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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.filter.codec;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import static org.junit.Assert.assertEquals;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import static org.junit.Assert.assertFalse;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import static org.junit.Assert.assertTrue;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import static org.junit.Assert.fail;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span><a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import java.net.SocketAddress;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span><a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.mina.core.buffer.IoBuffer;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.mina.core.service.DefaultTransportMetadata;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.mina.core.session.IoSession;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.mina.core.session.IoSessionConfig;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.junit.After;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.junit.Before;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.junit.Test;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span><a name="line.36"></a> |
| <span class="sourceLineNo">037</span>/**<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> * Tests {@link CumulativeProtocolDecoder}.<a name="line.38"></a> |
| <span class="sourceLineNo">039</span> *<a name="line.39"></a> |
| <span class="sourceLineNo">040</span> * @author <a href="http://mina.apache.org">Apache MINA Project</a><a name="line.40"></a> |
| <span class="sourceLineNo">041</span> */<a name="line.41"></a> |
| <span class="sourceLineNo">042</span>public class CumulativeProtocolDecoderTest {<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> private final ProtocolCodecSession session = new ProtocolCodecSession();<a name="line.43"></a> |
| <span class="sourceLineNo">044</span><a name="line.44"></a> |
| <span class="sourceLineNo">045</span> private IoBuffer buf;<a name="line.45"></a> |
| <span class="sourceLineNo">046</span><a name="line.46"></a> |
| <span class="sourceLineNo">047</span> private IntegerDecoder decoder;<a name="line.47"></a> |
| <span class="sourceLineNo">048</span><a name="line.48"></a> |
| <span class="sourceLineNo">049</span> @Before<a name="line.49"></a> |
| <span class="sourceLineNo">050</span> public void setUp() throws Exception {<a name="line.50"></a> |
| <span class="sourceLineNo">051</span> buf = IoBuffer.allocate(16);<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> decoder = new IntegerDecoder();<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> session.setTransportMetadata(new DefaultTransportMetadata("mina", "dummy", false, true, SocketAddress.class,<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> IoSessionConfig.class, IoBuffer.class));<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> }<a name="line.55"></a> |
| <span class="sourceLineNo">056</span><a name="line.56"></a> |
| <span class="sourceLineNo">057</span> @After<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> public void tearDown() throws Exception {<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> decoder.dispose(session);<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> |
| <span class="sourceLineNo">062</span> @Test<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> public void testCumulation() throws Exception {<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> buf.put((byte) 0);<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> buf.flip();<a name="line.65"></a> |
| <span class="sourceLineNo">066</span><a name="line.66"></a> |
| <span class="sourceLineNo">067</span> decoder.decode(session, buf, session.getDecoderOutput());<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> assertEquals(0, session.getDecoderOutputQueue().size());<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> assertEquals(buf.limit(), buf.position());<a name="line.69"></a> |
| <span class="sourceLineNo">070</span><a name="line.70"></a> |
| <span class="sourceLineNo">071</span> buf.clear();<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> buf.put((byte) 0);<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> buf.put((byte) 0);<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> buf.put((byte) 1);<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> buf.flip();<a name="line.75"></a> |
| <span class="sourceLineNo">076</span><a name="line.76"></a> |
| <span class="sourceLineNo">077</span> decoder.decode(session, buf, session.getDecoderOutput());<a name="line.77"></a> |
| <span class="sourceLineNo">078</span> assertEquals(1, session.getDecoderOutputQueue().size());<a name="line.78"></a> |
| <span class="sourceLineNo">079</span> assertEquals(new Integer(1), session.getDecoderOutputQueue().poll());<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> assertEquals(buf.limit(), buf.position());<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> }<a name="line.81"></a> |
| <span class="sourceLineNo">082</span><a name="line.82"></a> |
| <span class="sourceLineNo">083</span> @Test<a name="line.83"></a> |
| <span class="sourceLineNo">084</span> public void testRepeatitiveDecode() throws Exception {<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> for (int i = 0; i < 4; i++) {<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> buf.putInt(i);<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> }<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> buf.flip();<a name="line.88"></a> |
| <span class="sourceLineNo">089</span><a name="line.89"></a> |
| <span class="sourceLineNo">090</span> decoder.decode(session, buf, session.getDecoderOutput());<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> assertEquals(4, session.getDecoderOutputQueue().size());<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> assertEquals(buf.limit(), buf.position());<a name="line.92"></a> |
| <span class="sourceLineNo">093</span><a name="line.93"></a> |
| <span class="sourceLineNo">094</span> for (int i = 0; i < 4; i++) {<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> assertTrue(session.getDecoderOutputQueue().contains(i));<a name="line.95"></a> |
| <span class="sourceLineNo">096</span> }<a name="line.96"></a> |
| <span class="sourceLineNo">097</span> }<a name="line.97"></a> |
| <span class="sourceLineNo">098</span><a name="line.98"></a> |
| <span class="sourceLineNo">099</span> @Test<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> public void testWrongImplementationDetection() throws Exception {<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> try {<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> new WrongDecoder().decode(session, buf, session.getDecoderOutput());<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> fail();<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> } catch (IllegalStateException e) {<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> // OK<a name="line.105"></a> |
| <span class="sourceLineNo">106</span> }<a name="line.106"></a> |
| <span class="sourceLineNo">107</span> }<a name="line.107"></a> |
| <span class="sourceLineNo">108</span><a name="line.108"></a> |
