001/*
002 *  Licensed to the Apache Software Foundation (ASF) under one or more
003 *  contributor license agreements.  See the NOTICE file distributed with
004 *  this work for additional information regarding copyright ownership.
005 *  The ASF licenses this file to You under the Apache License, Version 2.0
006 *  (the "License"); you may not use this file except in compliance with
007 *  the License.  You may obtain a copy of the License at
008 *
009 *     http://www.apache.org/licenses/LICENSE-2.0
010 *
011 *  Unless required by applicable law or agreed to in writing, software
012 *  distributed under the License is distributed on an "AS IS" BASIS,
013 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 *  See the License for the specific language governing permissions and
015 *  limitations under the License.
016 */
017package org.apache.commons.compress.harmony.pack200;
018
019import java.io.IOException;
020import java.io.OutputStream;
021import java.util.jar.JarFile;
022import java.util.jar.JarInputStream;
023
024import org.apache.commons.compress.java.util.jar.Pack200.Packer;
025
026/**
027 * This class provides the binding between the standard Pack200 interface and the internal interface for (un)packing. As
028 * this uses generics for the SortedMap, this class must be compiled and run on a Java 1.5 system. However, Java 1.5 is
029 * not necessary to use the internal libraries for unpacking.
030 */
031public class Pack200PackerAdapter extends Pack200Adapter implements Packer {
032
033    private final PackingOptions options = new PackingOptions();
034
035    @Override
036    public void pack(final JarFile file, final OutputStream out) throws IOException {
037        if (file == null || out == null) {
038            throw new IllegalArgumentException("Must specify both input and output streams");
039        }
040        completed(0);
041        try {
042            new org.apache.commons.compress.harmony.pack200.Archive(file, out, options).pack();
043        } catch (final Pack200Exception e) {
044            throw new IOException("Failed to pack Jar:" + String.valueOf(e));
045        }
046        completed(1);
047    }
048
049    @Override
050    public void pack(final JarInputStream in, final OutputStream out) throws IOException {
051        if (in == null || out == null) {
052            throw new IllegalArgumentException("Must specify both input and output streams");
053        }
054        completed(0);
055        final PackingOptions options = new PackingOptions();
056
057        try {
058            new org.apache.commons.compress.harmony.pack200.Archive(in, out, options).pack();
059        } catch (final Pack200Exception e) {
060            throw new IOException("Failed to pack Jar:" + String.valueOf(e));
061        }
062        completed(1);
063        in.close();
064    }
065
066    @Override
067    protected void firePropertyChange(final String propertyName, final Object oldValue, final Object newValue) {
068        super.firePropertyChange(propertyName, oldValue, newValue);
069        if (newValue != null && !newValue.equals(oldValue)) {
070            if (propertyName.startsWith(CLASS_ATTRIBUTE_PFX)) {
071                final String attributeName = propertyName.substring(CLASS_ATTRIBUTE_PFX.length());
072                options.addClassAttributeAction(attributeName, (String) newValue);
073            } else if (propertyName.startsWith(CODE_ATTRIBUTE_PFX)) {
074                final String attributeName = propertyName.substring(CODE_ATTRIBUTE_PFX.length());
075                options.addCodeAttributeAction(attributeName, (String) newValue);
076            } else if (propertyName.equals(DEFLATE_HINT)) {
077                options.setDeflateHint((String) newValue);
078            } else if (propertyName.equals(EFFORT)) {
079                options.setEffort(Integer.parseInt((String) newValue));
080            } else if (propertyName.startsWith(FIELD_ATTRIBUTE_PFX)) {
081                final String attributeName = propertyName.substring(FIELD_ATTRIBUTE_PFX.length());
082                options.addFieldAttributeAction(attributeName, (String) newValue);
083            } else if (propertyName.equals(KEEP_FILE_ORDER)) {
084                options.setKeepFileOrder(Boolean.parseBoolean((String) newValue));
085            } else if (propertyName.startsWith(METHOD_ATTRIBUTE_PFX)) {
086                final String attributeName = propertyName.substring(METHOD_ATTRIBUTE_PFX.length());
087                options.addMethodAttributeAction(attributeName, (String) newValue);
088            } else if (propertyName.equals(MODIFICATION_TIME)) {
089                options.setModificationTime((String) newValue);
090            } else if (propertyName.startsWith(PASS_FILE_PFX)) {
091                if (oldValue != null && !oldValue.equals("")) {
092                    options.removePassFile((String) oldValue);
093                }
094                options.addPassFile((String) newValue);
095            } else if (propertyName.equals(SEGMENT_LIMIT)) {
096                options.setSegmentLimit(Long.parseLong((String) newValue));
097            } else if (propertyName.equals(UNKNOWN_ATTRIBUTE)) {
098                options.setUnknownAttributeAction((String) newValue);
099            }
100        }
101    }
102
103}