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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.transport.vmpipe;<a name="line.20"></a> |
| <span class="sourceLineNo">021</span><a name="line.21"></a> |
| <span class="sourceLineNo">022</span>import java.io.IOException;<a name="line.22"></a> |
| <span class="sourceLineNo">023</span>import java.net.SocketAddress;<a name="line.23"></a> |
| <span class="sourceLineNo">024</span>import java.util.HashSet;<a name="line.24"></a> |
| <span class="sourceLineNo">025</span>import java.util.Set;<a name="line.25"></a> |
| <span class="sourceLineNo">026</span>import java.util.concurrent.Executor;<a name="line.26"></a> |
| <span class="sourceLineNo">027</span><a name="line.27"></a> |
| <span class="sourceLineNo">028</span>import org.apache.mina.core.filterchain.IoFilterChain;<a name="line.28"></a> |
| <span class="sourceLineNo">029</span>import org.apache.mina.core.future.ConnectFuture;<a name="line.29"></a> |
| <span class="sourceLineNo">030</span>import org.apache.mina.core.future.DefaultConnectFuture;<a name="line.30"></a> |
| <span class="sourceLineNo">031</span>import org.apache.mina.core.future.IoFuture;<a name="line.31"></a> |
| <span class="sourceLineNo">032</span>import org.apache.mina.core.future.IoFutureListener;<a name="line.32"></a> |
| <span class="sourceLineNo">033</span>import org.apache.mina.core.service.AbstractIoConnector;<a name="line.33"></a> |
| <span class="sourceLineNo">034</span>import org.apache.mina.core.service.IoHandler;<a name="line.34"></a> |
| <span class="sourceLineNo">035</span>import org.apache.mina.core.service.TransportMetadata;<a name="line.35"></a> |
| <span class="sourceLineNo">036</span>import org.apache.mina.core.session.IdleStatusChecker;<a name="line.36"></a> |
| <span class="sourceLineNo">037</span>import org.apache.mina.core.session.IoSessionInitializer;<a name="line.37"></a> |
| <span class="sourceLineNo">038</span>import org.apache.mina.util.ExceptionMonitor;<a name="line.38"></a> |
| <span class="sourceLineNo">039</span><a name="line.39"></a> |
| <span class="sourceLineNo">040</span>/**<a name="line.40"></a> |
| <span class="sourceLineNo">041</span> * Connects to {@link IoHandler}s which is bound on the specified<a name="line.41"></a> |
| <span class="sourceLineNo">042</span> * {@link VmPipeAddress}.<a name="line.42"></a> |
| <span class="sourceLineNo">043</span> *<a name="line.43"></a> |
| <span class="sourceLineNo">044</span> * @author <a href="http://mina.apache.org">Apache MINA Project</a><a name="line.44"></a> |
| <span class="sourceLineNo">045</span> */<a name="line.45"></a> |
| <span class="sourceLineNo">046</span>public final class VmPipeConnector extends AbstractIoConnector {<a name="line.46"></a> |
| <span class="sourceLineNo">047</span><a name="line.47"></a> |
| <span class="sourceLineNo">048</span> // object used for checking session idle<a name="line.48"></a> |
| <span class="sourceLineNo">049</span> private IdleStatusChecker idleChecker;<a name="line.49"></a> |
| <span class="sourceLineNo">050</span><a name="line.50"></a> |
| <span class="sourceLineNo">051</span> /**<a name="line.51"></a> |
| <span class="sourceLineNo">052</span> * Creates a new instance.<a name="line.52"></a> |
| <span class="sourceLineNo">053</span> */<a name="line.53"></a> |
| <span class="sourceLineNo">054</span> public VmPipeConnector() {<a name="line.54"></a> |
| <span class="sourceLineNo">055</span> this(null);<a name="line.55"></a> |
| <span class="sourceLineNo">056</span> }<a name="line.56"></a> |
| <span class="sourceLineNo">057</span><a name="line.57"></a> |
| <span class="sourceLineNo">058</span> /**<a name="line.58"></a> |
| <span class="sourceLineNo">059</span> * Creates a new instance.<a name="line.59"></a> |
| <span class="sourceLineNo">060</span> * <a name="line.60"></a> |
