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Java > Open Source Codes > org > apache > jetspeed > daemon > impl > DiskCacheDaemon


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 JavaDoc 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 JavaDoc getMessage() {
140         return null;
141     }
142
143 }
144
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