| /* |
| * 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.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Collections; |
| |
| import org.apache.commons.vfs2.Capability; |
| import org.apache.commons.vfs2.FileName; |
| import org.apache.commons.vfs2.FileObject; |
| import org.apache.commons.vfs2.FileSystem; |
| import org.apache.commons.vfs2.FileSystemException; |
| import org.apache.commons.vfs2.FileSystemOptions; |
| import org.apache.commons.vfs2.FileType; |
| import org.apache.commons.vfs2.provider.AbstractFileName; |
| import org.apache.commons.vfs2.provider.LayeredFileName; |
| import org.apache.commons.vfs2.provider.zip.ZipFileProvider; |
| |
| /** |
| * A file system provider for Jar files. Provides read-only file |
| * systems. This provides access to Jar specific features like Signing and |
| * Manifest Attributes. |
| */ |
| public class JarFileProvider extends ZipFileProvider |
| { |
| static final Collection<Capability> capabilities; |
| |
| static |
| { |
| final Collection<Capability> combined = new ArrayList<Capability>(); |
| combined.addAll(ZipFileProvider.capabilities); |
| combined.addAll(Arrays.asList(new Capability[] |
| { |
| Capability.ATTRIBUTES, |
| Capability.FS_ATTRIBUTES, |
| Capability.SIGNING, |
| Capability.MANIFEST_ATTRIBUTES, |
| Capability.VIRTUAL |
| })); |
| capabilities = Collections.unmodifiableCollection(combined); |
| } |
| |
| public JarFileProvider() |
| { |
| super(); |
| } |
| |
| /** |
| * Creates a layered file system. This method is called if the file system |
| * is not cached. |
| * |
| * @param scheme The URI scheme. |
| * @param file The file to create the file system on top of. |
| * @return The file system. |
| */ |
| @Override |
| protected FileSystem doCreateFileSystem(final String scheme, |
| final FileObject file, |
| final FileSystemOptions fileSystemOptions) |
| throws FileSystemException |
| { |
| final AbstractFileName name = |
| new LayeredFileName(scheme, file.getName(), FileName.ROOT_PATH, FileType.FOLDER); |
| return new JarFileSystem(name, file, fileSystemOptions); |
| } |
| |
| @Override |
| public Collection<Capability> getCapabilities() |
| { |
| return capabilities; |
| } |
| } |