abstractpollingioacceptor.html

MINA+API 关于MINA的API

<a name="273" href="#273">273</a>                         processor.dispose();
<a name="274" href="#274">274</a>                     }
<a name="275" href="#275">275</a>                 } <strong class="jxr_keyword">finally</strong> {
<a name="276" href="#276">276</a>                     <strong class="jxr_keyword">try</strong> {
<a name="277" href="#277">277</a>                         destroy();
<a name="278" href="#278">278</a>                     } <strong class="jxr_keyword">catch</strong> (Exception e) {
<a name="279" href="#279">279</a>                         ExceptionMonitor.getInstance().exceptionCaught(e);
<a name="280" href="#280">280</a>                     } <strong class="jxr_keyword">finally</strong> {
<a name="281" href="#281">281</a>                         disposalFuture.setDone();
<a name="282" href="#282">282</a>                         <strong class="jxr_keyword">if</strong> (createdExecutor) {
<a name="283" href="#283">283</a>                             ((ExecutorService) executor).shutdown();
<a name="284" href="#284">284</a>                         }
<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> 
<a name="290" href="#290">290</a>         <em class="jxr_javadoccomment">/**</em>
<a name="291" href="#291">291</a> <em class="jxr_javadoccomment">         * This method will process new sessions for the Worker class.  All</em>
<a name="292" href="#292">292</a> <em class="jxr_javadoccomment">         * keys that have had their status updates as per the Selector.selectedKeys()</em>
<a name="293" href="#293">293</a> <em class="jxr_javadoccomment">         * method will be processed here.  Only keys that are ready to accept</em>
<a name="294" href="#294">294</a> <em class="jxr_javadoccomment">         * connections are handled here.</em>
<a name="295" href="#295">295</a> <em class="jxr_javadoccomment">         * &lt;p/&gt;</em>
<a name="296" href="#296">296</a> <em class="jxr_javadoccomment">         * Session objects are created by making new instances of SocketSessionImpl</em>
<a name="297" href="#297">297</a> <em class="jxr_javadoccomment">         * and passing the session object to the SocketIoProcessor class.</em>
<a name="298" href="#298">298</a> <em class="jxr_javadoccomment">         */</em>
<a name="299" href="#299">299</a>         @SuppressWarnings(<span class="jxr_string">"unchecked"</span>)
<a name="300" href="#300">300</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> processHandles(Iterator&lt;H&gt; handles) <strong class="jxr_keyword">throws</strong> Exception {
<a name="301" href="#301">301</a>             <strong class="jxr_keyword">while</strong> (handles.hasNext()) {
<a name="302" href="#302">302</a>                 H handle = handles.next();
<a name="303" href="#303">303</a>                 handles.remove();
<a name="304" href="#304">304</a> 
<a name="305" href="#305">305</a>                 T session = accept(processor, handle);
<a name="306" href="#306">306</a>                 <strong class="jxr_keyword">if</strong> (session == <strong class="jxr_keyword">null</strong>) {
<a name="307" href="#307">307</a>                     <strong class="jxr_keyword">break</strong>;
<a name="308" href="#308">308</a>                 }
<a name="309" href="#309">309</a>                 
<a name="310" href="#310">310</a>                 finishSessionInitialization(session, <strong class="jxr_keyword">null</strong>, <strong class="jxr_keyword">null</strong>);
<a name="311" href="#311">311</a> 
<a name="312" href="#312">312</a>                 <em class="jxr_comment">// add the session to the SocketIoProcessor</em>
<a name="313" href="#313">313</a>                 session.getProcessor().add(session);
<a name="314" href="#314">314</a>             }
<a name="315" href="#315">315</a>         }
<a name="316" href="#316">316</a>     }
<a name="317" href="#317">317</a> 
<a name="318" href="#318">318</a>     <em class="jxr_javadoccomment">/**</em>
