| /* |
| * 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.commons.vfs2.provider.jar; |
| |
| import java.io.IOException; |
| import java.security.cert.Certificate; |
| import java.util.HashMap; |
| import java.util.Map; |
| import java.util.Map.Entry; |
| import java.util.jar.Attributes; |
| import java.util.jar.JarEntry; |
| import java.util.jar.JarFile; |
| import java.util.jar.Manifest; |
| import java.util.zip.ZipEntry; |
| |
| import org.apache.commons.vfs2.FileSystemException; |
| import org.apache.commons.vfs2.provider.AbstractFileName; |
| import org.apache.commons.vfs2.provider.zip.ZipFileObject; |
| |
| /** |
| * A file in a Jar file system. |
| */ |
| public class JarFileObject extends ZipFileObject |
| { |
| private final JarFileSystem fs; |
| |
| private Attributes attributes; |
| |
| protected JarFileObject(final AbstractFileName name, |
| final ZipEntry entry, |
| final JarFileSystem fs, |
| final boolean zipExists) throws FileSystemException |
| { |
| super(name, entry, fs, zipExists); |
| this.fs = fs; |
| |
| try |
| { |
| getAttributes(); // early get the attributes as the zip file might be closed |
| } |
| catch (final IOException e) |
| { |
| throw new FileSystemException(e); |
| } |
| } |
| |
| /** |
| * Returns the Jar manifest. |
| */ |
| Manifest getManifest() throws IOException |
| { |
| if (fs.getZipFile() == null) |
| { |
| return null; |
| } |
| |
| return ((JarFile) fs.getZipFile()).getManifest(); |
| } |
| |
| /** |
| * Returns the attributes of this file. |
| */ |
| Attributes getAttributes() throws IOException |
| { |
| if (attributes == null) |
| { |
| if (entry == null) |
| { |
| attributes = new Attributes(1); |
| } |
| else |
| { |
| attributes = ((JarEntry) entry).getAttributes(); |
| if (attributes == null) |
| { |
| attributes = new Attributes(1); |
| } |
| } |
| } |
| |
| return attributes; |
| } |
| |
| /** |
| * Returns the value of an attribute. |
| */ |
| @Override |
| protected Map<String, Object> doGetAttributes() |
| throws Exception |
| { |
| final Map<String, Object> attrs = new HashMap<String, Object>(); |
| |
| // Add the file system's attributes first |
| final JarFileSystem fs = (JarFileSystem) getFileSystem(); |
| addAll(fs.getAttributes(), attrs); |
| |
| // Add this file's attributes |
| addAll(getAttributes(), attrs); |
| |
| return attrs; |
| } |
| |
| /** |
| * Adds the source attributes to the destination map. |
| */ |
| private void addAll(final Attributes src, final Map<String, Object> dest) |
| { |
| for (final Entry<Object, Object> entry : src.entrySet()) |
| { |
| // final String name = entry.getKey().toString().toLowerCase(); |
| final String name = entry.getKey().toString(); |
| dest.put(name, entry.getValue()); |
| } |
| } |
| |
| /** |
| * Return the certificates of this JarEntry. |
| */ |
| @Override |
| protected Certificate[] doGetCertificates() |
| { |
| if (entry == null) |
| { |
| return null; |
| } |
| |
| return ((JarEntry) entry).getCertificates(); |
| } |
| } |