| <span class="sourceLineNo">061</span> * @param executor The executor to use<a name="line.61"></a> |
| <span class="sourceLineNo">062</span> */<a name="line.62"></a> |
| <span class="sourceLineNo">063</span> public VmPipeConnector(Executor executor) {<a name="line.63"></a> |
| <span class="sourceLineNo">064</span> super(new DefaultVmPipeSessionConfig(), executor);<a name="line.64"></a> |
| <span class="sourceLineNo">065</span> idleChecker = new IdleStatusChecker();<a name="line.65"></a> |
| <span class="sourceLineNo">066</span> // we schedule the idle status checking task in this service exceutor<a name="line.66"></a> |
| <span class="sourceLineNo">067</span> // it will be woke up every seconds<a name="line.67"></a> |
| <span class="sourceLineNo">068</span> executeWorker(idleChecker.getNotifyingTask(), "idleStatusChecker");<a name="line.68"></a> |
| <span class="sourceLineNo">069</span> }<a name="line.69"></a> |
| <span class="sourceLineNo">070</span><a name="line.70"></a> |
| <span class="sourceLineNo">071</span> /**<a name="line.71"></a> |
| <span class="sourceLineNo">072</span> * {@inheritDoc}<a name="line.72"></a> |
| <span class="sourceLineNo">073</span> */<a name="line.73"></a> |
| <span class="sourceLineNo">074</span> public TransportMetadata getTransportMetadata() {<a name="line.74"></a> |
| <span class="sourceLineNo">075</span> return VmPipeSession.METADATA;<a name="line.75"></a> |
| <span class="sourceLineNo">076</span> }<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> * {@inheritDoc}<a name="line.79"></a> |
| <span class="sourceLineNo">080</span> */<a name="line.80"></a> |
| <span class="sourceLineNo">081</span> public VmPipeSessionConfig getSessionConfig() {<a name="line.81"></a> |
| <span class="sourceLineNo">082</span> return (VmPipeSessionConfig) sessionConfig;<a name="line.82"></a> |
| <span class="sourceLineNo">083</span> }<a name="line.83"></a> |
| <span class="sourceLineNo">084</span><a name="line.84"></a> |
| <span class="sourceLineNo">085</span> /**<a name="line.85"></a> |
| <span class="sourceLineNo">086</span> * {@inheritDoc}<a name="line.86"></a> |
| <span class="sourceLineNo">087</span> */<a name="line.87"></a> |
| <span class="sourceLineNo">088</span> @Override<a name="line.88"></a> |
| <span class="sourceLineNo">089</span> protected ConnectFuture connect0(SocketAddress remoteAddress, SocketAddress localAddress,<a name="line.89"></a> |
| <span class="sourceLineNo">090</span> IoSessionInitializer<? extends ConnectFuture> sessionInitializer) {<a name="line.90"></a> |
| <span class="sourceLineNo">091</span> VmPipe entry = VmPipeAcceptor.boundHandlers.get(remoteAddress);<a name="line.91"></a> |
| <span class="sourceLineNo">092</span> if (entry == null) {<a name="line.92"></a> |
| <span class="sourceLineNo">093</span> return DefaultConnectFuture.newFailedFuture(new IOException("Endpoint unavailable: " + remoteAddress));<a name="line.93"></a> |
| <span class="sourceLineNo">094</span> }<a name="line.94"></a> |
| <span class="sourceLineNo">095</span><a name="line.95"></a> |
| <span class="sourceLineNo">096</span> DefaultConnectFuture future = new DefaultConnectFuture();<a name="line.96"></a> |
| <span class="sourceLineNo">097</span><a name="line.97"></a> |
| <span class="sourceLineNo">098</span> // Assign the local address dynamically,<a name="line.98"></a> |
| <span class="sourceLineNo">099</span> VmPipeAddress actualLocalAddress;<a name="line.99"></a> |
| <span class="sourceLineNo">100</span> try {<a name="line.100"></a> |
| <span class="sourceLineNo">101</span> actualLocalAddress = nextLocalAddress();<a name="line.101"></a> |
| <span class="sourceLineNo">102</span> } catch (IOException e) {<a name="line.102"></a> |
| <span class="sourceLineNo">103</span> return DefaultConnectFuture.newFailedFuture(e);<a name="line.103"></a> |
