/* * 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.vfs.provider.bzip2; //TODO: Revert to [compress] //import org.apache.commons.compress.bzip2.CBZip2InputStream; //import org.apache.commons.compress.bzip2.CBZip2OutputStream; import org.apache.commons.vfs.FileName; import org.apache.commons.vfs.FileObject; import org.apache.commons.vfs.FileSystemException; import org.apache.commons.vfs.provider.compressed.CompressedFileFileObject; import org.apache.commons.vfs.provider.compressed.CompressedFileFileSystem; import java.io.IOException; import java.io.InputStream; import java.io.OutputStream; /** * the bzip2 file * * @author <a href="mailto:imario@apache.org">Mario Ivankovits</a> * @version $Revision: 480428 $ $Date: 2006-11-29 07:15:24 +0100 (Mi, 29 Nov 2006) $ */ public class Bzip2FileObject extends CompressedFileFileObject { protected Bzip2FileObject(FileName name, FileObject container, CompressedFileFileSystem fs) { super(name, container, fs); } protected InputStream doGetInputStream() throws Exception { // check file InputStream is = getContainer().getContent().getInputStream(); return wrapInputStream(getName().getURI(), is); } public static InputStream wrapInputStream(final String name, final InputStream is) throws IOException { final int b1 = is.read(); final int b2 = is.read(); if (b1 != 'B' || b2 != 'Z') { throw new FileSystemException("vfs.provider.compressedFile/not-a-compressedFile-file.error", name); } return new CBZip2InputStream(is); } protected OutputStream doGetOutputStream(boolean bAppend) throws Exception { OutputStream os = getContainer().getContent().getOutputStream(false); os.write('B'); os.write('Z'); return new CBZip2OutputStream(os); } }