| /* Extractor.java - action to extract from 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.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.text.MessageFormat; |
| import java.util.zip.ZipEntry; |
| import java.util.zip.ZipInputStream; |
| |
| public class Extractor |
| extends Action |
| { |
| // This is a set of all the items specified on the command line. |
| private WorkSet allItems; |
| |
| private void copyFile(InputStream input, File output) throws IOException |
| { |
| FileOutputStream os = new FileOutputStream(output); |
| byte[] buffer = new byte[1024]; |
| while (true) |
| { |
| int len = input.read(buffer); |
| if (len == - 1) |
| break; |
| os.write(buffer, 0, len); |
| } |
| os.close(); |
| } |
| |
| public void run(Main parameters) throws IOException |
| { |
| // Figure out what we want to extract. |
| allItems = new WorkSet(parameters.entries); |
| // Open the input file. |
| ZipInputStream zis; |
| File zfile = parameters.archiveFile; |
| if (zfile == null || "-".equals(zfile.getName())) //$NON-NLS-1$ |
| zis = new ZipInputStream(System.in); |
| else |
| { |
| InputStream ins = new BufferedInputStream(new FileInputStream(zfile)); |
| zis = new ZipInputStream(ins); |
| } |
| // Extract stuff. |
| while (true) |
| { |
| ZipEntry entry = zis.getNextEntry(); |
| if (entry == null) |
| break; |
| if (! allItems.contains(entry.getName())) |
| continue; |
| File file = new File(entry.getName()); |
| if (entry.isDirectory()) |
| { |
| if (file.mkdirs()) |
| { |
| if (parameters.verbose) |
| { |
| String msg |
| = MessageFormat.format(Messages.getString("Extractor.Created"), //$NON-NLS-1$ |
| new Object[] { file }); |
| System.err.println(msg); |
| } |
| } |
| continue; |
| } |
| |
| File parent = file.getParentFile(); |
| if (parent != null) |
| parent.mkdirs(); |
| |
| copyFile(zis, file); |
| |
| if (parameters.verbose) |
| { |
| String fmt; |
| if (entry.getMethod() == ZipEntry.STORED) |
| fmt = Messages.getString("Extractor.Extracted"); //$NON-NLS-1$ |
| else |
| fmt = Messages.getString("Extractor.Inflated"); //$NON-NLS-1$ |
| String msg = MessageFormat.format(fmt, new Object[] { file }); |
| System.err.println(msg); |
| } |
| } |
| } |
| } |