    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 * http://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.archivers.jar;
    020
    021import java.security.cert.Certificate;
    022import java.util.jar.Attributes;
    023import java.util.jar.JarEntry;
    024import java.util.zip.ZipEntry;
    025import java.util.zip.ZipException;
    026
    027import org.apache.commons.compress.archivers.zip.ZipArchiveEntry;
    028
    029/**
    030 *
    031 * @NotThreadSafe (parent is not thread-safe)
    032 */
    033public class JarArchiveEntry extends ZipArchiveEntry {
    034
    035    // These are always null - see https://issues.apache.org/jira/browse/COMPRESS-18 for discussion
    036    private final Attributes manifestAttributes = null;
    037    private final Certificate[] certificates = null;
    038
    039    public JarArchiveEntry(final ZipEntry entry) throws ZipException {
    040        super(entry);
    041    }
    042
    043    public JarArchiveEntry(final String name) {
    044        super(name);
    045    }
    046
    047    public JarArchiveEntry(final ZipArchiveEntry entry) throws ZipException {
    048        super(entry);
    049    }
    050
    051    public JarArchiveEntry(final JarEntry entry) throws ZipException {
    052        super(entry);
    053
    054    }
    055
    056    /**
    057     * This method is not implemented and won't ever be.
    058     * The JVM equivalent has a different name {@link java.util.jar.JarEntry#getAttributes()}
    059     *
    060     * @deprecated since 1.5, do not use; always returns null
    061     * @return Always returns null.
    062     */
    063    @Deprecated
    064    public Attributes getManifestAttributes() {
    065        return manifestAttributes;
    066    }
    067
    068    /**
    069     * Return a copy of the list of certificates or null if there are none.
    070     *
    071     * @return Always returns null in the current implementation
    072     *
    073     * @deprecated since 1.5, not currently implemented
    074     */
    075    @Deprecated
    076    public Certificate[] getCertificates() {
    077        if (certificates != null) { // never true currently
    078            final Certificate[] certs = new Certificate[certificates.length];
    079            System.arraycopy(certificates, 0, certs, 0, certs.length);
    080            return certs;
    081        }
    082        /*
    083         * Note, the method
    084         * Certificate[] java.util.jar.JarEntry.getCertificates()
    085         * also returns null or the list of certificates (but not copied)
    086         */
    087        return null;
    088    }
    089
    090}