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| <div id="overview"><a href="../../../../../../apidocs/org/apache/mina/io/datagram/DatagramAcceptor.html">View Javadoc</a></div><pre> |
|
|
| <a name="1" href="#1">1</a> <em class="comment">/*</em>
|
| <a name="2" href="#2">2</a> <em class="comment"> * @(#) $Id: DatagramAcceptor.java 327113 2005-10-21 06:59:15Z trustin $</em>
|
| <a name="3" href="#3">3</a> <em class="comment"> *</em>
|
| <a name="4" href="#4">4</a> <em class="comment"> * Copyright 2004 The Apache Software Foundation</em>
|
| <a name="5" href="#5">5</a> <em class="comment"> *</em>
|
| <a name="6" href="#6">6</a> <em class="comment"> * Licensed under the Apache License, Version 2.0 (the "License");</em>
|
| <a name="7" href="#7">7</a> <em class="comment"> * you may not use this file except in compliance with the License.</em>
|
| <a name="8" href="#8">8</a> <em class="comment"> * You may obtain a copy of the License at</em>
|
| <a name="9" href="#9">9</a> <em class="comment"> *</em>
|
| <a name="10" href="#10">10</a> <em class="comment"> * <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
|
| <a name="11" href="#11">11</a> <em class="comment"> *</em>
|
| <a name="12" href="#12">12</a> <em class="comment"> * Unless required by applicable law or agreed to in writing, software</em>
|
| <a name="13" href="#13">13</a> <em class="comment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
|
| <a name="14" href="#14">14</a> <em class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
|
| <a name="15" href="#15">15</a> <em class="comment"> * See the License for the specific language governing permissions and</em>
|
| <a name="16" href="#16">16</a> <em class="comment"> * limitations under the License.</em>
|
| <a name="17" href="#17">17</a> <em class="comment"> *</em>
|
| <a name="18" href="#18">18</a> <em class="comment"> */</em>
|
| <a name="19" href="#19">19</a> <strong>package</strong> <a href="../../../../../org/apache/mina/io/datagram/package-summary.html">org.apache.mina.io.datagram</a>;
|
| <a name="20" href="#20">20</a>
|
| <a name="21" href="#21">21</a> <strong>import</strong> java.io.IOException;
|
| <a name="22" href="#22">22</a> <strong>import</strong> java.net.InetSocketAddress;
|
| <a name="23" href="#23">23</a> <strong>import</strong> java.net.SocketAddress;
|
| <a name="24" href="#24">24</a> <strong>import</strong> java.nio.channels.DatagramChannel;
|
| <a name="25" href="#25">25</a> <strong>import</strong> java.nio.channels.SelectionKey;
|
| <a name="26" href="#26">26</a> <strong>import</strong> java.nio.channels.Selector;
|
| <a name="27" href="#27">27</a> <strong>import</strong> java.util.HashMap;
|
| <a name="28" href="#28">28</a> <strong>import</strong> java.util.Iterator;
|
| <a name="29" href="#29">29</a> <strong>import</strong> java.util.Map;
|
| <a name="30" href="#30">30</a> <strong>import</strong> java.util.Set;
|
| <a name="31" href="#31">31</a>
|
| <a name="32" href="#32">32</a> <strong>import</strong> org.apache.mina.common.ByteBuffer;
|
| <a name="33" href="#33">33</a> <strong>import</strong> org.apache.mina.io.IoAcceptor;
|
| <a name="34" href="#34">34</a> <strong>import</strong> org.apache.mina.io.IoFilterChain;
|
| <a name="35" href="#35">35</a> <strong>import</strong> org.apache.mina.io.IoHandler;
|
| <a name="36" href="#36">36</a> <strong>import</strong> org.apache.mina.io.IoSession;
|
| <a name="37" href="#37">37</a> <strong>import</strong> org.apache.mina.io.IoSessionManagerFilterChain;
|
| <a name="38" href="#38">38</a> <strong>import</strong> org.apache.mina.util.ExceptionUtil;
|
| <a name="39" href="#39">39</a> <strong>import</strong> org.apache.mina.util.Queue;
|
| <a name="40" href="#40">40</a>
|
| <a name="41" href="#41">41</a> <em>/**<em>*</em></em>
|
| <a name="42" href="#42">42</a> <em> * {@link IoAcceptor} for datagram transport (UDP/IP).</em>
|
| <a name="43" href="#43">43</a> <em> * </em>
|
| <a name="44" href="#44">44</a> <em> * @author The Apache Directory Project (dev@directory.apache.org)</em>
|
| <a name="45" href="#45">45</a> <em> * @version $Rev: 327113 $, $Date: 2005-10-21 15:59:15 +0900 $</em>
|
| <a name="46" href="#46">46</a> <em> */</em>
|
| <a name="47" href="#47">47</a> <strong>public</strong> <strong>class</strong> <a href="../../../../../org/apache/mina/io/datagram/DatagramAcceptor.html">DatagramAcceptor</a> <strong>extends</strong> <a href="../../../../../org/apache/mina/io/datagram/DatagramSessionManager.html">DatagramSessionManager</a> implements <a href="../../../../../org/apache/mina/io/IoAcceptor.html">IoAcceptor</a>
|
| <a name="48" href="#48">48</a> {
|
| <a name="49" href="#49">49</a> <strong>private</strong> <strong>static</strong> <strong>volatile</strong> <strong>int</strong> nextId = 0;
|
| <a name="50" href="#50">50</a>
|
| <a name="51" href="#51">51</a> <strong>private</strong> <strong>final</strong> <a href="../../../../../org/apache/mina/io/IoSessionManagerFilterChain.html">IoSessionManagerFilterChain</a> filters =
|
| <a name="52" href="#52">52</a> <strong>new</strong> <a href="../../../../../org/apache/mina/io/datagram/DatagramSessionManagerFilterChain.html">DatagramSessionManagerFilterChain</a>( <strong>this</strong> );
