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1 package net.sourceforge.javalogging.installer;
2
3 import java.awt.*;
4 import java.io.*;
5 import java.net.*;
6 import java.util.Enumeration  ;
7 import java.util.StringTokenizer ;
8 import java.util.zip.*;
9 import javax.swing.*;
10
11 public class Installer {
12
13 private static ProgressDialog progress = new ProgressDialog();
14
15 public static void main( String [] args ) {
16
17 progress.setVisible( true );
18
19 String step = null;
20 try {
21
22 if ( checkJavaVersion() ) {
24
25 if ( lumberjackAlreadyInstalled() ) {
27 int answer = JOptionPane.showConfirmDialog( progress,
28 "Lumberjack is already installed. Overwrite?",
29 "Overwrite current installation?",
30 JOptionPane.OK_CANCEL_OPTION );
31 if ( answer != JOptionPane.OK_OPTION ) {
32 JOptionPane.showMessageDialog( progress, "Installation cancelled..." );
33 System.exit( 1 );
34 }
35 progress.addMessage( "Overwriting existing installation..." );
36 progress.mark( progress.CHECK_EXISTING );
37 try {
38 removeExistingLumberjack();
39 }
40 catch ( Exception e ) {
41 step = "Problems removing existing Lumberjack";
42 throw e;
43 }
44 }
45 else {
46 progress.mark( progress.CHECK_EXISTING );
47 }
48
49 try {
50 installClassFiles();
51 progress.mark( progress.INSTALL_CLASSES );
52 }
53 catch ( Exception e ) {
54 step = "Problems installing class files.";
55 throw e;
56 }
57
58 boolean installProperties = true;
59 if ( loggingPropertiesAlreadyInstalled() ) {
60 int answer = JOptionPane.showConfirmDialog( progress,
61 "'logging.properties' exists. Overwrite?",
62 "Overwrite current logging.properties?",
63 JOptionPane.OK_CANCEL_OPTION );
64 if ( answer != JOptionPane.OK_OPTION ) {
65 progress.addMessage( "Not installing 'logging.properties'..." );
66 installProperties = false;
67 }
68 else {
69 progress.addMessage( "Overwriting existing 'logging.properties'..." );
70 }
71 }
72 if ( installProperties ) {
73 try {
74 installPropertiesFile();
75 progress.mark( progress.INSTALL_PROPERTIES );
76 }
77 catch ( Exception e ) {
78 step = "Problems installing logging.properties.";
79 throw e;
80 }
81 }
82 progress.enableClose( "All done!", 0 );
83 }
84 }
85 catch ( Exception e ) {
86 progress.addMessage( step );
87 StringWriter sw = new StringWriter();
88 PrintWriter pw = new PrintWriter( sw );
89 e.printStackTrace( pw );
90 progress.enableClose( sw.getBuffer().toString(), 1 );
91 }
92 }
93
94 private static boolean checkJavaVersion() {
95 String version = System.getProperty( "java.version" );
96 if ( ! version.startsWith( "1.2" )
98 && ! version.startsWith( "1.3" ) ) {
99 if ( version.charAt( 0 ) == '1'
100 && version.charAt( 1 ) == '.'