| <span class="sourceLineNo">109</span> @Test<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> public void testBufferDerivation() throws Exception {<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> decoder = new DuplicatingIntegerDecoder();<a name="line.111"></a> |
| <span class="sourceLineNo">112</span><a name="line.112"></a> |
| <span class="sourceLineNo">113</span> buf.putInt(1);<a name="line.113"></a> |
| <span class="sourceLineNo">114</span><a name="line.114"></a> |
| <span class="sourceLineNo">115</span> // Put some extra byte to make the decoder create an internal buffer.<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> buf.put((byte) 0);<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> buf.flip();<a name="line.117"></a> |
| <span class="sourceLineNo">118</span><a name="line.118"></a> |
| <span class="sourceLineNo">119</span> decoder.decode(session, buf, session.getDecoderOutput());<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> assertEquals(1, session.getDecoderOutputQueue().size());<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> assertEquals(1, session.getDecoderOutputQueue().poll());<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> assertEquals(buf.limit(), buf.position());<a name="line.122"></a> |
| <span class="sourceLineNo">123</span><a name="line.123"></a> |
| <span class="sourceLineNo">124</span> // Keep appending to the internal buffer.<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> // DuplicatingIntegerDecoder will keep duplicating the internal<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> // buffer to disable auto-expansion, and CumulativeProtocolDecoder<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> // should detect that user derived its internal buffer.<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> // Consequently, CumulativeProtocolDecoder will perform <a name="line.128"></a> |
| <span class="sourceLineNo">129</span> // reallocation to avoid putting incoming data into<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> // the internal buffer with auto-expansion disabled.<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> for (int i = 2; i < 10; i++) {<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> buf.clear();<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> buf.putInt(i);<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> // Put some extra byte to make the decoder keep the internal buffer.<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> buf.put((byte) 0);<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> buf.flip();<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> buf.position(1);<a name="line.137"></a> |
| <span class="sourceLineNo">138</span><a name="line.138"></a> |
| <span class="sourceLineNo">139</span> decoder.decode(session, buf, session.getDecoderOutput());<a name="line.139"></a> |
| <span class="sourceLineNo">140</span> assertEquals(1, session.getDecoderOutputQueue().size());<a name="line.140"></a> |
| <span class="sourceLineNo">141</span> assertEquals(i, session.getDecoderOutputQueue().poll());<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> assertEquals(buf.limit(), buf.position());<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> }<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> }<a name="line.144"></a> |
| <span class="sourceLineNo">145</span><a name="line.145"></a> |
| <span class="sourceLineNo">146</span> private static class IntegerDecoder extends CumulativeProtocolDecoder {<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> /**<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> * Default constructor<a name="line.148"></a> |
| <span class="sourceLineNo">149</span> */<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> public IntegerDecoder() {<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> super();<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> }<a name="line.152"></a> |
| <span class="sourceLineNo">153</span><a name="line.153"></a> |
| <span class="sourceLineNo">154</span> @Override<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> protected boolean doDecode(IoSession session, IoBuffer in, ProtocolDecoderOutput out) throws Exception {<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> assertTrue(in.hasRemaining());<a name="line.156"></a> |
| <span class="sourceLineNo">157</span><a name="line.157"></a> |
| <span class="sourceLineNo">158</span> if (in.remaining() < 4) {<a name="line.158"></a> |
| <span class="sourceLineNo">159</span> return false;<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> }<a name="line.160"></a> |
| <span class="sourceLineNo">161</span><a name="line.161"></a> |
| <span class="sourceLineNo">162</span> out.write(new Integer(in.getInt()));<a name="line.162"></a> |
| <span class="sourceLineNo">163</span> return true;<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> }<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> }<a name="line.165"></a> |
| <span class="sourceLineNo">166</span><a name="line.166"></a> |
| <span class="sourceLineNo">167</span> private static class WrongDecoder extends CumulativeProtocolDecoder {<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> /**<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> * Default constructor<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> */<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> public WrongDecoder() {<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> super();<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> }<a name="line.173"></a> |
| <span class="sourceLineNo">174</span><a name="line.174"></a> |
| <span class="sourceLineNo">175</span> @Override<a name="line.175"></a> |
| <span class="sourceLineNo">176</span> protected boolean doDecode(IoSession session, IoBuffer in, ProtocolDecoderOutput out) throws Exception {<a name="line.176"></a> |
| <span class="sourceLineNo">177</span> return true;<a name="line.177"></a> |
| <span class="sourceLineNo">178</span> }<a name="line.178"></a> |
| <span class="sourceLineNo">179</span> }<a name="line.179"></a> |
| <span class="sourceLineNo">180</span><a name="line.180"></a> |
| <span class="sourceLineNo">181</span> private static class DuplicatingIntegerDecoder extends IntegerDecoder {<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> /**<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> * Default constructor<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> */<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> public DuplicatingIntegerDecoder() {<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> super();<a name="line.186"></a> |
| <span class="sourceLineNo">187</span> }<a name="line.187"></a> |
| <span class="sourceLineNo">188</span><a name="line.188"></a> |
| <span class="sourceLineNo">189</span> @Override<a name="line.189"></a> |
| <span class="sourceLineNo">190</span> protected boolean doDecode(IoSession session, IoBuffer in, ProtocolDecoderOutput out) throws Exception {<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> in.duplicate(); // Will disable auto-expansion.<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> assertFalse(in.isAutoExpand());<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> return super.doDecode(session, in, out);<a name="line.193"></a> |
| <span class="sourceLineNo">194</span> }<a name="line.194"></a> |
| <span class="sourceLineNo">195</span> }<a name="line.195"></a> |
| <span class="sourceLineNo">196</span>}<a name="line.196"></a> |
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