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/*******************************************************************************
* Copyright (c) 2001, 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 Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.j2ee.commonarchivecore.internal.util;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;
import java.util.jar.Attributes;
import java.util.jar.JarFile;
import java.util.jar.Manifest;
import org.eclipse.jem.util.logger.proxy.Logger;
import org.eclipse.jst.j2ee.commonarchivecore.internal.helpers.RuntimeClasspathEntry;
import org.eclipse.jst.j2ee.commonarchivecore.internal.helpers.RuntimeClasspathEntryImpl;
import com.ibm.icu.util.StringTokenizer;
public class ClasspathUtil {
public static void processManifest(String inPath, List rtClasspath, Set processedPaths) {
ArrayList paths = getManifestPaths(inPath);
for (int i = 0; i < paths.size(); i++) {
RuntimeClasspathEntry entry = (RuntimeClasspathEntry) paths.get(i);
if (!processedPaths.contains(entry)) {
processedPaths.add(entry);
rtClasspath.add(entry);
processManifest(entry.getAbsolutePath(), rtClasspath, processedPaths);
}
}
}
protected static RuntimeClasspathEntry createRuntimeClasspathEntry(String absolutePath, String manifestValue) {
RuntimeClasspathEntry entry = new RuntimeClasspathEntryImpl();
entry.setAbsolutePath(absolutePath);
entry.setManifestValue(manifestValue);
return entry;
}
protected static ArrayList getManifestPaths(String path) {
ArrayList manifestPaths = new ArrayList();
File f = new File(path);
if (f.exists()) {
if (f.isDirectory()) {
File manifestFile = new File(path + File.separator + "META-INF" + File.separator + "MANIFEST.MF"); //$NON-NLS-1$ //$NON-NLS-2$
if (manifestFile.exists()) {
FileInputStream inputStream = null;
try {
inputStream = new FileInputStream(manifestFile);
Manifest manifest = new Manifest(inputStream);
manifestPaths = getManifestClassPaths(manifest, f.getParent());
} catch (IOException e) {
//Ignore
} finally {
if (null != inputStream) {
try {
inputStream.close();
} catch (IOException ex) {
Logger.getLogger().logError(ex);
}
}
}
}
} else {
JarFile jarFile = null;
try {
jarFile = new JarFile(f);
Manifest manifest = jarFile.getManifest();
if (manifest != null)
manifestPaths = getManifestClassPaths(manifest, f.getParent());
} catch (IOException e) {
//Ignore
} finally {
if (jarFile != null)
try {
jarFile.close();
} catch (IOException ex) {
//Ignore
}
}
}
}
return manifestPaths;
}
protected static ArrayList getManifestClassPaths(Manifest manifest, String archivePath) {
ArrayList pathList = new ArrayList();
Attributes main = manifest.getMainAttributes();
String classPath = main.getValue(Attributes.Name.CLASS_PATH);
if (classPath != null) {
StringTokenizer st = new StringTokenizer(classPath, " "); //$NON-NLS-1$
while (st.hasMoreTokens()) {
String token = st.nextToken();
String path = archivePath + File.separator + token;
path = normalizePath(path);
if (new File(path).exists()) {
pathList.add(createRuntimeClasspathEntry(path, token));
}
}
}
return pathList;
}
public static String normalizePath(String path) {
File f = new File(path);
try {
f = f.getCanonicalFile();
} catch (Exception ex) {
//Ignore
}
return f.getPath();
}
}
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