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.compressors.snappy; 020 021/** 022 * Dialects of the framing format that {@link FramedSnappyCompressorInputStream} can deal with. 023 * @since 1.12 024 */ 025public enum FramedSnappyDialect { 026 /** 027 * The standard as defined by the <a 028 * href="https://github.com/google/snappy/blob/master/framing_format.txt">Snappy 029 * framing format description</a> 030 */ 031 STANDARD(true, true), 032 /** 033 * The format used by Apple's iWork Archives (.iwa files). 034 */ 035 IWORK_ARCHIVE(false, false); 036 037 private final boolean streamIdentifier, checksumWithCompressedChunks; 038 039 private FramedSnappyDialect(final boolean hasStreamIdentifier, 040 final boolean usesChecksumWithCompressedChunks) { 041 this.streamIdentifier = hasStreamIdentifier; 042 this.checksumWithCompressedChunks = usesChecksumWithCompressedChunks; 043 } 044 045 boolean hasStreamIdentifier() { 046 return streamIdentifier; 047 } 048 049 boolean usesChecksumWithCompressedChunks() { 050 return checksumWithCompressedChunks; 051 } 052}