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Ant example source code file (BZip2Resource.java)
The BZip2Resource.java source code/* * 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.tools.ant.types.resources; import java.io.InputStream; import java.io.IOException; import java.io.OutputStream; import org.apache.tools.bzip2.CBZip2InputStream; import org.apache.tools.bzip2.CBZip2OutputStream; /** * A Bzip2 compressed resource. * * <p>Wraps around another resource, delegates all quries to that * other resource but uncompresses/compresses streams on the fly.</p> * * @since Ant 1.7 */ public class BZip2Resource extends CompressedResource { private static final char[] MAGIC = new char[] {'B', 'Z'}; /** A no-arg constructor */ public BZip2Resource() { } /** * Constructor with another resource to wrap. * @param other the resource to wrap. */ public BZip2Resource(org.apache.tools.ant.types.ResourceCollection other) { super(other); } /** * Decompress on the fly using {@link CBZip2InputStream}. * @param in the stream to wrap. * @return the wrapped stream. * @throws IOException if there is a problem. */ protected InputStream wrapStream(InputStream in) throws IOException { for (int i = 0; i < MAGIC.length; i++) { if (in.read() != MAGIC[i]) { throw new IOException("Invalid bz2 stream."); } } return new CBZip2InputStream(in); } /** * Compress on the fly using {@link CBZip2OutputStream}. * @param out the stream to wrap. * @return the wrapped stream. * @throws IOException if there is a problem. */ protected OutputStream wrapStream(OutputStream out) throws IOException { for (int i = 0; i < MAGIC.length; i++) { out.write(MAGIC[i]); } return new CBZip2OutputStream(out); } /** * Get the name of the compression method. * @return the string "Bzip2". */ protected String getCompressionName() { return "Bzip2"; } } Other Ant examples (source code examples)Here is a short list of links related to this Ant BZip2Resource.java source code file: |
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