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<pre><span class="sourceLineNo">001</span>/*<a name="line.1"></a>
<span class="sourceLineNo">002</span> * Licensed to the Apache Software Foundation (ASF) under one<a name="line.2"></a>
<span class="sourceLineNo">003</span> * or more contributor license agreements. See the NOTICE file<a name="line.3"></a>
<span class="sourceLineNo">004</span> * distributed with this work for additional information<a name="line.4"></a>
<span class="sourceLineNo">005</span> * regarding copyright ownership. The ASF licenses this file<a name="line.5"></a>
<span class="sourceLineNo">006</span> * to you under the Apache License, Version 2.0 (the<a name="line.6"></a>
<span class="sourceLineNo">007</span> * "License"); you may not use this file except in compliance<a name="line.7"></a>
<span class="sourceLineNo">008</span> * with the License. You may obtain a copy of the License at<a name="line.8"></a>
<span class="sourceLineNo">009</span> *<a name="line.9"></a>
<span class="sourceLineNo">010</span> * http://www.apache.org/licenses/LICENSE-2.0<a name="line.10"></a>
<span class="sourceLineNo">011</span> *<a name="line.11"></a>
<span class="sourceLineNo">012</span> * Unless required by applicable law or agreed to in writing,<a name="line.12"></a>
<span class="sourceLineNo">013</span> * software distributed under the License is distributed on an<a name="line.13"></a>
<span class="sourceLineNo">014</span> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY<a name="line.14"></a>
<span class="sourceLineNo">015</span> * KIND, either express or implied. See the License for the<a name="line.15"></a>
<span class="sourceLineNo">016</span> * specific language governing permissions and limitations<a name="line.16"></a>
<span class="sourceLineNo">017</span> * under the License.<a name="line.17"></a>
<span class="sourceLineNo">018</span> *<a name="line.18"></a>
<span class="sourceLineNo">019</span> */<a name="line.19"></a>
<span class="sourceLineNo">020</span>package org.apache.mina.handler.chain;<a name="line.20"></a>
<span class="sourceLineNo">021</span><a name="line.21"></a>
<span class="sourceLineNo">022</span>import org.apache.mina.core.session.DummySession;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import org.apache.mina.core.session.IoSession;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import org.junit.Test;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import static org.junit.Assert.assertEquals;<a name="line.25"></a>
<span class="sourceLineNo">026</span><a name="line.26"></a>
<span class="sourceLineNo">027</span>/**<a name="line.27"></a>
<span class="sourceLineNo">028</span> * A test case for {@link ChainedIoHandler}.<a name="line.28"></a>
<span class="sourceLineNo">029</span> *<a name="line.29"></a>
<span class="sourceLineNo">030</span> * @author &lt;a href="http://mina.apache.org"&gt;Apache MINA Project&lt;/a&gt;<a name="line.30"></a>
<span class="sourceLineNo">031</span> */<a name="line.31"></a>
<span class="sourceLineNo">032</span>public class ChainedIoHandlerTest {<a name="line.32"></a>
<span class="sourceLineNo">033</span> @Test<a name="line.33"></a>
<span class="sourceLineNo">034</span> public void testChainedCommand() throws Exception {<a name="line.34"></a>
<span class="sourceLineNo">035</span> IoHandlerChain chain = new IoHandlerChain();<a name="line.35"></a>
<span class="sourceLineNo">036</span> StringBuilder buf = new StringBuilder();<a name="line.36"></a>
<span class="sourceLineNo">037</span> chain.addLast("A", new TestCommand(buf, 'A'));<a name="line.37"></a>
<span class="sourceLineNo">038</span> chain.addLast("B", new TestCommand(buf, 'B'));<a name="line.38"></a>
<span class="sourceLineNo">039</span> chain.addLast("C", new TestCommand(buf, 'C'));<a name="line.39"></a>
<span class="sourceLineNo">040</span><a name="line.40"></a>
<span class="sourceLineNo">041</span> new ChainedIoHandler(chain).messageReceived(new DummySession(), null);<a name="line.41"></a>
<span class="sourceLineNo">042</span><a name="line.42"></a>
<span class="sourceLineNo">043</span> assertEquals("ABC", buf.toString());<a name="line.43"></a>
<span class="sourceLineNo">044</span> }<a name="line.44"></a>
<span class="sourceLineNo">045</span><a name="line.45"></a>
<span class="sourceLineNo">046</span> private class TestCommand implements IoHandlerCommand {<a name="line.46"></a>
<span class="sourceLineNo">047</span> private final StringBuilder buf;<a name="line.47"></a>
<span class="sourceLineNo">048</span><a name="line.48"></a>
<span class="sourceLineNo">049</span> private final char ch;<a name="line.49"></a>
<span class="sourceLineNo">050</span><a name="line.50"></a>
<span class="sourceLineNo">051</span> public TestCommand(StringBuilder buf, char ch) {<a name="line.51"></a>
<span class="sourceLineNo">052</span> this.buf = buf;<a name="line.52"></a>
<span class="sourceLineNo">053</span> this.ch = ch;<a name="line.53"></a>
<span class="sourceLineNo">054</span> }<a name="line.54"></a>
<span class="sourceLineNo">055</span><a name="line.55"></a>
<span class="sourceLineNo">056</span> public void execute(NextCommand next, IoSession session, Object message) throws Exception {<a name="line.56"></a>
<span class="sourceLineNo">057</span> buf.append(ch);<a name="line.57"></a>
<span class="sourceLineNo">058</span> next.execute(session, message);<a name="line.58"></a>
<span class="sourceLineNo">059</span> }<a name="line.59"></a>
<span class="sourceLineNo">060</span> }<a name="line.60"></a>
<span class="sourceLineNo">061</span>}<a name="line.61"></a>
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