101 && version.charAt( 2 ) >= '4' ) {
102 progress.enableClose( "The Java Logging API is in JDK 1.4 and beyond...", 1 );
103 return false;
104 }
105 else if ( version.startsWith( "1.1" ) ) {
106 progress.enableClose( "Lumberjack does not work with JDK 1.1.x...", 1 );
107 return false;
108 }
109 else {
110 progress.enableClose( "Unable to parse version info. Sorry!", 1 );
111 return false;
112 }
113 }
114 return true;
115 }
116
117 private static boolean lumberjackAlreadyInstalled() {
118 String javaHome = System.getProperty( "java.home" );
119 File classes = new File( javaHome + File.separator + "classes" );
120 if ( classes.exists() ) {
121 File logging = new File( classes.getAbsolutePath()
122 + File.separator + "java"
123 + File.separator + "util"
124 + File.separator + "logging" );
125 if ( logging.exists() ) {
126 return true;
127 }
128 }
129 return false;
130 }
131
132 private static boolean loggingPropertiesAlreadyInstalled() {
133 String javaHome = System.getProperty( "java.home" );
134 File loggingDotProperties = new File( javaHome + File.separator + "lib" + File.separator + "logging.properties" );
135 if ( loggingDotProperties.exists() ) {
136 return true;
137 }
138 return false;
139 }
140
141 private static void removeExistingLumberjack() throws Exception {
142 String javaHome = System.getProperty( "java.home" );
143 File logging = new File( javaHome
144 + File.separator + "classes"
145 + File.separator + "java"
146 + File.separator + "util"
147 + File.separator + "logging" );
148 File[] allFiles = logging.listFiles();
149 for ( int index = 0 ; index < allFiles.length ; index++ ) {
150 File current = allFiles[ index ];
151 if ( ! current.delete() ) {
152 throw new IllegalArgumentException ( "Unable to delete '"
153 + current.getAbsolutePath() + "'!" );
154 }
155 }
156 }
157
158 private static void installClassFiles() throws Exception {
159
163 String javaHome = System.getProperty( "java.home" );
166 StringBuffer loggingDirName = new StringBuffer ( javaHome
167 + File.separator + "classes"
168 + File.separator + "java"
169 + File.separator + "util"
170 + File.separator + "logging" );
171 File loggingDir = new File( loggingDirName.toString() );
172 if ( ! loggingDir.exists() && ! loggingDir.mkdirs() ) {
173 String msg = "Unable to assure output directory '" + loggingDir.getAbsolutePath() + "'!'";
174 progress.addMessage( msg );
175 throw new FileNotFoundException( msg );
176 }
177
178 ZipFile z = new ZipFile( System.getProperty( "java.class.path" ) );
179 Enumeration e = z.entries();
180 while ( e.hasMoreElements() ) {
181 ZipEntry entry = (ZipEntry) e.nextElement();
182 String name = entry.getName();
183 if ( name.startsWith( "java/util/logging" )
184 && name.length() > "java/util/logging/".length() ) {
185
186 int entrySize = (int) entry.getSize();
188 byte[] contents = new byte[ entrySize ];
189 InputStream in = z.getInputStream( entry );
190 int bytesRead = 0;
191 while ( bytesRead < entrySize ) {
192 bytesRead += in.read( contents, bytesRead, entrySize - bytesRead );
193 }
194 in.close();
195
196 String fileName = name.substring( name.lastIndexOf( '/' ) + 1 );
197 File outputFile = new File( loggingDirName.toString() + File.separator + fileName );
198 OutputStream out = new FileOutputStream( outputFile );
199 out.write( contents, 0, bytesRead );
200 out.close();
201
202 progress.addMessage( "Installed '" + name + "' (" + entry.getSize() + " bytes)..." );
203 }
204 }
205 }
206
207 private static void installPropertiesFile() throws Exception {
208 ZipFile z = new ZipFile( System.getProperty( "java.class.path" ) );
209 ZipEntry entry = (ZipEntry) z.getEntry( "net/sourceforge/javalogging/logging.properties" );
210
211 int entrySize = (int) entry.getSize();
213 byte[] contents = new byte[ entrySize ];
214 InputStream in = z.getInputStream( entry );
215 int bytesRead = 0;
216 while ( bytesRead < entrySize ) {
217 bytesRead += in.read( contents, bytesRead, entrySize - bytesRead );
218 }
219 in.close();
220
221 String javaHome = System.getProperty( "java.home" );
222 StringBuffer outputFileName = new StringBuffer ( javaHome
223 + File.separator + "lib"
224 + File.separator + "logging.properties" );
225
226 File outputFile = new File( outputFileName.toString() );
227 OutputStream out = new FileOutputStream( outputFile );
228 out.write( contents );
229 out.close();
230
231 progress.addMessage( "Installed '" + outputFile.getAbsolutePath() + "' (" + entry.getSize() + " bytes)..." );
232
233 }
234
235 } |
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