001/*
002 * Copyright 2018 Paul Schaub.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 *     http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016package org.pgpainless.algorithm;
017
018import java.util.HashMap;
019import java.util.Map;
020
021import org.bouncycastle.bcpg.CompressionAlgorithmTags;
022
023public enum CompressionAlgorithm {
024
025    UNCOMPRESSED   (CompressionAlgorithmTags.UNCOMPRESSED),
026    ZIP            (CompressionAlgorithmTags.ZIP),
027    ZLIB           (CompressionAlgorithmTags.ZLIB),
028    BZIP2          (CompressionAlgorithmTags.BZIP2),
029    ;
030
031    private static final Map<Integer, CompressionAlgorithm> MAP = new HashMap<>();
032
033    static {
034        for (CompressionAlgorithm c : CompressionAlgorithm.values()) {
035            MAP.put(c.algorithmId, c);
036        }
037    }
038
039    public static CompressionAlgorithm fromId(int id) {
040        return MAP.get(id);
041    }
042
043    private final int algorithmId;
044
045    CompressionAlgorithm(int id) {
046        this.algorithmId = id;
047    }
048
049    public int getAlgorithmId() {
050        return algorithmId;
051    }
052}