poolutils.html

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<a name="258" href="#258">258</a>     <em>/**<em>*</em></em>
<a name="259" href="#259">259</a> <em>     * Call &lt;code>addObject()&lt;/code> on &lt;code>keyedPool&lt;/code> &lt;code>count&lt;/code> number of times.</em>
<a name="260" href="#260">260</a> <em>     *</em>
<a name="261" href="#261">261</a> <em>     * @param pool the keyedPool to prefill.</em>
<a name="262" href="#262">262</a> <em>     * @param count the number of idle objects to add.</em>
<a name="263" href="#263">263</a> <em>     * @throws Exception when {@link ObjectPool#addObject()} fails.</em>
<a name="264" href="#264">264</a> <em>     * @throws IllegalArgumentException when &lt;code>keyedPool&lt;/code> is &lt;code>null&lt;/code>.</em>
<a name="265" href="#265">265</a> <em>     * @since Pool 1.3</em>
<a name="266" href="#266">266</a> <em>     */</em>
<a name="267" href="#267">267</a>     <strong>public</strong> <strong>static</strong> <strong>void</strong> prefill(<strong>final</strong> <a href="../../../../org/apache/commons/pool/ObjectPool.html">ObjectPool</a> pool, <strong>final</strong> <strong>int</strong> count) throws Exception, IllegalArgumentException {
<a name="268" href="#268">268</a>         <strong>if</strong> (pool == <strong>null</strong>) {
<a name="269" href="#269">269</a>             <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"keyedPool must not be null."</span>);
<a name="270" href="#270">270</a>         }
<a name="271" href="#271">271</a>         <strong>for</strong> (<strong>int</strong> i = 0; i &lt; count; i++) {
<a name="272" href="#272">272</a>             pool.addObject();
<a name="273" href="#273">273</a>         }
<a name="274" href="#274">274</a>     }
<a name="275" href="#275">275</a> 
<a name="276" href="#276">276</a>     <em>/**<em>*</em></em>
<a name="277" href="#277">277</a> <em>     * Call &lt;code>addObject(Object)&lt;/code> on &lt;code>keyedPool&lt;/code> with &lt;code>key&lt;/code> &lt;code>count&lt;/code></em>
<a name="278" href="#278">278</a> <em>     * number of times.</em>
<a name="279" href="#279">279</a> <em>     *</em>
<a name="280" href="#280">280</a> <em>     * @param keyedPool the keyedPool to prefill.</em>
<a name="281" href="#281">281</a> <em>     * @param key the key to add objects for.</em>
<a name="282" href="#282">282</a> <em>     * @param count the number of idle objects to add for &lt;code>key&lt;/code>.</em>
<a name="283" href="#283">283</a> <em>     * @throws Exception when {@link KeyedObjectPool#addObject(Object)} fails.</em>
<a name="284" href="#284">284</a> <em>     * @throws IllegalArgumentException when &lt;code>keyedPool&lt;/code> or &lt;code>key&lt;/code> is &lt;code>null&lt;/code>.</em>
<a name="285" href="#285">285</a> <em>     * @since Pool 1.3</em>
<a name="286" href="#286">286</a> <em>     */</em>
<a name="287" href="#287">287</a>     <strong>public</strong> <strong>static</strong> <strong>void</strong> prefill(<strong>final</strong> <a href="../../../../org/apache/commons/pool/KeyedObjectPool.html">KeyedObjectPool</a> keyedPool, <strong>final</strong> Object key, <strong>final</strong> <strong>int</strong> count) throws Exception, IllegalArgumentException {
<a name="288" href="#288">288</a>         <strong>if</strong> (keyedPool == <strong>null</strong>) {
<a name="289" href="#289">289</a>             <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"keyedPool must not be null."</span>);
<a name="290" href="#290">290</a>         }
<a name="291" href="#291">291</a>         <strong>if</strong> (key == <strong>null</strong>) {
<a name="292" href="#292">292</a>             <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"key must not be null."</span>);
<a name="293" href="#293">293</a>         }
<a name="294" href="#294">294</a>         <strong>for</strong> (<strong>int</strong> i = 0; i &lt; count; i++) {
<a name="295" href="#295">295</a>             keyedPool.addObject(key);
<a name="296" href="#296">296</a>         }
<a name="297" href="#297">297</a>     }
<a name="298" href="#298">298</a> 
<a name="299" href="#299">299</a>     <em>/**<em>*</em></em>
<a name="300" href="#300">300</a> <em>     * Call &lt;code>addObject(Object)&lt;/code> on &lt;code>keyedPool&lt;/code> with each key in &lt;code>keys&lt;/code> for</em>
<a name="301" href="#301">301</a> <em>     * &lt;code>count&lt;/code> number of times. This has the same effect as calling</em>
<a name="302" href="#302">302</a> <em>     * {@link #prefill(KeyedObjectPool, Object, int)} for each key in the &lt;code>keys&lt;/code> collection.</em>
