testpoolutils.html

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<a name="328" href="#328">328</a>         <em class="comment">// Because this isn't determinist and you can get false failures, try more than once.</em>
<a name="329" href="#329">329</a>         AssertionFailedError afe = <strong>null</strong>;
<a name="330" href="#330">330</a>         <strong>int</strong> triesLeft = 3;
<a name="331" href="#331">331</a>         <strong>do</strong> {
<a name="332" href="#332">332</a>             afe = <strong>null</strong>;
<a name="333" href="#333">333</a>             <strong>try</strong> {
<a name="334" href="#334">334</a>                 <strong>final</strong> List calledMethods = <strong>new</strong> ArrayList();
<a name="335" href="#335">335</a>                 <strong>final</strong> KeyedObjectPool pool = (KeyedObjectPool)createProxy(KeyedObjectPool.<strong>class</strong>, calledMethods);
<a name="336" href="#336">336</a>                 <strong>final</strong> Object key = <strong>new</strong> Object();
<a name="337" href="#337">337</a>                 <strong>final</strong> TimerTask task = PoolUtils.checkMinIdle(pool, key, 1, CHECK_PERIOD); <em class="comment">// checks minIdle immediately</em>
<a name="338" href="#338">338</a> 
<a name="339" href="#339">339</a>                 Thread.sleep(CHECK_SLEEP_PERIOD); <em class="comment">// will check CHECK_COUNT more times.</em>
<a name="340" href="#340">340</a>                 task.cancel();
<a name="341" href="#341">341</a>                 task.toString();
<a name="342" href="#342">342</a> 
<a name="343" href="#343">343</a>                 <strong>final</strong> List expectedMethods = <strong>new</strong> ArrayList();
<a name="344" href="#344">344</a>                 <strong>for</strong> (<strong>int</strong> i=0; i &lt; CHECK_COUNT; i++) {
<a name="345" href="#345">345</a>                     expectedMethods.add(<span class="string">"getNumIdle"</span>);
<a name="346" href="#346">346</a>                     expectedMethods.add(<span class="string">"addObject"</span>);
<a name="347" href="#347">347</a>                 }
<a name="348" href="#348">348</a>                 expectedMethods.add(<span class="string">"toString"</span>);
<a name="349" href="#349">349</a>                 assertEquals(expectedMethods, calledMethods); <em class="comment">// may fail because of the thread scheduler</em>
<a name="350" href="#350">350</a>             } <strong>catch</strong> (AssertionFailedError e) {
<a name="351" href="#351">351</a>                 afe = e;
<a name="352" href="#352">352</a>             }
<a name="353" href="#353">353</a>         } <strong>while</strong> (--triesLeft > 0 &amp;&amp; afe != <strong>null</strong>);
<a name="354" href="#354">354</a>         <strong>if</strong> (afe != <strong>null</strong>) {
<a name="355" href="#355">355</a>             <strong>throw</strong> afe;
<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>     <strong>public</strong> <strong>void</strong> testCheckMinIdleKeyedObjectPoolKeys() throws Exception {
<a name="360" href="#360">360</a>         <strong>try</strong> {
<a name="361" href="#361">361</a>             <strong>final</strong> KeyedObjectPool pool = (KeyedObjectPool)createProxy(KeyedObjectPool.<strong>class</strong>, <strong>null</strong>);
<a name="362" href="#362">362</a>             PoolUtils.checkMinIdle(pool, <strong>null</strong>, 1, 1);
<a name="363" href="#363">363</a>             fail(<span class="string">"PoolUtils.checkMinIdle(KeyedObjectPool,Collection,int,long) must not accept null keys."</span>);
<a name="364" href="#364">364</a>         } <strong>catch</strong> (IllegalArgumentException iae) {
<a name="365" href="#365">365</a>             <em class="comment">// expected</em>
<a name="366" href="#366">366</a>         }
<a name="367" href="#367">367</a> 
