Attachment 38035 Details for Bug 127375 – Handle nested jars

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[patch] Handle nested jars

update.pack200.txt (text/plain), 58.29 KB, created by Andrew Niefer

on 2006-04-07 15:48:54 EDT

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Creator: Andrew Niefer

Created: 2006-04-07 15:48:54 EDT

Size: 58.29 KB

patch

obsolete

>### Eclipse Workspace Patch 1.0
>#P org.eclipse.update.core
>Index: src/org/eclipse/update/core/FeatureContentProvider.java
>===================================================================
>RCS file: /cvsroot/eclipse/org.eclipse.update.core/src/org/eclipse/update/core/FeatureContentProvider.java,v
>retrieving revision 1.61
>diff -u -r1.61 FeatureContentProvider.java
>--- src/org/eclipse/update/core/FeatureContentProvider.java	29 Mar 2006 23:37:07 -0000	1.61
>+++ src/org/eclipse/update/core/FeatureContentProvider.java	7 Apr 2006 19:36:45 -0000
>@@ -109,7 +109,15 @@
> 
> 	// hashtable of locks
> 	private static Hashtable locks = new Hashtable();
>-
>+	
>+	protected static Object getLock(String key) {
>+		synchronized (lock) {
>+			if (locks.get(key) == null)
>+				locks.put(key, key);
>+			return locks.get(key);
>+		}
>+	}
>+	
> 	/**
> 	 * Feature content provider constructor
> 	 * 
>@@ -179,13 +187,7 @@
> 		// is still copying into it
> 		File localFile = null;
> 		FileFragment localFileFragment = null;
>-		Object keyLock = null;
>-		synchronized (lock) {
>-			if (locks.get(key) == null)
>-				locks.put(key, key);
>-			keyLock = locks.get(key);
>-		}
>-
>+		Object keyLock = getLock(key);
> 		synchronized (keyLock) {
> 			localFile = Utilities.lookupLocalFile(key);
> 			if (localFile != null) {
>Index: src/org/eclipse/update/internal/core/FeaturePackagedContentProvider.java
>===================================================================
>RCS file: /cvsroot/eclipse/org.eclipse.update.core/src/org/eclipse/update/internal/core/FeaturePackagedContentProvider.java,v
>retrieving revision 1.46
>diff -u -r1.46 FeaturePackagedContentProvider.java
>--- src/org/eclipse/update/internal/core/FeaturePackagedContentProvider.java	6 Apr 2006 17:02:53 -0000	1.46
>+++ src/org/eclipse/update/internal/core/FeaturePackagedContentProvider.java	7 Apr 2006 19:36:45 -0000
>@@ -10,15 +10,16 @@
>  *******************************************************************************/
> package org.eclipse.update.internal.core;
> import java.io.*;
>-import java.net.*;
>+import java.net.URL;
> import java.util.*;
>-
>-import org.eclipse.core.runtime.*;
>+import org.eclipse.core.runtime.CoreException;
> import org.eclipse.osgi.internal.provisional.verifier.CertificateVerifierFactory;
> import org.eclipse.osgi.util.NLS;
> import org.eclipse.update.core.*;
>+import org.eclipse.update.core.model.SiteModel;
> import org.eclipse.update.internal.security.JarVerifier;
> import org.eclipse.update.internal.verifier.CertVerifier;
>+import org.eclipse.update.jarprocessor.JarProcessor;
> 
> /**
>  * Content Provider of a Feature Package
>@@ -28,7 +29,7 @@
> 	private ContentReference localManifest = null;
> 	private ContentReference[] localFeatureFiles = new ContentReference[0];
> 	private IVerifier jarVerifier = null;
>-
>+	private SiteModel siteModel = null;
> 	/*
> 	 * filter for file with .jar
> 	 */
>@@ -64,6 +65,13 @@
> 		return jarVerifier;
> 	}
> 
>+	public void setFeature(IFeature feature) {
>+		super.setFeature(feature);
>+		ISite featureSite = feature.getSite();
>+		if(featureSite instanceof SiteModel){
>+			siteModel = (SiteModel) featureSite;
>+		}
>+	}
> 	/*
> 	 * @see IFeatureContentProvider#getFeatureManifestReference()
> 	 */
>@@ -168,13 +176,64 @@
> 		URL url = (siteContentProvider == null) ? null : siteContentProvider.getArchiveReference(archiveID);
> 
> 		try {
>-			references[0] = asLocalReference(new JarContentReference(archiveID, url), monitor);
>+			references[0] = retrieveLocalJar(new JarContentReference(archiveID, url), monitor);
> 		} catch (IOException e) {
> 			throw errorRetrieving(archiveID, references[0], e);
> 		}
> 		return references;
> 	}
> 
>+	private ContentReference retrieveLocalJar(JarContentReference reference, InstallMonitor monitor) throws IOException, CoreException {
>+		//If the site does not support pack200, just get the jar as normal
>+		if(siteModel == null || !siteModel.supportsPack200() || !JarProcessor.canPerformUnpack()) {
>+			return asLocalReference(reference, monitor);
>+		}
>+		
>+		ContentReference packedRef = null;
>+		String key = reference.toString();
>+		Object jarLock = getLock(key);
>+		synchronized (jarLock) {
>+			//do we have this jar already?
>+			File localFile = Utilities.lookupLocalFile(key);
>+			if (localFile != null) {
>+				// check if the cached file is still valid (no newer version on server)
>+				if (UpdateManagerUtils.isSameTimestamp(reference.asURL(), localFile.lastModified()))
>+					return reference.createContentReference(reference.getIdentifier(), localFile);
>+			}
>+
>+			try {
>+				//don't have jar, check for pack.gz
>+				URL packGZURL = new URL(reference.asURL().toExternalForm() + ".pack.gz"); //$NON-NLS-1$
>+				packedRef = asLocalReference(new JarContentReference(reference.getIdentifier(), packGZURL), monitor);
>+			} catch (IOException e) {
>+				//no pack.gz
>+			}
>+		}
>+		if (packedRef == null) {
>+			//no pack.gz on server, get normal jar
>+			return asLocalReference(reference, monitor);
>+		}
>+
>+		synchronized (jarLock) {
>+			Object packedLock = getLock(packedRef.toString());
>+			synchronized (packedLock) {
>+				File tempFile = packedRef.asFile();
>+				long timeStamp = tempFile.lastModified();
>+
>+				JarProcessor processor = JarProcessor.getUnpackProcessor(null);
>+				processor.setWorkingDirectory(tempFile.getParent());
>+
>+				File packedFile = new File(tempFile.toString() + ".pack.gz"); //$NON-NLS-1$
>+				tempFile.renameTo(packedFile);
>+				//unpacking the jar will strip the ".pack.gz" and leave us back with the original filename
>+				processor.processJar(packedFile);
>+
>+				tempFile.setLastModified(timeStamp);
>+				Utilities.mapLocalFile(key, tempFile);
>+			}
>+		}
>+		return packedRef;
>+	}
> 	/*
> 	 * @see IFeatureContentProvider#getNonPluginEntryArchiveReferences(INonPluginEntry)
> 	 */
>Index: src/org/eclipse/update/core/model/SiteModel.java
>===================================================================
>RCS file: /cvsroot/eclipse/org.eclipse.update.core/src/org/eclipse/update/core/model/SiteModel.java,v
>retrieving revision 1.21
>diff -u -r1.21 SiteModel.java
>--- src/org/eclipse/update/core/model/SiteModel.java	1 Mar 2005 20:29:16 -0000	1.21
>+++ src/org/eclipse/update/core/model/SiteModel.java	7 Apr 2006 19:36:45 -0000
>@@ -45,6 +45,7 @@
> 	private URL locationURL;
> 	private String mirrorsURLString;
> 	private ConfiguredSiteModel configuredSiteModel;
>+	private boolean pack200 = false;
> 
> 	/**
> 	 * Creates an uninitialized site model object.
