defaultiofilterchainbuilder.html

MINA+API 关于MINA的API

<a name="277" href="#277">277</a>             <strong class="jxr_keyword">if</strong> (filterType.isAssignableFrom(e.getFilter().getClass())) {
<a name="278" href="#278">278</a>                 entries.remove(i.previousIndex());
<a name="279" href="#279">279</a>                 <strong class="jxr_keyword">return</strong> e.getFilter();
<a name="280" href="#280">280</a>             }
<a name="281" href="#281">281</a>         }
<a name="282" href="#282">282</a> 
<a name="283" href="#283">283</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(<span class="jxr_string">"Filter not found: "</span> + filterType.getName());
<a name="284" href="#284">284</a>     }
<a name="285" href="#285">285</a> 
<a name="286" href="#286">286</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">synchronized</strong> <a href="../../../../org/apache/mina/common/IoFilter.html">IoFilter</a> replace(String name, <a href="../../../../org/apache/mina/common/IoFilter.html">IoFilter</a> newFilter) {
<a name="287" href="#287">287</a>         checkBaseName(name);
<a name="288" href="#288">288</a>         <a href="../../../../org/apache/mina/common/DefaultIoFilterChain.html">EntryImpl</a> e = (EntryImpl) get(name);
<a name="289" href="#289">289</a>         <a href="../../../../org/apache/mina/common/IoFilter.html">IoFilter</a> oldFilter = e.getFilter();
<a name="290" href="#290">290</a>         e.setFilter(newFilter);
<a name="291" href="#291">291</a>         <strong class="jxr_keyword">return</strong> oldFilter;
<a name="292" href="#292">292</a>     }
<a name="293" href="#293">293</a> 
<a name="294" href="#294">294</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">synchronized</strong> <strong class="jxr_keyword">void</strong> replace(<a href="../../../../org/apache/mina/common/IoFilter.html">IoFilter</a> oldFilter, <a href="../../../../org/apache/mina/common/IoFilter.html">IoFilter</a> newFilter) {
<a name="295" href="#295">295</a>         <strong class="jxr_keyword">for</strong> (Entry e : entries) {
<a name="296" href="#296">296</a>             <strong class="jxr_keyword">if</strong> (e.getFilter() == oldFilter) {
<a name="297" href="#297">297</a>                 ((<a href="../../../../org/apache/mina/common/DefaultIoFilterChain.html">EntryImpl</a>) e).setFilter(newFilter);
<a name="298" href="#298">298</a>                 <strong class="jxr_keyword">return</strong>;
<a name="299" href="#299">299</a>             }
<a name="300" href="#300">300</a>         }
<a name="301" href="#301">301</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(<span class="jxr_string">"Filter not found: "</span>
<a name="302" href="#302">302</a>                 + oldFilter.getClass().getName());
<a name="303" href="#303">303</a>     }
<a name="304" href="#304">304</a> 
<a name="305" href="#305">305</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">synchronized</strong> <strong class="jxr_keyword">void</strong> replace(Class&lt;? <strong class="jxr_keyword">extends</strong> IoFilter&gt; oldFilterType,
<a name="306" href="#306">306</a>             <a href="../../../../org/apache/mina/common/IoFilter.html">IoFilter</a> newFilter) {
<a name="307" href="#307">307</a>         <strong class="jxr_keyword">for</strong> (Entry e : entries) {
<a name="308" href="#308">308</a>             <strong class="jxr_keyword">if</strong> (oldFilterType.isAssignableFrom(e.getFilter().getClass())) {
<a name="309" href="#309">309</a>                 ((<a href="../../../../org/apache/mina/common/DefaultIoFilterChain.html">EntryImpl</a>) e).setFilter(newFilter);
<a name="310" href="#310">310</a>                 <strong class="jxr_keyword">return</strong>;
<a name="311" href="#311">311</a>             }
<a name="312" href="#312">312</a>         }
<a name="313" href="#313">313</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(<span class="jxr_string">"Filter not found: "</span>
<a name="314" href="#314">314</a>                 + oldFilterType.getName());
<a name="315" href="#315">315</a>     }
<a name="316" href="#316">316</a> 
<a name="317" href="#317">317</a>     <em class="jxr_javadoccomment">/**</em>
<a name="318" href="#318">318</a> <em class="jxr_javadoccomment">     * @see IoFilterChain#clear()</em>
<a name="319" href="#319">319</a> <em class="jxr_javadoccomment">     */</em>
<a name="320" href="#320">320</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">synchronized</strong> <strong class="jxr_keyword">void</strong> clear() {
<a name="321" href="#321">321</a>         entries.clear();
<a name="322" href="#322">322</a>     }
<a name="323" href="#323">323</a>     
<a name="324" href="#324">324</a>     <em class="jxr_javadoccomment">/**</em>
