| /* Indexer.java -- add index.list file to jar |
| Copyright (C) 2006 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU Classpath is distributed in the hope that it will be useful, but |
| WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 02110-1301 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| |
| package gnu.classpath.tools.jar; |
| |
| import gnu.java.net.IndexListParser; |
| |
| import java.io.ByteArrayInputStream; |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.text.MessageFormat; |
| import java.util.Enumeration; |
| import java.util.Iterator; |
| import java.util.LinkedHashSet; |
| import java.util.StringTokenizer; |
| import java.util.jar.Attributes; |
| import java.util.jar.JarEntry; |
| import java.util.jar.JarFile; |
| import java.util.jar.Manifest; |
| |
| public class Indexer |
| extends Updater |
| { |
| private void indexJarFile(StringBuffer result, File fileName, |
| boolean verbose) |
| throws IOException |
| { |
| if (verbose) |
| { |
| String msg = MessageFormat.format(Messages.getString("Indexer.Indexing"), //$NON-NLS-1$ |
| new Object[] { fileName }); |
| System.err.println(msg); |
| } |
| JarFile jf = new JarFile(fileName); |
| |
| // Index the files in this jar. |
| // The results look a little better if we keep them |
| // in insertion order. |
| LinkedHashSet entries = new LinkedHashSet(); |
| Enumeration e = jf.entries(); |
| while (e.hasMoreElements()) |
| { |
| JarEntry entry = (JarEntry) e.nextElement(); |
| String name = entry.getName(); |
| if (name.startsWith("META-INF/")) //$NON-NLS-1$ |
| continue; |
| int index = name.lastIndexOf('/'); |
| if (index != -1) |
| name = name.substring(0, index); |
| entries.add(name); |
| } |
| if (! entries.isEmpty()) |
| { |
| result.append(fileName); |
| // Any line ending will do. |
| result.append('\n'); |
| Iterator i = entries.iterator(); |
| while (i.hasNext()) |
| { |
| result.append(i.next()); |
| result.append('\n'); |
| } |
| // Paragraph break. |
| result.append('\n'); |
| } |
| |
| // Now read pointed-to jars. |
| Manifest m = jf.getManifest(); |
| if (m != null) |
| { |
| File parent = fileName.getParentFile(); |
| Attributes attrs = m.getMainAttributes(); |
| String jars = attrs.getValue(Attributes.Name.CLASS_PATH); |
| if (jars != null) |
| { |
| StringTokenizer st = new StringTokenizer(jars, " "); //$NON-NLS-1$ |
| while (st.hasMoreTokens()) |
| { |
| String name = st.nextToken(); |
| indexJarFile(result, new File(parent, name), verbose); |
| } |
| } |
| } |
| |
| jf.close(); |
| } |
| |
| protected void writeCommandLineEntries(Main parameters, OutputStream os) |
| throws IOException |
| { |
| // This is a pretty lame design. We know the super call will |
| // only have side effects and won't actually write anything important. |
| super.writeCommandLineEntries(parameters, os); |
| |
| // Now compute our index file and write it. |
| StringBuffer contents = new StringBuffer(); |
| indexJarFile(contents, parameters.archiveFile, parameters.verbose); |
| if (contents.length() != 0) |
| { |
| // Insert in reverse order to avoid computing anything. |
| contents.insert(0, "1.0\n\n"); //$NON-NLS-1$ |
| contents.insert(0, IndexListParser.JAR_INDEX_VERSION_KEY); |
| ByteArrayInputStream in |
| = new ByteArrayInputStream(contents.toString().getBytes()); |
| writeFile(false, in, IndexListParser.JAR_INDEX_FILE, parameters.verbose); |
| } |
| } |
| } |