| /* |
| * 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.ant.compress.taskdefs; |
| |
| import java.io.IOException; |
| import java.io.OutputStream; |
| import java.util.zip.Deflater; |
| |
| import org.apache.ant.compress.resources.CommonsCompressCompressorResource; |
| import org.apache.ant.compress.resources.DeflateResource; |
| import org.apache.ant.compress.util.DeflateStreamFactory; |
| import org.apache.commons.compress.compressors.CompressorOutputStream; |
| import org.apache.commons.compress.compressors.deflate.DeflateCompressorOutputStream; |
| import org.apache.commons.compress.compressors.deflate.DeflateParameters; |
| import org.apache.tools.ant.types.Resource; |
| |
| /** |
| * Compresses using deflate. |
| * @since Apache Compress Antlib 1.5 |
| */ |
| public final class Deflate extends PackBase { |
| private boolean zlibHeader = true; |
| private int level = Deflater.DEFAULT_COMPRESSION; |
| |
| public Deflate() { |
| super(new PackBase.ResourceWrapper() { |
| @Override |
| public CommonsCompressCompressorResource wrap(Resource dest) { |
| return new DeflateResource(dest); |
| } |
| }); |
| setFactory(new DeflateStreamFactory() { |
| @Override |
| public CompressorOutputStream getCompressorStream(OutputStream stream) |
| throws IOException { |
| DeflateParameters params = new DeflateParameters(); |
| params.setCompressionLevel(level); |
| params.setWithZlibHeader(zlibHeader); |
| return new DeflateCompressorOutputStream(stream, params); |
| } |
| }); |
| } |
| |
| /** |
| * Set the compression level to use. Default is |
| * Deflater.DEFAULT_COMPRESSION. |
| * @param level compression level. |
| */ |
| public void setLevel(int level) { |
| this.level = level; |
| } |
| |
| /** |
| * Whether to write a ZLIB header. |
| * |
| * <p>Default is {@code true}.</p> |
| * @param zlib whether to write a ZLIB header |
| */ |
| public void setZlibHeader(boolean zlib) { |
| zlibHeader = zlib; |
| } |
| } |