DiskCacheDaemon xref

This project has retired. For details please refer to its Attic page.

1   /*
2    * Copyright 2000-2004 The Apache Software Foundation.
3    * 
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    * 
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    * 
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  
17  package org.apache.jetspeed.daemon.impl;
18  
19  //jetspeed stuff
20  import org.apache.jetspeed.daemon.Daemon;
21  import org.apache.jetspeed.daemon.DaemonConfig;
22  import org.apache.jetspeed.daemon.DaemonEntry;
23  import org.apache.jetspeed.daemon.impl.util.diskcachedaemon.URLRefresher;
24  import org.apache.jetspeed.cache.disk.DiskCacheEntry;
25  import org.apache.jetspeed.cache.disk.JetspeedDiskCache;
26  import org.apache.jetspeed.services.logging.JetspeedLogFactoryService;
27  import org.apache.jetspeed.services.logging.JetspeedLogger;
28  import org.apache.jetspeed.services.threadpool.ThreadPool;
29  
30  //turbine stuff
31  import org.apache.turbine.util.RunData;
32  
33  /***
34  A daemon that takes all instances of the DiskCacheDaemon and makes sure
35  that any content entries get updated on a regular basis.
36  
37  
38  @author <A HREF="mailto:burton@apache.org">Kevin A. Burton</A>
39  @version $Id: DiskCacheDaemon.java,v 1.23 2004/02/23 02:48:05 jford Exp $
40  */
41  public class DiskCacheDaemon implements Daemon {
42  
43  
44      private int status = Daemon.STATUS_NOT_PROCESSED;
45      private int result = Daemon.RESULT_UNKNOWN;
46      private DaemonConfig config = null;
47      private DaemonEntry entry = null;
48      private RunData rundata = null;
49      
50      /***
51       * Static initialization of the logger for this class
52       */
53      private static final JetspeedLogger logger = JetspeedLogFactoryService.getLogger(DiskCacheDaemon.class.getName());
54      
55      /***
56      Go over all the documents on the system and if refresh them if necessary.
57      */
58      public void run() {
59          
60          logger.info("parsing out document store");
61          this.setResult( Daemon.RESULT_PROCESSING );
62          
63          DiskCacheEntry urls[] = JetspeedDiskCache.getInstance().getEntries();
64          
65          for (int i = 0; i < urls.length; ++i) {
66  
67              String url = urls[i].getSourceURL();
68              
69              //SGP Note: Currently local URL have cache entries,
70              //but we must not fetch them
71              if(!urls[i].isLocal()) {
72                  ThreadPool.process( new URLRefresher( url ) );
73              }
74  
75          }
76          this.setResult( Daemon.RESULT_SUCCESS );
77      }
78  
79      /***
80      Init this Daemon from the DaemonFactory
81      @see Daemon#init
82      */
83      public void init(DaemonConfig config, DaemonEntry entry) {
84          this.config = config;
85          this.entry = entry;
86      }
87      
88      /***
89      */
90      public DaemonConfig getDaemonConfig() {
91          return this.config;
92      }
93  
94      /***
95      */
96      public DaemonEntry getDaemonEntry() {
97          return this.entry;
98      }
99      
100     /***
101     Return the status for this Daemon
102 
103     @see Daemon#STATUS_NOT_PROCESSED
104     @see Daemon#STATUS_PROCESSED
105     @see Daemon#STATUS_PROCESSING
106     */
107     public int getStatus() {
108         return this.status;
109     }
110     
111     /***
112     Set the status for this Daemon
113 
114     @see #STATUS_NOT_PROCESSED
115     @see #STATUS_PROCESSED
116     @see #STATUS_PROCESSING
117     */
118     public void setStatus(int status) {
119         this.status = status;
120     }
121 
122     /***
123     @see Daemon#getResult()
124     */
125     public int getResult() {
126         return this.result;
127     }
128 
129     /***
130     @see Daemon#setResult(int result)
131     */
132     public void setResult( int result ) {
133         this.result = result;
134     }
135     
136     /***
137     @see Daemon#getMessage()
138     */
139     public String getMessage() {
140         return null;
141     }
142 
143 }