<a name="368" href="#368">368</a>         <em class="comment">// Because this isn't determinist and you can get false failures, try more than once.</em>
<a name="369" href="#369">369</a>         AssertionFailedError afe = <strong>null</strong>;
<a name="370" href="#370">370</a>         <strong>int</strong> triesLeft = 3;
<a name="371" href="#371">371</a>         <strong>do</strong> {
<a name="372" href="#372">372</a>             afe = <strong>null</strong>;
<a name="373" href="#373">373</a>             <strong>try</strong> {
<a name="374" href="#374">374</a>                 <strong>final</strong> List calledMethods = <strong>new</strong> ArrayList();
<a name="375" href="#375">375</a>                 <strong>final</strong> KeyedObjectPool pool = (KeyedObjectPool)createProxy(KeyedObjectPool.<strong>class</strong>, calledMethods);
<a name="376" href="#376">376</a>                 <strong>final</strong> Collection keys = <strong>new</strong> ArrayList(2);
<a name="377" href="#377">377</a>                 keys.add(<span class="string">"one"</span>);
<a name="378" href="#378">378</a>                 keys.add(<span class="string">"two"</span>);
<a name="379" href="#379">379</a>                 <strong>final</strong> Map tasks = PoolUtils.checkMinIdle(pool, keys, 1, CHECK_PERIOD); <em class="comment">// checks minIdle immediately</em>
<a name="380" href="#380">380</a> 
<a name="381" href="#381">381</a>                 Thread.sleep(CHECK_SLEEP_PERIOD); <em class="comment">// will check CHECK_COUNT more times.</em>
<a name="382" href="#382">382</a>                 <strong>final</strong> Iterator iter = tasks.values().iterator();
<a name="383" href="#383">383</a>                 <strong>while</strong> (iter.hasNext()) {
<a name="384" href="#384">384</a>                     <strong>final</strong> TimerTask task = (TimerTask)iter.next();
<a name="385" href="#385">385</a>                     task.cancel();
<a name="386" href="#386">386</a>                 }
<a name="387" href="#387">387</a> 
<a name="388" href="#388">388</a>                 <strong>final</strong> List expectedMethods = <strong>new</strong> ArrayList();
<a name="389" href="#389">389</a>                 <strong>for</strong> (<strong>int</strong> i=0; i &lt; CHECK_COUNT * keys.size(); i++) {
<a name="390" href="#390">390</a>                     expectedMethods.add(<span class="string">"getNumIdle"</span>);
<a name="391" href="#391">391</a>                     expectedMethods.add(<span class="string">"addObject"</span>);
<a name="392" href="#392">392</a>                 }
<a name="393" href="#393">393</a>                 assertEquals(expectedMethods, calledMethods); <em class="comment">// may fail because of the thread scheduler</em>
<a name="394" href="#394">394</a>             } <strong>catch</strong> (AssertionFailedError e) {
<a name="395" href="#395">395</a>                 afe = e;
<a name="396" href="#396">396</a>             }
<a name="397" href="#397">397</a>         } <strong>while</strong> (--triesLeft > 0 &amp;&amp; afe != <strong>null</strong>);
<a name="398" href="#398">398</a>         <strong>if</strong> (afe != <strong>null</strong>) {
<a name="399" href="#399">399</a>             <strong>throw</strong> afe;
<a name="400" href="#400">400</a>         }
<a name="401" href="#401">401</a>     }
<a name="402" href="#402">402</a> 
<a name="403" href="#403">403</a>     <strong>public</strong> <strong>void</strong> testPrefillObjectPool() throws Exception {
<a name="404" href="#404">404</a>         <strong>try</strong> {
<a name="405" href="#405">405</a>             PoolUtils.prefill(<strong>null</strong>, 1);
<a name="406" href="#406">406</a>             fail(<span class="string">"PoolUtils.prefill(ObjectPool,int) must not allow null pool."</span>);
<a name="407" href="#407">407</a>         } <strong>catch</strong> (IllegalArgumentException iae) {