<a name="319" href="#319">319</a> <em class="jxr_javadoccomment">     * Sets up the socket communications.  Sets items such as:</em>
<a name="320" href="#320">320</a> <em class="jxr_javadoccomment">     * &lt;p/&gt;</em>
<a name="321" href="#321">321</a> <em class="jxr_javadoccomment">     * Blocking</em>
<a name="322" href="#322">322</a> <em class="jxr_javadoccomment">     * Reuse address</em>
<a name="323" href="#323">323</a> <em class="jxr_javadoccomment">     * Receive buffer size</em>
<a name="324" href="#324">324</a> <em class="jxr_javadoccomment">     * Bind to listen port</em>
<a name="325" href="#325">325</a> <em class="jxr_javadoccomment">     * Registers OP_ACCEPT for selector</em>
<a name="326" href="#326">326</a> <em class="jxr_javadoccomment">     */</em>
<a name="327" href="#327">327</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> registerHandles() {
<a name="328" href="#328">328</a>         <strong class="jxr_keyword">for</strong> (;;) {
<a name="329" href="#329">329</a>             <a href="../../../../org/apache/mina/common/AbstractIoAcceptor.html">AcceptorOperationFuture</a> future = registerQueue.poll();
<a name="330" href="#330">330</a>             <strong class="jxr_keyword">if</strong> (future == <strong class="jxr_keyword">null</strong>) {
<a name="331" href="#331">331</a>                 <strong class="jxr_keyword">break</strong>;
<a name="332" href="#332">332</a>             }
<a name="333" href="#333">333</a>             
<a name="334" href="#334">334</a>             Map&lt;SocketAddress, H&gt; newHandles = <strong class="jxr_keyword">new</strong> HashMap&lt;SocketAddress, H&gt;();
<a name="335" href="#335">335</a>             List&lt;SocketAddress&gt; localAddresses = future.getLocalAddresses();
<a name="336" href="#336">336</a>             
<a name="337" href="#337">337</a>             <strong class="jxr_keyword">try</strong> {
<a name="338" href="#338">338</a>                 <strong class="jxr_keyword">for</strong> (SocketAddress a: localAddresses) {
<a name="339" href="#339">339</a>                     H handle = open(a);
<a name="340" href="#340">340</a>                     newHandles.put(localAddress(handle), handle);
<a name="341" href="#341">341</a>                 }
<a name="342" href="#342">342</a>                 
<a name="343" href="#343">343</a>                 boundHandles.putAll(newHandles);
<a name="344" href="#344">344</a> 
<a name="345" href="#345">345</a>                 <em class="jxr_comment">// and notify.</em>
<a name="346" href="#346">346</a>                 future.setDone();
<a name="347" href="#347">347</a>                 <strong class="jxr_keyword">return</strong> newHandles.size();
<a name="348" href="#348">348</a>             } <strong class="jxr_keyword">catch</strong> (Exception e) {
<a name="349" href="#349">349</a>                 future.setException(e);
<a name="350" href="#350">350</a>             } <strong class="jxr_keyword">finally</strong> {
<a name="351" href="#351">351</a>                 <em class="jxr_comment">// Roll back if failed to bind all addresses.</em>
<a name="352" href="#352">352</a>                 <strong class="jxr_keyword">if</strong> (future.getException() != <strong class="jxr_keyword">null</strong>) {
<a name="353" href="#353">353</a>                     <strong class="jxr_keyword">for</strong> (H handle: newHandles.values()) {
<a name="354" href="#354">354</a>                         <strong class="jxr_keyword">try</strong> {
<a name="355" href="#355">355</a>                             close(handle);
<a name="356" href="#356">356</a>                         } <strong class="jxr_keyword">catch</strong> (Exception e) {
<a name="357" href="#357">357</a>                             ExceptionMonitor.getInstance().exceptionCaught(e);
<a name="358" href="#358">358</a>                         }
<a name="359" href="#359">359</a>                     }
<a name="360" href="#360">360</a>                     wakeup();
<a name="361" href="#361">361</a>                 }
<a name="362" href="#362">362</a>             }