|
| <a name="53" href="#53">53</a>
|
| <a name="54" href="#54">54</a> <strong>private</strong> <strong>final</strong> <strong>int</strong> id = nextId ++ ;
|
| <a name="55" href="#55">55</a>
|
| <a name="56" href="#56">56</a> <strong>private</strong> Selector selector;
|
| <a name="57" href="#57">57</a>
|
| <a name="58" href="#58">58</a> <strong>private</strong> <strong>final</strong> Map channels = <strong>new</strong> HashMap();
|
| <a name="59" href="#59">59</a>
|
| <a name="60" href="#60">60</a> <strong>private</strong> <strong>final</strong> <a href="../../../../../org/apache/mina/util/Queue.html">Queue</a> registerQueue = <strong>new</strong> <a href="../../../../../org/apache/mina/util/Queue.html">Queue</a>();
|
| <a name="61" href="#61">61</a>
|
| <a name="62" href="#62">62</a> <strong>private</strong> <strong>final</strong> <a href="../../../../../org/apache/mina/util/Queue.html">Queue</a> cancelQueue = <strong>new</strong> <a href="../../../../../org/apache/mina/util/Queue.html">Queue</a>();
|
| <a name="63" href="#63">63</a>
|
| <a name="64" href="#64">64</a> <strong>private</strong> <strong>final</strong> <a href="../../../../../org/apache/mina/util/Queue.html">Queue</a> flushingSessions = <strong>new</strong> <a href="../../../../../org/apache/mina/util/Queue.html">Queue</a>();
|
| <a name="65" href="#65">65</a>
|
| <a name="66" href="#66">66</a> <strong>private</strong> Worker worker;
|
| <a name="67" href="#67">67</a>
|
| <a name="68" href="#68">68</a> <em>/**<em>*</em></em>
|
| <a name="69" href="#69">69</a> <em> * Creates a new instance.</em>
|
| <a name="70" href="#70">70</a> <em> */</em>
|
| <a name="71" href="#71">71</a> <strong>public</strong> <a href="../../../../../org/apache/mina/io/datagram/DatagramAcceptor.html">DatagramAcceptor</a>()
|
| <a name="72" href="#72">72</a> {
|
| <a name="73" href="#73">73</a> }
|
| <a name="74" href="#74">74</a>
|
| <a name="75" href="#75">75</a> <strong>public</strong> <strong>void</strong> bind( SocketAddress address, IoHandler handler )
|
| <a name="76" href="#76">76</a> throws IOException
|
| <a name="77" href="#77">77</a> {
|
| <a name="78" href="#78">78</a> <strong>if</strong>( address == <strong>null</strong> )
|
| <a name="79" href="#79">79</a> <strong>throw</strong> <strong>new</strong> NullPointerException( <span class="string">"address"</span> );
|
| <a name="80" href="#80">80</a> <strong>if</strong>( handler == <strong>null</strong> )
|
| <a name="81" href="#81">81</a> <strong>throw</strong> <strong>new</strong> NullPointerException( <span class="string">"handler"</span> );
|
| <a name="82" href="#82">82</a>
|
| <a name="83" href="#83">83</a> <strong>if</strong>( !( address instanceof InetSocketAddress ) )
|
| <a name="84" href="#84">84</a> <strong>throw</strong> <strong>new</strong> IllegalArgumentException( <span class="string">"Unexpected address type: "</span>
|
| <a name="85" href="#85">85</a> + address.getClass() );
|
| <a name="86" href="#86">86</a> <strong>if</strong>( ( ( InetSocketAddress ) address ).getPort() == 0 )
|
| <a name="87" href="#87">87</a> <strong>throw</strong> <strong>new</strong> IllegalArgumentException( <span class="string">"Unsupported port number: 0"</span> );
|
| <a name="88" href="#88">88</a>
|
| <a name="89" href="#89">89</a> RegistrationRequest request = <strong>new</strong> RegistrationRequest( address, handler );
|
| <a name="90" href="#90">90</a> <strong>synchronized</strong>( <strong>this</strong> )
|
| <a name="91" href="#91">91</a> {
|
| <a name="92" href="#92">92</a> <strong>synchronized</strong>( registerQueue )
|
| <a name="93" href="#93">93</a> {
|
| <a name="94" href="#94">94</a> registerQueue.push( request );
|
| <a name="95" href="#95">95</a> }
|
| <a name="96" href="#96">96</a> startupWorker();
|
| <a name="97" href="#97">97</a> }
|
| <a name="98" href="#98">98</a> selector.wakeup();
|
| <a name="99" href="#99">99</a>
|
| <a name="100" href="#100">100</a> <strong>synchronized</strong>( request )
|
| <a name="101" href="#101">101</a> {
|
| <a name="102" href="#102">102</a> <strong>while</strong>( !request.done )
|
| <a name="103" href="#103">103</a> {
|
| <a name="104" href="#104">104</a> <strong>try</strong>
|
| <a name="105" href="#105">105</a> {
|
| <a name="106" href="#106">106</a> request.wait();
|
| <a name="107" href="#107">107</a> }
|
| <a name="108" href="#108">108</a> <strong>catch</strong>( InterruptedException e )
|
| <a name="109" href="#109">109</a> {
|
| <a name="110" href="#110">110</a> }
|
| <a name="111" href="#111">111</a> }
|
| <a name="112" href="#112">112</a> }
|
| <a name="113" href="#113">113</a>
|
| <a name="114" href="#114">114</a> <strong>if</strong>( request.exception != <strong>null</strong> )
|
| <a name="115" href="#115">115</a> {
|
| <a name="116" href="#116">116</a> ExceptionUtil.throwException( request.exception );
|
| <a name="117" href="#117">117</a> }
|
| <a name="118" href="#118">118</a> }
|
| <a name="119" href="#119">119</a>
|
| <a name="120" href="#120">120</a> <strong>public</strong> <strong>void</strong> unbind( SocketAddress address )
|
