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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.demux;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.util.Map;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.util.Set;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.concurrent.ConcurrentHashMap;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span><a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import org.apache.mina.core.session.AttributeKey;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span>import org.apache.mina.core.session.IoSession;<a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.mina.core.session.UnknownMessageTypeException;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.mina.filter.codec.ProtocolEncoder;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.mina.filter.codec.ProtocolEncoderOutput;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.mina.util.CopyOnWriteMap;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.mina.util.IdentityHashSet;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span><a name="line.33"></a> |
| <span class="sourceLineNo">034</span>/**<a name="line.34"></a> |
| <span class="sourceLineNo">035</span> * A composite {@link ProtocolEncoder} that demultiplexes incoming message<a name="line.35"></a> |
| <span class="sourceLineNo">036</span> * encoding requests into an appropriate {@link MessageEncoder}.<a name="line.36"></a> |
| <span class="sourceLineNo">037</span> *<a name="line.37"></a> |
| <span class="sourceLineNo">038</span> * <h2>Disposing resources acquired by {@link MessageEncoder}</h2><a name="line.38"></a> |
| <span class="sourceLineNo">039</span> * <p><a name="line.39"></a> |
| <span class="sourceLineNo">040</span> * Override {@link #dispose(IoSession)} method. Please don't forget to call<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> * <tt>super.dispose()</tt>.<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> *<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> * @author <a href="http://mina.apache.org">Apache MINA Project</a><a name="line.43"></a> |
| <span class="sourceLineNo">044</span> *<a name="line.44"></a> |
| <span class="sourceLineNo">045</span> * @see MessageEncoderFactory<a name="line.45"></a> |
| <span class="sourceLineNo">046</span> * @see MessageEncoder<a name="line.46"></a> |
| <span class="sourceLineNo">047</span> */<a name="line.47"></a> |
| <span class="sourceLineNo">048</span>public class DemuxingProtocolEncoder implements ProtocolEncoder {<a name="line.48"></a> |
| <span class="sourceLineNo">049</span><a name="line.49"></a> |
| <span class="sourceLineNo">050</span> private final AttributeKey STATE = new AttributeKey(getClass(), "state");<a name="line.50"></a> |
| <span class="sourceLineNo">051</span><a name="line.51"></a> |
| <span class="sourceLineNo">052</span> @SuppressWarnings("rawtypes")<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> private final Map<Class<?>, MessageEncoderFactory> type2encoderFactory = new CopyOnWriteMap<Class<?>, MessageEncoderFactory>();<a name="line.53"></a> |
| <span class="sourceLineNo">054</span><a name="line.54"></a> |
| <span class="sourceLineNo">055</span> private static final Class<?>[] EMPTY_PARAMS = new Class[0];<a name="line.55"></a> |
| <span class="sourceLineNo">056</span><a name="line.56"></a> |
| <span class="sourceLineNo">057</span> public DemuxingProtocolEncoder() {<a name="line.57"></a> |
| <span class="sourceLineNo">058</span> // Do nothing<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> @SuppressWarnings({ "rawtypes", "unchecked" })<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> public void addMessageEncoder(Class<?> messageType, Class<? extends MessageEncoder> encoderClass) {<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> if (encoderClass == null) {<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> throw new IllegalArgumentException("encoderClass");<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> }<a name="line.65"></a> |
| <span class="sourceLineNo">066</span><a name="line.66"></a> |
| <span class="sourceLineNo">067</span> try {<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> encoderClass.getConstructor(EMPTY_PARAMS);<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> } catch (NoSuchMethodException e) {<a name="line.69"></a> |
| <span class="sourceLineNo">070</span> throw new IllegalArgumentException("The specified class doesn't have a public default constructor.");<a name="line.70"></a> |
| <span class="sourceLineNo">071</span> }<a name="line.71"></a> |