<a name="325" href="#325">325</a> <em class="jxr_javadoccomment">     * Clears the current list of filters and adds the specified</em>
<a name="326" href="#326">326</a> <em class="jxr_javadoccomment">     * filter mapping to this builder.  Please note that you must specify</em>
<a name="327" href="#327">327</a> <em class="jxr_javadoccomment">     * a {@link Map} implementation that iterates the filter mapping in the</em>
<a name="328" href="#328">328</a> <em class="jxr_javadoccomment">     * order of insertion such as {@link LinkedHashMap}.  Otherwise, it will</em>
<a name="329" href="#329">329</a> <em class="jxr_javadoccomment">     * throw an {@link IllegalArgumentException}.</em>
<a name="330" href="#330">330</a> <em class="jxr_javadoccomment">     */</em>
<a name="331" href="#331">331</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setFilters(Map&lt;String, ? <strong class="jxr_keyword">extends</strong> IoFilter&gt; filters) {
<a name="332" href="#332">332</a>         <strong class="jxr_keyword">if</strong> (filters == <strong class="jxr_keyword">null</strong>) {
<a name="333" href="#333">333</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> NullPointerException(<span class="jxr_string">"filters"</span>);
<a name="334" href="#334">334</a>         }
<a name="335" href="#335">335</a>         
<a name="336" href="#336">336</a>         <strong class="jxr_keyword">if</strong> (!isOrderedMap(filters)) {
<a name="337" href="#337">337</a>             <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(
<a name="338" href="#338">338</a>                     <span class="jxr_string">"filters is not an ordered map. Please try "</span> + 
<a name="339" href="#339">339</a>                     LinkedHashMap.<strong class="jxr_keyword">class</strong>.getName() + <span class="jxr_string">"."</span>);
<a name="340" href="#340">340</a>         }
<a name="341" href="#341">341</a> 
<a name="342" href="#342">342</a>         filters = <strong class="jxr_keyword">new</strong> LinkedHashMap&lt;String, IoFilter&gt;(filters);
<a name="343" href="#343">343</a>         <strong class="jxr_keyword">for</strong> (Map.Entry&lt;String, ? <strong class="jxr_keyword">extends</strong> IoFilter&gt; e: filters.entrySet()) {
<a name="344" href="#344">344</a>             <strong class="jxr_keyword">if</strong> (e.getKey() == <strong class="jxr_keyword">null</strong>) {
<a name="345" href="#345">345</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> NullPointerException(<span class="jxr_string">"filters contains a null key."</span>);
<a name="346" href="#346">346</a>             }
<a name="347" href="#347">347</a>             <strong class="jxr_keyword">if</strong> (e.getValue() == <strong class="jxr_keyword">null</strong>) {
<a name="348" href="#348">348</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> NullPointerException(<span class="jxr_string">"filters contains a null value."</span>);
<a name="349" href="#349">349</a>             }
<a name="350" href="#350">350</a>         }
<a name="351" href="#351">351</a>         
<a name="352" href="#352">352</a>         <strong class="jxr_keyword">synchronized</strong> (<strong class="jxr_keyword">this</strong>) {
<a name="353" href="#353">353</a>             clear();
<a name="354" href="#354">354</a>             <strong class="jxr_keyword">for</strong> (Map.Entry&lt;String, ? <strong class="jxr_keyword">extends</strong> IoFilter&gt; e: filters.entrySet()) {
<a name="355" href="#355">355</a>                 addLast(e.getKey(), e.getValue());
<a name="356" href="#356">356</a>             }
<a name="357" href="#357">357</a>         }
<a name="358" href="#358">358</a>     }
<a name="359" href="#359">359</a>     
<a name="360" href="#360">360</a>     @SuppressWarnings(<span class="jxr_string">"unchecked"</span>)
<a name="361" href="#361">361</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> isOrderedMap(Map map) {
<a name="362" href="#362">362</a>         Class&lt;?&gt; mapType = map.getClass();
<a name="363" href="#363">363</a>         <strong class="jxr_keyword">if</strong> (LinkedHashMap.<strong class="jxr_keyword">class</strong>.isAssignableFrom(mapType)) {
<a name="364" href="#364">364</a>             <strong class="jxr_keyword">if</strong> (logger.isDebugEnabled()) {
<a name="365" href="#365">365</a>                 logger.debug(mapType.getSimpleName() + <span class="jxr_string">" is an ordered map."</span>);
<a name="366" href="#366">366</a>             }
<a name="367" href="#367">367</a>             <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
<a name="368" href="#368">368</a>         }
<a name="369" href="#369">369</a>         
<a name="370" href="#370">370</a>         <strong class="jxr_keyword">if</strong> (logger.isDebugEnabled()) {