| <a name="121" href="#121">121</a> {
|
| <a name="122" href="#122">122</a> <strong>if</strong>( address == <strong>null</strong> )
|
| <a name="123" href="#123">123</a> <strong>throw</strong> <strong>new</strong> NullPointerException( <span class="string">"address"</span> );
|
| <a name="124" href="#124">124</a>
|
| <a name="125" href="#125">125</a> CancellationRequest request = <strong>new</strong> CancellationRequest( address );
|
| <a name="126" href="#126">126</a> <strong>synchronized</strong>( <strong>this</strong> )
|
| <a name="127" href="#127">127</a> {
|
| <a name="128" href="#128">128</a> <strong>try</strong>
|
| <a name="129" href="#129">129</a> {
|
| <a name="130" href="#130">130</a> startupWorker();
|
| <a name="131" href="#131">131</a> }
|
| <a name="132" href="#132">132</a> <strong>catch</strong>( IOException e )
|
| <a name="133" href="#133">133</a> {
|
| <a name="134" href="#134">134</a> <em class="comment">// IOException is thrown only when Worker thread is not</em>
|
| <a name="135" href="#135">135</a> <em class="comment">// running and failed to open a selector. We simply throw</em>
|
| <a name="136" href="#136">136</a> <em class="comment">// IllegalArgumentException here because we can simply</em>
|
| <a name="137" href="#137">137</a> <em class="comment">// conclude that nothing is bound to the selector.</em>
|
| <a name="138" href="#138">138</a> <strong>throw</strong> <strong>new</strong> IllegalArgumentException( <span class="string">"Address not bound: "</span> + address );
|
| <a name="139" href="#139">139</a> }
|
| <a name="140" href="#140">140</a>
|
| <a name="141" href="#141">141</a> <strong>synchronized</strong>( cancelQueue )
|
| <a name="142" href="#142">142</a> {
|
| <a name="143" href="#143">143</a> cancelQueue.push( request );
|
| <a name="144" href="#144">144</a> }
|
| <a name="145" href="#145">145</a> }
|
| <a name="146" href="#146">146</a> selector.wakeup();
|
| <a name="147" href="#147">147</a>
|
| <a name="148" href="#148">148</a> <strong>synchronized</strong>( request )
|
| <a name="149" href="#149">149</a> {
|
| <a name="150" href="#150">150</a> <strong>while</strong>( !request.done )
|
| <a name="151" href="#151">151</a> {
|
| <a name="152" href="#152">152</a> <strong>try</strong>
|
| <a name="153" href="#153">153</a> {
|
| <a name="154" href="#154">154</a> request.wait();
|
| <a name="155" href="#155">155</a> }
|
| <a name="156" href="#156">156</a> <strong>catch</strong>( InterruptedException e )
|
| <a name="157" href="#157">157</a> {
|
| <a name="158" href="#158">158</a> }
|
| <a name="159" href="#159">159</a> }
|
| <a name="160" href="#160">160</a> }
|
| <a name="161" href="#161">161</a>
|
| <a name="162" href="#162">162</a> <strong>if</strong>( request.exception != <strong>null</strong> )
|
| <a name="163" href="#163">163</a> {
|
| <a name="164" href="#164">164</a> request.exception.fillInStackTrace();
|
| <a name="165" href="#165">165</a> <strong>throw</strong> request.exception;
|
| <a name="166" href="#166">166</a> }
|
| <a name="167" href="#167">167</a> }
|
| <a name="168" href="#168">168</a>
|
| <a name="169" href="#169">169</a> <strong>public</strong> <a href="../../../../../org/apache/mina/io/IoSession.html">IoSession</a> newSession( SocketAddress remoteAddress, SocketAddress localAddress )
|
| <a name="170" href="#170">170</a> {
|
| <a name="171" href="#171">171</a> <strong>if</strong>( remoteAddress == <strong>null</strong> )
|
| <a name="172" href="#172">172</a> {
|
| <a name="173" href="#173">173</a> <strong>throw</strong> <strong>new</strong> NullPointerException( <span class="string">"remoteAddress"</span> );
|
| <a name="174" href="#174">174</a> }
|
| <a name="175" href="#175">175</a> <strong>if</strong>( localAddress == <strong>null</strong> )
|
| <a name="176" href="#176">176</a> {
|
| <a name="177" href="#177">177</a> <strong>throw</strong> <strong>new</strong> NullPointerException( <span class="string">"localAddress"</span> );
|
| <a name="178" href="#178">178</a> }
|
| <a name="179" href="#179">179</a>
|
| <a name="180" href="#180">180</a> Selector selector = <strong>this</strong>.selector;
|
| <a name="181" href="#181">181</a> DatagramChannel ch = ( DatagramChannel ) channels.get( localAddress );
|
| <a name="182" href="#182">182</a> <strong>if</strong>( selector == <strong>null</strong> || ch == <strong>null</strong> )
|
| <a name="183" href="#183">183</a> {
|
| <a name="184" href="#184">184</a> <strong>throw</strong> <strong>new</strong> IllegalArgumentException( <span class="string">"Unknown localAddress: "</span> + localAddress );
|
| <a name="185" href="#185">185</a> }
|
| <a name="186" href="#186">186</a>
|
| <a name="187" href="#187">187</a> SelectionKey key = ch.keyFor( selector );
|
| <a name="188" href="#188">188</a> <strong>if</strong>( key == <strong>null</strong> )
|
| <a name="189" href="#189">189</a> {
|
| <a name="190" href="#190">190</a> <strong>throw</strong> <strong>new</strong> IllegalArgumentException( <span class="string">"Unknown lodalAddress: "</span> + localAddress );
|
| <a name="191" href="#191">191</a> }
|
| <a name="192" href="#192">192</a>
|
