1 /*
2 * Copyright 2014 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.http.websocketx.extensions;
17
18 /**
19 * Created once the handshake phase is done.
20 */
21 public interface WebSocketExtension {
22
23 int RSV1 = 0x04;
24 int RSV2 = 0x02;
25 int RSV3 = 0x01;
26
27 /**
28 * @return the reserved bit value to ensure that no other extension should interfere.
29 */
30 int rsv();
31
32 /**
33 * @return create the extension encoder.
34 */
35 WebSocketExtensionEncoder newExtensionEncoder();
36
37 /**
38 * @return create the extension decoder.
39 */
40 WebSocketExtensionDecoder newExtensionDecoder();
41
42 }