expiringmap.html

MINA+API 关于MINA的API

<a name="153" href="#153">153</a>     }
<a name="154" href="#154">154</a> 
<a name="155" href="#155">155</a>     @Override
<a name="156" href="#156">156</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> hashCode() {
<a name="157" href="#157">157</a>         <strong class="jxr_keyword">return</strong> delegate.hashCode();
<a name="158" href="#158">158</a>     }
<a name="159" href="#159">159</a> 
<a name="160" href="#160">160</a>     <strong class="jxr_keyword">public</strong> Set&lt;K&gt; keySet() {
<a name="161" href="#161">161</a>         <strong class="jxr_keyword">return</strong> delegate.keySet();
<a name="162" href="#162">162</a>     }
<a name="163" href="#163">163</a> 
<a name="164" href="#164">164</a>     @Override
<a name="165" href="#165">165</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> equals(Object obj) {
<a name="166" href="#166">166</a>         <strong class="jxr_keyword">return</strong> delegate.equals(obj);
<a name="167" href="#167">167</a>     }
<a name="168" href="#168">168</a> 
<a name="169" href="#169">169</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> putAll(Map&lt;? <strong class="jxr_keyword">extends</strong> K, ? <strong class="jxr_keyword">extends</strong> V&gt; inMap) {
<a name="170" href="#170">170</a>         <strong class="jxr_keyword">for</strong> (Entry&lt;? <strong class="jxr_keyword">extends</strong> K, ? <strong class="jxr_keyword">extends</strong> V&gt; e : inMap.entrySet()) {
<a name="171" href="#171">171</a>             <strong class="jxr_keyword">this</strong>.put(e.getKey(), e.getValue());
<a name="172" href="#172">172</a>         }
<a name="173" href="#173">173</a>     }
<a name="174" href="#174">174</a> 
<a name="175" href="#175">175</a>     <strong class="jxr_keyword">public</strong> Collection&lt;V&gt; values() {
<a name="176" href="#176">176</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> UnsupportedOperationException();
<a name="177" href="#177">177</a>     }
<a name="178" href="#178">178</a> 
<a name="179" href="#179">179</a>     <strong class="jxr_keyword">public</strong> Set&lt;Map.Entry&lt;K, V&gt;&gt; entrySet() {
<a name="180" href="#180">180</a>         <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> UnsupportedOperationException();
<a name="181" href="#181">181</a>     }
<a name="182" href="#182">182</a> 
<a name="183" href="#183">183</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addExpirationListener(ExpirationListener&lt;V&gt; listener) {
<a name="184" href="#184">184</a>         expirationListeners.add(listener);
<a name="185" href="#185">185</a>     }
<a name="186" href="#186">186</a> 
<a name="187" href="#187">187</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> removeExpirationListener(
<a name="188" href="#188">188</a>             ExpirationListener&lt;V&gt; listener) {
<a name="189" href="#189">189</a>         expirationListeners.remove(listener);
<a name="190" href="#190">190</a>     }
<a name="191" href="#191">191</a> 
<a name="192" href="#192">192</a>     <strong class="jxr_keyword">public</strong> <a href="../../../../org/apache/mina/util/ExpiringMap.html">Expirer</a> getExpirer() {
<a name="193" href="#193">193</a>         <strong class="jxr_keyword">return</strong> expirer;
<a name="194" href="#194">194</a>     }
<a name="195" href="#195">195</a> 
<a name="196" href="#196">196</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> getExpirationInterval() {
<a name="197" href="#197">197</a>         <strong class="jxr_keyword">return</strong> expirer.getExpirationInterval();
<a name="198" href="#198">198</a>     }
<a name="199" href="#199">199</a> 
<a name="200" href="#200">200</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> getTimeToLive() {
<a name="201" href="#201">201</a>         <strong class="jxr_keyword">return</strong> expirer.getTimeToLive();
<a name="202" href="#202">202</a>     }
<a name="203" href="#203">203</a> 
<a name="204" href="#204">204</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setExpirationInterval(<strong class="jxr_keyword">int</strong> expirationInterval) {
<a name="205" href="#205">205</a>         expirer.setExpirationInterval(expirationInterval);
<a name="206" href="#206">206</a>     }
<a name="207" href="#207">207</a> 
<a name="208" href="#208">208</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setTimeToLive(<strong class="jxr_keyword">int</strong> timeToLive) {
