| /* |
| * 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.harmony.unpack200; |
| |
| import java.io.BufferedInputStream; |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.util.jar.JarOutputStream; |
| import java.util.jar.Pack200.Unpacker; |
| |
| import org.apache.harmony.pack200.Pack200Adapter; |
| import org.apache.harmony.pack200.Pack200Exception; |
| |
| /** |
| * This class provides the binding between the standard Pack200 interface and |
| * the internal interface for (un)packing. As this uses generics for the |
| * SortedMap, this class must be compiled and run on a Java 1.5 system. However, |
| * Java 1.5 is not necessary to use the internal libraries for unpacking. |
| */ |
| public class Pack200UnpackerAdapter extends Pack200Adapter implements Unpacker { |
| /* |
| * (non-Javadoc) |
| * |
| * @see java.util.jar.Pack200.Unpacker#unpack(java.io.InputStream, |
| * java.util.jar.JarOutputStream) |
| */ |
| public void unpack(InputStream in, JarOutputStream out) throws IOException { |
| if (in == null || out == null) |
| throw new IllegalArgumentException( |
| "Must specify both input and output streams"); |
| completed(0); |
| try { |
| new Archive(in, out).unpack(); |
| } catch (Pack200Exception e) { |
| throw new IOException("Failed to unpack Jar:" + String.valueOf(e)); |
| } |
| completed(1); |
| in.close(); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see java.util.jar.Pack200.Unpacker#unpack(java.io.File, |
| * java.util.jar.JarOutputStream) |
| */ |
| public void unpack(File file, JarOutputStream out) throws IOException { |
| if (file == null || out == null) |
| throw new IllegalArgumentException( |
| "Must specify both input and output streams"); |
| int size = (int) file.length(); |
| int bufferSize = (size > 0 && size < DEFAULT_BUFFER_SIZE ? size |
| : DEFAULT_BUFFER_SIZE); |
| InputStream in = new BufferedInputStream(new FileInputStream(file), |
| bufferSize); |
| unpack(in, out); |
| } |
| } |