| <span class="sourceLineNo">072</span><a name="line.72"></a> |
| <span class="sourceLineNo">073</span> boolean registered = false;<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> if (MessageEncoder.class.isAssignableFrom(encoderClass)) {<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> addMessageEncoder(messageType, new DefaultConstructorMessageEncoderFactory(encoderClass));<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> registered = true;<a name="line.76"></a> |
| <span class="sourceLineNo">077</span> }<a name="line.77"></a> |
| <span class="sourceLineNo">078</span><a name="line.78"></a> |
| <span class="sourceLineNo">079</span> if (!registered) {<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> throw new IllegalArgumentException("Unregisterable type: " + encoderClass);<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><a name="line.83"></a> |
| <span class="sourceLineNo">084</span> @SuppressWarnings({ "unchecked", "rawtypes" })<a name="line.84"></a> |
| <span class="sourceLineNo">085</span> public <T> void addMessageEncoder(Class<T> messageType, MessageEncoder<? super T> encoder) {<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> addMessageEncoder(messageType, new SingletonMessageEncoderFactory(encoder));<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> }<a name="line.87"></a> |
| <span class="sourceLineNo">088</span><a name="line.88"></a> |
| <span class="sourceLineNo">089</span> public <T> void addMessageEncoder(Class<T> messageType, MessageEncoderFactory<? super T> factory) {<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> if (messageType == null) {<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> throw new IllegalArgumentException("messageType");<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> }<a name="line.92"></a> |
| <span class="sourceLineNo">093</span><a name="line.93"></a> |
| <span class="sourceLineNo">094</span> if (factory == null) {<a name="line.94"></a> |
| <span class="sourceLineNo">095</span> throw new IllegalArgumentException("factory");<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> synchronized (type2encoderFactory) {<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> if (type2encoderFactory.containsKey(messageType)) {<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> throw new IllegalStateException("The specified message type (" + messageType.getName()<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> + ") is registered already.");<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> }<a name="line.102"></a> |
| <span class="sourceLineNo">103</span><a name="line.103"></a> |
| <span class="sourceLineNo">104</span> type2encoderFactory.put(messageType, factory);<a name="line.104"></a> |
| <span class="sourceLineNo">105</span> }<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> @SuppressWarnings("rawtypes")<a name="line.108"></a> |
| <span class="sourceLineNo">109</span> public void addMessageEncoder(Iterable<Class<?>> messageTypes, Class<? extends MessageEncoder> encoderClass) {<a name="line.109"></a> |
| <span class="sourceLineNo">110</span> for (Class<?> messageType : messageTypes) {<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> addMessageEncoder(messageType, encoderClass);<a name="line.111"></a> |
| <span class="sourceLineNo">112</span> }<a name="line.112"></a> |
| <span class="sourceLineNo">113</span> }<a name="line.113"></a> |
| <span class="sourceLineNo">114</span><a name="line.114"></a> |
| <span class="sourceLineNo">115</span> public <T> void addMessageEncoder(Iterable<Class<? extends T>> messageTypes, MessageEncoder<? super T> encoder) {<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> for (Class<? extends T> messageType : messageTypes) {<a name="line.116"></a> |
| <span class="sourceLineNo">117</span> addMessageEncoder(messageType, encoder);<a name="line.117"></a> |
| <span class="sourceLineNo">118</span> }<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> }<a name="line.119"></a> |
| <span class="sourceLineNo">120</span><a name="line.120"></a> |
| <span class="sourceLineNo">121</span> public <T> void addMessageEncoder(Iterable<Class<? extends T>> messageTypes,<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> MessageEncoderFactory<? super T> factory) {<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> for (Class<? extends T> messageType : messageTypes) {<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> addMessageEncoder(messageType, factory);<a name="line.124"></a> |
| <span class="sourceLineNo">125</span> }<a name="line.125"></a> |
