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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    *   http://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.compression;
17  
18  import io.netty.channel.ChannelHandler;
19  import io.netty.handler.codec.http.websocketx.extensions.WebSocketClientExtensionHandler;
20  
21  /**
22   * Extends <tt>io.netty.handler.codec.http.websocketx.extensions.compression.WebSocketClientExtensionHandler</tt>
23   * to handle the most common WebSocket Compression Extensions.
24   *
25   * See <tt>io.netty.example.http.websocketx.client.WebSocketClient</tt> for usage.
26   */
27  @ChannelHandler.Sharable
28  public final class WebSocketClientCompressionHandler extends WebSocketClientExtensionHandler {
29  
30      public static final WebSocketClientCompressionHandler INSTANCE = new WebSocketClientCompressionHandler();
31  
32      private WebSocketClientCompressionHandler() {
33          super(new PerMessageDeflateClientExtensionHandshaker(),
34                  new DeflateFrameClientExtensionHandshaker(false),
35                  new DeflateFrameClientExtensionHandshaker(true));
36      }
37  
38  }