| /******************************************************************************* |
| * Copyright (c) 2005 The Regents of the University of California. |
| * This material was produced under U.S. Government contract W-7405-ENG-36 |
| * for Los Alamos National Laboratory, which is operated by the University |
| * of California for the U.S. Department of Energy. The U.S. Government has |
| * rights to use, reproduce, and distribute this software. NEITHER THE |
| * GOVERNMENT NOR THE UNIVERSITY MAKES ANY WARRANTY, EXPRESS OR IMPLIED, OR |
| * ASSUMES ANY LIABILITY FOR THE USE OF THIS SOFTWARE. If software is modified |
| * to produce derivative works, such modified software should be clearly marked, |
| * so as not to confuse it with the version available from LANL. |
| * |
| * Additionally, this program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * LA-CC 04-115 |
| *******************************************************************************/ |
| |
| package org.eclipse.ptp.core.util; |
| |
| import java.util.Collections; |
| import java.util.LinkedList; |
| import java.util.List; |
| |
| public class Queue<T> { |
| protected List<T> list; |
| |
| public Queue() { |
| list = Collections.synchronizedList(new LinkedList<T>()); |
| } |
| |
| public T removeItem() throws InterruptedException { |
| synchronized (list) { |
| while (list.isEmpty()) { |
| list.wait(); |
| } |
| return list.remove(0); |
| } |
| } |
| |
| public void addItem(T item) { |
| synchronized (list) { |
| list.add(item); |
| list.notifyAll(); |
| } |
| } |
| |
| public T[] clearItems() { |
| T[] array; |
| synchronized (list) { |
| array = (T[]) list.toArray(); |
| list.clear(); |
| } |
| return array; |
| } |
| |
| public boolean isEmpty() { |
| boolean empty; |
| synchronized (list) { |
| empty = list.isEmpty(); |
| } |
| return empty; |
| } |
| } |