| <span class="sourceLineNo">126</span> }<a name="line.126"></a> |
| <span class="sourceLineNo">127</span><a name="line.127"></a> |
| <span class="sourceLineNo">128</span> /**<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> * {@inheritDoc}<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> */<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> public void encode(IoSession session, Object message, ProtocolEncoderOutput out) throws Exception {<a name="line.131"></a> |
| <span class="sourceLineNo">132</span> State state = getState(session);<a name="line.132"></a> |
| <span class="sourceLineNo">133</span> MessageEncoder<Object> encoder = findEncoder(state, message.getClass());<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> if (encoder != null) {<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> encoder.encode(session, message, out);<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> } else {<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> throw new UnknownMessageTypeException("No message encoder found for message: " + message);<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> }<a name="line.138"></a> |
| <span class="sourceLineNo">139</span> }<a name="line.139"></a> |
| <span class="sourceLineNo">140</span><a name="line.140"></a> |
| <span class="sourceLineNo">141</span> protected MessageEncoder<Object> findEncoder(State state, Class<?> type) {<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> return findEncoder(state, type, null);<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> @SuppressWarnings("unchecked")<a name="line.145"></a> |
| <span class="sourceLineNo">146</span> private MessageEncoder<Object> findEncoder(State state, Class<?> type, Set<Class<?>> triedClasses) {<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> @SuppressWarnings("rawtypes")<a name="line.147"></a> |
| <span class="sourceLineNo">148</span> MessageEncoder encoder = null;<a name="line.148"></a> |
| <span class="sourceLineNo">149</span><a name="line.149"></a> |
| <span class="sourceLineNo">150</span> if (triedClasses != null && triedClasses.contains(type)) {<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> return null;<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> /*<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> * Try the cache first.<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> */<a name="line.156"></a> |
| <span class="sourceLineNo">157</span> encoder = state.findEncoderCache.get(type);<a name="line.157"></a> |
| <span class="sourceLineNo">158</span><a name="line.158"></a> |
| <span class="sourceLineNo">159</span> if (encoder != null) {<a name="line.159"></a> |
| <span class="sourceLineNo">160</span> return encoder;<a name="line.160"></a> |
| <span class="sourceLineNo">161</span> }<a name="line.161"></a> |
| <span class="sourceLineNo">162</span><a name="line.162"></a> |
| <span class="sourceLineNo">163</span> /*<a name="line.163"></a> |
| <span class="sourceLineNo">164</span> * Try the registered encoders for an immediate match.<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> */<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> encoder = state.type2encoder.get(type);<a name="line.166"></a> |
| <span class="sourceLineNo">167</span><a name="line.167"></a> |
| <span class="sourceLineNo">168</span> if (encoder == null) {<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> /*<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> * No immediate match could be found. Search the type's interfaces.<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> */<a name="line.171"></a> |
| <span class="sourceLineNo">172</span><a name="line.172"></a> |
| <span class="sourceLineNo">173</span> if (triedClasses == null) {<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> triedClasses = new IdentityHashSet<Class<?>>();<a name="line.174"></a> |
| <span class="sourceLineNo">175</span> }<a name="line.175"></a> |
| <span class="sourceLineNo">176</span><a name="line.176"></a> |
| <span class="sourceLineNo">177</span> triedClasses.add(type);<a name="line.177"></a> |
| <span class="sourceLineNo">178</span><a name="line.178"></a> |
| <span class="sourceLineNo">179</span> Class<?>[] interfaces = type.getInterfaces();<a name="line.179"></a> |
| <span class="sourceLineNo">180</span><a name="line.180"></a> |
| <span class="sourceLineNo">181</span> for (Class<?> element : interfaces) {<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> encoder = findEncoder(state, element, triedClasses);<a name="line.182"></a> |
| <span class="sourceLineNo">183</span><a name="line.183"></a> |
