/
TelnetClientInitializer.java
53 lines (46 loc) · 2 KB
/
TelnetClientInitializer.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
package com.example.mydemos.net.netty.telnet;
/*
* Copyright 2012 The Netty Project
*
* The Netty Project licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.DelimiterBasedFrameDecoder;
import io.netty.handler.codec.Delimiters;
import io.netty.handler.codec.string.StringDecoder;
import io.netty.handler.codec.string.StringEncoder;
/**
* Creates a newly configured {@link ChannelPipeline} for a new channel.
*/
public class TelnetClientInitializer extends ChannelInitializer<SocketChannel> {
private static final StringDecoder DECODER = new StringDecoder();
private static final StringEncoder ENCODER = new StringEncoder();
private TelnetClientHandler CLIENTHANDLER = new TelnetClientHandler(null);
public TelnetClientInitializer(TelnetClientHandler messageHandler){
if(messageHandler!=null)
this.CLIENTHANDLER=messageHandler;
}
@Override
public void initChannel(SocketChannel ch) throws Exception {
ChannelPipeline pipeline = ch.pipeline();
// Add the text line codec combination first,
pipeline.addLast("framer", new DelimiterBasedFrameDecoder(
8192, Delimiters.lineDelimiter()));
pipeline.addLast("decoder", DECODER);
pipeline.addLast("encoder", ENCODER);
// and then business logic.
pipeline.addLast("handler", CLIENTHANDLER);
}
}