/* | |
* 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.felix.upnp.basedriver.importer.core.event.structs; | |
import java.util.Vector; | |
/* | |
* @author <a href="mailto:dev@felix.apache.org">Felix Project Team</a> | |
*/ | |
public class SubscriptionQueue { | |
private Vector queue; | |
private boolean running = true; | |
public SubscriptionQueue(){ | |
queue=new Vector(); | |
} | |
public synchronized void enqueue(Object obj){ | |
queue.add(obj); | |
if(queue.size()==1){ | |
notify(); | |
} | |
} | |
public synchronized Object dequeue(){ | |
while(queue.size()==0 && running){ | |
try { | |
wait(); | |
} catch (InterruptedException e) { | |
// TODO Auto-generated catch block | |
e.printStackTrace(); | |
} | |
} | |
if (running) | |
return queue.remove(0); | |
else | |
return null; | |
} | |
public synchronized void close() { | |
running = false; | |
notify(); | |
} | |
} |