1 // ========================================================================
2 // Copyright (c) 2004-2009 Mort Bay Consulting Pty. Ltd.
3 // ------------------------------------------------------------------------
4 // All rights reserved. This program and the accompanying materials
5 // are made available under the terms of the Eclipse Public License v1.0
6 // and Apache License v2.0 which accompanies this distribution.
7 // The Eclipse Public License is available at
8 // http://www.eclipse.org/legal/epl-v10.html
9 // The Apache License v2.0 is available at
10 // http://www.opensource.org/licenses/apache2.0.php
11 // You may elect to redistribute this code under either of these licenses.
12 // ========================================================================
13
14 package org.eclipse.jetty.server.handler;
15
16
17 import java.io.IOException;
18
19 import org.eclipse.jetty.server.Handler;
20 import org.eclipse.jetty.server.Server;
21 import org.eclipse.jetty.util.component.AggregateLifeCycle;
22 import org.eclipse.jetty.util.log.Log;
23 import org.eclipse.jetty.util.log.Logger;
24
25
26 /* ------------------------------------------------------------ */
27 /** AbstractHandler.
28 *
29 *
30 */
31 public abstract class AbstractHandler extends AggregateLifeCycle implements Handler
32 {
33 private static final Logger LOG = Log.getLogger(AbstractHandler.class);
34
35 private Server _server;
36
37 /* ------------------------------------------------------------ */
38 /**
39 *
40 */
41 public AbstractHandler()
42 {
43 }
44
45 /* ------------------------------------------------------------ */
46 /*
47 * @see org.eclipse.thread.LifeCycle#start()
48 */
49 @Override
50 protected void doStart() throws Exception
51 {
52 LOG.debug("starting {}",this);
53 super.doStart();
54 }
55
56 /* ------------------------------------------------------------ */
57 /*
58 * @see org.eclipse.thread.LifeCycle#stop()
59 */
60 @Override
61 protected void doStop() throws Exception
62 {
63 LOG.debug("stopping {}",this);
64 super.doStop();
65 }
66
67 /* ------------------------------------------------------------ */
68 public void setServer(Server server)
69 {
70 Server old_server=_server;
71 if (old_server!=null && old_server!=server)
72 old_server.getContainer().removeBean(this);
73 _server=server;
74 if (_server!=null && _server!=old_server)
75 _server.getContainer().addBean(this);
76 }
77
78 /* ------------------------------------------------------------ */
79 public Server getServer()
80 {
81 return _server;
82 }
83
84 /* ------------------------------------------------------------ */
85 public void destroy()
86 {
87 if (!isStopped())
88 throw new IllegalStateException("!STOPPED");
89 super.destroy();
90 if (_server!=null)
91 _server.getContainer().removeBean(this);
92 }
93
94 /* ------------------------------------------------------------ */
95 public void dumpThis(Appendable out) throws IOException
96 {
97 out.append(toString()).append(' ').append(getState()).append('\n');
98 }
99
100 }