| <a name="193" href="#193">193</a> RegistrationRequest req = ( RegistrationRequest ) key.attachment();
|
| <a name="194" href="#194">194</a> <a href="../../../../../org/apache/mina/io/datagram/DatagramSession.html">DatagramSession</a> s = <strong>new</strong> <a href="../../../../../org/apache/mina/io/datagram/DatagramSession.html">DatagramSession</a>( filters, ch, req.handler );
|
| <a name="195" href="#195">195</a> s.setRemoteAddress( remoteAddress );
|
| <a name="196" href="#196">196</a> s.setSelectionKey( key );
|
| <a name="197" href="#197">197</a>
|
| <a name="198" href="#198">198</a> <strong>try</strong>
|
| <a name="199" href="#199">199</a> {
|
| <a name="200" href="#200">200</a> req.handler.sessionCreated( s );
|
| <a name="201" href="#201">201</a> }
|
| <a name="202" href="#202">202</a> <strong>catch</strong>( Throwable t )
|
| <a name="203" href="#203">203</a> {
|
| <a name="204" href="#204">204</a> exceptionMonitor.exceptionCaught( <strong>this</strong>, t );
|
| <a name="205" href="#205">205</a> }
|
| <a name="206" href="#206">206</a>
|
| <a name="207" href="#207">207</a> <strong>return</strong> s;
|
| <a name="208" href="#208">208</a> }
|
| <a name="209" href="#209">209</a>
|
| <a name="210" href="#210">210</a> <strong>private</strong> <strong>synchronized</strong> <strong>void</strong> startupWorker() throws IOException
|
| <a name="211" href="#211">211</a> {
|
| <a name="212" href="#212">212</a> <strong>if</strong>( worker == <strong>null</strong> )
|
| <a name="213" href="#213">213</a> {
|
| <a name="214" href="#214">214</a> selector = Selector.open();
|
| <a name="215" href="#215">215</a> worker = <strong>new</strong> Worker();
|
| <a name="216" href="#216">216</a> worker.start();
|
| <a name="217" href="#217">217</a> }
|
| <a name="218" href="#218">218</a> }
|
| <a name="219" href="#219">219</a>
|
| <a name="220" href="#220">220</a> <strong>void</strong> flushSession( DatagramSession session )
|
| <a name="221" href="#221">221</a> {
|
| <a name="222" href="#222">222</a> scheduleFlush( session );
|
| <a name="223" href="#223">223</a> selector.wakeup();
|
| <a name="224" href="#224">224</a> }
|
| <a name="225" href="#225">225</a>
|
| <a name="226" href="#226">226</a> <strong>void</strong> closeSession( DatagramSession session )
|
| <a name="227" href="#227">227</a> {
|
| <a name="228" href="#228">228</a> }
|
| <a name="229" href="#229">229</a>
|
| <a name="230" href="#230">230</a> <strong>private</strong> <strong>void</strong> scheduleFlush( DatagramSession session )
|
| <a name="231" href="#231">231</a> {
|
| <a name="232" href="#232">232</a> <strong>synchronized</strong>( flushingSessions )
|
| <a name="233" href="#233">233</a> {
|
| <a name="234" href="#234">234</a> flushingSessions.push( session );
|
| <a name="235" href="#235">235</a> }
|
| <a name="236" href="#236">236</a> }
|
| <a name="237" href="#237">237</a>
|
| <a name="238" href="#238">238</a> <strong>private</strong> <strong>class</strong> Worker <strong>extends</strong> Thread
|
| <a name="239" href="#239">239</a> {
|
| <a name="240" href="#240">240</a> <strong>public</strong> Worker()
|
| <a name="241" href="#241">241</a> {
|
| <a name="242" href="#242">242</a> <strong>super</strong>( <span class="string">"DatagramAcceptor-"</span> + id );
|
| <a name="243" href="#243">243</a> }
|
| <a name="244" href="#244">244</a>
|
| <a name="245" href="#245">245</a> <strong>public</strong> <strong>void</strong> run()
|
| <a name="246" href="#246">246</a> {
|
| <a name="247" href="#247">247</a> <strong>for</strong>( ;; )
|
| <a name="248" href="#248">248</a> {
|
| <a name="249" href="#249">249</a> <strong>try</strong>
|
| <a name="250" href="#250">250</a> {
|
| <a name="251" href="#251">251</a> <strong>int</strong> nKeys = selector.select();
|
| <a name="252" href="#252">252</a>
|
| <a name="253" href="#253">253</a> registerNew();
|
| <a name="254" href="#254">254</a>
|
| <a name="255" href="#255">255</a> <strong>if</strong>( nKeys > 0 )
|
| <a name="256" href="#256">256</a> {
|
| <a name="257" href="#257">257</a> processReadySessions( selector.selectedKeys() );
|
| <a name="258" href="#258">258</a> }
|
| <a name="259" href="#259">259</a>
|
| <a name="260" href="#260">260</a> flushSessions();
|
| <a name="261" href="#261">261</a> cancelKeys();
|
| <a name="262" href="#262">262</a>
|
| <a name="263" href="#263">263</a> <strong>if</strong>( selector.keys().isEmpty() )
|
| <a name="264" href="#264">264</a> {
|
| <a name="265" href="#265">265</a> <strong>synchronized</strong>( DatagramAcceptor.<strong>this</strong> )
|
| <a name="266" href="#266">266</a> {
|
| <a name="267" href="#267">267</a> <strong>if</strong>( selector.keys().isEmpty() &&
|
| <a name="268" href="#268">268</a> registerQueue.isEmpty() &&
|
| <a name="269" href="#269">269</a> cancelQueue.isEmpty() )
|
| <a name="270" href="#270">270</a> {
|
| <a name="271" href="#271">271</a> worker = <strong>null</strong>;
|
| <a name="272" href="#272">272</a> <strong>try</strong>
|
| <a name="273" href="#273">273</a> {
|
| <a name="274" href="#274">274</a> selector.close();
|
| <a name="275" href="#275">275</a> }
|
| <a name="276" href="#276">276</a> <strong>catch</strong>( IOException e )