>@@ -447,4 +448,22 @@
> 		assertIsWriteable();
> 		this.mirrorsURLString = mirrorsURL;
> 	}
>+	
>+	/**
>+	 * Get whether or not this site may contain jars packed with pack200.
>+	 * The packed version of foo.jar, is expected to be foo.jar.pack.gz
>+	 * @return
>+	 */
>+	public boolean supportsPack200() {
>+		return pack200;
>+	}
>+	
>+	/**
>+	 * Set whether or not this site may contain jars packed with pack200
>+	 * The packed version of foo.jar is expected to be foo.jar.pack.gz
>+	 * @param pack
>+	 */
>+	public void setSupportsPack200(boolean pack){
>+		pack200 = pack;
>+	}
> }
>Index: src/org/eclipse/update/core/model/DefaultSiteParser.java
>===================================================================
>RCS file: /cvsroot/eclipse/org.eclipse.update.core/src/org/eclipse/update/core/model/DefaultSiteParser.java,v
>retrieving revision 1.70
>diff -u -r1.70 DefaultSiteParser.java
>--- src/org/eclipse/update/core/model/DefaultSiteParser.java	30 Mar 2006 02:34:37 -0000	1.70
>+++ src/org/eclipse/update/core/model/DefaultSiteParser.java	7 Apr 2006 19:36:45 -0000
>@@ -513,6 +513,11 @@
> 				site.setMirrorsURLString(mirrorsURL);
> 		}
> 		
>+		String pack200 = attributes.getValue("pack200"); //$NON-NLS-1$
>+		if(pack200 != null && new Boolean(pack200).booleanValue()){
>+			site.setSupportsPack200(true);
>+		}
>+		
> 		if ( (site instanceof ExtendedSite) && (Boolean.getBoolean(attributes.getValue("digestURL")))) { //$NON-NLS-1$
> 			ExtendedSite extendedSite = (ExtendedSite) site;
> 			extendedSite.setDigestExist(true);
>Index: src/org/eclipse/update/jarprocessor/pack-readme.html
>===================================================================
>RCS file: src/org/eclipse/update/jarprocessor/pack-readme.html
>diff -N src/org/eclipse/update/jarprocessor/pack-readme.html
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ src/org/eclipse/update/jarprocessor/pack-readme.html	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,82 @@
>+<!DOCTYPE html PUBLIC "-//w3c//dtd html 4.0 transitional//en">
>+<html>
>+<head>
>+  <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
>+  <title>Eclipse update packing tool readme</title>
>+</head>
>+<body>
>+<h1>Eclipse update packing tool</h1>
>+
>+<h3>Overview</h3>
>+The update packing tool processes a hierarchy of arbitrarily nested
>+JARs and ZIP files.  It is a generic utility that performs a depth first traversal of 
>+a nested hierarchy of ZIPs and JARs, performs various commands on
>+each of the JARs in the hierarchy, and then rebuilds the same hierarchy
>+of ZIPs and JARs again.  Currently its main functions are:
>+<ul>
>+	<li>Packing JARs using the Java 1.5 <a href="http://java.sun.com/j2se/1.5.0/docs/tooldocs/share/pack200.html">pack200</a>
>+	 command.</li>
>+	 <li>Unpacking PACK.GZs using the Java 1.5 <a href="http://java.sun.com/j2se/1.5.0/docs/tooldocs/share/unpack200.html">unpack200</a>
>+	 command.</li>
>+	 <li>Normalizing JARs for future compression by pack200. This is accomplished
>+	 by running the pack200 command with the <tt>--repack</tt> command line argument.</li>
>+	 <li>Signing JARs to allow for authentication of the origin of JARs. This is accomplished by
>+	 running a supplied command (typically the command will just be a wrapper around
>+	 the Java <a href="http://java.sun.com/j2se/1.3/docs/tooldocs/win32/jarsigner.html">jarsigner</a> tool).</li>
>+</ul>
>+The packing tool is used in the following contexts:
>+<ul>
>+	<li>During a PDE build, to prepare JARs for uploading to an Eclipse
>+	update site.  In this usage, it is used to both nomalize JAR contents
>+	(pack200 -repack), and sign JARs.</li>
>+	<li>On an update site, to convert traditional JAR content into the 
>+	compressed pack200 format.</li>
>+	<li>From an Eclipse client application during update, to convert
>+	compressed pack200 format content into executable JAR files.</li>
>+</ul>
>+<h3>Tool usage</h3>
>+To run the packing tool, you need a 1.5 JRE installed. The tool is run
>+by invoking Java as follows:
>+
>+<pre>
>+	java jarprocessor.jar [options] input
>+</pre>
>+
>+Where <tt>input</tt> is either a zip file, a directory, or a JAR (or a pack.gz file). All files ending 
>+in ".jar" or ".pack.gz" in the provided zip or directory hierarchy
>+will be processed. 
>+The following additional command line arguments are supported:
>+<ul>
>+<li>-repack : Normalize the jars using pack200 <tt>--repack</tt></li>
>+<li>-sign &lt;cmd&gt; : signs the jars by executing the provided command.  
>+The command will be provided a single argument that will be the full path of the JAR to process.
>+</li>
>+<li>-pack : for each input in JAR form, produce a corresponding output
>+in packed form.  For an input "a.jar", the output is a.jar.pack.gz.  
>+</li>
>+<li>-unpack : for each input in packed form, produce a corresponding output
>+in unpacked form.  For an input "a.jar.pack.gz", the output is "a.jar". -unpack is mutually exclusive with -repack, -pack and -sign.</li>
>+<li>-outputDir &lt;dir&gt; : The directory to put the tool's output into.  If the input was a zip file, then an output zip file will be
>+created containg all the output files.  If the input was a directory, for each input file there is a corresponding output file in the output directory. By default the current working directory is used.  If the input is in the same
>+directory as the output, the input files may be overwritten.</li>
>+</ul>
>+
>+Additionally, when the input is a zip file, it may contain a file called
>+<tt>pack.properties</tt>.  The pack.properties file supports the following values:
>+<ul>
>+<li>pack.excludes =  jarName[, jarName]* : A comma-delimited list of JARs that should not be packed or repacked.
>+</li>
>+<li>sign.excludes =  jarName[, jarName]* : A comma-delimited list of JARs that should not be signed.
>+</li>
>+<li>&lt;jarname&gt;.pack.args = option[, option]* : A comma-delimited list of additional arguments that should
>+be passed to pack200 when packing any jar with name &lt;jarname&gt;.
>+</ul>
>+</p>
>+<p>
>+<font size=-1>
>+Copyright (c) IBM Corporation and others 2006. All rights reserved. This program and the accompanying materials
>+are made available under the terms of the 
>+<a href="http://www.eclipse.org/legal/epl-v10.html">Eclipse Public License v1.0</a>.
