| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.felix.framework.cache; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.Map; |
| import java.util.jar.Manifest; |
| |
| import org.apache.felix.framework.Logger; |
| import org.apache.felix.framework.util.StringMap; |
| import org.apache.felix.framework.util.WeakZipFileFactory; |
| |
| /** |
| * <p> |
| * This class implements a bundle archive revision for exploded bundle |
| * JAR files. It uses the specified location directory "in-place" to |
| * execute the bundle and does not copy the bundle content at all. |
| * </p> |
| **/ |
| class DirectoryRevision extends BundleArchiveRevision |
| { |
| private final WeakZipFileFactory m_zipFactory; |
| private final File m_refDir; |
| |
| public DirectoryRevision( |
| Logger logger, Map configMap, WeakZipFileFactory zipFactory, |
| File revisionRootDir, String location) throws Exception |
| { |
| super(logger, configMap, revisionRootDir, location); |
| m_zipFactory = zipFactory; |
| m_refDir = new File(location.substring( |
| location.indexOf(BundleArchive.FILE_PROTOCOL) |
| + BundleArchive.FILE_PROTOCOL.length())); |
| |
| // If the revision directory exists, then we don't |
| // need to initialize since it has already been done. |
| if (BundleCache.getSecureAction().fileExists(getRevisionRootDir())) |
| { |
| return; |
| } |
| |
| // Create revision directory, we only need this to store the |
| // revision location, since nothing else needs to be extracted |
| // since we are referencing a read directory already. |
| if (!BundleCache.getSecureAction().mkdir(getRevisionRootDir())) |
| { |
| getLogger().log( |
| Logger.LOG_ERROR, |
| getClass().getName() + ": Unable to create revision directory."); |
| throw new IOException("Unable to create archive directory."); |
| } |
| } |
| |
| public synchronized Map getManifestHeader() |
| throws Exception |
| { |
| // Read the header file from the reference directory. |
| InputStream is = null; |
| |
| try |
| { |
| // Open manifest file. |
| is = BundleCache.getSecureAction() |
| .getFileInputStream(new File(m_refDir, "META-INF/MANIFEST.MF")); |
| // Error if no jar file. |
| if (is == null) |
| { |
| throw new IOException("No manifest file found."); |
| } |
| |
| // Get manifest. |
| Manifest mf = new Manifest(is); |
| // Create a case insensitive map of manifest attributes. |
| return new StringMap(mf.getMainAttributes()); |
| } |
| finally |
| { |
| if (is != null) is.close(); |
| } |
| } |
| |
| public synchronized Content getContent() throws Exception |
| { |
| return new DirectoryContent(getLogger(), getConfig(), m_zipFactory, |
| this, getRevisionRootDir(), m_refDir); |
| } |
| |
| protected void close() throws Exception |
| { |
| // Nothing to close since we don't maintain any state outside |
| // of the revision directory, which will be automatically deleted |
| // by the parent bundle archive. |
| } |
| } |