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/* |
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* Licensed to the Apache Software Foundation (ASF) under one or more |
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* contributor license agreements. See the NOTICE file distributed with |
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* this work for additional information regarding copyright ownership. |
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* The ASF licenses this file to You under the Apache License, Version 2.0 |
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* (the "License"); you may not use this file except in compliance with |
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* the License. You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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* |
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*/ |
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package org.apache.tools.ant.types.optional.xz; |
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import java.io.IOException; |
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import java.io.InputStream; |
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import java.io.OutputStream; |
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import org.apache.tools.ant.types.resources.CompressedResource; |
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import org.tukaani.xz.LZMA2Options; |
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import org.tukaani.xz.XZInputStream; |
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import org.tukaani.xz.XZOutputStream; |
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/** |
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* A XZ compressed resource. |
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* |
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* <p>Wraps around another resource, delegates all queries to that |
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* other resource but uncompresses/compresses streams on the fly.</p> |
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* |
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* @since Ant 1.10.1 |
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*/ |
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public class XzResource extends CompressedResource { |
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/** A no-arg constructor */ |
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public XzResource() { |
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} |
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/** |
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* Constructor with another resource to wrap. |
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* @param other the resource to wrap. |
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*/ |
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public XzResource(org.apache.tools.ant.types.ResourceCollection other) { |
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super(other); |
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} |
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/** |
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* Decompress on the fly using java.util.zip.XZInputStream. |
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* @param in the stream to wrap. |
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* @return the wrapped stream. |
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* @throws IOException if there is a problem. |
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*/ |
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protected InputStream wrapStream(InputStream in) throws IOException { |
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return new XZInputStream(in); |
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} |
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/** |
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* Compress on the fly using java.util.zip.XZOutStream. |
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* @param out the stream to wrap. |
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* @return the wrapped stream. |
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* @throws IOException if there is a problem. |
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*/ |
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protected OutputStream wrapStream(OutputStream out) throws IOException { |
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return new XZOutputStream(out, new LZMA2Options()); |
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} |
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/** |
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* Get the name of the compression method. |
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* @return the string "XZ". |
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*/ |
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protected String getCompressionName() { |
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return "XZ"; |
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} |
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} |