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1
20
21 package org.apache.directory.ldapstudio.browser.core.internal.model;
22
23
24 import java.io.File  ;
25 import java.io.IOException ;
26 import java.lang.reflect.Field ;
27 import java.util.logging.FileHandler ;
28 import java.util.logging.Formatter ;
29 import java.util.logging.Handler ;
30 import java.util.logging.Level ;
31 import java.util.logging.LogRecord ;
32 import java.util.logging.Logger ;
33
34 import org.apache.directory.ldapstudio.browser.core.ConnectionManager;
35
36
37 public class ModificationLogger
38 {
39
40 private Connection connection;
41
42 private FileHandler fileHandler;
43
44 private Logger logger;
45
46
47 public ModificationLogger( Connection connection )
48 {
49 this.connection = connection;
50 }
51
52
53 private void initModificationLogger()
54 {
55 this.logger = Logger.getAnonymousLogger();
56 this.logger.setLevel( Level.ALL );
57
58 String logfileName = ConnectionManager.getModificationLogFileName( connection.getName() );
59 try
60 {
61 fileHandler = new FileHandler ( logfileName, 100000, 10, true );
62 fileHandler.setFormatter( new Formatter ()
63 {
64 public String format( LogRecord record )
65 {
66 return record.getMessage();
67 }
68 } );
69 this.logger.addHandler( fileHandler );
70 }
71 catch ( SecurityException e )
72 {
73 e.printStackTrace();
74 }
75 catch ( IOException e )
76 {
77 e.printStackTrace();
78 }
79 }
80
81
82 public void dispose()
83 {
84 if ( this.logger != null )
85 {
86 Handler [] handlers = this.logger.getHandlers();
87 for ( int i = 0; i < handlers.length; i++ )
88 {
89 handlers[i].close();
90 }
91
92 this.logger = null;
93 }
94 }
95
96
97 public void log( String s )
98 {
99 if ( this.logger == null )
100 {
101 if ( connection.getName() != null )
102 {
103 this.initModificationLogger();
104 }
105 }
106
107 if ( this.logger != null )
108 {
109 this.logger.log( Level.ALL, s );
110 }
111 }
112
113
114 public File [] getFiles()
115 {
116 if ( this.logger == null )
117 {
118 if ( connection.getName() != null )
119 {
120 this.initModificationLogger();
121 }
122 }
123
124 try
125 {
126 return getLogFiles( this.fileHandler );
127 }
128 catch ( Exception e )
129 {
130 return new File [0];
131 }
132 }
133
134
135 private static File [] getLogFiles( FileHandler fileHandler ) throws Exception
136 {
137 Field field = getFieldFromClass( "java.util.logging.FileHandler", "files" ); field.setAccessible( true );
139 File [] files = ( File [] ) field.get( fileHandler );
140 return files;
141 }
142
143
144 private static Field getFieldFromClass( String className, String fieldName ) throws Exception
145 {
146 Class clazz = Class.forName( className );
147 Field [] fields = clazz.getDeclaredFields();
148
149 for ( int i = 0; i < fields.length; i++ )
150 {
151 if ( fields[i].getName().equals( fieldName ) )
152 return fields[i];
153 }
154 return null;
155 }
156
157 }
158 |
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