/**
* 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.camel.util.jndi;
import java.util.Hashtable;
import javax.naming.Context;
import javax.naming.NamingException;
/**
* A factory of the Camel {@link javax.naming.InitialContext} which allows a {@link java.util.Map} to be used to create a
* JNDI context.
* <p/>
* This implementation is singleton based, by creating a <b>new</b> context once, and reusing it on each call to
* {@link #getInitialContext(java.util.Hashtable)}.
*
* @version
*/
public class CamelSingletonInitialContextFactory extends CamelInitialContextFactory {
private static volatile Context context;
/**
* Gets or creates the context with the given environment.
* <p/>
* This implementation will create the context once, and then return the same instance
* on multiple calls.
*
* @param environment the environment, must not be <tt>null</tt>
* @return the created context.
* @throws javax.naming.NamingException is thrown if creation failed.
*/
public synchronized Context getInitialContext(Hashtable<?, ?> environment) throws NamingException {
if (context == null) {
context = super.getInitialContext(environment);
}
return context;
}
}