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MINA+API 关于MINA的API

<a name="237" href="#237">237</a> <em class="jxr_javadoccomment">     */</em>
<a name="238" href="#238">238</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../org/apache/mina/common/IoBuffer.html">IoBuffer</a> wrap(ByteBuffer nioBuffer) {
<a name="239" href="#239">239</a>         <strong class="jxr_keyword">return</strong> allocator.wrap(nioBuffer);
<a name="240" href="#240">240</a>     }
<a name="241" href="#241">241</a> 
<a name="242" href="#242">242</a>     <em class="jxr_javadoccomment">/**</em>
<a name="243" href="#243">243</a> <em class="jxr_javadoccomment">     * Wraps the specified byte array into MINA heap buffer.</em>
<a name="244" href="#244">244</a> <em class="jxr_javadoccomment">     */</em>
<a name="245" href="#245">245</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../org/apache/mina/common/IoBuffer.html">IoBuffer</a> wrap(byte[] byteArray) {
<a name="246" href="#246">246</a>         <strong class="jxr_keyword">return</strong> wrap(ByteBuffer.wrap(byteArray));
<a name="247" href="#247">247</a>     }
<a name="248" href="#248">248</a> 
<a name="249" href="#249">249</a>     <em class="jxr_javadoccomment">/**</em>
<a name="250" href="#250">250</a> <em class="jxr_javadoccomment">     * Wraps the specified byte array into MINA heap buffer.</em>
<a name="251" href="#251">251</a> <em class="jxr_javadoccomment">     */</em>
<a name="252" href="#252">252</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <a href="../../../../org/apache/mina/common/IoBuffer.html">IoBuffer</a> wrap(byte[] byteArray, <strong class="jxr_keyword">int</strong> offset, <strong class="jxr_keyword">int</strong> length) {
<a name="253" href="#253">253</a>         <strong class="jxr_keyword">return</strong> wrap(ByteBuffer.wrap(byteArray, offset, length));
<a name="254" href="#254">254</a>     }
<a name="255" href="#255">255</a> 
<a name="256" href="#256">256</a>     <em class="jxr_javadoccomment">/**</em>
<a name="257" href="#257">257</a> <em class="jxr_javadoccomment">     * Normalizes the specified capacity of the buffer to power of 2,</em>
<a name="258" href="#258">258</a> <em class="jxr_javadoccomment">     * which is often helpful for optimal memory usage and performance. </em>
<a name="259" href="#259">259</a> <em class="jxr_javadoccomment">     * If it is greater than or equal to {@link Integer#MAX_VALUE}, it</em>
<a name="260" href="#260">260</a> <em class="jxr_javadoccomment">     * returns {@link Integer#MAX_VALUE}.  If it is zero, it returns zero.</em>
<a name="261" href="#261">261</a> <em class="jxr_javadoccomment">     */</em>
<a name="262" href="#262">262</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">int</strong> normalizeCapacity(<strong class="jxr_keyword">int</strong> requestedCapacity) {
<a name="263" href="#263">263</a>         <strong class="jxr_keyword">switch</strong> (requestedCapacity) {
<a name="264" href="#264">264</a>         <strong class="jxr_keyword">case</strong> 0:
<a name="265" href="#265">265</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 0:
<a name="266" href="#266">266</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 1:
<a name="267" href="#267">267</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 2:
<a name="268" href="#268">268</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 3:
<a name="269" href="#269">269</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 4:
<a name="270" href="#270">270</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 5:
<a name="271" href="#271">271</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 6:
<a name="272" href="#272">272</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 7:
<a name="273" href="#273">273</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 8:
<a name="274" href="#274">274</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 9:
<a name="275" href="#275">275</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 10:
<a name="276" href="#276">276</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 11:
<a name="277" href="#277">277</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 12:
<a name="278" href="#278">278</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 13:
<a name="279" href="#279">279</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 14:
<a name="280" href="#280">280</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 15:
<a name="281" href="#281">281</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 16:
<a name="282" href="#282">282</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 17:
<a name="283" href="#283">283</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 18:
<a name="284" href="#284">284</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 19:
<a name="285" href="#285">285</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 21:
<a name="286" href="#286">286</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 22:
<a name="287" href="#287">287</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 23:
<a name="288" href="#288">288</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 24:
<a name="289" href="#289">289</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 25:
<a name="290" href="#290">290</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 26:
<a name="291" href="#291">291</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 27:
<a name="292" href="#292">292</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 28:
<a name="293" href="#293">293</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 29:
<a name="294" href="#294">294</a>         <strong class="jxr_keyword">case</strong> 1 &lt;&lt; 30:
<a name="295" href="#295">295</a>         <strong class="jxr_keyword">case</strong> Integer.MAX_VALUE:
