| /* |
| * 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.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.jar.Manifest; |
| |
| import org.apache.felix.framework.Logger; |
| import org.apache.felix.framework.util.FelixConstants; |
| import org.apache.felix.framework.util.StringMap; |
| import org.apache.felix.framework.util.manifestparser.ManifestParser; |
| import org.apache.felix.moduleloader.DirectoryContent; |
| import org.apache.felix.moduleloader.IContent; |
| import org.apache.felix.moduleloader.JarContent; |
| |
| /** |
| * <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 BundleRevision |
| { |
| private static final transient String BUNDLE_JAR_FILE = "bundle.jar"; |
| |
| private File m_refDir = null; |
| private Map m_header = null; |
| |
| public DirectoryRevision( |
| Logger logger, File revisionRootDir, String location) throws Exception |
| { |
| super(logger, revisionRootDir, location); |
| 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(this.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(this.getRevisionRootDir())) |
| { |
| this.getLogger().log( |
| Logger.LOG_ERROR, |
| this.getClass().getName() + ": Unable to create revision directory."); |
| throw new IOException("Unable to create archive directory."); |
| } |
| } |
| |
| public synchronized Map getManifestHeader() |
| throws Exception |
| { |
| if (m_header != null) |
| { |
| return m_header; |
| } |
| |
| // 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. |
| m_header = new StringMap(mf.getMainAttributes(), false); |
| return m_header; |
| } |
| finally |
| { |
| if (is != null) is.close(); |
| } |
| } |
| |
| public IContent getContent() throws Exception |
| { |
| return new DirectoryContent(m_refDir); |
| } |
| |
| public synchronized IContent[] getContentPath() throws Exception |
| { |
| // Creating the content path entails examining the bundle's |
| // class path to determine whether the bundle JAR file itself |
| // is on the bundle's class path and then creating content |
| // objects for everything on the class path. |
| |
| // Get the bundle's manifest header. |
| Map map = this.getManifestHeader(); |
| |
| // Find class path meta-data. |
| String classPath = (map == null) |
| ? null : (String) map.get(FelixConstants.BUNDLE_CLASSPATH); |
| |
| // Parse the class path into strings. |
| String[] classPathStrings = ManifestParser.parseDelimitedString( |
| classPath, FelixConstants.CLASS_PATH_SEPARATOR); |
| |
| if (classPathStrings == null) |
| { |
| classPathStrings = new String[0]; |
| } |
| |
| // Create the bundles class path. |
| IContent self = new DirectoryContent(m_refDir); |
| List contentList = new ArrayList(); |
| for (int i = 0; i < classPathStrings.length; i++) |
| { |
| if (classPathStrings[i].equals(FelixConstants.CLASS_PATH_DOT)) |
| { |
| contentList.add(self); |
| } |
| else |
| { |
| // Determine if the class path entry is a file or directory. |
| File file = new File(m_refDir, classPathStrings[i]); |
| if (BundleCache.getSecureAction().isFileDirectory(file)) |
| { |
| contentList.add(new DirectoryContent(file)); |
| } |
| else |
| { |
| // Ignore any entries that do not exist per the spec. |
| if (BundleCache.getSecureAction().fileExists(file)) |
| { |
| contentList.add(new JarContent(file)); |
| } |
| } |
| } |
| } |
| |
| // If there is nothing on the class path, then include |
| // "." by default, as per the spec. |
| if (contentList.size() == 0) |
| { |
| contentList.add(self); |
| } |
| |
| return (IContent[]) contentList.toArray(new IContent[contentList.size()]); |
| } |
| |
| // TODO: This will need to consider security. |
| public String findLibrary(String libName) throws Exception |
| { |
| return BundleCache.getSecureAction().getAbsolutePath(new File(this.m_refDir, libName)); |
| } |
| |
| public void dispose() throws Exception |
| { |
| // Nothing to dispose of, since we don't maintain any state outside |
| // of the revision directory, which will be automatically deleted |
| // by the parent bundle archive. |
| } |
| } |