>+</font>
>+</body>
>+</html>
>Index: src/org/eclipse/update/jarprocessor/internal/CommandStep.java
>===================================================================
>RCS file: src/org/eclipse/update/jarprocessor/internal/CommandStep.java
>diff -N src/org/eclipse/update/jarprocessor/internal/CommandStep.java
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ src/org/eclipse/update/jarprocessor/internal/CommandStep.java	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,49 @@
>+/*******************************************************************************
>+ * 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.jarprocessor.internal;
>+
>+import java.io.IOException;
>+import java.util.Properties;
>+import org.eclipse.update.jarprocessor.IProcessStep;
>+
>+/**
>+ * @author aniefer
>+ *
>+ */
>+public abstract class CommandStep implements IProcessStep {
>+	protected String command = null;
>+	protected String extension = null;
>+	protected Properties options = null;
>+	
>+	public CommandStep(Properties options, String command, String extension) {
>+		this.command = command;
>+		this.extension = extension;
>+		this.options = options;
>+	}
>+
>+	protected static int execute(String[] cmd) throws IOException {
>+		Runtime runtime = Runtime.getRuntime();
>+		Process proc = runtime.exec(cmd);
>+		try {
>+			int result = proc.waitFor();
>+			return result;
>+		} catch (InterruptedException e) {
>+			//ignore
>+		}
>+		return -1;
>+	}
>+	
>+	public Properties getOptions() {
>+		if(options == null)
>+			options = new Properties();
>+		return options;
>+	}
>+}
>Index: src/org/eclipse/update/jarprocessor/Main.java
>===================================================================
>RCS file: src/org/eclipse/update/jarprocessor/Main.java
>diff -N src/org/eclipse/update/jarprocessor/Main.java
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ src/org/eclipse/update/jarprocessor/Main.java	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,152 @@
>+/*******************************************************************************
>+ * 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.jarprocessor;
>+
>+import java.io.*;
>+import java.util.zip.ZipException;
>+import org.eclipse.update.jarprocessor.internal.*;
>+
>+/**
>+ * @author aniefer
>+ *
>+ */
>+public class Main {
>+
>+	public static class Options {
>+		public String outputDir = "."; //$NON-NLS-1$
>+		public String signCommand = null;
>+		public boolean pack = false;
>+		public boolean repack = false;
>+		public boolean unpack = false;
>+		public File input = null;
>+	}
>+
>+	private static void printUsage() {
>+		System.out.println("[-option ...]... input"); //$NON-NLS-1$
>+		System.out.println("The following options are supported:"); //$NON-NLS-1$
>+		System.out.println("-repack         normalize jars "); //$NON-NLS-1$
>+		System.out.println("-sign <command> sign jars using <command>"); //$NON-NLS-1$
>+		System.out.println("-pack           pack the jars.  pack and repack are redundant unless"); //$NON-NLS-1$
>+		System.out.println("                sign is also specified."); //$NON-NLS-1$
>+		System.out.println("-unpack         unpack pack.gz files. Unpack is mutually exclusive"); //$NON-NLS-1$
>+		System.out.println("                with repack, sign and pack."); //$NON-NLS-1$
>+		System.out.println();
>+		System.out.println("-outputDir <dir>  the output directory"); //$NON-NLS-1$
>+	}
>+
>+	public static Options processArguments(String[] args) {
>+		if (args.length == 0) {
>+			printUsage();
>+			return null;
>+		}
>+
>+		Options options = new Options();
>+		int i = 0;
>+		for (; i < args.length - 1; i++) {
>+			if (args[i].equals("-pack")) {//$NON-NLS-1$
>+				options.pack = true;
>+			} else if (args[i].equals("-unpack")) { //$NON-NLS-1$
>+				options.unpack = true;
>+			} else if (args[i].equals("-sign") && i < args.length - 2) { //$NON-NLS-1$
>+				if (args[i + 1].startsWith("-")) { //$NON-NLS-1$
>+					printUsage();
>+					return null;
>+				}
>+				options.signCommand = args[++i];
>+			} else if (args[i].equals("-repack")) { //$NON-NLS-1$
>+				options.repack = true;
>+			} else if (args[i].equals("-outputDir") && i < args.length - 2) { //$NON-NLS-1$
>+				if (args[i + 1].startsWith("-")) { //$NON-NLS-1$
>+					printUsage();
>+					return null;
>+				}
>+				options.outputDir = args[++i];
>+			}
>+		}
>+
>+		options.input = new File(args[i]);
>+
>+		String problemMessage = null;
>+		if (options.unpack) {
>+			if (!JarProcessor.canPerformUnpack()) {
>+				problemMessage = "The unpack200 command cannot be found."; //$NON-NLS-1$
>+			} else 	if (options.input.isFile() && !args[i].endsWith(".zip") && !args[i].endsWith(".pack.gz")) { //$NON-NLS-1$ //$NON-NLS-2$
>+				problemMessage = "Input file is not a pack.gz file."; //$NON-NLS-1$
>+			} else 	if (options.pack || options.repack || options.signCommand != null) {
>+				problemMessage = "Pack, repack or sign cannot be specified with unpack."; //$NON-NLS-1$
>+			}
>+		} else {
>+			if (options.input.isFile() && !args[i].endsWith(".zip") && !args[i].endsWith(".jar")) { //$NON-NLS-1$ //$NON-NLS-2$
>+				problemMessage = "Input file is not a jar file."; //$NON-NLS-1$
>+			} else	if ((options.pack || options.repack) && !JarProcessor.canPerformUnpack()) {
>+				problemMessage = "The pack200 command can not be found."; //$NON-NLS-1$
>+			}
>+		}
>+		if(problemMessage != null){
>+			System.out.println(problemMessage);
>+			System.out.println();
>+			printUsage();
>+			return null;
>+		}
>+
>+		return options;
>+	}
>+
>+	/**
>+	 * @param args
>+	 * @throws FileNotFoundException 
>+	 */
>+	public static void main(String[] args) {
>+		Options options = processArguments(args);
>+		if (options == null)
>+			return;
>+
>+		if (options.input.getName().endsWith(".zip")) { //$NON-NLS-1$
>+			ZipProcessor processor = new ZipProcessor();
>+			processor.setWorkingDirectory(options.outputDir);
>+			processor.setSignCommand(options.signCommand);
>+			processor.setPack(options.pack);
>+			processor.setRepack(options.repack || (options.pack && options.signCommand != null));
>+			processor.setUnpack(options.unpack);
>+			try {
>+				processor.processZip(options.input);
>+			} catch (ZipException e) {
>+				// TODO Auto-generated catch block
>+				e.printStackTrace();
>+			} catch (IOException e) {
>+				// TODO Auto-generated catch block
>+				e.printStackTrace();
>+			}
>+		} else {
>+			JarProcessor processor = new JarProcessor();
>+			processor.setWorkingDirectory(options.outputDir);
>+
>+			if (options.repack || (options.pack && options.signCommand != null))
>+				processor.addProcessStep(new PackUnpackStep(null));
>+
>+			if (options.signCommand != null)
