| /******************************************************************************* |
| * Copyright (c) 2006 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM - Initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.update.internal.jarprocessor; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.List; |
| import java.util.Properties; |
| |
| /** |
| * @author aniefer |
| * |
| */ |
| public class UnpackStep extends CommandStep { |
| public static final String UNPACKER_PROPERTY = "org.eclipse.update.jarprocessor.Unpacker"; //$NON-NLS-1$ |
| private static Boolean canUnpack = null; |
| private static String unpackCommand = null; |
| |
| public static boolean canUnpack() { |
| if (canUnpack != null) |
| return canUnpack.booleanValue(); |
| |
| String[] locations = Utils.getPack200Commands("unpack200"); //$NON-NLS-1$ |
| if (locations == null) { |
| canUnpack = Boolean.FALSE; |
| unpackCommand = null; |
| return false; |
| } |
| |
| int result; |
| for (int i = 0; i < locations.length; i++) { |
| if (locations[i] == null) |
| continue; |
| result = execute(new String[] {locations[i], "-V"}); //$NON-NLS-1$ |
| if (result == 0) { |
| unpackCommand = locations[i]; |
| canUnpack = Boolean.TRUE; |
| return true; |
| } |
| } |
| |
| canUnpack = Boolean.FALSE; |
| return false; |
| } |
| |
| public UnpackStep(Properties options) { |
| super(options, null, null, false); |
| } |
| |
| public UnpackStep(Properties options, boolean verbose) { |
| super(options, null, null, verbose); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.update.jarprocessor.IProcessStep#recursionEffect(java.lang.String) |
| */ |
| public String recursionEffect(String entryName) { |
| if (canUnpack() && entryName.endsWith(Utils.PACKED_SUFFIX)) { |
| return entryName.substring(0, entryName.length() - Utils.PACKED_SUFFIX.length()); |
| } |
| return null; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.update.jarprocessor.IProcessStep#preProcess(java.io.File, java.io.File) |
| */ |
| public File preProcess(File input, File workingDirectory, List containers) { |
| if (canUnpack() && unpackCommand != null) { |
| String name = input.getName(); |
| if (name.endsWith(Utils.PACKED_SUFFIX)) { |
| name = name.substring(0, name.length() - Utils.PACKED_SUFFIX.length()); |
| |
| File unpacked = new File(workingDirectory, name); |
| File parent = unpacked.getParentFile(); |
| if (!parent.exists()) |
| parent.mkdirs(); |
| try { |
| String options = getOptions().getProperty(input.getName() + ".unpack.args"); //$NON-NLS-1$ |
| String[] cmd = null; |
| if (options != null) { |
| cmd = new String[] {unpackCommand, options, input.getCanonicalPath(), unpacked.getCanonicalPath()}; |
| } else { |
| cmd = new String[] {unpackCommand, input.getCanonicalPath(), unpacked.getCanonicalPath()}; |
| } |
| int result = execute(cmd, verbose); |
| if (result != 0 && verbose) |
| System.out.println("Error: " + result + " was returned from command: " + Utils.concat(cmd)); //$NON-NLS-1$ //$NON-NLS-2$ |
| } catch (IOException e) { |
| if (verbose) |
| e.printStackTrace(); |
| return null; |
| } |
| return unpacked; |
| } |
| } |
| return null; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.update.jarprocessor.IProcessStep#postProcess(java.io.File, java.io.File) |
| */ |
| public File postProcess(File input, File workingDirectory, List containers) { |
| return null; |
| } |
| |
| public String getStepName() { |
| return "Unpack"; //$NON-NLS-1$ |
| } |
| } |