/*
* 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.jmeter.protocol.jms.client;
import java.io.Closeable;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
/**
*
* ClientPool holds the client instances in an ArrayList. The main purpose of
* this is to make it easier to clean up all the instances at the end of a test.
* If we didn't do this, threads might become zombie.
*
* N.B. This class needs to be fully synchronized as it is called from sample threads
* and the thread that runs testEnded() methods.
*/
public class ClientPool {
//GuardedBy("this")
private static final ArrayList<Closeable> clients = new ArrayList<>();
//GuardedBy("this")
private static final Map<Object, Object> client_map = new ConcurrentHashMap<>();
/**
* Add a ReceiveClient to the ClientPool. This is so that we can make sure
* to close all clients and make sure all threads are destroyed.
*
* @param client the ReceiveClient to add
*/
public static synchronized void addClient(Closeable client) {
clients.add(client);
}
/**
* Clear all the clients created by either Publish or Subscribe sampler. We
* need to do this to make sure all the threads created during the test are
* destroyed and cleaned up. In some cases, the client provided by the
* manufacturer of the JMS server may have bugs and some threads may become
* zombie. In those cases, it is not the responsibility of JMeter for those
* bugs.
*/
public static synchronized void clearClient() {
for (Closeable client : clients) {
try {
client.close();
} catch (IOException e) {
// Ignored
}
client = null;
}
clients.clear();
client_map.clear();
}
// TODO Method with 0 reference, really useful ?
public static void put(Object key, Object client) {
client_map.put(key, client);
}
// TODO Method with 0 reference, really useful ?
public static Object get(Object key) {
return client_map.get(key);
}
/**
* Remove publisher from clients
* @param publisher {@link Publisher}
*/
public static synchronized void removeClient(Publisher publisher) {
clients.remove(publisher);
}
}