|
| <a name="277" href="#277">277</a> {
|
| <a name="278" href="#278">278</a> exceptionMonitor.exceptionCaught( DatagramAcceptor.<strong>this</strong>, e );
|
| <a name="279" href="#279">279</a> }
|
| <a name="280" href="#280">280</a> <strong>finally</strong>
|
| <a name="281" href="#281">281</a> {
|
| <a name="282" href="#282">282</a> selector = <strong>null</strong>;
|
| <a name="283" href="#283">283</a> }
|
| <a name="284" href="#284">284</a> <strong>break</strong>;
|
| <a name="285" href="#285">285</a> }
|
| <a name="286" href="#286">286</a> }
|
| <a name="287" href="#287">287</a> }
|
| <a name="288" href="#288">288</a> }
|
| <a name="289" href="#289">289</a> <strong>catch</strong>( IOException e )
|
| <a name="290" href="#290">290</a> {
|
| <a name="291" href="#291">291</a> exceptionMonitor.exceptionCaught( DatagramAcceptor.<strong>this</strong>,
|
| <a name="292" href="#292">292</a> e );
|
| <a name="293" href="#293">293</a>
|
| <a name="294" href="#294">294</a> <strong>try</strong>
|
| <a name="295" href="#295">295</a> {
|
| <a name="296" href="#296">296</a> Thread.sleep( 1000 );
|
| <a name="297" href="#297">297</a> }
|
| <a name="298" href="#298">298</a> <strong>catch</strong>( InterruptedException e1 )
|
| <a name="299" href="#299">299</a> {
|
| <a name="300" href="#300">300</a> }
|
| <a name="301" href="#301">301</a> }
|
| <a name="302" href="#302">302</a> }
|
| <a name="303" href="#303">303</a> }
|
| <a name="304" href="#304">304</a> }
|
| <a name="305" href="#305">305</a>
|
| <a name="306" href="#306">306</a> <strong>private</strong> <strong>void</strong> processReadySessions( Set keys )
|
| <a name="307" href="#307">307</a> {
|
| <a name="308" href="#308">308</a> Iterator it = keys.iterator();
|
| <a name="309" href="#309">309</a> <strong>while</strong>( it.hasNext() )
|
| <a name="310" href="#310">310</a> {
|
| <a name="311" href="#311">311</a> SelectionKey key = ( SelectionKey ) it.next();
|
| <a name="312" href="#312">312</a> it.remove();
|
| <a name="313" href="#313">313</a>
|
| <a name="314" href="#314">314</a> DatagramChannel ch = ( DatagramChannel ) key.channel();
|
| <a name="315" href="#315">315</a>
|
| <a name="316" href="#316">316</a> RegistrationRequest req = ( RegistrationRequest ) key.attachment();
|
| <a name="317" href="#317">317</a> <a href="../../../../../org/apache/mina/io/datagram/DatagramSession.html">DatagramSession</a> session = <strong>new</strong> <a href="../../../../../org/apache/mina/io/datagram/DatagramSession.html">DatagramSession</a>(
|
| <a name="318" href="#318">318</a> filters, ch, req.handler );
|
| <a name="319" href="#319">319</a> session.setSelectionKey( key );
|
| <a name="320" href="#320">320</a>
|
| <a name="321" href="#321">321</a> <strong>try</strong>
|
| <a name="322" href="#322">322</a> {
|
| <a name="323" href="#323">323</a> req.handler.sessionCreated( session );
|
| <a name="324" href="#324">324</a>
|
| <a name="325" href="#325">325</a> <strong>if</strong>( key.isReadable() )
|
| <a name="326" href="#326">326</a> {
|
| <a name="327" href="#327">327</a> readSession( session );
|
| <a name="328" href="#328">328</a> }
|
| <a name="329" href="#329">329</a>
|
| <a name="330" href="#330">330</a> <strong>if</strong>( key.isWritable() )
|
| <a name="331" href="#331">331</a> {
|
| <a name="332" href="#332">332</a> scheduleFlush( session );
|
| <a name="333" href="#333">333</a> }
|
| <a name="334" href="#334">334</a> }
|
| <a name="335" href="#335">335</a> <strong>catch</strong>( Throwable t )
|
| <a name="336" href="#336">336</a> {
|
| <a name="337" href="#337">337</a> exceptionMonitor.exceptionCaught( <strong>this</strong>, t );
|
| <a name="338" href="#338">338</a> }
|
| <a name="339" href="#339">339</a> }
|
| <a name="340" href="#340">340</a> }
|
| <a name="341" href="#341">341</a>
|
| <a name="342" href="#342">342</a> <strong>private</strong> <strong>void</strong> readSession( DatagramSession session )
|
| <a name="343" href="#343">343</a> {
|
| <a name="344" href="#344">344</a>
|
| <a name="345" href="#345">345</a> <a href="../../../../../org/apache/mina/common/ByteBuffer.html">ByteBuffer</a> readBuf = ByteBuffer.allocate( 2048 );
|
| <a name="346" href="#346">346</a> <strong>try</strong>
|
| <a name="347" href="#347">347</a> {
|
| <a name="348" href="#348">348</a> SocketAddress remoteAddress = session.getChannel().receive(
|
| <a name="349" href="#349">349</a> readBuf.buf() );
|
| <a name="350" href="#350">350</a> <strong>if</strong>( remoteAddress != <strong>null</strong> )
|
| <a name="351" href="#351">351</a> {
|
| <a name="352" href="#352">352</a> readBuf.flip();
|
| <a name="353" href="#353">353</a> session.setRemoteAddress( remoteAddress );
|
| <a name="354" href="#354">354</a>
|
| <a name="355" href="#355">355</a> <a href="../../../../../org/apache/mina/common/ByteBuffer.html">ByteBuffer</a> newBuf = ByteBuffer.allocate( readBuf.limit() );
|
| <a name="356" href="#356">356</a> newBuf.put( readBuf );
|
| <a name="357" href="#357">357</a> newBuf.flip();
|
| <a name="358" href="#358">358</a>
|
| <a name="359" href="#359">359</a> session.increaseReadBytes( newBuf.remaining() );
|
