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Java > Open Source Codes > com > caucho > services > server > GenericService


1 /*
2  * Copyright (c) 2001-2004 Caucho Technology, Inc. All rights reserved.
3  *
4  * The Apache Software License, Version 1.1
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  *
10  * 1. Redistributions of source code must retain the above copyright
11  * notice, this list of conditions and the following disclaimer.
12  *
13  * 2. Redistributions in binary form must reproduce the above copyright
14  * notice, this list of conditions and the following disclaimer in
15  * the documentation and/or other materials provided with the
16  * distribution.
17  *
18  * 3. The end-user documentation included with the redistribution, if
19  * any, must include the following acknowlegement:
20  * "This product includes software developed by the
21  * Caucho Technology (http://www.caucho.com/)."
22  * Alternately, this acknowlegement may appear in the software itself,
23  * if and wherever such third-party acknowlegements normally appear.
24  *
25  * 4. The names "Hessian", "Resin", and "Caucho" must not be used to
26  * endorse or promote products derived from this software without prior
27  * written permission. For written permission, please contact
28  * info@caucho.com.
29  *
30  * 5. Products derived from this software may not be called "Resin"
31  * nor may "Resin" appear in their names without prior written
32  * permission of Caucho Technology.
33  *
34  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
35  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
36  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
37  * DISCLAIMED. IN NO EVENT SHALL CAUCHO TECHNOLOGY OR ITS CONTRIBUTORS
38  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
39  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
40  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
41  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
42  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
43  * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
44  * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
45  *
46  * @author Scott Ferguson
47  */
48
49 package com.caucho.services.server;
50
51 import javax.servlet.ServletConfig JavaDoc;
52 import javax.servlet.ServletContext JavaDoc;
53 import javax.servlet.ServletException JavaDoc;
54 import javax.servlet.ServletRequest JavaDoc;
55
56 /**
57  * Interface for a service, including lifecycle.
58  */
59 public class GenericService implements Service {
60   protected ServletConfig JavaDoc config;
61   
62   /**
63    * Initialize the service instance.
64    */
65   public void init(ServletConfig JavaDoc config)
66     throws ServletException JavaDoc
67   {
68     this.config = config;
69
70     init();
71   }
72   
73   /**
74    * Initialize the service instance.
75    */
76   public void init()
77     throws ServletException JavaDoc
78   {
79   }
80
81   /**
82    * Returns the named initialization parameter.
83    */
84   public String JavaDoc getInitParameter(String JavaDoc name)
85   {
86     return this.config.getInitParameter(name);
87   }
88
89   /**
90    * Returns the servlet context.
91    */
92   public ServletConfig JavaDoc getServletConfig()
93   {
94     return this.config;
95   }
96
97   /**
98    * Returns the servlet context.
99    */
100   public ServletContext JavaDoc getServletContext()
101   {
102     return this.config.getServletContext();
103   }
104
105   /**
106    * Logs a message to the error stream.
107    */
108   public void log(String JavaDoc message)
109   {
110     getServletContext().log(message);
111   }
112
113   /**
114    * Returns the servlet request object for the request.
115    */
116   public ServletRequest JavaDoc getRequest()
117   {
118     return ServiceContext.getRequest();
119   }
120
121   /**
122    * Returns the service identifier for the request.
123    */
124   public String JavaDoc getServiceName()
125   {
126     return ServiceContext.getServiceName();
127   }
128
129   /**
130    * Returns the service identifier for the request.
131    *
132    * @deprecated
133    */
134   public String JavaDoc getServiceId()
135   {
136     return getServiceName();
137   }
138
139   /**
140    * Returns the object identifier for the request.
141    */
142   public String JavaDoc getObjectId()
143   {
144     return ServiceContext.getObjectId();
145   }
146   
147   /**
148    * Cleanup the service instance.
149    */
150   public void destroy()
151   {
152   }
153 }
154
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