>+				processor.addProcessStep(new SignCommandStep(null, options.signCommand));
>+
>+			if (options.pack)
>+				processor.addProcessStep(new PackStep(null));
>+			else if (options.unpack)
>+				processor.addProcessStep(new UnpackStep(null));
>+
>+			try {
>+				processor.process(options.input, options.unpack ? Utils.PACK_GZ_FILTER : Utils.JAR_FILTER);
>+			} catch (FileNotFoundException e) {
>+				// TODO Auto-generated catch block
>+				e.printStackTrace();
>+			}
>+		}
>+	}
>+
>+}
>Index: src/org/eclipse/update/jarprocessor/JarProcessor.java
>===================================================================
>RCS file: src/org/eclipse/update/jarprocessor/JarProcessor.java
>diff -N src/org/eclipse/update/jarprocessor/JarProcessor.java
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ src/org/eclipse/update/jarprocessor/JarProcessor.java	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,271 @@
>+/*******************************************************************************
>+ * 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.jarprocessor;
>+
>+import java.io.*;
>+import java.util.*;
>+import java.util.jar.*;
>+import org.eclipse.update.jarprocessor.internal.*;
>+
>+/**
>+ * @author aniefer
>+ *
>+ */
>+public class JarProcessor {
>+	private List steps = new ArrayList();
>+	private String workingDirectory = ""; //$NON-NLS-1$
>+	private int depth = -1;
>+
>+	static public JarProcessor getUnpackProcessor(Properties properties) {
>+		if (!canPerformUnpack())
>+			throw new UnsupportedOperationException();
>+		JarProcessor processor = new JarProcessor();
>+		processor.addProcessStep(new UnpackStep(properties));
>+		return processor;
>+	}
>+
>+	static public JarProcessor getPackProcessor(Properties properties) {
>+		if (!canPerformPack())
>+			throw new UnsupportedOperationException();
>+		JarProcessor processor = new JarProcessor();
>+		processor.addProcessStep(new PackStep(properties));
>+		return processor;
>+	}
>+
>+	static public boolean canPerformPack() {
>+		return PackStep.canPack();
>+	}
>+
>+	static public boolean canPerformUnpack() {
>+		return UnpackStep.canUnpack();
>+	}
>+
>+	public String getWorkingDirectory() {
>+		return workingDirectory;
>+	}
>+
>+	public void setWorkingDirectory(String dir) {
>+		workingDirectory = dir;
>+	}
>+
>+	public void addProcessStep(IProcessStep step) {
>+		steps.add(step);
>+	}
>+
>+	public void clearProcessSteps() {
>+		steps.clear();
>+	}
>+
>+	public void process(File input, FileFilter filter) throws FileNotFoundException {
>+		if (!input.exists())
>+			throw new FileNotFoundException();
>+
>+		File[] files = null;
>+		if (input.isDirectory()) {
>+			files = input.listFiles();
>+		} else if (filter.accept(input)) {
>+			files = new File[] {input};
>+		}
>+		for (int i = 0; i < files.length; i++) {
>+			System.out.println("Processing " + files[i].getName()); //$NON-NLS-1$
>+			if (files[i].isDirectory()) {
>+				String dir = getWorkingDirectory();
>+				setWorkingDirectory(dir + "/" + files[i].getName()); //$NON-NLS-1$
>+				process(files[i], filter);
>+				setWorkingDirectory(dir);
>+			} else if (filter.accept(files[i])) {
>+				try {
>+					processJar(files[i]);
>+				} catch (IOException e) {
>+					// TODO Auto-generated catch block
>+					e.printStackTrace();
>+				}
>+			}
>+		}
>+	}
>+
>+	/**
>+	 * Recreate a jar file.  The replacements map specifies entry names to be replaced, the replacements are
>+	 * expected to be found in directory.
>+	 * 
>+	 * @param jar - The input jar
>+	 * @param outputJar - the output
>+	 * @param replacements - map of entryName -> new entryName
>+	 * @param directory - location to find file for new entryName
>+	 * @throws IOException
>+	 */
>+	private void recreateJar(JarFile jar, JarOutputStream outputJar, Map replacements, File directory) throws IOException {
>+		InputStream in = null;
>+		try {
>+			Enumeration entries = jar.entries();
>+			for (JarEntry entry = (JarEntry) entries.nextElement(); entry != null; entry = entries.hasMoreElements() ? (JarEntry) entries.nextElement() : null) {
>+				File replacement = null;
>+				JarEntry newEntry = null;
>+				if (replacements.containsKey(entry.getName())) {
>+					String name = (String) replacements.get(entry.getName());
>+					replacement = new File(directory, name);
>+					in = new BufferedInputStream(new FileInputStream(replacement));
>+					newEntry = new JarEntry(name);
>+				} else {
>+					in = new BufferedInputStream(jar.getInputStream(entry));
>+					newEntry = new JarEntry(entry.getName());
>+				}
>+				newEntry.setTime(entry.getTime());
>+				outputJar.putNextEntry(newEntry);
>+				Utils.transferStreams(in, outputJar, false);
>+				outputJar.closeEntry();
>+				in.close();
>+
>+				//delete the nested jar file
>+				if (replacement != null) {
>+					replacement.delete();
>+				}
>+			}
>+		} finally {
>+			Utils.close(outputJar);
>+			Utils.close(jar);
>+			Utils.close(in);
>+		}
>+	}
>+
>+	private String recursionEffect(String entryName) {
>+		String result = null;
>+		for (Iterator iter = steps.iterator(); iter.hasNext();) {
>+			IProcessStep step = (IProcessStep) iter.next();
>+
>+			result = step.recursionEffect(entryName);
>+			if (result != null)
>+				entryName = result;
>+		}
>+		return result;
>+	}
>+
>+	private void extractEntries(JarFile jar, File tempDir, Map data) throws IOException {
>+		Enumeration entries = jar.entries();
>+		if (entries.hasMoreElements()) {
>+			for (JarEntry entry = (JarEntry) entries.nextElement(); entry != null; entry = entries.hasMoreElements() ? (JarEntry) entries.nextElement() : null) {
>+				String name = entry.getName();
>+				String newName = recursionEffect(name);
>+				if (newName != null) {
>+					//extract entry to temp directory
>+					File extracted = new File(tempDir, name);
>+					File parentDir = extracted.getParentFile();
>+					if (!parentDir.exists())
>+						parentDir.mkdirs();
>+
>+					InputStream in = null;
>+					OutputStream out = null;
>+					try {
>+						in = jar.getInputStream(entry);
>+						out = new BufferedOutputStream(new FileOutputStream(extracted));
>+						Utils.transferStreams(in, out, true); //this will close both streams
>+					} finally {
>+						Utils.close(in);
>+						Utils.close(out);
>+					}
>+					extracted.setLastModified(entry.getTime());
>+					data.put(name, newName);
>+
>+					//recurse
>+					String dir = getWorkingDirectory();
>+					setWorkingDirectory(parentDir.getCanonicalPath());
>+					processJar(extracted);
>+					setWorkingDirectory(dir);
>+
>+					//delete the extracted item leaving the recursion result
>+					if (!name.equals(newName))
>+						extracted.delete();
>+				}
>+			}
>+		}
