ioservicelistenersupport.html

MINA+API 关于MINA的API

<a name="133" href="#133">133</a>             <strong class="jxr_keyword">return</strong>;
<a name="134" href="#134">134</a>         }
<a name="135" href="#135">135</a> 
<a name="136" href="#136">136</a>         <strong class="jxr_keyword">for</strong> (IoServiceListener l : listeners) {
<a name="137" href="#137">137</a>             l.serviceIdle(service, status);
<a name="138" href="#138">138</a>         }
<a name="139" href="#139">139</a>     }
<a name="140" href="#140">140</a> 
<a name="141" href="#141">141</a> 
<a name="142" href="#142">142</a>     <em class="jxr_javadoccomment">/**</em>
<a name="143" href="#143">143</a> <em class="jxr_javadoccomment">     * Calls {@link IoServiceListener#serviceDeactivated(IoService)}</em>
<a name="144" href="#144">144</a> <em class="jxr_javadoccomment">     * for all registered listeners.</em>
<a name="145" href="#145">145</a> <em class="jxr_javadoccomment">     */</em>
<a name="146" href="#146">146</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> fireServiceDeactivated() {
<a name="147" href="#147">147</a>         <strong class="jxr_keyword">if</strong> (!activated.compareAndSet(<strong class="jxr_keyword">true</strong>, false)) {
<a name="148" href="#148">148</a>             <strong class="jxr_keyword">return</strong>;
<a name="149" href="#149">149</a>         }
<a name="150" href="#150">150</a> 
<a name="151" href="#151">151</a>         <strong class="jxr_keyword">try</strong> {
<a name="152" href="#152">152</a>             <strong class="jxr_keyword">for</strong> (IoServiceListener l : listeners) {
<a name="153" href="#153">153</a>                 l.serviceDeactivated(service);
<a name="154" href="#154">154</a>             }
<a name="155" href="#155">155</a>         } <strong class="jxr_keyword">finally</strong> {
<a name="156" href="#156">156</a>             disconnectSessions();
<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>     <em class="jxr_javadoccomment">/**</em>
<a name="161" href="#161">161</a> <em class="jxr_javadoccomment">     * Calls {@link IoServiceListener#sessionCreated(IoSession)} for all registered listeners.</em>
<a name="162" href="#162">162</a> <em class="jxr_javadoccomment">     */</em>
<a name="163" href="#163">163</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> fireSessionCreated(<a href="../../../../org/apache/mina/common/IoSession.html">IoSession</a> session) {
<a name="164" href="#164">164</a>         <strong class="jxr_keyword">boolean</strong> firstSession = false;
<a name="165" href="#165">165</a>         <strong class="jxr_keyword">if</strong> (session.getService() instanceof IoConnector) {
<a name="166" href="#166">166</a>             <strong class="jxr_keyword">synchronized</strong> (managedSessions) {
<a name="167" href="#167">167</a>                 firstSession = managedSessions.isEmpty();
<a name="168" href="#168">168</a>             }
<a name="169" href="#169">169</a>         }
<a name="170" href="#170">170</a> 
<a name="171" href="#171">171</a>         <em class="jxr_comment">// If already registered, ignore.</em>
<a name="172" href="#172">172</a>         <strong class="jxr_keyword">if</strong> (!managedSessions.add(session)) {
<a name="173" href="#173">173</a>             <strong class="jxr_keyword">return</strong>;
<a name="174" href="#174">174</a>         }
<a name="175" href="#175">175</a>         
<a name="176" href="#176">176</a>         <em class="jxr_comment">// If the first connector session, fire a virtual service activation event.</em>
<a name="177" href="#177">177</a>         <strong class="jxr_keyword">if</strong> (firstSession) {
<a name="178" href="#178">178</a>             fireServiceActivated();
<a name="179" href="#179">179</a>         }
<a name="180" href="#180">180</a> 
<a name="181" href="#181">181</a>         <em class="jxr_comment">// Fire session events.</em>
<a name="182" href="#182">182</a>         session.getFilterChain().fireSessionCreated();
<a name="183" href="#183">183</a>         session.getFilterChain().fireSessionOpened();
<a name="184" href="#184">184</a> 
<a name="185" href="#185">185</a>         <strong class="jxr_keyword">int</strong> managedSessionCount = managedSessions.size();
<a name="186" href="#186">186</a>         <strong class="jxr_keyword">if</strong> (managedSessionCount &gt; largestManagedSessionCount) {
<a name="187" href="#187">187</a>             largestManagedSessionCount = managedSessionCount;
<a name="188" href="#188">188</a>         }
<a name="189" href="#189">189</a>         cumulativeManagedSessionCount ++;
<a name="190" href="#190">190</a> 
<a name="191" href="#191">191</a>         <em class="jxr_comment">// Fire listener events.</em>
<a name="192" href="#192">192</a>         <strong class="jxr_keyword">for</strong> (IoServiceListener l : listeners) {
<a name="193" href="#193">193</a>             l.sessionCreated(session);
<a name="194" href="#194">194</a>         }
<a name="195" href="#195">195</a>     }
<a name="196" href="#196">196</a> 
<a name="197" href="#197">197</a>     <em class="jxr_javadoccomment">/**</em>
<a name="198" href="#198">198</a> <em class="jxr_javadoccomment">     * Calls {@link IoServiceListener#sessionDestroyed(IoSession)} for all registered listeners.</em>
<a name="199" href="#199">199</a> <em class="jxr_javadoccomment">     */</em>
<a name="200" href="#200">200</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> fireSessionDestroyed(<a href="../../../../org/apache/mina/common/IoSession.html">IoSession</a> session) {
