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Java > Open Source Codes > org > jboss > aspects > asynchronous > aspects > jboss > AsynchronousAspect


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
23 package org.jboss.aspects.asynchronous.aspects.jboss;
24
25 import org.jboss.aop.annotation.AnnotationElement;
26 import org.jboss.aop.joinpoint.MethodInvocation;
27 import org.jboss.aspects.asynchronous.aspects.AsynchronousFacade;
28 import org.jboss.aspects.asynchronous.aspects.AsynchronousFacadeImpl;
29 import org.jboss.aspects.asynchronous.aspects.Utils;
30 import org.jboss.aspects.asynchronous.concurrent.ThreadManagerFactory;
31
32 /**
33  * @author <a HREF="mailto:chussenet@yahoo.com">{Claude Hussenet Independent Consultant}</a>.
34  * @version <tt>$Revision: 37406 $</tt>
35  */

36 public class AsynchronousAspect
37 {
38    private AsynchronousInvokeTask asynchronousInvokeTask =
39    new AsynchronousInvokeTask();
40
41    public AsynchronousAspect() {}
42
43    public Object JavaDoc execute(MethodInvocation invocation) throws Throwable JavaDoc
44    {
45       AsynchronousFacade asynchronousResult = null;
46       if (invocation.getTargetObject() != null)
47          asynchronousResult = (AsynchronousFacade) invocation.getTargetObject();
48       else
49       {
50          Object JavaDoc[] tObject = invocation.getArguments();
51          for (int i = 0; i < tObject.length; i++)
52          {
53             Object JavaDoc object = tObject[i];
54             if (object instanceof AsynchronousFacade)
55             {
56                asynchronousResult = (AsynchronousFacade) object;
57                break;
58             }
59          }
60          if (asynchronousResult == null)
61             asynchronousResult = new AsynchronousFacadeImpl();
62       }
63       Asynchronous asynchronous = (Asynchronous) AnnotationElement.getAnyAnnotation(invocation.getMethod(), Asynchronous.class);
64       if (asynchronous!=null)
65       {
66         if (asynchronousResult.getTimeout() == 0)
67          asynchronousResult.setTimeout(asynchronous.timeout());
68
69         if ((asynchronousResult.getId()!=null) && (asynchronousResult.getId().equals("None"))
70                                                &&
71                       (asynchronous.id()!=null)&&(asynchronous.id().length()!=0) )
72          asynchronousResult.setId(asynchronous.id());
73       }
74       asynchronousResult.setAsynchronousTask(ThreadManagerFactory.getThreadManager().process(ThreadManagerFactory.createNewThreadManagerRequest(asynchronousResult.getId(),
75       new InvokeTaskInputParameters((MethodInvocation) invocation.copy()),
76       asynchronousInvokeTask,
77       asynchronousResult.getTimeout())));
78       Class JavaDoc returnType = invocation.getActualMethod().getReturnType();
79       return Utils.returnInitObject(returnType);
80    }
81 }
82
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