1 package org.apache.fulcrum.yaafi.service.systemproperty;
2
3 /*
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 import org.apache.avalon.framework.configuration.Configuration;
23 import org.apache.avalon.framework.configuration.ConfigurationException;
24 import org.apache.avalon.framework.configuration.Reconfigurable;
25 import org.apache.avalon.framework.logger.AbstractLogEnabled;
26
27
28 /**
29 * Copies the properties found in the configuration into the SystemProperties
30 *
31 * @author <a href="mailto:siegfried.goeschl@it20one.at">Siegfried Goeschl</a>
32 */
33
34 public class SystemPropertyServiceImpl
35 extends AbstractLogEnabled
36 implements SystemPropertyService, Reconfigurable
37 {
38 /**
39 * Constructor
40 */
41 public SystemPropertyServiceImpl()
42 {
43 // nothing to do here
44 }
45
46 /**
47 * @see org.apache.avalon.framework.configuration.Configurable#configure(org.apache.avalon.framework.configuration.Configuration)
48 */
49 public void configure(Configuration configuration) throws ConfigurationException
50 {
51 String key = null;
52 String value = null;
53 String oldValue = null;
54 Configuration[] systemProperties = configuration.getChildren("property");
55
56 for( int i=0; i<systemProperties.length; i++ )
57 {
58 key = systemProperties[i].getAttribute("name");
59 value = systemProperties[i].getValue();
60 oldValue = System.getProperty(key);
61
62 if( oldValue != null )
63 {
64 this.getLogger().debug(
65 "Changing the value of " + key + " from " + oldValue + " to " + value
66 );
67 }
68 else
69 {
70 this.getLogger().debug(
71 "Setting the value of " + key + " to " + value
72 );
73 }
74
75 System.setProperty( key, value );
76
77 }
78
79 this.getLogger().debug( "Processed the following number of properties : " + systemProperties.length );
80 }
81
82 /**
83 * @see org.apache.avalon.framework.configuration.Reconfigurable#reconfigure(org.apache.avalon.framework.configuration.Configuration)
84 */
85 public void reconfigure(Configuration configuration)
86 throws ConfigurationException
87 {
88 this.configure(configuration);
89 }
90 }