<a name="408" href="#408">408</a>             <em class="comment">// expected</em>
<a name="409" href="#409">409</a>         }
<a name="410" href="#410">410</a> 
<a name="411" href="#411">411</a>         <strong>final</strong> List calledMethods = <strong>new</strong> ArrayList();
<a name="412" href="#412">412</a>         <strong>final</strong> ObjectPool pool = (ObjectPool)createProxy(ObjectPool.<strong>class</strong>, calledMethods);
<a name="413" href="#413">413</a> 
<a name="414" href="#414">414</a>         PoolUtils.prefill(pool, 0);
<a name="415" href="#415">415</a>         <strong>final</strong> List expectedMethods = <strong>new</strong> ArrayList();
<a name="416" href="#416">416</a>         assertEquals(expectedMethods, calledMethods);
<a name="417" href="#417">417</a> 
<a name="418" href="#418">418</a>         calledMethods.clear();
<a name="419" href="#419">419</a>         PoolUtils.prefill(pool, 3);
<a name="420" href="#420">420</a>         <strong>for</strong> (<strong>int</strong> i=0; i &lt; 3; i++) {
<a name="421" href="#421">421</a>             expectedMethods.add(<span class="string">"addObject"</span>);
<a name="422" href="#422">422</a>         }
<a name="423" href="#423">423</a>         assertEquals(expectedMethods, calledMethods);
<a name="424" href="#424">424</a>     }
<a name="425" href="#425">425</a> 
<a name="426" href="#426">426</a>     <strong>public</strong> <strong>void</strong> testPrefillKeyedObjectPool() throws Exception {
<a name="427" href="#427">427</a>         <strong>try</strong> {
<a name="428" href="#428">428</a>             PoolUtils.prefill(<strong>null</strong>, <strong>new</strong> Object(), 1);
<a name="429" href="#429">429</a>             fail(<span class="string">"PoolUtils.prefill(KeyedObjectPool,Object,int) must not accept null pool."</span>);
<a name="430" href="#430">430</a>         } <strong>catch</strong> (IllegalArgumentException iae) {
<a name="431" href="#431">431</a>             <em class="comment">// expected</em>
<a name="432" href="#432">432</a>         }
<a name="433" href="#433">433</a>         <strong>try</strong> {
<a name="434" href="#434">434</a>             <strong>final</strong> KeyedObjectPool pool = (KeyedObjectPool)createProxy(KeyedObjectPool.<strong>class</strong>, <strong>null</strong>);
<a name="435" href="#435">435</a>             PoolUtils.prefill(pool, (Object)<strong>null</strong>, 1);
<a name="436" href="#436">436</a>             fail(<span class="string">"PoolUtils.prefill(KeyedObjectPool,Object,int) must not accept null key."</span>);
<a name="437" href="#437">437</a>         } <strong>catch</strong> (IllegalArgumentException iae) {
<a name="438" href="#438">438</a>             <em class="comment">// expected</em>
<a name="439" href="#439">439</a>         }
<a name="440" href="#440">440</a> 
<a name="441" href="#441">441</a>         <strong>final</strong> List calledMethods = <strong>new</strong> ArrayList();
<a name="442" href="#442">442</a>         <strong>final</strong> KeyedObjectPool pool = (KeyedObjectPool)createProxy(KeyedObjectPool.<strong>class</strong>, calledMethods);
<a name="443" href="#443">443</a> 
<a name="444" href="#444">444</a>         PoolUtils.prefill(pool, <strong>new</strong> Object(), 0);
<a name="445" href="#445">445</a>         <strong>final</strong> List expectedMethods = <strong>new</strong> ArrayList();
<a name="446" href="#446">446</a>         assertEquals(expectedMethods, calledMethods);
<a name="447" href="#447">447</a> 
<a name="448" href="#448">448</a>         calledMethods.clear();
<a name="449" href="#449">449</a>         PoolUtils.prefill(pool, <strong>new</strong> Object(), 3);
<a name="450" href="#450">450</a>         <strong>for</strong> (<strong>int</strong> i=0; i &lt; 3; i++) {
<a name="451" href="#451">451</a>             expectedMethods.add(<span class="string">"addObject"</span>);
