/**
* Licensed to Jasig under one or more contributor license
* agreements. See the NOTICE file distributed with this work
* for additional information regarding copyright ownership.
* Jasig 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.jasig.portal.jndi;
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.NamingException;
import javax.naming.spi.InitialContextFactory;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.springframework.beans.factory.DisposableBean;
import tyrex.naming.MemoryContext;
/**
* Initial context factory that provides access to close and de-reference the MemoryContext.
*
* @author Eric Dalquist
* @version $Revision$
*/
public class DisposableMemoryContextFactory implements InitialContextFactory, DisposableBean {
private static final Log LOGGER = LogFactory.getLog(DisposableMemoryContextFactory.class);
private static MemoryContext context;
/* (non-Javadoc)
* @see javax.naming.spi.InitialContextFactory#getInitialContext(java.util.Hashtable)
*/
public Context getInitialContext(Hashtable<?, ?> environment) throws NamingException {
synchronized (DisposableMemoryContextFactory.class) {
if (context == null) {
context = new MemoryContext(environment);
LOGGER.info("Created new MemoryContext with environment '" + environment + "'");
}
}
return context;
}
/* (non-Javadoc)
* @see org.springframework.beans.factory.DisposableBean#destroy()
*/
public void destroy() throws Exception {
closeContext();
}
/**
* Closes and de-references the {@link MemoryContext}, if already closed this is a noop.
*/
public synchronized static void closeContext() {
if (context != null) {
LOGGER.info("Closing MemoryContext with environment '" + context.getEnvironment() + "'");
context.close();
context = null;
}
}
}