<a name="209" href="#209">209</a>         expirer.setTimeToLive(timeToLive);
<a name="210" href="#210">210</a>     }
<a name="211" href="#211">211</a> 
<a name="212" href="#212">212</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/mina/util/ExpiringMap.html">ExpiringObject</a> {
<a name="213" href="#213">213</a>         <strong class="jxr_keyword">private</strong> K key;
<a name="214" href="#214">214</a> 
<a name="215" href="#215">215</a>         <strong class="jxr_keyword">private</strong> V value;
<a name="216" href="#216">216</a> 
<a name="217" href="#217">217</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">long</strong> lastAccessTime;
<a name="218" href="#218">218</a> 
<a name="219" href="#219">219</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> ReadWriteLock lastAccessTimeLock = <strong class="jxr_keyword">new</strong> ReentrantReadWriteLock();
<a name="220" href="#220">220</a> 
<a name="221" href="#221">221</a>         <a href="../../../../org/apache/mina/util/ExpiringMap.html">ExpiringObject</a>(K key, V value, <strong class="jxr_keyword">long</strong> lastAccessTime) {
<a name="222" href="#222">222</a>             <strong class="jxr_keyword">if</strong> (value == <strong class="jxr_keyword">null</strong>) {
<a name="223" href="#223">223</a>                 <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(
<a name="224" href="#224">224</a>                         <span class="jxr_string">"An expiring object cannot be null."</span>);
<a name="225" href="#225">225</a>             }
<a name="226" href="#226">226</a> 
<a name="227" href="#227">227</a>             <strong class="jxr_keyword">this</strong>.key = key;
<a name="228" href="#228">228</a>             <strong class="jxr_keyword">this</strong>.value = value;
<a name="229" href="#229">229</a>             <strong class="jxr_keyword">this</strong>.lastAccessTime = lastAccessTime;
<a name="230" href="#230">230</a>         }
<a name="231" href="#231">231</a> 
<a name="232" href="#232">232</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">long</strong> getLastAccessTime() {
<a name="233" href="#233">233</a>             lastAccessTimeLock.readLock().lock();
<a name="234" href="#234">234</a> 
<a name="235" href="#235">235</a>             <strong class="jxr_keyword">try</strong> {
<a name="236" href="#236">236</a>                 <strong class="jxr_keyword">return</strong> lastAccessTime;
<a name="237" href="#237">237</a>             } <strong class="jxr_keyword">finally</strong> {
<a name="238" href="#238">238</a>                 lastAccessTimeLock.readLock().unlock();
<a name="239" href="#239">239</a>             }
<a name="240" href="#240">240</a>         }
<a name="241" href="#241">241</a> 
<a name="242" href="#242">242</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setLastAccessTime(<strong class="jxr_keyword">long</strong> lastAccessTime) {
<a name="243" href="#243">243</a>             lastAccessTimeLock.writeLock().lock();
<a name="244" href="#244">244</a> 
<a name="245" href="#245">245</a>             <strong class="jxr_keyword">try</strong> {
<a name="246" href="#246">246</a>                 <strong class="jxr_keyword">this</strong>.lastAccessTime = lastAccessTime;
<a name="247" href="#247">247</a>             } <strong class="jxr_keyword">finally</strong> {
<a name="248" href="#248">248</a>                 lastAccessTimeLock.writeLock().unlock();
<a name="249" href="#249">249</a>             }
<a name="250" href="#250">250</a>         }
<a name="251" href="#251">251</a> 
<a name="252" href="#252">252</a>         <strong class="jxr_keyword">public</strong> K getKey() {
<a name="253" href="#253">253</a>             <strong class="jxr_keyword">return</strong> key;
<a name="254" href="#254">254</a>         }
<a name="255" href="#255">255</a> 
<a name="256" href="#256">256</a>         <strong class="jxr_keyword">public</strong> V getValue() {
<a name="257" href="#257">257</a>             <strong class="jxr_keyword">return</strong> value;
<a name="258" href="#258">258</a>         }
<a name="259" href="#259">259</a> 
<a name="260" href="#260">260</a>         @Override
<a name="261" href="#261">261</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> equals(Object obj) {
<a name="262" href="#262">262</a>             <strong class="jxr_keyword">return</strong> value.equals(obj);
