KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > com > caucho > server > deploy > AbstractDeployControllerStrategy


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.server.deploy;
31
32 /**
33  * The abstract strategy implements the start, update, and stop commands which
34  * are common to all strategies.
35  *
36  * <table>
37  * <tr><th>input <th>stopped <th>active <th>modified <th>error
38  * <tr><td>start <td>startImpl<td>- <td>restartImpl<td>restartImpl
39  * <tr><td>update <td>startImpl<td>- <td>restartImpl<td>restartImpl
40  * <tr><td>stop <td>- <td>stopImpl<td>stopImpl <td>stopImpl
41  * </table>
42  */
43 abstract public class AbstractDeployControllerStrategy
44   implements DeployControllerStrategy {
45
46   /**
47    * Starts the instance. Called from an admin start.
48    *
49    * @param controller the owning controller
50    */
51   public <I extends DeployInstance>
52           void start(DeployController<I> controller)
53   {
54     if (controller.isStopped()) {
55       // server/1d03
56 controller.startImpl();
57     }
58     else if (controller.isModifiedNow()) {
59       // server/1d0p
60 controller.restartImpl();
61     }
62     else if (controller.isError()) {
63       controller.restartImpl();
64     }
65     else { /* active */
66     }
67   }
68
69   /**
70    * Stops the instance from an admin command.
71    *
72    * @param controller the owning controller
73    */
74   public<I extends DeployInstance>
75     void stop(DeployController<I> controller)
76   {
77     controller.stopImpl();
78   }
79 }
80
Popular Tags