    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;
    025import org.apache.commons.compress.utils.ParsingUtils;
    026
    027/**
    028 * This class provides the binding between the standard Pack200 interface and the internal interface for (un)packing. As this uses generics for the SortedMap,
    029 * 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.
    030 */
    031public class Pack200PackerAdapter extends Pack200Adapter implements Packer {
    032
    033    private final PackingOptions options = new PackingOptions();
    034
    035    @Override
    036    protected void firePropertyChange(final String propertyName, final Object oldValue, final Object newValue) throws IOException {
    037        super.firePropertyChange(propertyName, oldValue, newValue);
    038        if (newValue != null && !newValue.equals(oldValue)) {
    039            if (propertyName.startsWith(CLASS_ATTRIBUTE_PFX)) {
    040                final String attributeName = propertyName.substring(CLASS_ATTRIBUTE_PFX.length());
    041                options.addClassAttributeAction(attributeName, (String) newValue);
    042            } else if (propertyName.startsWith(CODE_ATTRIBUTE_PFX)) {
    043                final String attributeName = propertyName.substring(CODE_ATTRIBUTE_PFX.length());
    044                options.addCodeAttributeAction(attributeName, (String) newValue);
    045            } else if (propertyName.equals(DEFLATE_HINT)) {
    046                options.setDeflateHint((String) newValue);
    047            } else if (propertyName.equals(EFFORT)) {
    048                options.setEffort(ParsingUtils.parseIntValue((String) newValue));
    049            } else if (propertyName.startsWith(FIELD_ATTRIBUTE_PFX)) {
    050                final String attributeName = propertyName.substring(FIELD_ATTRIBUTE_PFX.length());
    051                options.addFieldAttributeAction(attributeName, (String) newValue);
    052            } else if (propertyName.equals(KEEP_FILE_ORDER)) {
    053                options.setKeepFileOrder(Boolean.parseBoolean((String) newValue));
    054            } else if (propertyName.startsWith(METHOD_ATTRIBUTE_PFX)) {
    055                final String attributeName = propertyName.substring(METHOD_ATTRIBUTE_PFX.length());
    056                options.addMethodAttributeAction(attributeName, (String) newValue);
    057            } else if (propertyName.equals(MODIFICATION_TIME)) {
    058                options.setModificationTime((String) newValue);
    059            } else if (propertyName.startsWith(PASS_FILE_PFX)) {
    060                if (oldValue != null && !oldValue.equals("")) {
    061                    options.removePassFile((String) oldValue);
    062                }
    063                options.addPassFile((String) newValue);
    064            } else if (propertyName.equals(SEGMENT_LIMIT)) {
    065                options.setSegmentLimit(ParsingUtils.parseLongValue((String) newValue));
    066            } else if (propertyName.equals(UNKNOWN_ATTRIBUTE)) {
    067                options.setUnknownAttributeAction((String) newValue);
    068            }
    069        }
    070    }
    071
    072    @Override
    073    public void pack(final JarFile file, final OutputStream out) throws IOException {
    074        if (file == null || out == null) {
    075            throw new IllegalArgumentException("Must specify both input and output streams");
    076        }
    077        completed(0);
    078        try {
    079            new org.apache.commons.compress.harmony.pack200.Archive(file, out, options).pack();
    080        } catch (final Pack200Exception e) {
    081            throw new IOException("Failed to pack Jar:" + e);
    082        }
    083        completed(1);
    084    }
    085
    086    @Override
    087    public void pack(final JarInputStream in, final OutputStream out) throws IOException {
    088        if (in == null || out == null) {
    089            throw new IllegalArgumentException("Must specify both input and output streams");
    090        }
    091        completed(0);
    092        final PackingOptions options = new PackingOptions();
    093
    094        try {
    095            new org.apache.commons.compress.harmony.pack200.Archive(in, out, options).pack();
    096        } catch (final Pack200Exception e) {
    097            throw new IOException("Failed to pack Jar:" + e);
    098        }
    099        completed(1);
    100        in.close();
    101    }
    102
    103}