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1
87 package org.codehaus.loom.components.util;
88
89 import java.io.File  ;
90 import java.net.MalformedURLException ;
91
92 import org.codehaus.loom.interfaces.LoomException;
93
94
100 public class ResourceUtil
101 {
102 private static final String SAR_PROTOCOL = "sar:";
103 private static final String SAR_INF = "SAR-INF/";
104 private static final String CLASSES = SAR_INF + "classes";
105 private static final String LIB = SAR_INF + "lib";
106
107
115 public static String expandSarURL( final String codeBase,
116 final File baseDirectory,
117 final File workDirectory )
118 throws Exception
119 {
120 if( codeBase.startsWith( SAR_PROTOCOL ) )
121 {
122 final File file =
123 getFileForResource( codeBase.substring( 4 ),
124 baseDirectory,
125 workDirectory );
126 try
127 {
128 return file.toURL().toString();
129 }
130 catch( MalformedURLException e )
131 {
132 throw new LoomException( e.getMessage(), e );
133 }
134 }
135 else
136 {
137 return codeBase;
138 }
139 }
140
141 public static File getFileForResource( final String location,
142 final File baseDirectory,
143 final File workDirectory )
144 {
145 String filename =
146 location.replace( '/', File.separatorChar );
147 if( filename.startsWith( "/" ) )
148 {
149 filename = filename.substring( 1 );
150 }
151
152 final File baseDir =
153 getBaseDirectoryFor( location, baseDirectory, workDirectory );
154 return new File ( baseDir, filename );
155 }
156
157 private static File getBaseDirectoryFor( final String location,
158 final File baseDirectory,
159 final File workDirectory )
160 {
161 if( location.startsWith( CLASSES ) ||
162 location.startsWith( LIB ) )
163 {
164 return workDirectory;
165 }
166 else
167 {
168 return baseDirectory;
169 }
170 }
171 }
172 |
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