<a name="296" href="#296">296</a>             <strong class="jxr_keyword">return</strong> requestedCapacity;
<a name="297" href="#297">297</a>         }
<a name="298" href="#298">298</a> 
<a name="299" href="#299">299</a>         <strong class="jxr_keyword">int</strong> newCapacity = 1;
<a name="300" href="#300">300</a>         <strong class="jxr_keyword">while</strong> (newCapacity &lt; requestedCapacity) {
<a name="301" href="#301">301</a>             newCapacity &lt;&lt;= 1;
<a name="302" href="#302">302</a>             <strong class="jxr_keyword">if</strong> (newCapacity &lt; 0) {
<a name="303" href="#303">303</a>                 <strong class="jxr_keyword">return</strong> Integer.MAX_VALUE;
<a name="304" href="#304">304</a>             }
<a name="305" href="#305">305</a>         }
<a name="306" href="#306">306</a>         <strong class="jxr_keyword">return</strong> newCapacity;
<a name="307" href="#307">307</a>     }
<a name="308" href="#308">308</a>     
<a name="309" href="#309">309</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> Set&lt;String&gt; primitiveTypeNames = <strong class="jxr_keyword">new</strong> HashSet&lt;String&gt;();
<a name="310" href="#310">310</a>     
<a name="311" href="#311">311</a>     <strong class="jxr_keyword">static</strong> {
<a name="312" href="#312">312</a>         primitiveTypeNames.add(<span class="jxr_string">"void"</span>);
<a name="313" href="#313">313</a>         primitiveTypeNames.add(<span class="jxr_string">"boolean"</span>);
<a name="314" href="#314">314</a>         primitiveTypeNames.add(<span class="jxr_string">"byte"</span>);
<a name="315" href="#315">315</a>         primitiveTypeNames.add(<span class="jxr_string">"char"</span>);
<a name="316" href="#316">316</a>         primitiveTypeNames.add(<span class="jxr_string">"short"</span>);
<a name="317" href="#317">317</a>         primitiveTypeNames.add(<span class="jxr_string">"int"</span>);
<a name="318" href="#318">318</a>         primitiveTypeNames.add(<span class="jxr_string">"long"</span>);
<a name="319" href="#319">319</a>         primitiveTypeNames.add(<span class="jxr_string">"float"</span>);
<a name="320" href="#320">320</a>         primitiveTypeNames.add(<span class="jxr_string">"double"</span>);
<a name="321" href="#321">321</a>     }
<a name="322" href="#322">322</a> 
<a name="323" href="#323">323</a>     <em class="jxr_javadoccomment">/**</em>
<a name="324" href="#324">324</a> <em class="jxr_javadoccomment">     * Creates a new instance.  This is an empty constructor.</em>
<a name="325" href="#325">325</a> <em class="jxr_javadoccomment">     */</em>
<a name="326" href="#326">326</a>     <strong class="jxr_keyword">protected</strong> <a href="../../../../org/apache/mina/common/IoBuffer.html">IoBuffer</a>() {
<a name="327" href="#327">327</a>     }
<a name="328" href="#328">328</a> 
<a name="329" href="#329">329</a>     <em class="jxr_javadoccomment">/**</em>
<a name="330" href="#330">330</a> <em class="jxr_javadoccomment">     * Declares this buffer and all its derived buffers are not used anymore</em>
<a name="331" href="#331">331</a> <em class="jxr_javadoccomment">     * so that it can be reused by some {@link IoBufferAllocator} implementations.</em>
<a name="332" href="#332">332</a> <em class="jxr_javadoccomment">     * It is not mandatory to call this method, but you might want to invoke this</em>
<a name="333" href="#333">333</a> <em class="jxr_javadoccomment">     * method for maximum performance. </em>
<a name="334" href="#334">334</a> <em class="jxr_javadoccomment">     */</em>
<a name="335" href="#335">335</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">void</strong> free();
<a name="336" href="#336">336</a> 
<a name="337" href="#337">337</a>     <em class="jxr_javadoccomment">/**</em>
<a name="338" href="#338">338</a> <em class="jxr_javadoccomment">     * Returns the underlying NIO buffer instance.</em>
<a name="339" href="#339">339</a> <em class="jxr_javadoccomment">     */</em>
<a name="340" href="#340">340</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> ByteBuffer buf();
<a name="341" href="#341">341</a> 
<a name="342" href="#342">342</a>     <em class="jxr_javadoccomment">/**</em>
<a name="343" href="#343">343</a> <em class="jxr_javadoccomment">     * @see ByteBuffer#isDirect()</em>
<a name="344" href="#344">344</a> <em class="jxr_javadoccomment">     */</em>
<a name="345" href="#345">345</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">boolean</strong> isDirect();
<a name="346" href="#346">346</a> 
<a name="347" href="#347">347</a>     <em class="jxr_javadoccomment">/**</em>
<a name="348" href="#348">348</a> <em class="jxr_javadoccomment">     * returns &lt;tt&gt;true&lt;/tt&gt; if and only if this buffer is derived from other buffer</em>
<a name="349" href="#349">349</a> <em class="jxr_javadoccomment">     * via {@link #duplicate()}, {@link #slice()} or {@link #asReadOnlyBuffer()}.</em>
<a name="350" href="#350">350</a> <em class="jxr_javadoccomment">     */</em>
<a name="351" href="#351">351</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">boolean</strong> isDerived();
<a name="352" href="#352">352</a> 
<a name="353" href="#353">353</a>     <em class="jxr_javadoccomment">/**</em>
<a name="354" href="#354">354</a> <em class="jxr_javadoccomment">     * @see ByteBuffer#isReadOnly()</em>
<a name="355" href="#355">355</a> <em class="jxr_javadoccomment">     */</em>
<a name="356" href="#356">356</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">boolean</strong> isReadOnly();
<a name="357" href="#357">357</a> 
<a name="358" href="#358">358</a>     <em class="jxr_javadoccomment">/**</em>
<a name="359" href="#359">359</a> <em class="jxr_javadoccomment">     * Returns the minimum capacity of this buffer which is used to determine</em>