| /* |
| * 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.taskdefs; |
| |
| |
| import java.io.BufferedOutputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| |
| import org.apache.tools.ant.BuildException; |
| import org.apache.tools.ant.util.FileUtils; |
| import org.apache.tools.bzip2.CBZip2OutputStream; |
| |
| /** |
| * Compresses a file with the BZIP2 algorithm. Normally used to compress |
| * non-compressed archives such as TAR files. |
| * |
| * @since Ant 1.5 |
| * |
| * @ant.task category="packaging" |
| */ |
| |
| public class BZip2 extends Pack { |
| /** |
| * Compress the zipFile. |
| */ |
| protected void pack() { |
| CBZip2OutputStream zOut = null; |
| try { |
| BufferedOutputStream bos = |
| new BufferedOutputStream(new FileOutputStream(zipFile)); |
| bos.write('B'); |
| bos.write('Z'); |
| zOut = new CBZip2OutputStream(bos); |
| zipResource(getSrcResource(), zOut); |
| } catch (IOException ioe) { |
| String msg = "Problem creating bzip2 " + ioe.getMessage(); |
| throw new BuildException(msg, ioe, getLocation()); |
| } finally { |
| FileUtils.close(zOut); |
| } |
| } |
| |
| /** |
| * Whether this task can deal with non-file resources. |
| * |
| * <p>This implementation returns true only if this task is |
| * <bzip2>. Any subclass of this class that also wants to |
| * support non-file resources needs to override this method. We |
| * need to do so for backwards compatibility reasons since we |
| * can't expect subclasses to support resources.</p> |
| * @return true if this task support non file resources. |
| * @since Ant 1.7 |
| */ |
| protected boolean supportsNonFileResources() { |
| return getClass().equals(BZip2.class); |
| } |
| } |