| <a name="360" href="#360">360</a> filters.dataRead( session, newBuf );
|
| <a name="361" href="#361">361</a> }
|
| <a name="362" href="#362">362</a> }
|
| <a name="363" href="#363">363</a> <strong>catch</strong>( IOException e )
|
| <a name="364" href="#364">364</a> {
|
| <a name="365" href="#365">365</a> filters.exceptionCaught( session, e );
|
| <a name="366" href="#366">366</a> }
|
| <a name="367" href="#367">367</a> <strong>finally</strong>
|
| <a name="368" href="#368">368</a> {
|
| <a name="369" href="#369">369</a> readBuf.release();
|
| <a name="370" href="#370">370</a> }
|
| <a name="371" href="#371">371</a> }
|
| <a name="372" href="#372">372</a>
|
| <a name="373" href="#373">373</a> <strong>private</strong> <strong>void</strong> flushSessions()
|
| <a name="374" href="#374">374</a> {
|
| <a name="375" href="#375">375</a> <strong>if</strong>( flushingSessions.size() == 0 )
|
| <a name="376" href="#376">376</a> <strong>return</strong>;
|
| <a name="377" href="#377">377</a>
|
| <a name="378" href="#378">378</a> <strong>for</strong>( ;; )
|
| <a name="379" href="#379">379</a> {
|
| <a name="380" href="#380">380</a> <a href="../../../../../org/apache/mina/io/datagram/DatagramSession.html">DatagramSession</a> session;
|
| <a name="381" href="#381">381</a>
|
| <a name="382" href="#382">382</a> <strong>synchronized</strong>( flushingSessions )
|
| <a name="383" href="#383">383</a> {
|
| <a name="384" href="#384">384</a> session = ( DatagramSession ) flushingSessions.pop();
|
| <a name="385" href="#385">385</a> }
|
| <a name="386" href="#386">386</a>
|
| <a name="387" href="#387">387</a> <strong>if</strong>( session == <strong>null</strong> )
|
| <a name="388" href="#388">388</a> <strong>break</strong>;
|
| <a name="389" href="#389">389</a>
|
| <a name="390" href="#390">390</a> <strong>try</strong>
|
| <a name="391" href="#391">391</a> {
|
| <a name="392" href="#392">392</a> flush( session );
|
| <a name="393" href="#393">393</a> }
|
| <a name="394" href="#394">394</a> <strong>catch</strong>( IOException e )
|
| <a name="395" href="#395">395</a> {
|
| <a name="396" href="#396">396</a> session.getManagerFilterChain().exceptionCaught( session, e );
|
| <a name="397" href="#397">397</a> }
|
| <a name="398" href="#398">398</a> }
|
| <a name="399" href="#399">399</a> }
|
| <a name="400" href="#400">400</a>
|
| <a name="401" href="#401">401</a> <strong>private</strong> <strong>void</strong> flush( DatagramSession session ) throws IOException
|
| <a name="402" href="#402">402</a> {
|
| <a name="403" href="#403">403</a> DatagramChannel ch = session.getChannel();
|
| <a name="404" href="#404">404</a>
|
| <a name="405" href="#405">405</a> <a href="../../../../../org/apache/mina/util/Queue.html">Queue</a> writeBufferQueue = session.getWriteBufferQueue();
|
| <a name="406" href="#406">406</a> <a href="../../../../../org/apache/mina/util/Queue.html">Queue</a> writeMarkerQueue = session.getWriteMarkerQueue();
|
| <a name="407" href="#407">407</a>
|
| <a name="408" href="#408">408</a> <a href="../../../../../org/apache/mina/common/ByteBuffer.html">ByteBuffer</a> buf;
|
| <a name="409" href="#409">409</a> Object marker;
|
| <a name="410" href="#410">410</a> <strong>for</strong>( ;; )
|
| <a name="411" href="#411">411</a> {
|
| <a name="412" href="#412">412</a> <strong>synchronized</strong>( writeBufferQueue )
|
| <a name="413" href="#413">413</a> {
|
| <a name="414" href="#414">414</a> buf = ( ByteBuffer ) writeBufferQueue.first();
|
| <a name="415" href="#415">415</a> marker = writeMarkerQueue.first();
|
| <a name="416" href="#416">416</a> }
|
| <a name="417" href="#417">417</a>
|
| <a name="418" href="#418">418</a> <strong>if</strong>( buf == <strong>null</strong> )
|
| <a name="419" href="#419">419</a> <strong>break</strong>;
|
| <a name="420" href="#420">420</a>
|
| <a name="421" href="#421">421</a> <strong>if</strong>( buf.remaining() == 0 )
|
| <a name="422" href="#422">422</a> {
|
| <a name="423" href="#423">423</a> <em class="comment">// pop and fire event</em>
|
| <a name="424" href="#424">424</a> <strong>synchronized</strong>( writeBufferQueue )
|
| <a name="425" href="#425">425</a> {
|
| <a name="426" href="#426">426</a> writeBufferQueue.pop();
|
| <a name="427" href="#427">427</a> writeMarkerQueue.pop();
|
| <a name="428" href="#428">428</a> }
|
| <a name="429" href="#429">429</a>
|
| <a name="430" href="#430">430</a> <strong>try</strong>
|
| <a name="431" href="#431">431</a> {
|
| <a name="432" href="#432">432</a> buf.release();
|
| <a name="433" href="#433">433</a> }
|
| <a name="434" href="#434">434</a> <strong>catch</strong>( IllegalStateException e )
|
| <a name="435" href="#435">435</a> {
|
| <a name="436" href="#436">436</a> session.getManagerFilterChain().exceptionCaught( session, e );
|
| <a name="437" href="#437">437</a> }
|
| <a name="438" href="#438">438</a>
|
| <a name="439" href="#439">439</a> session.increaseWrittenWriteRequests();
|
| <a name="440" href="#440">440</a> session.getManagerFilterChain().dataWritten( session, marker );
|
| <a name="441" href="#441">441</a> <strong>continue</strong>;
|
| <a name="442" href="#442">442</a> }
|
| <a name="443" href="#443">443</a>
