| /* |
| * 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.impl; |
| |
| import java.io.IOException; |
| import java.net.URL; |
| import java.util.jar.Attributes; |
| |
| import org.apache.commons.vfs2.FileObject; |
| import org.apache.commons.vfs2.FileSystemException; |
| import org.apache.commons.vfs2.FileUtil; |
| |
| /** |
| * Helper class for VFSClassLoader. |
| * This represents a resource loaded with the classloader. |
| * |
| * @see VFSClassLoader |
| */ |
| class Resource |
| { |
| private final FileObject root; |
| private final FileObject resource; |
| private final FileObject packageFolder; |
| private final String packageName; |
| |
| /** |
| * Creates a new instance. |
| * |
| * @param root The code source FileObject. |
| * @param resource The resource of the FileObject. |
| */ |
| public Resource(final String name, |
| final FileObject root, |
| final FileObject resource) |
| throws FileSystemException |
| { |
| this.root = root; |
| this.resource = resource; |
| packageFolder = resource.getParent(); |
| final int pos = name.lastIndexOf('/'); |
| if (pos == -1) |
| { |
| packageName = null; |
| } |
| else |
| { |
| packageName = name.substring(0, pos).replace('/', '.'); |
| } |
| } |
| |
| /** |
| * Returns the URL of the resource. |
| */ |
| public URL getURL() throws FileSystemException |
| { |
| return resource.getURL(); |
| } |
| |
| /** |
| * Returns the name of the package containing the resource. |
| */ |
| public String getPackageName() |
| { |
| return packageName; |
| } |
| |
| /** |
| * Returns an attribute of the package containing the resource. |
| */ |
| public String getPackageAttribute(final Attributes.Name attrName) throws FileSystemException |
| { |
| return (String) packageFolder.getContent().getAttribute(attrName.toString()); |
| } |
| |
| /** |
| * Returns the folder for the package containing the resource. |
| */ |
| public FileObject getPackageFolder() |
| { |
| return packageFolder; |
| } |
| |
| /** |
| * Returns the FileObject of the resource. |
| */ |
| public FileObject getFileObject() |
| { |
| return resource; |
| } |
| |
| /** |
| * Returns the code source as an URL. |
| */ |
| public URL getCodeSourceURL() throws FileSystemException |
| { |
| return root.getURL(); |
| } |
| |
| /** |
| * Returns the data for this resource as a byte array. |
| */ |
| public byte[] getBytes() throws IOException |
| { |
| return FileUtil.getContent(resource); |
| } |
| } |