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+/* 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);
+ }
+}