<a name="363" href="#363">363</a>         }
<a name="364" href="#364">364</a>         
<a name="365" href="#365">365</a>         <strong class="jxr_keyword">return</strong> 0;
<a name="366" href="#366">366</a>     }
<a name="367" href="#367">367</a> 
<a name="368" href="#368">368</a>     <em class="jxr_javadoccomment">/**</em>
<a name="369" href="#369">369</a> <em class="jxr_javadoccomment">     * This method just checks to see if anything has been placed into the</em>
<a name="370" href="#370">370</a> <em class="jxr_javadoccomment">     * cancellation queue.  The only thing that should be in the cancelQueue</em>
<a name="371" href="#371">371</a> <em class="jxr_javadoccomment">     * is CancellationRequest objects and the only place this happens is in</em>
<a name="372" href="#372">372</a> <em class="jxr_javadoccomment">     * the doUnbind() method.</em>
<a name="373" href="#373">373</a> <em class="jxr_javadoccomment">     */</em>
<a name="374" href="#374">374</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> unregisterHandles() {
<a name="375" href="#375">375</a>         <strong class="jxr_keyword">int</strong> cancelledHandles = 0;
<a name="376" href="#376">376</a>         <strong class="jxr_keyword">for</strong> (; ;) {
<a name="377" href="#377">377</a>             <a href="../../../../org/apache/mina/common/AbstractIoAcceptor.html">AcceptorOperationFuture</a> future = cancelQueue.poll();
<a name="378" href="#378">378</a>             <strong class="jxr_keyword">if</strong> (future == <strong class="jxr_keyword">null</strong>) {
<a name="379" href="#379">379</a>                 <strong class="jxr_keyword">break</strong>;
<a name="380" href="#380">380</a>             }
<a name="381" href="#381">381</a>             
<a name="382" href="#382">382</a>             <em class="jxr_comment">// close the channels</em>
<a name="383" href="#383">383</a>             <strong class="jxr_keyword">for</strong> (SocketAddress a: future.getLocalAddresses()) {
<a name="384" href="#384">384</a>                 H handle = boundHandles.remove(a);
<a name="385" href="#385">385</a>                 <strong class="jxr_keyword">if</strong> (handle == <strong class="jxr_keyword">null</strong>) {
<a name="386" href="#386">386</a>                     <strong class="jxr_keyword">continue</strong>;
<a name="387" href="#387">387</a>                 }
<a name="388" href="#388">388</a> 
<a name="389" href="#389">389</a>                 <strong class="jxr_keyword">try</strong> {
<a name="390" href="#390">390</a>                     close(handle);
<a name="391" href="#391">391</a>                     wakeup(); <em class="jxr_comment">// wake up again to trigger thread death</em>
<a name="392" href="#392">392</a>                 } <strong class="jxr_keyword">catch</strong> (Throwable e) {
<a name="393" href="#393">393</a>                     ExceptionMonitor.getInstance().exceptionCaught(e);
<a name="394" href="#394">394</a>                 } <strong class="jxr_keyword">finally</strong> {
<a name="395" href="#395">395</a>                     cancelledHandles ++;
<a name="396" href="#396">396</a>                 }
<a name="397" href="#397">397</a>             }
<a name="398" href="#398">398</a>             
<a name="399" href="#399">399</a>             future.setDone();
<a name="400" href="#400">400</a>         }
<a name="401" href="#401">401</a>         
<a name="402" href="#402">402</a>         <strong class="jxr_keyword">return</strong> cancelledHandles;
<a name="403" href="#403">403</a>     }
<a name="404" href="#404">404</a> 
<a name="405" href="#405">405</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <a href="../../../../org/apache/mina/common/IoSession.html">IoSession</a> newSession(SocketAddress remoteAddress, SocketAddress localAddress) {
<a name="406" href="#406">406</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> UnsupportedOperationException();
<a name="407" href="#407">407</a>     }
<a name="408" href="#408">408</a> }
</pre>
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