>+	}
>+
>+	private File preProcess(File input, File tempDir) {
>+		File result = null;
>+		for (Iterator iter = steps.iterator(); iter.hasNext();) {
>+			IProcessStep step = (IProcessStep) iter.next();
>+			result = step.preProcess(input, tempDir);
>+			if (result != null)
>+				input = result;
>+		}
>+		return input;
>+	}
>+
>+	private File postProcess(File input, File tempDir) {
>+		File result = null;
>+		for (Iterator iter = steps.iterator(); iter.hasNext();) {
>+			IProcessStep step = (IProcessStep) iter.next();
>+			result = step.postProcess(input, tempDir);
>+			if (result != null)
>+				input = result;
>+		}
>+		return input;
>+	}
>+
>+	public void processJar(File input) throws IOException {
>+		++depth;
>+		long lastModified = input.lastModified();
>+		File workingDir = new File(getWorkingDirectory());
>+		if (!workingDir.exists())
>+			workingDir.mkdirs();
>+
>+		//pre
>+		File workingFile = preProcess(input, workingDir);
>+
>+		//Extract entries from jar and recurse on them
>+		File tempDir = null;
>+		if (depth == 0) {
>+			tempDir = new File(workingDir, "temp." + workingFile.getName()); //$NON-NLS-1$
>+		} else {
>+			File parent = workingDir.getParentFile();
>+			tempDir = new File(parent, "temp_" + depth + '_' + workingFile.getName()); //$NON-NLS-1$
>+		}
>+
>+		JarFile jar = new JarFile(workingFile, false);
>+		Map replacements = new HashMap();
>+		extractEntries(jar, tempDir, replacements);
>+
>+		//Recreate the jar with replacements.  This also has the effect of normalizing the jar, so we want to do this even if
>+		//we aren't actually replacing anything
>+		File tempJar = null;
>+		tempJar = new File(tempDir, workingFile.getName());
>+		File parent = tempJar.getParentFile();
>+		if (!parent.exists())
>+			parent.mkdirs();
>+		JarOutputStream jarOut = new JarOutputStream(new BufferedOutputStream(new FileOutputStream(tempJar)));
>+		recreateJar(jar, jarOut, replacements, tempDir);
>+
>+		jar.close();
>+		if (tempJar != null) {
>+			if (!workingFile.equals(input)) {
>+				workingFile.delete();
>+			}
>+			workingFile = tempJar;
>+		}
>+
>+		//post
>+		File result = postProcess(workingFile, workingDir);
>+		if (!result.equals(workingFile) && !workingFile.equals(input))
>+			workingFile.delete();
>+		if (!result.getParentFile().equals(workingDir)) {
>+			File finalFile = new File(workingDir, result.getName());
>+			if (finalFile.exists())
>+				finalFile.delete();
>+			result.renameTo(finalFile);
>+		}
>+
>+		if (tempDir.exists())
>+			Utils.clear(tempDir);
>+
>+		result.setLastModified(lastModified);
>+		--depth;
>+	}
>+}
>Index: src/org/eclipse/update/jarprocessor/internal/ZipProcessor.java
>===================================================================
>RCS file: src/org/eclipse/update/jarprocessor/internal/ZipProcessor.java
>diff -N src/org/eclipse/update/jarprocessor/internal/ZipProcessor.java
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ src/org/eclipse/update/jarprocessor/internal/ZipProcessor.java	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,171 @@
>+/**
>+ * 
>+ */
>+package org.eclipse.update.jarprocessor.internal;
>+
>+import java.io.*;
>+import java.util.*;
>+import java.util.zip.*;
>+import org.eclipse.update.jarprocessor.IProcessStep;
>+import org.eclipse.update.jarprocessor.JarProcessor;
>+
>+/**
>+ * @author aniefer
>+ *
>+ */
>+public class ZipProcessor {
>+
>+	private IProcessStep signStep = null;
>+	private IProcessStep packStep = null;
>+	private IProcessStep packUnpackStep = null;
>+	private IProcessStep unpackStep = null;
>+
>+	private String workingDirectory = null;
>+	private Properties properties = null;
>+	private Set packExclusions = null;
>+	private Set signExclusions = null;
>+	private String command = null;
>+	private boolean packing = false;
>+	private boolean signing = false;
>+	private boolean repacking = false;
>+	private boolean unpacking = false;
>+
>+	public void setWorkingDirectory(String dir) {
>+		workingDirectory = dir;
>+	}
>+
>+	public String getWorkingDirectory() {
>+		if (workingDirectory == null)
>+			workingDirectory = "."; //$NON-NLS-1$
>+		return workingDirectory;
>+	}
>+
>+	public void setSignCommand(String command) {
>+		this.command = command;
>+		this.signing = (command != null);
>+	}
>+
>+	public void setPack(boolean pack) {
>+		this.packing = pack;
>+	}
>+
>+	public void setRepack(boolean repack) {
>+		this.repacking = repack;
>+	}
>+
>+	public void setUnpack(boolean unpack) {
>+		this.unpacking = unpack;
>+	}
>+
>+	public void processZip(File zipFile) throws ZipException, IOException {
>+		ZipFile zip = new ZipFile(zipFile);
>+		initialize(zip);
>+
>+		String extension = unpacking ? "pack.gz" : ".jar"; //$NON-NLS-1$ //$NON-NLS-2$
>+		File tempDir = new File(getWorkingDirectory(), "temp_" + zipFile.getName()); //$NON-NLS-1$
>+		JarProcessor processor = new JarProcessor();
>+		processor.setWorkingDirectory(tempDir.getCanonicalPath());
>+		if (unpacking) {
>+			processor.addProcessStep(unpackStep);
>+		}
>+
>+		File outputFile = new File(getWorkingDirectory(), zipFile.getName() + ".temp"); //$NON-NLS-1$
>+		File parent = outputFile.getParentFile();
>+		if (!parent.exists())
>+			parent.mkdirs();
>+		ZipOutputStream zipOut = new ZipOutputStream(new FileOutputStream(outputFile));
>+		Enumeration entries = zip.entries();
>+		if (entries.hasMoreElements()) {
>+			for (ZipEntry entry = (ZipEntry) entries.nextElement(); entry != null; entry = entries.hasMoreElements() ? (ZipEntry) entries.nextElement() : null) {
>+				String name = entry.getName();
>+
>+				InputStream entryStream = zip.getInputStream(entry);
>+
>+				boolean pack = packing && !packExclusions.contains(name);
>+				boolean sign = signing && !signExclusions.contains(name);
>+				boolean repack = repacking && !packExclusions.contains(name);
>+
>+				File extractedFile = null;
>+
>+				if (entry.getName().endsWith(extension) && (pack || sign || repack || unpacking)) {
>+					extractedFile = new File(tempDir, name);
>+					parent = extractedFile.getParentFile();
>+					if (!parent.exists())
>+						parent.mkdirs();
>+					FileOutputStream extracted = new FileOutputStream(extractedFile);
>+					Utils.transferStreams(entryStream, extracted, true);
>+
>+					if (unpacking) {
>+						processor.processJar(extractedFile);
>+						name = name.substring(0, name.length() - Utils.PACKED_SUFFIX.length());
>+						extractedFile = new File(tempDir, name);
>+					} else {
>+						processor.clearProcessSteps();
>+						if (repack)
>+							processor.addProcessStep(packUnpackStep);
>+						if (sign)
>+							processor.addProcessStep(signStep);
>+						processor.processJar(extractedFile);
