Smooks createSmooksResource()
throws LifecycleResourceException
{
final Smooks smooks = new Smooks() ;
lifecycleSmooksResource.getLifecycleResource().put(smooks, smooks) ;
return smooks;
}
/**
* Create a smooks instance using the specified configuration.
* @param config The configuration representing the smooks configuration.
* @return The smooks instance.
* @throws SAXException For errors parsing the smooks configuration.
* @throws IOException For errors accessing the smooks configuration.
* @throws LifecycleResourceException For errors creating the lifecycle resource.
*/
public static Smooks createSmooksResource(final String config)
throws SAXException, IOException, LifecycleResourceException
{
final Smooks smooks = new Smooks(config) ;
lifecycleSmooksResource.getLifecycleResource().put(smooks, smooks) ;
return smooks;
}
/**
* Create a smooks instance using the specified input stream.
* @param is The input stream representing the smooks configuration.
* @return The smooks instance.
* @throws SAXException For errors parsing the smooks configuration.
* @throws IOException For errors accessing the smooks configuration.
* @throws LifecycleResourceException For errors creating the lifecycle resource.
*/
public static Smooks createSmooksResource(final InputStream is)
throws SAXException, IOException, LifecycleResourceException
{
final Smooks smooks = new Smooks(is) ;
lifecycleSmooksResource.getLifecycleResource().put(smooks, smooks) ;
return smooks;
}
/**
* Close the smooks resource.
* @param smooks The smooks resource.
*/
public static void closeSmooksResource(final Smooks smooks)
{
try
{
smooks.close() ;
}
finally
{
try
{
lifecycleSmooksResource.getLifecycleResource().remove(smooks) ;
}
catch (final LifecycleResourceException lre) {} // ignore
}
}
/**
* The lifecycle resource factory
* @author kevin
*/
private static class SmooksResourceFactory implements LifecycleResourceFactory<IdentityHashMap<Smooks, Smooks>>
{
/**
* Create a resource object which will be associated with the specified lifecycle identity.
* @param lifecycleIdentity The associated lifecycle identity.
* @return The lifecycle resource
* @throws LifecycleResourceException for errors during construction.
*/
public IdentityHashMap<Smooks, Smooks> createLifecycleResource(final String lifecycleIdentity)
throws LifecycleResourceException
{
return new IdentityHashMap<Smooks, Smooks>() ;
}
/**
* Destroy a resource object which is associated with the specified lifecycle identity.
* @param resource The lifecycle resource.
* @param lifecycleIdentity The associated lifecycle identity.
* @return The lifecycle resource.
* @throws LifecycleResourceException for errors during destroy.
*/
public void destroyLifecycleResource(final IdentityHashMap<Smooks, Smooks> resource, final String lifecycleIdentity)
throws LifecycleResourceException
{
if (resource.size() > 0)
{
LOGGER.warn("Closing smooks resources for identity " + lifecycleIdentity) ;
final Iterator<Smooks> smooksIter = resource.keySet().iterator() ;
while(smooksIter.hasNext())
{
final Smooks smooks = smooksIter.next() ;
smooksIter.remove() ;
try
{
smooks.close() ;
}
catch (final Exception ex)
{
LOGGER.warn("Unexpected exception closing smooks resource", ex) ;
}
}
}
}
}
}