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Java > Open Source Codes > org > jboss > ejb3 > test > strictpool > StrictlyPooledSessionBean


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.ejb3.test.strictpool;
23
24 import javax.annotation.Resource;
25 import javax.ejb.EJBException JavaDoc;
26 import javax.ejb.Remote JavaDoc;
27 import javax.ejb.SessionContext JavaDoc;
28 import javax.ejb.Stateless JavaDoc;
29 import org.jboss.annotation.ejb.PoolClass;
30
31
32 /**
33  * Adapted from the EJB 2.1 tests (org.jboss.test.cts.ejb.StrictlyPooledSessionBean)
34  * @author <a HREF="mailto:kabir.khan@jboss.org">Kabir Khan</a>
35  * @version $Revision: 37459 $
36  */

37 @Stateless JavaDoc
38 @PoolClass (value=org.jboss.ejb3.StrictMaxPool.class, maxSize=StrictlyPooledSessionBean.maxActiveCount, timeout=10000)
39 @Remote JavaDoc(StrictlyPooledSession.class)
40 public class StrictlyPooledSessionBean implements StrictlyPooledSession
41 {
42    /** The class wide max count of instances allows */
43    public static final int maxActiveCount = 5;
44    /** The class wide count of instances active in business code */
45    private static int activeCount;
46
47    private SessionContext JavaDoc ctx;
48
49    @Resource public void setSessionContext(SessionContext JavaDoc ctx)
50    {
51       System.out.println("setSessionContext()");
52       this.ctx = ctx;
53    }
54
55    public void methodA()
56    {
57       int count = incActiveCount();
58       System.out.println("Begin methodA, activeCount="+count+", ctx="+ctx);
59       try
60       {
61          if( count > maxActiveCount )
62          {
63             String JavaDoc msg = "IllegalState, activeCount > maxActiveCount, "
64                   + count + " > " + maxActiveCount;
65             throw new EJBException JavaDoc(msg);
66          }
67          // Sleep to let the client thread pile up
68
Thread.currentThread().sleep(1000);
69       }
70       catch(InterruptedException JavaDoc e)
71       {
72       }
73       finally
74       {
75          count = decActiveCount();
76          System.out.println("End methodA, activeCount="+count+", ctx="+ctx);
77       }
78    }
79
80    private static synchronized int incActiveCount()
81    {
82       return activeCount ++;
83    }
84    private static synchronized int decActiveCount()
85    {
86       return activeCount --;
87    }
88
89 }
90
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