| /******************************************************************************* |
| * Copyright (c) 2005, 2010 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.internal.baseadaptor; |
| |
| import java.io.*; |
| import java.net.URL; |
| import java.net.URLConnection; |
| import java.util.Dictionary; |
| import org.eclipse.osgi.baseadaptor.BaseData; |
| import org.eclipse.osgi.baseadaptor.hooks.StorageHook; |
| import org.eclipse.osgi.framework.adaptor.BundleData; |
| import org.eclipse.osgi.framework.adaptor.BundleOperation; |
| import org.eclipse.osgi.framework.internal.core.ReferenceInputStream; |
| import org.eclipse.osgi.util.NLS; |
| import org.osgi.framework.*; |
| |
| public class BundleUpdate implements BundleOperation { |
| private final BaseData data; |
| private final URLConnection source; |
| private final BaseStorage storage; |
| private BaseData newData; |
| |
| public BundleUpdate(BaseData data, URLConnection source, BaseStorage storage) { |
| this.data = data; |
| this.source = source; |
| this.storage = storage; |
| } |
| |
| /** |
| * Perform the change to persistent storage. |
| * |
| * @return Bundle object for the target bundle. |
| * @throws BundleException if an error occurs |
| */ |
| public BundleData begin() throws BundleException { |
| if (source == null) { |
| newData = data; |
| return newData; |
| } |
| try { |
| newData = storage.createBaseData(data.getBundleID(), data.getCompositeID(), data.getLocation()); |
| newData.setLastModified(System.currentTimeMillis()); |
| newData.setStartLevel(data.getStartLevel()); |
| newData.setStatus(data.getStatus()); |
| // load the storage hooks into the new data |
| StorageHook[] storageHooks = data.getAdaptor().getHookRegistry().getStorageHooks(); |
| StorageHook[] instanceHooks = new StorageHook[storageHooks.length]; |
| for (int i = 0; i < storageHooks.length; i++) { |
| instanceHooks[i] = storageHooks[i].create(newData); |
| instanceHooks[i].copy(data.getStorageHook((String) instanceHooks[i].getKey())); |
| } |
| newData.setStorageHooks(instanceHooks); |
| // get the new eclipse storage hooks |
| BaseStorageHook newStorageHook = (BaseStorageHook) newData.getStorageHook(BaseStorageHook.KEY); |
| InputStream in = source.getInputStream(); |
| URL sourceURL = source.getURL(); |
| String protocol = sourceURL == null ? null : sourceURL.getProtocol(); |
| try { |
| if (in instanceof ReferenceInputStream) { |
| URL reference = ((ReferenceInputStream) in).getReference(); |
| if (!"file".equals(reference.getProtocol())) //$NON-NLS-1$ |
| throw new BundleException(NLS.bind(AdaptorMsg.ADAPTOR_URL_CREATE_EXCEPTION, reference)); |
| // check to make sure we are not just trying to update to the same |
| // directory reference. This would be a no-op. |
| String path = reference.getPath(); |
| newStorageHook.setReference(true); |
| newStorageHook.setFileName(path); |
| } else { |
| File genDir = newStorageHook.createGenerationDir(); |
| if (!genDir.exists()) |
| throw new BundleException(NLS.bind(AdaptorMsg.ADAPTOR_DIRECTORY_CREATE_EXCEPTION, genDir.getPath())); |
| newStorageHook.setReference(false); |
| newStorageHook.setFileName(BaseStorage.BUNDLEFILE_NAME); |
| File outFile = new File(genDir, newStorageHook.getFileName()); |
| if ("file".equals(protocol)) { //$NON-NLS-1$ |
| File inFile = new File(source.getURL().getPath()); |
| if (inFile.isDirectory()) { |
| AdaptorUtil.copyDir(inFile, outFile); |
| } else { |
| AdaptorUtil.readFile(in, outFile); |
| } |
| } else { |
| AdaptorUtil.readFile(in, outFile); |
| } |
| } |
| Dictionary manifest = storage.loadManifest(newData, true); |
| for (int i = 0; i < instanceHooks.length; i++) |
| instanceHooks[i].initialize(manifest); |
| } finally { |
| try { |
| if (in != null) |
| in.close(); |
| } catch (IOException ee) { |
| // nothing to do here |
| } |
| } |
| } catch (IOException e) { |
| throw new BundleException(AdaptorMsg.BUNDLE_READ_EXCEPTION, e); |
| } |
| |
| return (newData); |
| } |
| |
| /** |
| * Commit the change to persistent storage. |
| * |
| * @param postpone If true, the bundle's persistent |
| * storage cannot be immediately reclaimed. |
| * @throws BundleException If a failure occured modifiying peristent storage. |
| */ |
| |
| public void commit(boolean postpone) throws BundleException { |
| if (newData == data) { |
| storage.updateState(newData, BundleEvent.UPDATED); |
| return; |
| } |
| storage.processExtension(data, BaseStorage.EXTENSION_UNINSTALLED); // remove the old extension |
| storage.processExtension(newData, BaseStorage.EXTENSION_UPDATED); // update to the new one |
| try { |
| newData.setLastModified(System.currentTimeMillis()); |
| newData.save(); |
| } catch (IOException e) { |
| throw new BundleException(AdaptorMsg.ADAPTOR_STORAGE_EXCEPTION, e); |
| } |
| storage.updateState(newData, BundleEvent.UPDATED); |
| BaseStorageHook oldStorageHook = (BaseStorageHook) data.getStorageHook(BaseStorageHook.KEY); |
| try { |
| oldStorageHook.delete(postpone, BaseStorageHook.DEL_GENERATION); |
| } catch (IOException e) { |
| data.getAdaptor().getEventPublisher().publishFrameworkEvent(FrameworkEvent.ERROR, data.getBundle(), e); |
| } |
| } |
| |
| /** |
| * Undo the change to persistent storage. |
| * |
| * @throws BundleException If a failure occured modifiying peristent storage. |
| */ |
| public void undo() throws BundleException { |
| if (newData == data) |
| return; |
| if (newData != null) { |
| BaseStorageHook newStorageHook = (BaseStorageHook) newData.getStorageHook(BaseStorageHook.KEY); |
| try { |
| if (newStorageHook != null) |
| newStorageHook.delete(false, BaseStorageHook.DEL_GENERATION); |
| } catch (IOException e) { |
| data.getAdaptor().getEventPublisher().publishFrameworkEvent(FrameworkEvent.ERROR, data.getBundle(), e); |
| } |
| } |
| } |
| } |