| <span class="sourceLineNo">104</span> }<a name="line.104"></a> |
| <span class="sourceLineNo">105</span><a name="line.105"></a> |
| <span class="sourceLineNo">106</span> VmPipeSession localSession = new VmPipeSession(this, getListeners(), actualLocalAddress, getHandler(), entry);<a name="line.106"></a> |
| <span class="sourceLineNo">107</span><a name="line.107"></a> |
| <span class="sourceLineNo">108</span> initSession(localSession, future, sessionInitializer);<a name="line.108"></a> |
| <span class="sourceLineNo">109</span><a name="line.109"></a> |
| <span class="sourceLineNo">110</span> // and reclaim the local address when the connection is closed.<a name="line.110"></a> |
| <span class="sourceLineNo">111</span> localSession.getCloseFuture().addListener(LOCAL_ADDRESS_RECLAIMER);<a name="line.111"></a> |
| <span class="sourceLineNo">112</span><a name="line.112"></a> |
| <span class="sourceLineNo">113</span> // initialize connector session<a name="line.113"></a> |
| <span class="sourceLineNo">114</span> try {<a name="line.114"></a> |
| <span class="sourceLineNo">115</span> IoFilterChain filterChain = localSession.getFilterChain();<a name="line.115"></a> |
| <span class="sourceLineNo">116</span> this.getFilterChainBuilder().buildFilterChain(filterChain);<a name="line.116"></a> |
| <span class="sourceLineNo">117</span><a name="line.117"></a> |
| <span class="sourceLineNo">118</span> // The following sentences don't throw any exceptions.<a name="line.118"></a> |
| <span class="sourceLineNo">119</span> getListeners().fireSessionCreated(localSession);<a name="line.119"></a> |
| <span class="sourceLineNo">120</span> idleChecker.addSession(localSession);<a name="line.120"></a> |
| <span class="sourceLineNo">121</span> } catch (Exception e) {<a name="line.121"></a> |
| <span class="sourceLineNo">122</span> future.setException(e);<a name="line.122"></a> |
| <span class="sourceLineNo">123</span> return future;<a name="line.123"></a> |
| <span class="sourceLineNo">124</span> }<a name="line.124"></a> |
| <span class="sourceLineNo">125</span><a name="line.125"></a> |
| <span class="sourceLineNo">126</span> // initialize acceptor session<a name="line.126"></a> |
| <span class="sourceLineNo">127</span> VmPipeSession remoteSession = localSession.getRemoteSession();<a name="line.127"></a> |
| <span class="sourceLineNo">128</span> ((VmPipeAcceptor) remoteSession.getService()).doFinishSessionInitialization(remoteSession, null);<a name="line.128"></a> |
| <span class="sourceLineNo">129</span> try {<a name="line.129"></a> |
| <span class="sourceLineNo">130</span> IoFilterChain filterChain = remoteSession.getFilterChain();<a name="line.130"></a> |
| <span class="sourceLineNo">131</span> entry.getAcceptor().getFilterChainBuilder().buildFilterChain(filterChain);<a name="line.131"></a> |
| <span class="sourceLineNo">132</span><a name="line.132"></a> |
| <span class="sourceLineNo">133</span> // The following sentences don't throw any exceptions.<a name="line.133"></a> |
| <span class="sourceLineNo">134</span> entry.getListeners().fireSessionCreated(remoteSession);<a name="line.134"></a> |
| <span class="sourceLineNo">135</span> idleChecker.addSession(remoteSession);<a name="line.135"></a> |
| <span class="sourceLineNo">136</span> } catch (Exception e) {<a name="line.136"></a> |
| <span class="sourceLineNo">137</span> ExceptionMonitor.getInstance().exceptionCaught(e);<a name="line.137"></a> |
| <span class="sourceLineNo">138</span> remoteSession.close(true);<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> // Start chains, and then allow and messages read/written to be processed. This is to ensure that<a name="line.141"></a> |
| <span class="sourceLineNo">142</span> // sessionOpened gets received before a messageReceived<a name="line.142"></a> |