<a name="201" href="#201">201</a>         <em class="jxr_comment">// Try to remove the remaining empty session set after removal.</em>
<a name="202" href="#202">202</a>         <strong class="jxr_keyword">if</strong> (!managedSessions.remove(session)) {
<a name="203" href="#203">203</a>             <strong class="jxr_keyword">return</strong>;
<a name="204" href="#204">204</a>         }
<a name="205" href="#205">205</a> 
<a name="206" href="#206">206</a>         <em class="jxr_comment">// Fire session events.</em>
<a name="207" href="#207">207</a>         session.getFilterChain().fireSessionClosed();
<a name="208" href="#208">208</a> 
<a name="209" href="#209">209</a>         <em class="jxr_comment">// Fire listener events.</em>
<a name="210" href="#210">210</a>         <strong class="jxr_keyword">try</strong> {
<a name="211" href="#211">211</a>             <strong class="jxr_keyword">for</strong> (IoServiceListener l : listeners) {
<a name="212" href="#212">212</a>                 l.sessionDestroyed(session);
<a name="213" href="#213">213</a>             }
<a name="214" href="#214">214</a>         } <strong class="jxr_keyword">finally</strong> {
<a name="215" href="#215">215</a>             <em class="jxr_comment">// Fire a virtual service deactivation event for the last session of the connector.</em>
<a name="216" href="#216">216</a>             <strong class="jxr_keyword">if</strong> (session.getService() instanceof IoConnector) {
<a name="217" href="#217">217</a>                 <strong class="jxr_keyword">boolean</strong> lastSession = false;
<a name="218" href="#218">218</a>                 <strong class="jxr_keyword">synchronized</strong> (managedSessions) {
<a name="219" href="#219">219</a>                     lastSession = managedSessions.isEmpty();
<a name="220" href="#220">220</a>                 }
<a name="221" href="#221">221</a>                 <strong class="jxr_keyword">if</strong> (lastSession) {
<a name="222" href="#222">222</a>                     fireServiceDeactivated();
<a name="223" href="#223">223</a>                 }
<a name="224" href="#224">224</a>             }
<a name="225" href="#225">225</a>         }
<a name="226" href="#226">226</a>     }
<a name="227" href="#227">227</a> 
<a name="228" href="#228">228</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> disconnectSessions() {
<a name="229" href="#229">229</a>         <strong class="jxr_keyword">if</strong> (!(service instanceof IoAcceptor)) {
<a name="230" href="#230">230</a>             <strong class="jxr_keyword">return</strong>;
<a name="231" href="#231">231</a>         }
<a name="232" href="#232">232</a> 
<a name="233" href="#233">233</a>         <strong class="jxr_keyword">if</strong> (!((IoAcceptor) service).isCloseOnDeactivation()) {
<a name="234" href="#234">234</a>             <strong class="jxr_keyword">return</strong>;
<a name="235" href="#235">235</a>         }
<a name="236" href="#236">236</a> 
<a name="237" href="#237">237</a>         Object lock = <strong class="jxr_keyword">new</strong> Object();
<a name="238" href="#238">238</a>         IoFutureListener&lt;IoFuture&gt; listener = <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/mina/common/IoServiceListenerSupport.html">LockNotifyingListener</a>(lock);
<a name="239" href="#239">239</a> 
<a name="240" href="#240">240</a>         <strong class="jxr_keyword">for</strong> (IoSession s : managedSessions) {
<a name="241" href="#241">241</a>             s.close().addListener(listener);
<a name="242" href="#242">242</a>         }
<a name="243" href="#243">243</a> 
<a name="244" href="#244">244</a>         <strong class="jxr_keyword">try</strong> {
<a name="245" href="#245">245</a>             <strong class="jxr_keyword">synchronized</strong> (lock) {
<a name="246" href="#246">246</a>                 <strong class="jxr_keyword">while</strong> (!managedSessions.isEmpty()) {
<a name="247" href="#247">247</a>                     lock.wait(500);
<a name="248" href="#248">248</a>                 }
<a name="249" href="#249">249</a>             }
<a name="250" href="#250">250</a>         } <strong class="jxr_keyword">catch</strong> (InterruptedException ie) {
<a name="251" href="#251">251</a>             <em class="jxr_comment">// Ignored</em>
<a name="252" href="#252">252</a>         }
<a name="253" href="#253">253</a>     }
<a name="254" href="#254">254</a> 
<a name="255" href="#255">255</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/mina/common/IoServiceListenerSupport.html">LockNotifyingListener</a> implements IoFutureListener&lt;IoFuture&gt; {
<a name="256" href="#256">256</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> Object lock;
<a name="257" href="#257">257</a> 
<a name="258" href="#258">258</a>         <strong class="jxr_keyword">public</strong> <a href="../../../../org/apache/mina/common/IoServiceListenerSupport.html">LockNotifyingListener</a>(Object lock) {
<a name="259" href="#259">259</a>             <strong class="jxr_keyword">this</strong>.lock = lock;
<a name="260" href="#260">260</a>         }
<a name="261" href="#261">261</a> 
<a name="262" href="#262">262</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> operationComplete(<a href="../../../../org/apache/mina/common/IoFuture.html">IoFuture</a> future) {
<a name="263" href="#263">263</a>             <strong class="jxr_keyword">synchronized</strong> (lock) {
<a name="264" href="#264">264</a>                 lock.notifyAll();
<a name="265" href="#265">265</a>             }
<a name="266" href="#266">266</a>         }
<a name="267" href="#267">267</a>     }
<a name="268" href="#268">268</a> }
</pre>
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