    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}