<a name="452" href="#452">452</a>         }
<a name="453" href="#453">453</a>         assertEquals(expectedMethods, calledMethods);
<a name="454" href="#454">454</a>     }
<a name="455" href="#455">455</a> 
<a name="456" href="#456">456</a>     <strong>public</strong> <strong>void</strong> testPrefillKeyedObjectPoolCollection() throws Exception {
<a name="457" href="#457">457</a>         <strong>try</strong> {
<a name="458" href="#458">458</a>             <strong>final</strong> KeyedObjectPool pool = (KeyedObjectPool)createProxy(KeyedObjectPool.<strong>class</strong>, <strong>null</strong>);
<a name="459" href="#459">459</a>             PoolUtils.prefill(pool, <strong>null</strong>, 1);
<a name="460" href="#460">460</a>             fail(<span class="string">"PoolUtils.prefill(KeyedObjectPool,Collection,int) must not accept null keys."</span>);
<a name="461" href="#461">461</a>         } <strong>catch</strong> (IllegalArgumentException iae) {
<a name="462" href="#462">462</a>             <em class="comment">// expected</em>
<a name="463" href="#463">463</a>         }
<a name="464" href="#464">464</a> 
<a name="465" href="#465">465</a>         <strong>final</strong> List calledMethods = <strong>new</strong> ArrayList();
<a name="466" href="#466">466</a>         <strong>final</strong> KeyedObjectPool pool = (KeyedObjectPool)createProxy(KeyedObjectPool.<strong>class</strong>, calledMethods);
<a name="467" href="#467">467</a> 
<a name="468" href="#468">468</a>         <strong>final</strong> Set keys = <strong>new</strong> HashSet();
<a name="469" href="#469">469</a>         PoolUtils.prefill(pool, keys, 0);
<a name="470" href="#470">470</a>         <strong>final</strong> List expectedMethods = <strong>new</strong> ArrayList();
<a name="471" href="#471">471</a>         assertEquals(expectedMethods, calledMethods);
<a name="472" href="#472">472</a> 
<a name="473" href="#473">473</a>         calledMethods.clear();
<a name="474" href="#474">474</a>         keys.add(<strong>new</strong> Integer(1));
<a name="475" href="#475">475</a>         keys.add(<span class="string">"two"</span>);
<a name="476" href="#476">476</a>         keys.add(<strong>new</strong> Double(3.1415926));
<a name="477" href="#477">477</a>         PoolUtils.prefill(pool, keys, 3);
<a name="478" href="#478">478</a>         <strong>for</strong> (<strong>int</strong> i=0; i &lt; keys.size() * 3; i++) {
<a name="479" href="#479">479</a>             expectedMethods.add(<span class="string">"addObject"</span>);
<a name="480" href="#480">480</a>         }
<a name="481" href="#481">481</a>         assertEquals(expectedMethods, calledMethods);
<a name="482" href="#482">482</a>     }
<a name="483" href="#483">483</a> 
<a name="484" href="#484">484</a>     <strong>public</strong> <strong>void</strong> testSynchronizedPoolObjectPool() throws Exception {
<a name="485" href="#485">485</a>         <strong>try</strong> {
<a name="486" href="#486">486</a>             PoolUtils.synchronizedPool((ObjectPool)<strong>null</strong>);
<a name="487" href="#487">487</a>             fail(<span class="string">"PoolUtils.synchronizedPool(ObjectPool) must not allow a null pool."</span>);
<a name="488" href="#488">488</a>         } <strong>catch</strong>(IllegalArgumentException iae) {
<a name="489" href="#489">489</a>             <em class="comment">// expected</em>
<a name="490" href="#490">490</a>         }
<a name="491" href="#491">491</a> 
<a name="492" href="#492">492</a>         <strong>final</strong> List calledMethods = <strong>new</strong> ArrayList();
<a name="493" href="#493">493</a>         <strong>final</strong> ObjectPool op = (ObjectPool)createProxy(ObjectPool.<strong>class</strong>, calledMethods);
<a name="494" href="#494">494</a> 
<a name="495" href="#495">495</a>         <strong>final</strong> ObjectPool sop = PoolUtils.synchronizedPool(op);