|
| <a name="444" href="#444">444</a> <strong>int</strong> writtenBytes = ch
|
| <a name="445" href="#445">445</a> .send( buf.buf(), session.getRemoteAddress() );
|
| <a name="446" href="#446">446</a>
|
| <a name="447" href="#447">447</a> SelectionKey key = session.getSelectionKey();
|
| <a name="448" href="#448">448</a> <strong>if</strong>( writtenBytes == 0 )
|
| <a name="449" href="#449">449</a> {
|
| <a name="450" href="#450">450</a> <em class="comment">// Kernel buffer is full</em>
|
| <a name="451" href="#451">451</a> key.interestOps( key.interestOps() | SelectionKey.OP_WRITE );
|
| <a name="452" href="#452">452</a> }
|
| <a name="453" href="#453">453</a> <strong>else</strong> <strong>if</strong>( writtenBytes > 0 )
|
| <a name="454" href="#454">454</a> {
|
| <a name="455" href="#455">455</a> key.interestOps( key.interestOps()
|
| <a name="456" href="#456">456</a> & ( ~SelectionKey.OP_WRITE ) );
|
| <a name="457" href="#457">457</a>
|
| <a name="458" href="#458">458</a> <em class="comment">// pop and fire event</em>
|
| <a name="459" href="#459">459</a> <strong>synchronized</strong>( writeBufferQueue )
|
| <a name="460" href="#460">460</a> {
|
| <a name="461" href="#461">461</a> writeBufferQueue.pop();
|
| <a name="462" href="#462">462</a> writeMarkerQueue.pop();
|
| <a name="463" href="#463">463</a> }
|
| <a name="464" href="#464">464</a>
|
| <a name="465" href="#465">465</a> session.increaseWrittenBytes( writtenBytes );
|
| <a name="466" href="#466">466</a> session.increaseWrittenWriteRequests();
|
| <a name="467" href="#467">467</a> session.getManagerFilterChain().dataWritten( session, marker );
|
| <a name="468" href="#468">468</a> }
|
| <a name="469" href="#469">469</a> }
|
| <a name="470" href="#470">470</a> }
|
| <a name="471" href="#471">471</a>
|
| <a name="472" href="#472">472</a> <strong>private</strong> <strong>void</strong> registerNew()
|
| <a name="473" href="#473">473</a> {
|
| <a name="474" href="#474">474</a> <strong>if</strong>( registerQueue.isEmpty() )
|
| <a name="475" href="#475">475</a> <strong>return</strong>;
|
| <a name="476" href="#476">476</a>
|
| <a name="477" href="#477">477</a> <strong>for</strong>( ;; )
|
| <a name="478" href="#478">478</a> {
|
| <a name="479" href="#479">479</a> RegistrationRequest req;
|
| <a name="480" href="#480">480</a> <strong>synchronized</strong>( registerQueue )
|
| <a name="481" href="#481">481</a> {
|
| <a name="482" href="#482">482</a> req = ( RegistrationRequest ) registerQueue.pop();
|
| <a name="483" href="#483">483</a> }
|
| <a name="484" href="#484">484</a>
|
| <a name="485" href="#485">485</a> <strong>if</strong>( req == <strong>null</strong> )
|
| <a name="486" href="#486">486</a> <strong>break</strong>;
|
| <a name="487" href="#487">487</a>
|
| <a name="488" href="#488">488</a> DatagramChannel ch = <strong>null</strong>;
|
| <a name="489" href="#489">489</a> <strong>try</strong>
|
| <a name="490" href="#490">490</a> {
|
| <a name="491" href="#491">491</a> ch = DatagramChannel.open();
|
| <a name="492" href="#492">492</a> ch.configureBlocking( false );
|
| <a name="493" href="#493">493</a> ch.socket().bind( req.address );
|
| <a name="494" href="#494">494</a> ch.register( selector, SelectionKey.OP_READ, req );
|
| <a name="495" href="#495">495</a> channels.put( req.address, ch );
|
| <a name="496" href="#496">496</a> }
|
| <a name="497" href="#497">497</a> <strong>catch</strong>( Throwable t )
|
| <a name="498" href="#498">498</a> {
|
| <a name="499" href="#499">499</a> req.exception = t;
|
| <a name="500" href="#500">500</a> }
|
| <a name="501" href="#501">501</a> <strong>finally</strong>
|
| <a name="502" href="#502">502</a> {
|
| <a name="503" href="#503">503</a> <strong>synchronized</strong>( req )
|
| <a name="504" href="#504">504</a> {
|
| <a name="505" href="#505">505</a> req.done = <strong>true</strong>;
|
| <a name="506" href="#506">506</a> req.notify();
|
| <a name="507" href="#507">507</a> }
|
| <a name="508" href="#508">508</a>
|
| <a name="509" href="#509">509</a> <strong>if</strong>( ch != <strong>null</strong> && req.exception != <strong>null</strong> )
|
| <a name="510" href="#510">510</a> {
|
| <a name="511" href="#511">511</a> <strong>try</strong>
|
| <a name="512" href="#512">512</a> {
|
| <a name="513" href="#513">513</a> ch.close();
|
| <a name="514" href="#514">514</a> }
|
| <a name="515" href="#515">515</a> <strong>catch</strong>( Throwable e )
|
| <a name="516" href="#516">516</a> {
|
| <a name="517" href="#517">517</a> exceptionMonitor.exceptionCaught( <strong>this</strong>, e );
|
| <a name="518" href="#518">518</a> }
|
| <a name="519" href="#519">519</a> }
|
| <a name="520" href="#520">520</a> }
|
| <a name="521" href="#521">521</a> }
|
| <a name="522" href="#522">522</a> }
|
| <a name="523" href="#523">523</a>
|
| <a name="524" href="#524">524</a> <strong>private</strong> <strong>void</strong> cancelKeys()
|
| <a name="525" href="#525">525</a> {
|
| <a name="526" href="#526">526</a> <strong>if</strong>( cancelQueue.isEmpty() )
|
| <a name="527" href="#527">527</a> <strong>return</strong>;
|
| <a name="528" href="#528">528</a>
|
| <a name="529" href="#529">529</a> <strong>for</strong>( ;; )
