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Java > Open Source Codes > org > jboss > aspects > concurrent > LatchAspect


1 /*
2   * JBoss, Home of Professional Open Source
3   * Copyright 2005, JBoss Inc., and individual contributors as indicated
4   * by the @authors tag. See the copyright.txt in the distribution for a
5   * full listing of individual contributors.
6   *
7   * This is free software; you can redistribute it and/or modify it
8   * under the terms of the GNU Lesser General Public License as
9   * published by the Free Software Foundation; either version 2.1 of
10   * the License, or (at your option) any later version.
11   *
12   * This software is distributed in the hope that it will be useful,
13   * but WITHOUT ANY WARRANTY; without even the implied warranty of
14   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15   * Lesser General Public License for more details.
16   *
17   * You should have received a copy of the GNU Lesser General Public
18   * License along with this software; if not, write to the Free
19   * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20   * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
21   */
22 package org.jboss.aspects.concurrent;
23
24 import org.jboss.aop.joinpoint.Invocation;
25
26 import java.util.concurrent.CountDownLatch JavaDoc;
27
28 /**
29  * comment
30  *
31  * @author <a HREF="mailto:bill@jboss.org">Bill Burke</a>
32  */
33 public class LatchAspect
34 {
35    public Object JavaDoc checkLatch(Invocation invocation) throws Throwable JavaDoc
36    {
37       LatchedObject latched = (LatchedObject) invocation.getTargetObject();
38       CountDownLatch JavaDoc latch = latched.getLatch();
39       try
40       {
41          latch.await();
42       }
43       catch (InterruptedException JavaDoc e)
44       {
45          throw new RuntimeException JavaDoc(e);
46       }
47       return invocation.invokeNext();
48    }
49 }
50
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