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MINA+API 关于MINA的API

<a name="245" href="#245">245</a>                 getQueue().offer(EXIT_SIGNAL);
<a name="246" href="#246">246</a>             }
<a name="247" href="#247">247</a>         }
<a name="248" href="#248">248</a>     }
<a name="249" href="#249">249</a> 
<a name="250" href="#250">250</a>     @Override
<a name="251" href="#251">251</a>     <strong class="jxr_keyword">public</strong> List&lt;Runnable&gt; shutdownNow() {
<a name="252" href="#252">252</a>         shutdown();
<a name="253" href="#253">253</a>         
<a name="254" href="#254">254</a>         List&lt;Runnable&gt; answer = <strong class="jxr_keyword">new</strong> ArrayList&lt;Runnable&gt;();
<a name="255" href="#255">255</a>         Runnable task;
<a name="256" href="#256">256</a>         <strong class="jxr_keyword">while</strong> ((task = getQueue().poll()) != <strong class="jxr_keyword">null</strong>) {
<a name="257" href="#257">257</a>             <strong class="jxr_keyword">if</strong> (task == EXIT_SIGNAL) {
<a name="258" href="#258">258</a>                 getQueue().offer(EXIT_SIGNAL);
<a name="259" href="#259">259</a>                 Thread.yield(); <em class="jxr_comment">// Let others take the signal.</em>
<a name="260" href="#260">260</a>                 <strong class="jxr_keyword">continue</strong>;
<a name="261" href="#261">261</a>             }
<a name="262" href="#262">262</a>             
<a name="263" href="#263">263</a>             getQueueHandler().polled(<strong class="jxr_keyword">this</strong>, (IoEvent) task);
<a name="264" href="#264">264</a>             answer.add(task);
<a name="265" href="#265">265</a>         }
<a name="266" href="#266">266</a>         
<a name="267" href="#267">267</a>         <strong class="jxr_keyword">return</strong> answer;
<a name="268" href="#268">268</a>     }
<a name="269" href="#269">269</a> 
<a name="270" href="#270">270</a>     @Override
<a name="271" href="#271">271</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> execute(Runnable task) {
<a name="272" href="#272">272</a>         <strong class="jxr_keyword">if</strong> (shutdown) {
<a name="273" href="#273">273</a>             rejectTask(task);
<a name="274" href="#274">274</a>         }
<a name="275" href="#275">275</a> 
<a name="276" href="#276">276</a>         checkTaskType(task);
<a name="277" href="#277">277</a>         
<a name="278" href="#278">278</a>         <a href="../../../../../org/apache/mina/common/IoEvent.html">IoEvent</a> e = (IoEvent) task;
<a name="279" href="#279">279</a>         <strong class="jxr_keyword">boolean</strong> offeredEvent = queueHandler.accept(<strong class="jxr_keyword">this</strong>, e);
<a name="280" href="#280">280</a>         <strong class="jxr_keyword">if</strong> (offeredEvent) {
<a name="281" href="#281">281</a>             getQueue().offer(e);
<a name="282" href="#282">282</a>         }
<a name="283" href="#283">283</a>         
<a name="284" href="#284">284</a>         addWorkerIfNecessary();
<a name="285" href="#285">285</a>         
<a name="286" href="#286">286</a>         <strong class="jxr_keyword">if</strong> (offeredEvent) {
<a name="287" href="#287">287</a>             queueHandler.offered(<strong class="jxr_keyword">this</strong>, e);
<a name="288" href="#288">288</a>         }
<a name="289" href="#289">289</a>     }
<a name="290" href="#290">290</a>     
<a name="291" href="#291">291</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> rejectTask(Runnable task) {
<a name="292" href="#292">292</a>         getRejectedExecutionHandler().rejectedExecution(task, <strong class="jxr_keyword">this</strong>);
<a name="293" href="#293">293</a>     }
<a name="294" href="#294">294</a>     
<a name="295" href="#295">295</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> checkTaskType(Runnable task) {
<a name="296" href="#296">296</a>         <strong class="jxr_keyword">if</strong> (!(task instanceof IoEvent)) {
<a name="297" href="#297">297</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(<span class="jxr_string">"task must be an IoEvent or its subclass."</span>);
<a name="298" href="#298">298</a>         }
<a name="299" href="#299">299</a>     }
<a name="300" href="#300">300</a> 
<a name="301" href="#301">301</a>     @Override
<a name="302" href="#302">302</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> getActiveCount() {
<a name="303" href="#303">303</a>         <strong class="jxr_keyword">synchronized</strong> (workers) {
<a name="304" href="#304">304</a>             <strong class="jxr_keyword">return</strong> workers.size() - idleWorkers.get();
<a name="305" href="#305">305</a>         }