<a name="303" href="#303">303</a> <em>     *</em>
<a name="304" href="#304">304</a> <em>     * @param keyedPool the keyedPool to prefill.</em>
<a name="305" href="#305">305</a> <em>     * @param keys {@link Collection} of keys to add objects for.</em>
<a name="306" href="#306">306</a> <em>     * @param count the number of idle objects to add for each &lt;code>key&lt;/code>.</em>
<a name="307" href="#307">307</a> <em>     * @throws Exception when {@link KeyedObjectPool#addObject(Object)} fails.</em>
<a name="308" href="#308">308</a> <em>     * @throws IllegalArgumentException when &lt;code>keyedPool&lt;/code>, &lt;code>keys&lt;/code>, or</em>
<a name="309" href="#309">309</a> <em>     *      any value in &lt;code>keys&lt;/code> is &lt;code>null&lt;/code>.</em>
<a name="310" href="#310">310</a> <em>     * @see #prefill(KeyedObjectPool, Object, int)</em>
<a name="311" href="#311">311</a> <em>     * @since Pool 1.3</em>
<a name="312" href="#312">312</a> <em>     */</em>
<a name="313" href="#313">313</a>     <strong>public</strong> <strong>static</strong> <strong>void</strong> prefill(<strong>final</strong> <a href="../../../../org/apache/commons/pool/KeyedObjectPool.html">KeyedObjectPool</a> keyedPool, <strong>final</strong> Collection keys, <strong>final</strong> <strong>int</strong> count) throws Exception, IllegalArgumentException {
<a name="314" href="#314">314</a>         <strong>if</strong> (keys == <strong>null</strong>) {
<a name="315" href="#315">315</a>             <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"keys must not be null."</span>);
<a name="316" href="#316">316</a>         }
<a name="317" href="#317">317</a>         <strong>final</strong> Iterator iter = keys.iterator();
<a name="318" href="#318">318</a>         <strong>while</strong> (iter.hasNext()) {
<a name="319" href="#319">319</a>             prefill(keyedPool, iter.next(), count);
<a name="320" href="#320">320</a>         }
<a name="321" href="#321">321</a>     }
<a name="322" href="#322">322</a> 
<a name="323" href="#323">323</a>     <em>/**<em>*</em></em>
<a name="324" href="#324">324</a> <em>     * Returns a synchronized (thread-safe) ObjectPool backed by the specified ObjectPool.</em>
<a name="325" href="#325">325</a> <em>     *</em>
<a name="326" href="#326">326</a> <em>     * @param pool the ObjectPool to be "wrapped" in a synchronized ObjectPool.</em>
<a name="327" href="#327">327</a> <em>     * @return a synchronized view of the specified ObjectPool.</em>
<a name="328" href="#328">328</a> <em>     * @since Pool 1.3</em>
<a name="329" href="#329">329</a> <em>     */</em>
<a name="330" href="#330">330</a>     <strong>public</strong> <strong>static</strong> <a href="../../../../org/apache/commons/pool/ObjectPool.html">ObjectPool</a> synchronizedPool(<strong>final</strong> <a href="../../../../org/apache/commons/pool/ObjectPool.html">ObjectPool</a> pool) {
<a name="331" href="#331">331</a>         <strong>return</strong> <strong>new</strong> SynchronizedObjectPool(pool);
<a name="332" href="#332">332</a>     }
<a name="333" href="#333">333</a> 
<a name="334" href="#334">334</a>     <em>/**<em>*</em></em>
<a name="335" href="#335">335</a> <em>     * Returns a synchronized (thread-safe) KeyedObjectPool backed by the specified KeyedObjectPool.</em>
<a name="336" href="#336">336</a> <em>     * </em>
<a name="337" href="#337">337</a> <em>     * @param keyedPool the KeyedObjectPool to be "wrapped" in a synchronized KeyedObjectPool.</em>
<a name="338" href="#338">338</a> <em>     * @return a synchronized view of the specified KeyedObjectPool.</em>
<a name="339" href="#339">339</a> <em>     * @since Pool 1.3</em>
<a name="340" href="#340">340</a> <em>     */</em>
<a name="341" href="#341">341</a>     <strong>public</strong> <strong>static</strong> <a href="../../../../org/apache/commons/pool/KeyedObjectPool.html">KeyedObjectPool</a> synchronizedPool(<strong>final</strong> <a href="../../../../org/apache/commons/pool/KeyedObjectPool.html">KeyedObjectPool</a> keyedPool) {
<a name="342" href="#342">342</a>         <strong>return</strong> <strong>new</strong> SynchronizedKeyedObjectPool(keyedPool);
<a name="343" href="#343">343</a>     }
<a name="344" href="#344">344</a> 
<a name="345" href="#345">345</a>     <em>/**<em>*</em></em>
<a name="346" href="#346">346</a> <em>     * Returns a synchronized (thread-safe) PoolableObjectFactory backed by the specified PoolableObjectFactory.</em>
<a name="347" href="#347">347</a> <em>     *</em>
<a name="348" href="#348">348</a> <em>     * @param factory the PoolableObjectFactory to be "wrapped" in a synchronized PoolableObjectFactory.</em>
