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.TypeUtil;
22 import org.eclipse.jetty.util.component.AbstractLifeCycle;
23 import org.eclipse.jetty.util.component.AggregateLifeCycle;
24 import org.eclipse.jetty.util.log.Log;
25
26
27 /* ------------------------------------------------------------ */
28 /** AbstractHandler.
29 *
30 *
31 */
32 public abstract class AbstractHandler extends AggregateLifeCycle implements Handler
33 {
34 private Server _server;
35
36 /* ------------------------------------------------------------ */
37 /**
38 *
39 */
40 public AbstractHandler()
41 {
42 }
43
44 /* ------------------------------------------------------------ */
45 /*
46 * @see org.eclipse.thread.LifeCycle#start()
47 */
48 @Override
49 protected void doStart() throws Exception
50 {
51 Log.debug("starting {}",this);
52 super.doStart();
53 }
54
55 /* ------------------------------------------------------------ */
56 /*
57 * @see org.eclipse.thread.LifeCycle#stop()
58 */
59 @Override
60 protected void doStop() throws Exception
61 {
62 Log.debug("stopping {}",this);
63 super.doStop();
64 }
65
66 /* ------------------------------------------------------------ */
67 public void setServer(Server server)
68 {
69 Server old_server=_server;
70 if (old_server!=null && old_server!=server)
71 old_server.getContainer().removeBean(this);
72 _server=server;
73 if (_server!=null && _server!=old_server)
74 _server.getContainer().addBean(this);
75 }
76
77 /* ------------------------------------------------------------ */
78 public Server getServer()
79 {
80 return _server;
81 }
82
83 /* ------------------------------------------------------------ */
84 public void destroy()
85 {
86 if (!isStopped())
87 throw new IllegalStateException("!STOPPED");
88 super.destroy();
89 if (_server!=null)
90 _server.getContainer().removeBean(this);
91 }
92
93 /* ------------------------------------------------------------ */
94 public void dumpThis(Appendable out) throws IOException
95 {
96 out.append(toString()).append(' ').append(getState()).append('\n');
97 }
98
99 }