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/*******************************************************************************
* Copyright (c) 2005, 2009 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.core.runtime.internal.adaptor;
import org.eclipse.osgi.storage.bundlefile.BundleEntry;
import java.io.IOException;
import java.io.InputStream;
import java.util.jar.Manifest;
import org.eclipse.osgi.baseadaptor.BaseData;
import org.eclipse.osgi.baseadaptor.loader.*;
import org.eclipse.osgi.framework.util.KeyedElement;
public class ClasspathManifest implements KeyedElement {
public static final Object KEY = new Object();
public static final int HASHCODE = KEY.hashCode();
private Manifest manifest;
private boolean initialized = false;
public int getKeyHashCode() {
return HASHCODE;
}
public boolean compare(KeyedElement other) {
return other.getKey() == KEY;
}
public Object getKey() {
return KEY;
}
public synchronized Manifest getManifest(ClasspathEntry cpEntry, ClasspathManager loader) {
if (initialized)
return manifest;
if (!hasPackageInfo(cpEntry, loader)) {
initialized = true;
manifest = null;
return manifest;
}
BundleEntry mfEntry = cpEntry.getBundleFile().getEntry(org.eclipse.osgi.framework.internal.core.Constants.OSGI_BUNDLE_MANIFEST);
if (mfEntry != null) {
InputStream manIn = null;
try {
try {
manIn = mfEntry.getInputStream();
manifest = new Manifest(manIn);
} finally {
if (manIn != null)
manIn.close();
}
} catch (IOException e) {
// do nothing
}
}
initialized = true;
return manifest;
}
private boolean hasPackageInfo(ClasspathEntry cpEntry, ClasspathManager loader) {
BaseData bundledata = null;
if (cpEntry.getBundleFile() == loader.getBaseData().getBundleFile())
bundledata = loader.getBaseData();
if (bundledata == null) {
FragmentClasspath[] fragCPs = loader.getFragmentClasspaths();
if (fragCPs != null)
for (int i = 0; i < fragCPs.length; i++)
if (cpEntry.getBundleFile() == fragCPs[i].getBundleData().getBundleFile()) {
bundledata = fragCPs[i].getBundleData();
break;
}
}
if (bundledata == null)
return true;
EclipseStorageHook storageHook = (EclipseStorageHook) bundledata.getStorageHook(EclipseStorageHook.KEY);
return storageHook == null ? true : storageHook.hasPackageInfo();
}
}
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