<a name="306" href="#306">306</a>     }
<a name="307" href="#307">307</a> 
<a name="308" href="#308">308</a>     @Override
<a name="309" href="#309">309</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">long</strong> getCompletedTaskCount() {
<a name="310" href="#310">310</a>         <strong class="jxr_keyword">synchronized</strong> (workers) {
<a name="311" href="#311">311</a>             <strong class="jxr_keyword">long</strong> answer = completedTaskCount;
<a name="312" href="#312">312</a>             <strong class="jxr_keyword">for</strong> (Worker w: workers) {
<a name="313" href="#313">313</a>                 answer += w.completedTaskCount;
<a name="314" href="#314">314</a>             }
<a name="315" href="#315">315</a>             
<a name="316" href="#316">316</a>             <strong class="jxr_keyword">return</strong> answer;
<a name="317" href="#317">317</a>         }
<a name="318" href="#318">318</a>     }
<a name="319" href="#319">319</a> 
<a name="320" href="#320">320</a>     @Override
<a name="321" href="#321">321</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> getLargestPoolSize() {
<a name="322" href="#322">322</a>         <strong class="jxr_keyword">return</strong> largestPoolSize;
<a name="323" href="#323">323</a>     }
<a name="324" href="#324">324</a> 
<a name="325" href="#325">325</a>     @Override
<a name="326" href="#326">326</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> getPoolSize() {
<a name="327" href="#327">327</a>         <strong class="jxr_keyword">synchronized</strong> (workers) {
<a name="328" href="#328">328</a>             <strong class="jxr_keyword">return</strong> workers.size();
<a name="329" href="#329">329</a>         }
<a name="330" href="#330">330</a>     }
<a name="331" href="#331">331</a> 
<a name="332" href="#332">332</a>     @Override
<a name="333" href="#333">333</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">long</strong> getTaskCount() {
<a name="334" href="#334">334</a>         <strong class="jxr_keyword">return</strong> getCompletedTaskCount();
<a name="335" href="#335">335</a>     }
<a name="336" href="#336">336</a> 
<a name="337" href="#337">337</a>     @Override
<a name="338" href="#338">338</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> isTerminating() {
<a name="339" href="#339">339</a>         <strong class="jxr_keyword">synchronized</strong> (workers) {
<a name="340" href="#340">340</a>             <strong class="jxr_keyword">return</strong> isShutdown() &amp;&amp; !isTerminated();
<a name="341" href="#341">341</a>         }
<a name="342" href="#342">342</a>     }
<a name="343" href="#343">343</a> 
<a name="344" href="#344">344</a>     @Override
<a name="345" href="#345">345</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> prestartAllCoreThreads() {
<a name="346" href="#346">346</a>         <strong class="jxr_keyword">int</strong> answer = 0;
<a name="347" href="#347">347</a>         <strong class="jxr_keyword">synchronized</strong> (workers) {
<a name="348" href="#348">348</a>             <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = corePoolSize - workers.size() ; i &gt; 0; i --) {
<a name="349" href="#349">349</a>                 addWorker();
<a name="350" href="#350">350</a>                 answer ++;
<a name="351" href="#351">351</a>             }
<a name="352" href="#352">352</a>         }
<a name="353" href="#353">353</a>         <strong class="jxr_keyword">return</strong> answer;
<a name="354" href="#354">354</a>     }
<a name="355" href="#355">355</a> 
<a name="356" href="#356">356</a>     @Override
<a name="357" href="#357">357</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> prestartCoreThread() {
<a name="358" href="#358">358</a>         <strong class="jxr_keyword">synchronized</strong> (workers) {
<a name="359" href="#359">359</a>             <strong class="jxr_keyword">if</strong> (workers.size() &lt; corePoolSize) {
<a name="360" href="#360">360</a>                 addWorker();
<a name="361" href="#361">361</a>                 <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
<a name="362" href="#362">362</a>             } <strong class="jxr_keyword">else</strong> {
<a name="363" href="#363">363</a>                 <strong class="jxr_keyword">return</strong> false;
<a name="364" href="#364">364</a>             }
<a name="365" href="#365">365</a>         }
<a name="366" href="#366">366</a>     }
<a name="367" href="#367">367</a>     
<a name="368" href="#368">368</a>     @Override
<a name="369" href="#369">369</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> purge() {
<a name="370" href="#370">370</a>     }
<a name="371" href="#371">371</a>