| /******************************************************************************* |
| * Copyright (c) 2003, 2005 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.osgi.framework.internal.defaultadaptor; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import org.eclipse.osgi.framework.adaptor.core.AbstractBundleData; |
| import org.eclipse.osgi.framework.debug.Debug; |
| import org.osgi.framework.BundleException; |
| |
| /** |
| * The <code>BundleData</code> represents a single bundle that is persistently |
| * stored by a <code>FrameworkAdaptor</code>. A <code>BundleData</code> creates |
| * the ClassLoader for a bundle, finds native libraries installed in the |
| * FrameworkAdaptor for the bundle, creates data files for the bundle, |
| * used to access bundle entries, manifest information, and getting and saving |
| * metadata. |
| * |
| */ |
| public class DefaultBundleData extends AbstractBundleData { |
| /** |
| * Read data from an existing directory. |
| * This constructor is used by getInstalledBundles. |
| * |
| * @throws NumberFormatException if the directory is not a |
| * number, the directory contains a ".delete" file or |
| * the directory does not contain a ".bundle" file. |
| * @throws IOException If an error occurs initializing the bundle data. |
| */ |
| public void initializeExistingBundle() throws BundleException, IOException { |
| File delete = new File(getBundleStoreDir(), ".delete"); //$NON-NLS-1$ |
| |
| /* and the directory is not marked for delete */ |
| if (delete.exists()) |
| throw new IOException(); |
| |
| createBaseBundleFile(); |
| |
| loadFromManifest(); |
| } |
| |
| /** |
| * Constructs a DefaultBundleData for the DefaultAdaptor. |
| * |
| * @param adaptor the DefaultAdaptor for this DefaultBundleData |
| * @param id the Bundle ID for this DefaultBundleData |
| */ |
| public DefaultBundleData(DefaultAdaptor adaptor, long id) { |
| super(adaptor, id); |
| } |
| |
| public String toString() { |
| return getLocation(); |
| } |
| |
| /** |
| * Save the bundle data in the data file. |
| * |
| * @throws IOException if a write error occurs. |
| */ |
| public synchronized void save() throws IOException { |
| if (adaptor.canWrite()) |
| ((DefaultAdaptor) adaptor).saveMetaDataFor(this); |
| } |
| |
| /** |
| * Return the top level bundle directory. |
| * |
| * @return Top level bundle directory. |
| */ |
| protected File createBundleStoreDir() { |
| if (!getBundleStoreDir().exists() && !getBundleStoreDir().mkdirs()) { |
| if (Debug.DEBUG && Debug.DEBUG_GENERAL) { |
| Debug.println("Unable to create bundle store directory: " + getBundleStoreDir().getPath()); //$NON-NLS-1$ |
| } |
| } |
| return getBundleStoreDir(); |
| } |
| |
| } |