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Java > Open Source Codes > com > jcorporate > expresso > services > asyncprocess > AsyncServlet


1 /* ====================================================================
2  * The Jcorporate Apache Style Software License, Version 1.2 05-07-2002
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61  * Portions of this software are based upon other open source
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64
65 package com.jcorporate.expresso.services.asyncprocess;
66
67 import org.apache.log4j.Logger;
68
69 import javax.servlet.ServletConfig JavaDoc;
70 import javax.servlet.ServletException JavaDoc;
71 import javax.servlet.http.HttpServlet JavaDoc;
72
73
74 /**
75  * This is a default way to initialize the async process factory. This servlet
76  * loads the factory in memory when created and destroys it when the context
77  * is destroyed.
78  *
79  * @author Michael Rimov
80  * @version $Revision: 1.6 $ on $Date: 2004/11/17 20:48:17 $
81  */
82 public class AsyncServlet extends HttpServlet JavaDoc {
83     private static final Logger log = Logger.getLogger(AsyncServlet.class);
84
85     /**
86      * The single Processor factory object
87      */
88     protected ProcessorFactory factory;
89
90     /**
91      * Creates a new AsyncServlet object.
92      */
93     public AsyncServlet() {
94     }
95
96     /**
97      * As per servlet specification.
98      */
99     public void destroy() {
100         factory.destroy();
101     }
102
103     /**
104      * Initialization lifecycle event. Constructs the Processor factory
105      *
106      * @param parm1 The servlet config the Context's servlet config as defined in web.xml
107      * @throws javax.servlet.ServletException upon error
108      */
109     public void init(ServletConfig JavaDoc parm1) throws ServletException JavaDoc {
110         try {
111             factory = new ProcessorFactory(new DefaultAsyncProcessor());
112         } catch (Throwable JavaDoc ex) {
113             log.error("Error initializing async processor. Processing disabled",
114                     ex);
115         }
116     }
117 }
118
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