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Diffstat (limited to 'tools/gnu/classpath/tools/jar/Lister.java')
-rw-r--r-- | tools/gnu/classpath/tools/jar/Lister.java | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/tools/gnu/classpath/tools/jar/Lister.java b/tools/gnu/classpath/tools/jar/Lister.java new file mode 100644 index 000000000..ee4fb725e --- /dev/null +++ b/tools/gnu/classpath/tools/jar/Lister.java @@ -0,0 +1,90 @@ +/* Lister.java - action to list contents of a jar file + 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 java.io.BufferedInputStream; +import java.io.File; +import java.io.FileInputStream; +import java.io.IOException; +import java.text.MessageFormat; +import java.util.Date; +import java.util.zip.ZipEntry; +import java.util.zip.ZipInputStream; + +public class Lister + extends Action +{ + private void listJar(ZipInputStream zis, boolean verbose) throws IOException + { + MessageFormat format = null; + if (verbose) + format = new MessageFormat(" {0,date,E M dd HH:mm:ss z yyyy} {1}"); + while (true) + { + ZipEntry entry = zis.getNextEntry(); + if (entry == null) + break; + if (verbose) + { + // No easy way to right-justify the size using + // MessageFormat -- how odd. + long size = entry.getSize(); + String s = " " + size; + int index = Math.min(s.length() - 5, 5); + System.out.print(s.substring(index)); + Object[] values = new Object[] { new Date(entry.getTime()), + entry.getName() }; + System.out.println(format.format(values)); + } + else + System.out.println(entry.getName()); + } + } + + public void run(Main parameters) throws IOException + { + File file = parameters.archiveFile; + ZipInputStream zis; + if (file == null || "-".equals(file.getName())) + zis = new ZipInputStream(System.in); + else + zis = new ZipInputStream(new BufferedInputStream(new FileInputStream(file))); + listJar(zis, parameters.verbose); + } +} |