<a name="349" href="#349">349</a> <em>     * @return a synchronized view of the specified PoolableObjectFactory.</em>
<a name="350" href="#350">350</a> <em>     * @since Pool 1.3</em>
<a name="351" href="#351">351</a> <em>     */</em>
<a name="352" href="#352">352</a>     <strong>public</strong> <strong>static</strong> <a href="../../../../org/apache/commons/pool/PoolableObjectFactory.html">PoolableObjectFactory</a> synchronizedPoolableFactory(<strong>final</strong> <a href="../../../../org/apache/commons/pool/PoolableObjectFactory.html">PoolableObjectFactory</a> factory) {
<a name="353" href="#353">353</a>         <strong>return</strong> <strong>new</strong> SynchronizedPoolableObjectFactory(factory);
<a name="354" href="#354">354</a>     }
<a name="355" href="#355">355</a> 
<a name="356" href="#356">356</a>     <em>/**<em>*</em></em>
<a name="357" href="#357">357</a> <em>     * Returns a synchronized (thread-safe) KeyedPoolableObjectFactory backed by the specified KeyedPoolableObjectFactory.</em>
<a name="358" href="#358">358</a> <em>     *</em>
<a name="359" href="#359">359</a> <em>     * @param keyedFactory the KeyedPoolableObjectFactory to be "wrapped" in a synchronized KeyedPoolableObjectFactory.</em>
<a name="360" href="#360">360</a> <em>     * @return a synchronized view of the specified KeyedPoolableObjectFactory.</em>
<a name="361" href="#361">361</a> <em>     * @since Pool 1.3</em>
<a name="362" href="#362">362</a> <em>     */</em>
<a name="363" href="#363">363</a>     <strong>public</strong> <strong>static</strong> <a href="../../../../org/apache/commons/pool/KeyedPoolableObjectFactory.html">KeyedPoolableObjectFactory</a> synchronizedPoolableFactory(<strong>final</strong> <a href="../../../../org/apache/commons/pool/KeyedPoolableObjectFactory.html">KeyedPoolableObjectFactory</a> keyedFactory) {
<a name="364" href="#364">364</a>         <strong>return</strong> <strong>new</strong> SynchronizedKeyedPoolableObjectFactory(keyedFactory);
<a name="365" href="#365">365</a>     }
<a name="366" href="#366">366</a> 
<a name="367" href="#367">367</a>     <em>/**<em>*</em></em>
<a name="368" href="#368">368</a> <em>     * Get the &lt;code>Timer&lt;/code> for checking keyedPool's idle count. Lazily create the {@link Timer} as needed.</em>
<a name="369" href="#369">369</a> <em>     *</em>
<a name="370" href="#370">370</a> <em>     * @return the {@link Timer} for checking keyedPool's idle count.</em>
<a name="371" href="#371">371</a> <em>     * @since Pool 1.3</em>
<a name="372" href="#372">372</a> <em>     */</em>
<a name="373" href="#373">373</a>     <strong>private</strong> <strong>static</strong> <strong>synchronized</strong> Timer getMinIdleTimer() {
<a name="374" href="#374">374</a>         <strong>if</strong> (MIN_IDLE_TIMER == <strong>null</strong>) {
<a name="375" href="#375">375</a>             MIN_IDLE_TIMER = <strong>new</strong> Timer(<strong>true</strong>);
<a name="376" href="#376">376</a>         }
<a name="377" href="#377">377</a>         <strong>return</strong> MIN_IDLE_TIMER;
<a name="378" href="#378">378</a>     }
<a name="379" href="#379">379</a> 
<a name="380" href="#380">380</a>     <strong>private</strong> <strong>static</strong> <strong>class</strong> PoolableObjectFactoryAdaptor implements <a href="../../../../org/apache/commons/pool/PoolableObjectFactory.html">PoolableObjectFactory</a> {
<a name="381" href="#381">381</a>         <strong>private</strong> <strong>final</strong> Object key;
<a name="382" href="#382">382</a>         <strong>private</strong> <strong>final</strong> <a href="../../../../org/apache/commons/pool/KeyedPoolableObjectFactory.html">KeyedPoolableObjectFactory</a> keyedFactory;
<a name="383" href="#383">383</a> 
<a name="384" href="#384">384</a>         PoolableObjectFactoryAdaptor(<strong>final</strong> <a href="../../../../org/apache/commons/pool/KeyedPoolableObjectFactory.html">KeyedPoolableObjectFactory</a> keyedFactory, <strong>final</strong> Object key) throws IllegalArgumentException {
<a name="385" href="#385">385</a>             <strong>if</strong> (keyedFactory == <strong>null</strong>) {
<a name="386" href="#386">386</a>                 <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"keyedFactory must not be null."</span>);
<a name="387" href="#387">387</a>             }
<a name="388" href="#388">388</a>             <strong>if</strong> (key == <strong>null</strong>) {
<a name="389" href="#389">389</a>                 <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"key must not be null."</span>);
<a name="390" href="#390">390</a>             }