>+						extractedFile = new File(tempDir, extractedFile.getName());
>+						if (pack) {
>+							processor.clearProcessSteps();
>+							processor.addProcessStep(packStep);
>+							processor.processJar(extractedFile);
>+
>+							File modifiedFile = new File(tempDir, extractedFile.getName() + Utils.PACKED_SUFFIX);
>+							ZipEntry zipEntry = new ZipEntry(name + Utils.PACKED_SUFFIX);
>+							entryStream = new FileInputStream(modifiedFile);
>+							zipOut.putNextEntry(zipEntry);
>+							Utils.transferStreams(entryStream, zipOut, false);
>+							entryStream.close();
>+							Utils.clear(modifiedFile);
>+						}
>+					}
>+					entryStream = new FileInputStream(extractedFile);
>+				}
>+				ZipEntry newEntry = new ZipEntry(name);
>+				zipOut.putNextEntry(newEntry);
>+				Utils.transferStreams(entryStream, zipOut, false);
>+				zipOut.closeEntry();
>+				entryStream.close();
>+
>+				if (extractedFile != null)
>+					Utils.clear(extractedFile);
>+			}
>+
>+		}
>+		zipOut.close();
>+		zip.close();
>+
>+		File finalFile = new File(getWorkingDirectory(), zipFile.getName());
>+		if (finalFile.exists())
>+			finalFile.delete();
>+		outputFile.renameTo(finalFile);
>+		Utils.clear(tempDir);
>+	}
>+
>+	private void initialize(ZipFile zip) {
>+		ZipEntry entry = zip.getEntry("pack.properties"); //$NON-NLS-1$
>+		properties = new Properties();
>+		if (entry != null) {
>+			InputStream stream = null;
>+			try {
>+				stream = zip.getInputStream(entry);
>+				properties.load(stream);
>+			} catch (IOException e) {
>+				// TODO Auto-generated catch block
>+				e.printStackTrace();
>+			} finally {
>+				Utils.close(stream);
>+			}
>+		}
>+
>+		packExclusions = Utils.getPackExclusions(properties);
>+		signExclusions = Utils.getSignExclusions(properties);
>+
>+		packUnpackStep = new PackUnpackStep(properties);
>+		packStep = new PackStep(properties);
>+		signStep = new SignCommandStep(properties, command);
>+		unpackStep = new UnpackStep(properties);
>+	}
>+}
>Index: src/org/eclipse/update/jarprocessor/internal/Utils.java
>===================================================================
>RCS file: src/org/eclipse/update/jarprocessor/internal/Utils.java
>diff -N src/org/eclipse/update/jarprocessor/internal/Utils.java
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ src/org/eclipse/update/jarprocessor/internal/Utils.java	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,171 @@
>+/**
>+ * 
>+ */
>+package org.eclipse.update.jarprocessor.internal;
>+
>+import java.io.*;
>+import java.util.*;
>+import java.util.jar.JarFile;
>+
>+/**
>+ * @author aniefer
>+ *
>+ */
>+public class Utils {
>+	public static final String PACK200_PROPERTY = "org.eclipse.update.jarprocessor.pack200"; //$NON-NLS-1$
>+	public static final String JRE = "@jre"; //$NON-NLS-1$
>+	public static final String PATH = "@path"; //$NON-NLS-1$
>+	public static final String NONE = "@none"; //$NON-NLS-1$
>+
>+	public static final String PACKED_SUFFIX = ".pack.gz"; //$NON-NLS-1$
>+	public static final String JAR_SUFFIX = ".jar"; //$NON-NLS-1$
>+
>+	public static final FileFilter JAR_FILTER = new FileFilter() {
>+		public boolean accept(File pathname) {
>+			return pathname.isFile() && pathname.getName().endsWith(".jar"); //$NON-NLS-1$
>+		}
>+	};
>+
>+	public static final FileFilter PACK_GZ_FILTER = new FileFilter() {
>+		public boolean accept(File pathname) {
>+			return pathname.isFile() && pathname.getName().endsWith(PACKED_SUFFIX);
>+		}
>+	};
>+
>+	public static void close(Object stream) {
>+		if (stream != null) {
>+			try {
>+				if (stream instanceof InputStream)
>+					((InputStream) stream).close();
>+				else if (stream instanceof OutputStream)
>+					((OutputStream) stream).close();
>+				else if (stream instanceof JarFile)
>+					((JarFile) stream).close();
>+			} catch (IOException e) {
>+				//ignore
>+			}
>+		}
>+	}
>+
>+	/**
>+	 * get the set of commands to try to execute pack/unpack 
>+	 * @param cmd, the command, either "pack200" or "unpack200"
>+	 * @return String [] or null
>+	 */
>+	public static String[] getPack200Commands(String cmd) {
>+		String[] locations = null;
>+		String prop = System.getProperty(PACK200_PROPERTY);
>+		String javaHome = System.getProperty("java.home"); //$NON-NLS-1$
>+		if (NONE.equals(prop)) {
>+			return null;
>+		} else if (JRE.equals(prop)) {
>+			locations = new String[] {javaHome + "/bin/" + cmd}; //$NON-NLS-1$
>+		} else if (PATH.equals(prop)) {
>+			locations = new String[] {cmd};
>+		} else if (prop == null) {
>+			locations = new String[] {javaHome + "/bin/" + cmd, cmd}; //$NON-NLS-1$ 
>+		} else {
>+			locations = new String[] {prop + "/" + cmd}; //$NON-NLS-1$
>+		}
>+		return locations;
>+	}
>+
>+	/**
>+	 * Transfers all available bytes from the given input stream to the given
>+	 * output stream. Closes both streams if close == true, regardless of failure. 
>+	 * Flushes the destination stream if close == false
>+	 * 
>+	 * @param source
>+	 * @param destination
>+	 * @param close 
>+	 * @throws IOException
>+	 */
>+	public static void transferStreams(InputStream source, OutputStream destination, boolean close) throws IOException {
>+		source = new BufferedInputStream(source);
>+		destination = new BufferedOutputStream(destination);
>+		try {
>+			byte[] buffer = new byte[8192];
>+			while (true) {
>+				int bytesRead = -1;
>+				if ((bytesRead = source.read(buffer)) == -1)
>+					break;
>+				destination.write(buffer, 0, bytesRead);
>+			}
>+		} finally {
>+			if (close) {
>+				close(source);
>+				close(destination);
>+			} else {
>+				destination.flush();
>+			}
>+		}
>+	}
>+
>+	/**
>+	 * Deletes all the files and directories from the given root down (inclusive).
>+	 * Returns false if we could not delete some file or an exception occurred
>+	 * at any point in the deletion.
>+	 * Even if an exception occurs, a best effort is made to continue deleting.
>+	 */
>+	public static boolean clear(java.io.File root) {
>+		boolean result = clearChildren(root);
>+		try {
>+			if (root.exists())
>+				result &= root.delete();
>+		} catch (Exception e) {
>+			result = false;
>+		}
>+		return result;
>+	}
>+
>+	/**
>+	 * Deletes all the files and directories from the given root down, except for 
>+	 * the root itself.
>+	 * Returns false if we could not delete some file or an exception occurred
>+	 * at any point in the deletion.
>+	 * Even if an exception occurs, a best effort is made to continue deleting.
>+	 */
>+	public static boolean clearChildren(java.io.File root) {
>+		boolean result = true;
>+		if (root.isDirectory()) {
>+			String[] list = root.list();
>+			// for some unknown reason, list() can return null.  
>+			// Just skip the children If it does.