| <span class="sourceLineNo">143</span> ((VmPipeFilterChain) localSession.getFilterChain()).start();<a name="line.143"></a> |
| <span class="sourceLineNo">144</span> ((VmPipeFilterChain) remoteSession.getFilterChain()).start();<a name="line.144"></a> |
| <span class="sourceLineNo">145</span><a name="line.145"></a> |
| <span class="sourceLineNo">146</span> return future;<a name="line.146"></a> |
| <span class="sourceLineNo">147</span> }<a name="line.147"></a> |
| <span class="sourceLineNo">148</span><a name="line.148"></a> |
| <span class="sourceLineNo">149</span> /**<a name="line.149"></a> |
| <span class="sourceLineNo">150</span> * {@inheritDoc}<a name="line.150"></a> |
| <span class="sourceLineNo">151</span> */<a name="line.151"></a> |
| <span class="sourceLineNo">152</span> @Override<a name="line.152"></a> |
| <span class="sourceLineNo">153</span> protected void dispose0() throws Exception {<a name="line.153"></a> |
| <span class="sourceLineNo">154</span> // stop the idle checking task<a name="line.154"></a> |
| <span class="sourceLineNo">155</span> idleChecker.getNotifyingTask().cancel();<a name="line.155"></a> |
| <span class="sourceLineNo">156</span> }<a name="line.156"></a> |
| <span class="sourceLineNo">157</span><a name="line.157"></a> |
| <span class="sourceLineNo">158</span> private static final Set<VmPipeAddress> TAKEN_LOCAL_ADDRESSES = new HashSet<VmPipeAddress>();<a name="line.158"></a> |
| <span class="sourceLineNo">159</span><a name="line.159"></a> |
| <span class="sourceLineNo">160</span> private static int nextLocalPort = -1;<a name="line.160"></a> |
| <span class="sourceLineNo">161</span><a name="line.161"></a> |
| <span class="sourceLineNo">162</span> private static final IoFutureListener<IoFuture> LOCAL_ADDRESS_RECLAIMER = new LocalAddressReclaimer();<a name="line.162"></a> |
| <span class="sourceLineNo">163</span><a name="line.163"></a> |
| <span class="sourceLineNo">164</span> private static VmPipeAddress nextLocalAddress() throws IOException {<a name="line.164"></a> |
| <span class="sourceLineNo">165</span> synchronized (TAKEN_LOCAL_ADDRESSES) {<a name="line.165"></a> |
| <span class="sourceLineNo">166</span> if (nextLocalPort >= 0) {<a name="line.166"></a> |
| <span class="sourceLineNo">167</span> nextLocalPort = -1;<a name="line.167"></a> |
| <span class="sourceLineNo">168</span> }<a name="line.168"></a> |
| <span class="sourceLineNo">169</span> for (int i = 0; i < Integer.MAX_VALUE; i++) {<a name="line.169"></a> |
| <span class="sourceLineNo">170</span> VmPipeAddress answer = new VmPipeAddress(nextLocalPort--);<a name="line.170"></a> |
| <span class="sourceLineNo">171</span> if (!TAKEN_LOCAL_ADDRESSES.contains(answer)) {<a name="line.171"></a> |
| <span class="sourceLineNo">172</span> TAKEN_LOCAL_ADDRESSES.add(answer);<a name="line.172"></a> |
| <span class="sourceLineNo">173</span> return answer;<a name="line.173"></a> |
| <span class="sourceLineNo">174</span> }<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><a name="line.177"></a> |
| <span class="sourceLineNo">178</span> throw new IOException("Can't assign a local VM pipe port.");<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 LocalAddressReclaimer implements IoFutureListener<IoFuture> {<a name="line.181"></a> |
| <span class="sourceLineNo">182</span> public void operationComplete(IoFuture future) {<a name="line.182"></a> |
| <span class="sourceLineNo">183</span> synchronized (TAKEN_LOCAL_ADDRESSES) {<a name="line.183"></a> |
| <span class="sourceLineNo">184</span> TAKEN_LOCAL_ADDRESSES.remove(future.getSession().getLocalAddress());<a name="line.184"></a> |
| <span class="sourceLineNo">185</span> }<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> |
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