|
| <a name="530" href="#530">530</a> {
|
| <a name="531" href="#531">531</a> CancellationRequest request;
|
| <a name="532" href="#532">532</a> <strong>synchronized</strong>( cancelQueue )
|
| <a name="533" href="#533">533</a> {
|
| <a name="534" href="#534">534</a> request = ( CancellationRequest ) cancelQueue.pop();
|
| <a name="535" href="#535">535</a> }
|
| <a name="536" href="#536">536</a>
|
| <a name="537" href="#537">537</a> <strong>if</strong>( request == <strong>null</strong> )
|
| <a name="538" href="#538">538</a> {
|
| <a name="539" href="#539">539</a> <strong>break</strong>;
|
| <a name="540" href="#540">540</a> }
|
| <a name="541" href="#541">541</a>
|
| <a name="542" href="#542">542</a> DatagramChannel ch = ( DatagramChannel ) channels.remove( request.address );
|
| <a name="543" href="#543">543</a> <em class="comment">// close the channel</em>
|
| <a name="544" href="#544">544</a> <strong>try</strong>
|
| <a name="545" href="#545">545</a> {
|
| <a name="546" href="#546">546</a> <strong>if</strong>( ch == <strong>null</strong> )
|
| <a name="547" href="#547">547</a> {
|
| <a name="548" href="#548">548</a> request.exception = <strong>new</strong> IllegalArgumentException(
|
| <a name="549" href="#549">549</a> <span class="string">"Address not bound: "</span> + request.address );
|
| <a name="550" href="#550">550</a> }
|
| <a name="551" href="#551">551</a> <strong>else</strong>
|
| <a name="552" href="#552">552</a> {
|
| <a name="553" href="#553">553</a> SelectionKey key = ch.keyFor( selector );
|
| <a name="554" href="#554">554</a> key.cancel();
|
| <a name="555" href="#555">555</a> selector.wakeup(); <em class="comment">// wake up again to trigger thread death</em>
|
| <a name="556" href="#556">556</a> ch.close();
|
| <a name="557" href="#557">557</a> }
|
| <a name="558" href="#558">558</a> }
|
| <a name="559" href="#559">559</a> <strong>catch</strong>( Throwable t )
|
| <a name="560" href="#560">560</a> {
|
| <a name="561" href="#561">561</a> exceptionMonitor.exceptionCaught( <strong>this</strong>, t );
|
| <a name="562" href="#562">562</a> }
|
| <a name="563" href="#563">563</a> <strong>finally</strong>
|
| <a name="564" href="#564">564</a> {
|
| <a name="565" href="#565">565</a> <strong>synchronized</strong>( request )
|
| <a name="566" href="#566">566</a> {
|
| <a name="567" href="#567">567</a> request.done = <strong>true</strong>;
|
| <a name="568" href="#568">568</a> request.notify();
|
| <a name="569" href="#569">569</a> }
|
| <a name="570" href="#570">570</a> }
|
| <a name="571" href="#571">571</a> }
|
| <a name="572" href="#572">572</a> }
|
| <a name="573" href="#573">573</a>
|
| <a name="574" href="#574">574</a> <strong>public</strong> <a href="../../../../../org/apache/mina/io/IoFilterChain.html">IoFilterChain</a> getFilterChain()
|
| <a name="575" href="#575">575</a> {
|
| <a name="576" href="#576">576</a> <strong>return</strong> filters;
|
| <a name="577" href="#577">577</a> }
|
| <a name="578" href="#578">578</a>
|
| <a name="579" href="#579">579</a> <strong>private</strong> <strong>static</strong> <strong>class</strong> RegistrationRequest
|
| <a name="580" href="#580">580</a> {
|
| <a name="581" href="#581">581</a> <strong>private</strong> <strong>final</strong> SocketAddress address;
|
| <a name="582" href="#582">582</a>
|
| <a name="583" href="#583">583</a> <strong>private</strong> <strong>final</strong> <a href="../../../../../org/apache/mina/io/IoHandler.html">IoHandler</a> handler;
|
| <a name="584" href="#584">584</a>
|
| <a name="585" href="#585">585</a> <strong>private</strong> Throwable exception;
|
| <a name="586" href="#586">586</a>
|
| <a name="587" href="#587">587</a> <strong>private</strong> <strong>boolean</strong> done;
|
| <a name="588" href="#588">588</a>
|
| <a name="589" href="#589">589</a> <strong>private</strong> RegistrationRequest( SocketAddress address, IoHandler handler )
|
| <a name="590" href="#590">590</a> {
|
| <a name="591" href="#591">591</a> <strong>this</strong>.address = address;
|
| <a name="592" href="#592">592</a> <strong>this</strong>.handler = handler;
|
| <a name="593" href="#593">593</a> }
|
| <a name="594" href="#594">594</a> }
|
| <a name="595" href="#595">595</a>
|
| <a name="596" href="#596">596</a> <strong>private</strong> <strong>static</strong> <strong>class</strong> CancellationRequest
|
| <a name="597" href="#597">597</a> {
|
| <a name="598" href="#598">598</a> <strong>private</strong> <strong>final</strong> SocketAddress address;
|
| <a name="599" href="#599">599</a> <strong>private</strong> <strong>boolean</strong> done;
|
| <a name="600" href="#600">600</a> <strong>private</strong> RuntimeException exception;
|
| <a name="601" href="#601">601</a>
|
| <a name="602" href="#602">602</a> <strong>private</strong> CancellationRequest( SocketAddress address )
|
| <a name="603" href="#603">603</a> {
|
| <a name="604" href="#604">604</a> <strong>this</strong>.address = address;
|
| <a name="605" href="#605">605</a> }
|
| <a name="606" href="#606">606</a> }
|
| <a name="607" href="#607">607</a> }
|
| </pre> |
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