    001/*
    002 * Licensed to the Apache Software Foundation (ASF) under one
    003 * or more contributor license agreements.  See the NOTICE file
    004 * distributed with this work for additional information
    005 * regarding copyright ownership.  The ASF licenses this file
    006 * to you under the Apache License, Version 2.0 (the
    007 * "License"); you may not use this file except in compliance
    008 * with the License.  You may obtain a copy of the License at
    009 *
    010 *   https://www.apache.org/licenses/LICENSE-2.0
    011 *
    012 * Unless required by applicable law or agreed to in writing,
    013 * software distributed under the License is distributed on an
    014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    015 * KIND, either express or implied.  See the License for the
    016 * specific language governing permissions and limitations
    017 * under the License.
    018 */
    019package org.apache.commons.compress.harmony.pack200;
    020
    021import java.io.IOException;
    022import java.io.OutputStream;
    023import java.util.jar.JarFile;
    024import java.util.jar.JarInputStream;
    025
    026import org.apache.commons.compress.java.util.jar.Pack200.Packer;
    027import org.apache.commons.compress.utils.ParsingUtils;
    028
    029/**
    030 * This class provides the binding between the standard Pack200 interface and the internal interface for (un)packing. As this uses generics for the SortedMap,
    031 * 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.
    032 */
    033public class Pack200PackerAdapter extends Pack200Adapter implements Packer {
    034
    035    private final PackingOptions options = new PackingOptions();
    036
    037    @Override
    038    protected void firePropertyChange(final String propertyName, final Object oldValue, final Object newValue) throws IOException {
    039        super.firePropertyChange(propertyName, oldValue, newValue);
    040        if (newValue != null && !newValue.equals(oldValue)) {
    041            if (propertyName.startsWith(CLASS_ATTRIBUTE_PFX)) {
    042                final String attributeName = propertyName.substring(CLASS_ATTRIBUTE_PFX.length());
    043                options.addClassAttributeAction(attributeName, (String) newValue);
    044            } else if (propertyName.startsWith(CODE_ATTRIBUTE_PFX)) {
    045                final String attributeName = propertyName.substring(CODE_ATTRIBUTE_PFX.length());
    046                options.addCodeAttributeAction(attributeName, (String) newValue);
    047            } else if (propertyName.equals(DEFLATE_HINT)) {
    048                options.setDeflateHint((String) newValue);
    049            } else if (propertyName.equals(EFFORT)) {
    050                options.setEffort(ParsingUtils.parseIntValue((String) newValue));
    051            } else if (propertyName.startsWith(FIELD_ATTRIBUTE_PFX)) {
    052                final String attributeName = propertyName.substring(FIELD_ATTRIBUTE_PFX.length());
    053                options.addFieldAttributeAction(attributeName, (String) newValue);
    054            } else if (propertyName.equals(KEEP_FILE_ORDER)) {
    055                options.setKeepFileOrder(Boolean.parseBoolean((String) newValue));
    056            } else if (propertyName.startsWith(METHOD_ATTRIBUTE_PFX)) {
    057                final String attributeName = propertyName.substring(METHOD_ATTRIBUTE_PFX.length());
    058                options.addMethodAttributeAction(attributeName, (String) newValue);
    059            } else if (propertyName.equals(MODIFICATION_TIME)) {
    060                options.setModificationTime((String) newValue);
    061            } else if (propertyName.startsWith(PASS_FILE_PFX)) {
    062                if (oldValue != null && !oldValue.equals("")) {
    063                    options.removePassFile((String) oldValue);
    064                }
    065                options.addPassFile((String) newValue);
    066            } else if (propertyName.equals(SEGMENT_LIMIT)) {
    067                options.setSegmentLimit(ParsingUtils.parseLongValue((String) newValue));
    068            } else if (propertyName.equals(UNKNOWN_ATTRIBUTE)) {
    069                options.setUnknownAttributeAction((String) newValue);
    070            }
    071        }
    072    }
    073
    074    @Override
    075    public void pack(final JarFile file, final OutputStream out) throws IOException {
    076        if (file == null || out == null) {
    077            throw new IllegalArgumentException("Must specify both input and output streams");
    078        }
    079        completed(0);
    080        try {
    081            new Archive(file, out, options).pack();
    082        } catch (final Pack200Exception e) {
    083            throw new IOException("Failed to pack Jar:" + e);
    084        }
    085        completed(1);
    086    }
    087
    088    @Override
    089    public void pack(final JarInputStream in, final OutputStream out) throws IOException {
    090        if (in == null || out == null) {
    091            throw new IllegalArgumentException("Must specify both input and output streams");
    092        }
    093        completed(0);
    094        final PackingOptions options = new PackingOptions();
    095
    096        try {
    097            new Archive(in, out, options).pack();
    098        } catch (final Pack200Exception e) {
    099            throw new IOException("Failed to pack Jar:" + e);
    100        }
    101        completed(1);
    102        in.close();
    103    }
    104
    105}