<a name="263" href="#263">263</a>         }
<a name="264" href="#264">264</a> 
<a name="265" href="#265">265</a>         @Override
<a name="266" href="#266">266</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> hashCode() {
<a name="267" href="#267">267</a>             <strong class="jxr_keyword">return</strong> value.hashCode();
<a name="268" href="#268">268</a>         }
<a name="269" href="#269">269</a>     }
<a name="270" href="#270">270</a> 
<a name="271" href="#271">271</a>     <em class="jxr_javadoccomment">/**</em>
<a name="272" href="#272">272</a> <em class="jxr_javadoccomment">     * A Thread that monitors an {@link ExpiringMap} and will remove</em>
<a name="273" href="#273">273</a> <em class="jxr_javadoccomment">     * elements that have passed the threshold.</em>
<a name="274" href="#274">274</a> <em class="jxr_javadoccomment">     *</em>
<a name="275" href="#275">275</a> <em class="jxr_javadoccomment">     * @author &lt;a href="<a href="mailto:[e-mail]" target="alexandria_uri">mailto:[e-mail]</a>"&gt;Apache Directory Project&lt;/a&gt;</em>
<a name="276" href="#276">276</a> <em class="jxr_javadoccomment">     * @version $Rev: 602315 $, $Date: 2007-12-07 21:07:26 -0700 (Fri, 07 Dec 2007) $</em>
<a name="277" href="#277">277</a> <em class="jxr_javadoccomment">     */</em>
<a name="278" href="#278">278</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../org/apache/mina/util/ExpiringMap.html">Expirer</a> implements Runnable {
<a name="279" href="#279">279</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> ReadWriteLock stateLock = <strong class="jxr_keyword">new</strong> ReentrantReadWriteLock();
<a name="280" href="#280">280</a> 
<a name="281" href="#281">281</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">long</strong> timeToLiveMillis;
<a name="282" href="#282">282</a> 
<a name="283" href="#283">283</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">long</strong> expirationIntervalMillis;
<a name="284" href="#284">284</a> 
<a name="285" href="#285">285</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> running = false;
<a name="286" href="#286">286</a> 
<a name="287" href="#287">287</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> Thread expirerThread;
<a name="288" href="#288">288</a> 
<a name="289" href="#289">289</a>         <em class="jxr_javadoccomment">/**</em>
<a name="290" href="#290">290</a> <em class="jxr_javadoccomment">         * Creates a new instance of Expirer.  </em>
<a name="291" href="#291">291</a> <em class="jxr_javadoccomment">         *</em>
<a name="292" href="#292">292</a> <em class="jxr_javadoccomment">         */</em>
<a name="293" href="#293">293</a>         <strong class="jxr_keyword">public</strong> <a href="../../../../org/apache/mina/util/ExpiringMap.html">Expirer</a>() {
<a name="294" href="#294">294</a>             expirerThread = <strong class="jxr_keyword">new</strong> Thread(<strong class="jxr_keyword">this</strong>, <span class="jxr_string">"ExpiringMapExpirer-"</span>
<a name="295" href="#295">295</a>                     + expirerCount++);
<a name="296" href="#296">296</a>             expirerThread.setDaemon(<strong class="jxr_keyword">true</strong>);
<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">public</strong> <strong class="jxr_keyword">void</strong> run() {
<a name="300" href="#300">300</a>             <strong class="jxr_keyword">while</strong> (running) {
<a name="301" href="#301">301</a>                 processExpires();
<a name="302" href="#302">302</a> 
<a name="303" href="#303">303</a>                 <strong class="jxr_keyword">try</strong> {
<a name="304" href="#304">304</a>                     Thread.sleep(expirationIntervalMillis);
<a name="305" href="#305">305</a>                 } <strong class="jxr_keyword">catch</strong> (InterruptedException e) {
<a name="306" href="#306">306</a>                 }
<a name="307" href="#307">307</a>             }
<a name="308" href="#308">308</a>         }
<a name="309" href="#309">309</a> 
<a name="310" href="#310">310</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> processExpires() {
<a name="311" href="#311">311</a>             <strong class="jxr_keyword">long</strong> timeNow = System.currentTimeMillis();
<a name="312" href="#312">312</a> 
<a name="313" href="#313">313</a>             <strong class="jxr_keyword">for</strong> (ExpiringObject o : delegate.values()) {
<a name="314" href="#314">314</a>