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/*
*
* 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.qpid.management.wsdm.common;
/**
* Thread session manager used to handle thread-scoped sessions.
*
* @author Andrea Gazzarini
*/
public final class ThreadSessionManager
{
private static ThreadSessionManager instance = new ThreadSessionManager();
private ThreadLocal<ThreadSession> sessions;
/**
* Builds and initializes a new manager.
*/
private ThreadSessionManager()
{
this.sessions = new ThreadLocal<ThreadSession>();
}
/**
* Returns the singleton instance of this manager.
*
* @return the singleton instance of this manager.
*/
public static ThreadSessionManager getInstance()
{
return instance;
}
/**
* Returns (or create and returns) the session associated with the
* current thread.
*
* @return the thread session.
*/
public ThreadSession getSession()
{
ThreadSession session = (ThreadSession) sessions.get();
if (session == null)
{
session = new ThreadSession();
sessions.set(session);
}
return session;
}
}
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