>+			if (list != null)
>+				for (int i = 0; i < list.length; i++)
>+					result &= clear(new java.io.File(root, list[i]));
>+		}
>+		return result;
>+	}
>+
>+	public static Set getPackExclusions(Properties properties) {
>+		if (properties == null)
>+			return Collections.EMPTY_SET;
>+
>+		String packExcludes = properties.getProperty("pack.excludes"); //$NON-NLS-1$
>+		if (packExcludes != null) {
>+			String[] excludes = packExcludes.split(",\\s*"); //$NON-NLS-1$
>+			Set packExclusions = new HashSet();
>+			for (int i = 0; i < excludes.length; i++) {
>+				packExclusions.add(excludes[i]);
>+			}
>+			return packExclusions;
>+		}
>+		return Collections.EMPTY_SET;
>+	}
>+
>+	public static Set getSignExclusions(Properties properties) {
>+		if (properties == null)
>+			return Collections.EMPTY_SET;
>+		String signExcludes = properties.getProperty("sign.excludes"); //$NON-NLS-1$
>+		if (signExcludes != null) {
>+			String[] excludes = signExcludes.split(",\\s*"); //$NON-NLS-1$
>+			Set signExclusions = new HashSet();
>+			for (int i = 0; i < excludes.length; i++) {
>+				signExclusions.add(excludes[i]);
>+			}
>+			return signExclusions;
>+		}
>+		return Collections.EMPTY_SET;
>+	}
>+}
>Index: src/org/eclipse/update/jarprocessor/jarprocessor.jardesc
>===================================================================
>RCS file: src/org/eclipse/update/jarprocessor/jarprocessor.jardesc
>diff -N src/org/eclipse/update/jarprocessor/jarprocessor.jardesc
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ src/org/eclipse/update/jarprocessor/jarprocessor.jardesc	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,22 @@
>+<?xml version="1.0" encoding="UTF-8"?>
>+<jardesc>
>+    <jar path="org.eclipse.update.core/jarprocessor.jar"/>
>+    <options overwrite="false" compress="true" exportErrors="true" exportWarnings="true" saveDescription="false" descriptionLocation="/org.eclipse.update.core/src/org/eclipse/update/jarprocessor/jarprocessor.jardesc" useSourceFolders="false" buildIfNeeded="true" includeDirectoryEntries="false" storeRefactorings="false"/>
>+    <refactoring structuralOnly="false" deprecationInfo="true"/>
>+    <selectedProjects>
>+        <project name="org.eclipse.update.core"/>
>+    </selectedProjects>
>+    <manifest manifestVersion="1.0" usesManifest="true" reuseManifest="false" saveManifest="false" generateManifest="true" manifestLocation="" mainClassHandleIdentifier="=org.eclipse.update.core/src&lt;org.eclipse.update.jarprocessor{Main.java[Main">
>+        <sealing sealJar="false">
>+            <packagesToSeal/>
>+            <packagesToUnSeal/>
>+        </sealing>
>+    </manifest>
>+    <selectedElements exportClassFiles="true" exportOutputFolder="false" exportJavaFiles="true">
>+        <javaElement handleIdentifier="=org.eclipse.update.core/src&lt;org.eclipse.update.jarprocessor{JarProcessor.java"/>
>+        <javaElement handleIdentifier="=org.eclipse.update.core/src&lt;org.eclipse.update.jarprocessor.internal"/>
>+        <javaElement handleIdentifier="=org.eclipse.update.core/src&lt;org.eclipse.update.jarprocessor{IProcessStep.java"/>
>+        <file path="/org.eclipse.update.core/src/org/eclipse/update/jarprocessor/pack-readme.html"/>
>+        <javaElement handleIdentifier="=org.eclipse.update.core/src&lt;org.eclipse.update.jarprocessor{Main.java"/>
>+    </selectedElements>
>+</jardesc>
>Index: src/org/eclipse/update/jarprocessor/IProcessStep.java
>===================================================================
>RCS file: src/org/eclipse/update/jarprocessor/IProcessStep.java
>diff -N src/org/eclipse/update/jarprocessor/IProcessStep.java
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ src/org/eclipse/update/jarprocessor/IProcessStep.java	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,47 @@
>+/*******************************************************************************
>+ * 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.jarprocessor;
>+
>+import java.io.File;
>+
>+/**
>+ * @author aniefer
>+ *
>+ */
>+public interface IProcessStep {
>+	
>+	/**
>+	 * The effect of this processing step if the JarProcessor was to recurse on this entry.
>+	 * Return null if this step will not do anything with this entry.
>+	 * Return the new entryName if this step will modify this entry on recursion.
>+	 * @param entryName
>+	 * @return
>+	 */
>+	String recursionEffect(String entryName);
>+	
>+	/**
>+	 * Perform some processing on the input file before the JarProcessor considers the entries for recursion.
>+	 *  return the file containing the result of the processing
>+	 * @param input
>+	 * @param workingDirectory
>+	 * @return
>+	 */
>+	File preProcess(File input, File workingDirectory);
>+	
>+	/**
>+	 * Perform some processing on the input file after the JarProcessor returns from recursion
>+	 * return the file containing the result of the processing
>+	 * @param input
>+	 * @param workingDirectory
>+	 * @return
>+	 */
>+	File postProcess(File input, File workingDirectory);
>+}
>Index: src/org/eclipse/update/jarprocessor/internal/PackUnpackStep.java
>===================================================================
>RCS file: src/org/eclipse/update/jarprocessor/internal/PackUnpackStep.java
>diff -N src/org/eclipse/update/jarprocessor/internal/PackUnpackStep.java
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ src/org/eclipse/update/jarprocessor/internal/PackUnpackStep.java	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,84 @@
>+/*******************************************************************************
>+ * 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.jarprocessor.internal;
>+
>+import java.io.File;
>+import java.io.IOException;
>+import java.util.Properties;
>+import java.util.Set;
>+
>+/**
>+ * @author aniefer
>+ *
>+ */
>+public class PackUnpackStep extends PackStep {
>+	private Set exclusions = null;
>+//	private PackStep pack = null;
>+//	private UnpackStep unpack = null;
>+	
>+	public PackUnpackStep(Properties options) {
>+		super(options);
>+		exclusions = Utils.getPackExclusions(options);
>+//		pack = new PackStep(options);
>+//		unpack = new UnpackStep(options);
>+	}
>+
>+	public String recursionEffect(String entryName) {
>+		if (canPack() && entryName.endsWith(".jar") &&  !exclusions.contains(entryName)) { //$NON-NLS-1$
>+			return entryName;
>+		}
>+		return null;
>+	}
>+
>+	/* (non-Javadoc)
>+	 * @see org.eclipse.update.jarprocessor.IProcessStep#preProcess(java.io.File, java.io.File)
>+	 */
>+	public File postProcess(File input, File workingDirectory) {
>+		if (canPack() && command != null) {
>+			File tempFile = new File(workingDirectory, "temp_" + input.getName()); //$NON-NLS-1$
>+			try {
>+				String[] tmp = getCommand(input, tempFile);
>+				String[] cmd = new String[tmp.length + 1];
>+				cmd[0] = tmp[0];
>+				cmd[1] = "-r"; //$NON-NLS-1$
>+				System.arraycopy(tmp, 1, cmd, 2, tmp.length - 1);
>+
>+				int result = execute(cmd);
>+				if (result == 0 && tempFile.exists()) {
>+					File finalFile = new File(workingDirectory, input.getName());
>+					if(finalFile.exists())
>+						finalFile.delete();
>+					tempFile.renameTo(finalFile);
>+					return finalFile;
>+				}
>+			} catch (IOException e) {
>+				//didn't work
>+				return null;
>+			}
>+		}
>+		return null;
>+	}
>+//	public File postProcess(File input, File workingDirectory){
>+//		if(PackStep.canPack() && UnpackStep.canUnpack() ){
>+//			File packed = pack.postProcess(input, workingDirectory);
>+//			return unpack.preProcess(packed, workingDirectory);
>+//		}
>+//		return null;
>+//	}
>+
>+	/* (non-Javadoc)
>+	 * @see org.eclipse.update.jarprocessor.IProcessStep#postProcess(java.io.File, java.io.File)
>+	 */
>+	public File preProcess(File input, File workingDirectory) {
>+		return null;
>+	}
>+
>+}
>Index: src/org/eclipse/update/jarprocessor/internal/SignCommandStep.java
>===================================================================
>RCS file: src/org/eclipse/update/jarprocessor/internal/SignCommandStep.java
