1 /*
2 * Copyright 2012 The Netty Project
3 *
4 * The Netty Project licenses this file to you under the Apache License,
5 * version 2.0 (the "License"); you may not use this file except in compliance
6 * with the License. You may obtain a copy of the License at:
7 *
8 * https://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13 * License for the specific language governing permissions and limitations
14 * under the License.
15 */
16 package io.netty.handler.codec.compression;
17
18 /**
19 * The container file formats that wrap the stream compressed by the DEFLATE
20 * algorithm.
21 */
22 public enum ZlibWrapper {
23 /**
24 * The ZLIB wrapper as specified in <a href="https://tools.ietf.org/html/rfc1950">RFC 1950</a>.
25 */
26 ZLIB,
27 /**
28 * The GZIP wrapper as specified in <a href="https://tools.ietf.org/html/rfc1952">RFC 1952</a>.
29 */
30 GZIP,
31 /**
32 * Raw DEFLATE stream only (no header and no footer).
33 */
34 NONE,
35 /**
36 * Try {@link #ZLIB} first and then {@link #NONE} if the first attempt fails.
37 * Please note that you can specify this wrapper type only when decompressing.
38 */
39 ZLIB_OR_NONE
40 }