<a name="371" href="#371">371</a>             logger.debug(mapType.getName() + <span class="jxr_string">" is not a "</span> + LinkedHashMap.<strong class="jxr_keyword">class</strong>.getSimpleName());
<a name="372" href="#372">372</a>         }
<a name="373" href="#373">373</a> 
<a name="374" href="#374">374</a>         <em class="jxr_comment">// Detect Jakarta Commons Collections OrderedMap implementations.</em>
<a name="375" href="#375">375</a>         Class&lt;?&gt; type = mapType;
<a name="376" href="#376">376</a>         <strong class="jxr_keyword">while</strong> (type != <strong class="jxr_keyword">null</strong>) {
<a name="377" href="#377">377</a>             <strong class="jxr_keyword">for</strong> (Class&lt;?&gt; i: type.getInterfaces()) {
<a name="378" href="#378">378</a>                 <strong class="jxr_keyword">if</strong> (i.getName().endsWith(<span class="jxr_string">"OrderedMap"</span>)) {
<a name="379" href="#379">379</a>                     <strong class="jxr_keyword">if</strong> (logger.isDebugEnabled()) {
<a name="380" href="#380">380</a>                         logger.debug(
<a name="381" href="#381">381</a>                                 mapType.getSimpleName() +
<a name="382" href="#382">382</a>                                 <span class="jxr_string">" is an ordered map (guessed from that it "</span> +
<a name="383" href="#383">383</a>                                 <span class="jxr_string">" implements OrderedMap interface.)"</span>);
<a name="384" href="#384">384</a>                     }
<a name="385" href="#385">385</a>                     <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
<a name="386" href="#386">386</a>                 }
<a name="387" href="#387">387</a>             }
<a name="388" href="#388">388</a>             type = type.getSuperclass();
<a name="389" href="#389">389</a>         }
<a name="390" href="#390">390</a>         
<a name="391" href="#391">391</a>         <strong class="jxr_keyword">if</strong> (logger.isDebugEnabled()) {
<a name="392" href="#392">392</a>             logger.debug(
<a name="393" href="#393">393</a>                     mapType.getName() +
<a name="394" href="#394">394</a>                     <span class="jxr_string">" doesn't implement OrderedMap interface."</span>);
<a name="395" href="#395">395</a>         }
<a name="396" href="#396">396</a>         
<a name="397" href="#397">397</a>         <em class="jxr_comment">// Last resort: try to create a new instance and test if it maintains</em>
<a name="398" href="#398">398</a>         <em class="jxr_comment">// the insertion order.</em>
<a name="399" href="#399">399</a>         logger.debug(
<a name="400" href="#400">400</a>                 <span class="jxr_string">"Last resort; trying to create a new map instance with a "</span> +
<a name="401" href="#401">401</a>                 <span class="jxr_string">"default constructor and test if insertion order is "</span> +
<a name="402" href="#402">402</a>                 <span class="jxr_string">"maintained."</span>);
<a name="403" href="#403">403</a>         
<a name="404" href="#404">404</a>         Map newMap;
<a name="405" href="#405">405</a>         <strong class="jxr_keyword">try</strong> {
<a name="406" href="#406">406</a>             newMap = (Map) mapType.newInstance();
<a name="407" href="#407">407</a>         } <strong class="jxr_keyword">catch</strong> (Exception e) {
<a name="408" href="#408">408</a>             <strong class="jxr_keyword">if</strong> (logger.isDebugEnabled()) {
<a name="409" href="#409">409</a>                 logger.debug(
<a name="410" href="#410">410</a>                         <span class="jxr_string">"Failed to create a new map instance of '"</span> + 
<a name="411" href="#411">411</a>                         mapType.getName() +<span class="jxr_string">"'."</span>, e);
<a name="412" href="#412">412</a>             }
<a name="413" href="#413">413</a>             <strong class="jxr_keyword">return</strong> false;
<a name="414" href="#414">414</a>         }
<a name="415" href="#415">415</a>         
<a name="416" href="#416">416</a>         Random rand = <strong class="jxr_keyword">new</strong> Random();
<a name="417" href="#417">417</a>         List&lt;String&gt; expectedNames = <strong class="jxr_keyword">new</strong> ArrayList&lt;String&gt;();
<a name="418" href="#418">418</a>         <a href="../../../../org/apache/mina/common/IoFilter.html">IoFilter</a> dummyFilter = <strong class="jxr_keyword">new</strong> <a href="../../../../org/apache/mina/common/IoFilterAdapter.html">IoFilterAdapter</a>();
<a name="419" href="#419">419</a>         <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i &lt; 65536; i ++) {