| <span class="sourceLineNo">184</span> if (encoder != null) {<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> break;<a name="line.185"></a> |
| <span class="sourceLineNo">186</span> }<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><a name="line.189"></a> |
| <span class="sourceLineNo">190</span> if (encoder == null) {<a name="line.190"></a> |
| <span class="sourceLineNo">191</span> /*<a name="line.191"></a> |
| <span class="sourceLineNo">192</span> * No match in type's interfaces could be found. Search the<a name="line.192"></a> |
| <span class="sourceLineNo">193</span> * superclass.<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> Class<?> superclass = type.getSuperclass();<a name="line.196"></a> |
| <span class="sourceLineNo">197</span><a name="line.197"></a> |
| <span class="sourceLineNo">198</span> if (superclass != null) {<a name="line.198"></a> |
| <span class="sourceLineNo">199</span> encoder = findEncoder(state, superclass);<a name="line.199"></a> |
| <span class="sourceLineNo">200</span> }<a name="line.200"></a> |
| <span class="sourceLineNo">201</span> }<a name="line.201"></a> |
| <span class="sourceLineNo">202</span><a name="line.202"></a> |
| <span class="sourceLineNo">203</span> /*<a name="line.203"></a> |
| <span class="sourceLineNo">204</span> * Make sure the encoder is added to the cache. By updating the cache<a name="line.204"></a> |
| <span class="sourceLineNo">205</span> * here all the types (superclasses and interfaces) in the path which<a name="line.205"></a> |
| <span class="sourceLineNo">206</span> * led to a match will be cached along with the immediate message type.<a name="line.206"></a> |
| <span class="sourceLineNo">207</span> */<a name="line.207"></a> |
| <span class="sourceLineNo">208</span> if (encoder != null) {<a name="line.208"></a> |
| <span class="sourceLineNo">209</span> state.findEncoderCache.put(type, encoder);<a name="line.209"></a> |
| <span class="sourceLineNo">210</span> MessageEncoder<Object> tmpEncoder = state.findEncoderCache.putIfAbsent(type, encoder);<a name="line.210"></a> |
| <span class="sourceLineNo">211</span><a name="line.211"></a> |
| <span class="sourceLineNo">212</span> if (tmpEncoder != null) {<a name="line.212"></a> |
| <span class="sourceLineNo">213</span> encoder = tmpEncoder;<a name="line.213"></a> |
| <span class="sourceLineNo">214</span> }<a name="line.214"></a> |
| <span class="sourceLineNo">215</span> }<a name="line.215"></a> |
| <span class="sourceLineNo">216</span><a name="line.216"></a> |
| <span class="sourceLineNo">217</span> return encoder;<a name="line.217"></a> |
| <span class="sourceLineNo">218</span> }<a name="line.218"></a> |
| <span class="sourceLineNo">219</span><a name="line.219"></a> |
| <span class="sourceLineNo">220</span> /**<a name="line.220"></a> |
| <span class="sourceLineNo">221</span> * {@inheritDoc}<a name="line.221"></a> |
| <span class="sourceLineNo">222</span> */<a name="line.222"></a> |
| <span class="sourceLineNo">223</span> public void dispose(IoSession session) throws Exception {<a name="line.223"></a> |
| <span class="sourceLineNo">224</span> session.removeAttribute(STATE);<a name="line.224"></a> |
| <span class="sourceLineNo">225</span> }<a name="line.225"></a> |
| <span class="sourceLineNo">226</span><a name="line.226"></a> |
| <span class="sourceLineNo">227</span> private State getState(IoSession session) throws Exception {<a name="line.227"></a> |
| <span class="sourceLineNo">228</span> State state = (State) session.getAttribute(STATE);<a name="line.228"></a> |
| <span class="sourceLineNo">229</span> if (state == null) {<a name="line.229"></a> |
| <span class="sourceLineNo">230</span> state = new State();<a name="line.230"></a> |
| <span class="sourceLineNo">231</span> State oldState = (State) session.setAttributeIfAbsent(STATE, state);<a name="line.231"></a> |
| <span class="sourceLineNo">232</span> if (oldState != null) {<a name="line.232"></a> |
| <span class="sourceLineNo">233</span> state = oldState;<a name="line.233"></a> |
| <span class="sourceLineNo">234</span> }<a name="line.234"></a> |
| <span class="sourceLineNo">235</span> }<a name="line.235"></a> |
| <span class="sourceLineNo">236</span> return state;<a name="line.236"></a> |
| <span class="sourceLineNo">237</span> }<a name="line.237"></a> |
| <span class="sourceLineNo">238</span><a name="line.238"></a> |
| <span class="sourceLineNo">239</span> private class State {<a name="line.239"></a> |
| <span class="sourceLineNo">240</span> @SuppressWarnings("rawtypes")<a name="line.240"></a> |