>diff -N src/org/eclipse/update/jarprocessor/internal/SignCommandStep.java
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ src/org/eclipse/update/jarprocessor/internal/SignCommandStep.java	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,87 @@
>+/**
>+ * 
>+ */
>+package org.eclipse.update.jarprocessor.internal;
>+
>+import java.io.*;
>+import java.util.*;
>+import java.util.jar.*;
>+
>+/**
>+ * @author aniefer
>+ *
>+ */
>+public class SignCommandStep extends CommandStep {
>+	private Set exclusions = null;
>+
>+	public SignCommandStep(Properties options, String command) {
>+		super(options, command, ".jar"); //$NON-NLS-1$
>+		exclusions = Utils.getSignExclusions(options);
>+	}
>+
>+	/* (non-Javadoc)
>+	 * @see org.eclipse.update.jarprocessor.IProcessStep#recursionEffect(java.lang.String)
>+	 */
>+	public String recursionEffect(String entryName) {
>+		if (entryName.endsWith(extension) && !exclusions.contains(entryName))
>+			return entryName;
>+		return null;
>+	}
>+
>+	/* (non-Javadoc)
>+	 * @see org.eclipse.update.jarprocessor.IProcessStep#preProcess(java.io.File, java.io.File)
>+	 */
>+	public File preProcess(File input, File workingDirectory) {
>+		return null;
>+	}
>+
>+	/* (non-Javadoc)
>+	 * @see org.eclipse.update.jarprocessor.IProcessStep#postProcess(java.io.File, java.io.File)
>+	 */
>+	public File postProcess(File input, File workingDirectory) {
>+		if (command != null) {
>+			try {
>+				String[] cmd = new String[] {command, input.getCanonicalPath()};
>+				int result = execute(cmd);
>+				if (result == 0) {
>+					normalize(input, workingDirectory);
>+					return input;
>+				}
>+			} catch (IOException e) {
>+				//boo
>+				e.printStackTrace();
>+			}
>+		}
>+		return null;
>+	}
>+
>+	private void normalize(File input, File workingDirectory) {
>+		try {
>+			File tempJar = new File(workingDirectory, "temp_" + input.getName()); //$NON-NLS-1$
>+			JarFile jar = new JarFile(input);
>+			JarOutputStream jarOut = new JarOutputStream(new BufferedOutputStream(new FileOutputStream(tempJar)));
>+			InputStream in = null;
>+			try {
>+				Enumeration entries = jar.entries();
>+				for (JarEntry entry = (JarEntry) entries.nextElement(); entry != null; entry = entries.hasMoreElements() ? (JarEntry) entries.nextElement() : null) {
>+					JarEntry newEntry = new JarEntry(entry.getName());
>+					newEntry.setTime(entry.getTime());
>+					in = new BufferedInputStream(jar.getInputStream(entry));
>+					jarOut.putNextEntry(newEntry);
>+					Utils.transferStreams(in, jarOut, false);
>+					jarOut.closeEntry();
>+					in.close();
>+				}
>+			} finally {
>+				Utils.close(jarOut);
>+				Utils.close(jar);
>+				Utils.close(in);
>+			}
>+			tempJar.setLastModified(input.lastModified());
>+			input.delete();
>+			tempJar.renameTo(input);
>+		} catch (IOException e) {
>+			//boo
>+		}
>+	}
>+}
>Index: src/org/eclipse/update/jarprocessor/internal/UnpackStep.java
>===================================================================
>RCS file: src/org/eclipse/update/jarprocessor/internal/UnpackStep.java
>diff -N src/org/eclipse/update/jarprocessor/internal/UnpackStep.java
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ src/org/eclipse/update/jarprocessor/internal/UnpackStep.java	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,109 @@
>+/*******************************************************************************
>+ * 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.jarprocessor.internal;
>+
>+import java.io.File;
>+import java.io.IOException;
>+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 command = 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;
>+			command = null;
>+			return false;
>+		}
>+
>+		int result;
>+		for (int i = 0; i < locations.length; i++) {
>+			if (locations[i] == null)
>+				continue;
>+			try {
>+				result = execute(new String[] {locations[i], "-V"}); //$NON-NLS-1$
>+				if (result == 0) {
>+					command = locations[i];
>+					canUnpack = Boolean.TRUE;
>+					return true;
>+				}
>+			} catch (IOException e) {
>+				//no good
>+			}
>+		}
>+
>+		canUnpack = Boolean.FALSE;
>+		return false;
>+	}
>+
>+	public UnpackStep(Properties options) {
>+		super(options, null, null);
>+	}
>+
>+	/* (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) {
>+		if (canUnpack() && command != 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[] {command, options, input.getCanonicalPath(), unpacked.getCanonicalPath()};
>+					} else {
>+						cmd = new String[] {command, input.getCanonicalPath(), unpacked.getCanonicalPath()};
>+					}
>+					execute(cmd);
>+				} catch (IOException e) {
>+					//didn't work
>+					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) {
>+		return null;
>+	}
>+}
>Index: src/org/eclipse/update/jarprocessor/internal/PackStep.java
>===================================================================
>RCS file: src/org/eclipse/update/jarprocessor/internal/PackStep.java
>diff -N src/org/eclipse/update/jarprocessor/internal/PackStep.java
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ src/org/eclipse/update/jarprocessor/internal/PackStep.java	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,101 @@
>+/*******************************************************************************
>+ * 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.jarprocessor.internal;
>+
>+import java.io.File;
>+import java.io.IOException;
>+import java.util.*;
>+
>+public class PackStep extends CommandStep {
>+
>+	protected static String command = null;
>+	private static Boolean canPack = null;
>+
>+	private Set exclusions = Collections.EMPTY_SET;
>+
>+	public static boolean canPack() {
>+		if (canPack != null)
>+			return canPack.booleanValue();
>+
>+		String[] locations = Utils.getPack200Commands("pack200"); //$NON-NLS-1$
>+		if (locations == null) {
>+			canPack = Boolean.FALSE;
>+			command = null;
>+			return false;
>+		}
>+
>+		int result;
>+		for (int i = 0; i < locations.length; i++) {
>+			if (locations[i] == null)
>+				continue;
>+			try {
>+				result = execute(new String[] {locations[i], "-V"}); //$NON-NLS-1$
>+				if (result == 0) {
>+					command = locations[i];
>+					canPack = Boolean.TRUE;
>+					return true;
>+				}
>+			} catch (IOException e) {
>+				//no good
>+			}
>+		}
>+
>+		canPack = Boolean.FALSE;
>+		return false;
>+	}
>+
>+	public PackStep(Properties options) {
>+		super(options, null, null);
>+		exclusions = Utils.getPackExclusions(options);
>+	}
>+
>+	public String recursionEffect(String entryName) {
>+		if (canPack() && entryName.endsWith(".jar") && !exclusions.contains(entryName)) { //$NON-NLS-1$
>+			return entryName + Utils.PACKED_SUFFIX;
>+		}
>+		return null;
>+	}
>+
>+	public File preProcess(File input, File workingDirectory) {
>+		return null;
>+	}
>+
>+	public File postProcess(File input, File workingDirectory) {
>+		if (canPack() && command != null) {
>+			File outputFile = new File(workingDirectory, input.getName() + Utils.PACKED_SUFFIX);
>+			try {
>+				String[] cmd = getCommand(input, outputFile);
>+				execute(cmd);
>+			} catch (IOException e) {
>+				//didn't work
>+				return null;
>+			}
>+			return outputFile;
>+		}
>+		return null;
>+	}
>+
>+	protected String[] getCommand(File input, File outputFile) throws IOException {
>+		String[] cmd = null;
>+		String options = getOptions().getProperty(input.getName() + ".pack.args"); //$NON-NLS-1$
>+		if (options != null) {
>+			String[] args = options.split(",\\s*"); //$NON-NLS-1$
>+			cmd = new String[3 + args.length];
>+			cmd[0] = command;
>+			System.arraycopy(args, 0, cmd, 1, args.length);
>+			cmd[cmd.length - 2] = outputFile.getCanonicalPath();
>+			cmd[cmd.length - 1] = input.getCanonicalPath();
>+		} else {
>+			cmd = new String[] {command, outputFile.getCanonicalPath(), input.getCanonicalPath()};
>+		}
>+		return cmd;
>+	}
>+}

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Attachments on bug 127375: 37769 | 37820 | 38035 | 38421 | 38861 | 39181 | 39196