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Java > Open Source Codes > com > caucho > amber > manager > PersistenceEnvironmentListener


1 /*
2  * Copyright (c) 1998-2006 Caucho Technology -- all rights reserved
3  *
4  * This file is part of Resin(R) Open Source
5  *
6  * Each copy or derived work must preserve the copyright notice and this
7  * notice unmodified.
8  *
9  * Resin Open Source is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2 of the License, or
12  * (at your option) any later version.
13  *
14  * Resin Open Source is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
17  * of NON-INFRINGEMENT. See the GNU General Public License for more
18  * details.
19  *
20  * You should have received a copy of the GNU General Public License
21  * along with Resin Open Source; if not, write to the
22  *
23  * Free Software Foundation, Inc.
24  * 59 Temple Place, Suite 330
25  * Boston, MA 02111-1307 USA
26  *
27  * @author Scott Ferguson
28  */
29
30 package com.caucho.amber.manager;
31
32 import com.caucho.loader.EnvironmentClassLoader;
33 import com.caucho.loader.EnvironmentListener;
34 import com.caucho.vfs.JarPath;
35 import com.caucho.vfs.Path;
36 import com.caucho.vfs.Vfs;
37
38 import java.net.URL JavaDoc;
39
40 /**
41  * Listener for environment start to detect and load persistence.xml
42  */
43 public class PersistenceEnvironmentListener implements EnvironmentListener {
44   /**
45    * Handles the case where the environment is starting (after init).
46    */
47   public void environmentStart(EnvironmentClassLoader loader)
48     throws Throwable JavaDoc
49   {
50     Path pwd = Vfs.getPwd(loader);
51
52     URL JavaDoc []urls = loader.getURLs();
53
54     for (int i = 0; i < urls.length; i++) {
55
56       // XXX: workaround for tck
57 String JavaDoc s = urls[i].toString();
58       Path path;
59       if (s.endsWith("jar!/")) {
60         s = s.substring(9, s.length()-2);
61         path = JarPath.create(pwd.lookup(s));
62       }
63       else {
64         path = pwd.lookup(s);
65       }
66
67       Path persistenceXml = path.lookup("META-INF/persistence.xml");
68
69       if (persistenceXml.canRead()) {
70         AmberContainer container = AmberContainer.getLocalContainer();
71
72         container.addPersistenceRoot(path);
73       }
74     }
75   }
76
77   /**
78    * Handles the case where the environment is stopping
79    */
80   public void environmentStop(EnvironmentClassLoader loader)
81   {
82   }
83 }
84
85
86
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