| <span class="sourceLineNo">241</span> private final ConcurrentHashMap<Class<?>, MessageEncoder> findEncoderCache = new ConcurrentHashMap<Class<?>, MessageEncoder>();<a name="line.241"></a> |
| <span class="sourceLineNo">242</span><a name="line.242"></a> |
| <span class="sourceLineNo">243</span> @SuppressWarnings("rawtypes")<a name="line.243"></a> |
| <span class="sourceLineNo">244</span> private final Map<Class<?>, MessageEncoder> type2encoder = new ConcurrentHashMap<Class<?>, MessageEncoder>();<a name="line.244"></a> |
| <span class="sourceLineNo">245</span><a name="line.245"></a> |
| <span class="sourceLineNo">246</span> @SuppressWarnings("rawtypes")<a name="line.246"></a> |
| <span class="sourceLineNo">247</span> private State() throws Exception {<a name="line.247"></a> |
| <span class="sourceLineNo">248</span> for (Map.Entry<Class<?>, MessageEncoderFactory> e : type2encoderFactory.entrySet()) {<a name="line.248"></a> |
| <span class="sourceLineNo">249</span> type2encoder.put(e.getKey(), e.getValue().getEncoder());<a name="line.249"></a> |
| <span class="sourceLineNo">250</span> }<a name="line.250"></a> |
| <span class="sourceLineNo">251</span> }<a name="line.251"></a> |
| <span class="sourceLineNo">252</span> }<a name="line.252"></a> |
| <span class="sourceLineNo">253</span><a name="line.253"></a> |
| <span class="sourceLineNo">254</span> private static class SingletonMessageEncoderFactory<T> implements MessageEncoderFactory<T> {<a name="line.254"></a> |
| <span class="sourceLineNo">255</span> private final MessageEncoder<T> encoder;<a name="line.255"></a> |
| <span class="sourceLineNo">256</span><a name="line.256"></a> |
| <span class="sourceLineNo">257</span> private SingletonMessageEncoderFactory(MessageEncoder<T> encoder) {<a name="line.257"></a> |
| <span class="sourceLineNo">258</span> if (encoder == null) {<a name="line.258"></a> |
| <span class="sourceLineNo">259</span> throw new IllegalArgumentException("encoder");<a name="line.259"></a> |
| <span class="sourceLineNo">260</span> }<a name="line.260"></a> |
| <span class="sourceLineNo">261</span> this.encoder = encoder;<a name="line.261"></a> |
| <span class="sourceLineNo">262</span> }<a name="line.262"></a> |
| <span class="sourceLineNo">263</span><a name="line.263"></a> |
| <span class="sourceLineNo">264</span> public MessageEncoder<T> getEncoder() {<a name="line.264"></a> |
| <span class="sourceLineNo">265</span> return encoder;<a name="line.265"></a> |
| <span class="sourceLineNo">266</span> }<a name="line.266"></a> |
| <span class="sourceLineNo">267</span> }<a name="line.267"></a> |
| <span class="sourceLineNo">268</span><a name="line.268"></a> |
| <span class="sourceLineNo">269</span> private static class DefaultConstructorMessageEncoderFactory<T> implements MessageEncoderFactory<T> {<a name="line.269"></a> |
| <span class="sourceLineNo">270</span> private final Class<MessageEncoder<T>> encoderClass;<a name="line.270"></a> |
| <span class="sourceLineNo">271</span><a name="line.271"></a> |
| <span class="sourceLineNo">272</span> private DefaultConstructorMessageEncoderFactory(Class<MessageEncoder<T>> encoderClass) {<a name="line.272"></a> |
| <span class="sourceLineNo">273</span> if (encoderClass == null) {<a name="line.273"></a> |
| <span class="sourceLineNo">274</span> throw new IllegalArgumentException("encoderClass");<a name="line.274"></a> |
| <span class="sourceLineNo">275</span> }<a name="line.275"></a> |
| <span class="sourceLineNo">276</span><a name="line.276"></a> |
| <span class="sourceLineNo">277</span> if (!MessageEncoder.class.isAssignableFrom(encoderClass)) {<a name="line.277"></a> |
| <span class="sourceLineNo">278</span> throw new IllegalArgumentException("encoderClass is not assignable to MessageEncoder");<a name="line.278"></a> |
| <span class="sourceLineNo">279</span> }<a name="line.279"></a> |
| <span class="sourceLineNo">280</span> this.encoderClass = encoderClass;<a name="line.280"></a> |
| <span class="sourceLineNo">281</span> }<a name="line.281"></a> |
| <span class="sourceLineNo">282</span><a name="line.282"></a> |
| <span class="sourceLineNo">283</span> public MessageEncoder<T> getEncoder() throws Exception {<a name="line.283"></a> |
| <span class="sourceLineNo">284</span> return encoderClass.newInstance();<a name="line.284"></a> |
| <span class="sourceLineNo">285</span> }<a name="line.285"></a> |
| <span class="sourceLineNo">286</span> }<a name="line.286"></a> |
| <span class="sourceLineNo">287</span>}<a name="line.287"></a> |
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| </pre> |
| </div> |
| </body> |
| </html> |
