testgenericobjectpool.html

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<a name="469" href="#469">469</a>             expected.testOnReturn = <strong>true</strong>;
<a name="470" href="#470">470</a>             expected.testWhileIdle = <strong>true</strong>;
<a name="471" href="#471">471</a>             expected.timeBetweenEvictionRunsMillis = 11L;
<a name="472" href="#472">472</a>             expected.whenExhaustedAction = GenericObjectPool.WHEN_EXHAUSTED_GROW;
<a name="473" href="#473">473</a>             GenericObjectPool pool = <strong>new</strong> GenericObjectPool(<strong>null</strong>,expected.maxActive, expected.whenExhaustedAction, expected.maxWait, expected.maxIdle, expected.minIdle, expected.testOnBorrow, expected.testOnReturn, expected.timeBetweenEvictionRunsMillis, expected.numTestsPerEvictionRun, expected.minEvictableIdleTimeMillis, expected.testWhileIdle);
<a name="474" href="#474">474</a>             assertConfiguration(expected,pool);
<a name="475" href="#475">475</a>         }
<a name="476" href="#476">476</a>     }
<a name="477" href="#477">477</a> 
<a name="478" href="#478">478</a>     <strong>public</strong> <strong>void</strong> testSetConfig() throws Exception {
<a name="479" href="#479">479</a>         GenericObjectPool.Config expected = <strong>new</strong> GenericObjectPool.Config();
<a name="480" href="#480">480</a>         GenericObjectPool pool = <strong>new</strong> GenericObjectPool();
<a name="481" href="#481">481</a>         assertConfiguration(expected,pool);
<a name="482" href="#482">482</a>         expected.maxActive = 2;
<a name="483" href="#483">483</a>         expected.maxIdle = 3;
<a name="484" href="#484">484</a>         expected.maxWait = 5L;
<a name="485" href="#485">485</a>         expected.minEvictableIdleTimeMillis = 7L;
<a name="486" href="#486">486</a>         expected.numTestsPerEvictionRun = 9;
<a name="487" href="#487">487</a>         expected.testOnBorrow = <strong>true</strong>;
<a name="488" href="#488">488</a>         expected.testOnReturn = <strong>true</strong>;
<a name="489" href="#489">489</a>         expected.testWhileIdle = <strong>true</strong>;
<a name="490" href="#490">490</a>         expected.timeBetweenEvictionRunsMillis = 11L;
<a name="491" href="#491">491</a>         expected.whenExhaustedAction = GenericObjectPool.WHEN_EXHAUSTED_GROW;
<a name="492" href="#492">492</a>         pool.setConfig(expected);
<a name="493" href="#493">493</a>         assertConfiguration(expected,pool);
<a name="494" href="#494">494</a>     }
<a name="495" href="#495">495</a> 
<a name="496" href="#496">496</a>     <strong>public</strong> <strong>void</strong> testDebugInfo() throws Exception {
<a name="497" href="#497">497</a>         GenericObjectPool pool = <strong>new</strong> GenericObjectPool(<strong>new</strong> SimpleFactory());
<a name="498" href="#498">498</a>         pool.setMaxIdle(3);
<a name="499" href="#499">499</a>         assertNotNull(pool.debugInfo());
<a name="500" href="#500">500</a>         Object obj = pool.borrowObject();
<a name="501" href="#501">501</a>         assertNotNull(pool.debugInfo());
<a name="502" href="#502">502</a>         pool.returnObject(obj);
<a name="503" href="#503">503</a>         assertNotNull(pool.debugInfo());
<a name="504" href="#504">504</a>     }
<a name="505" href="#505">505</a> 
<a name="506" href="#506">506</a>     <strong>public</strong> <strong>void</strong> testStartAndStopEvictor() throws Exception {
<a name="507" href="#507">507</a>         <em class="comment">// set up pool without evictor</em>
<a name="508" href="#508">508</a>         pool.setMaxIdle(6);
<a name="509" href="#509">509</a>         pool.setMaxActive(6);
<a name="510" href="#510">510</a>         pool.setNumTestsPerEvictionRun(6);
<a name="511" href="#511">511</a>         pool.setMinEvictableIdleTimeMillis(100L);
<a name="512" href="#512">512</a> 
<a name="513" href="#513">513</a>         <strong>for</strong>(<strong>int</strong> j=0;j&lt;2;j++) {
<a name="514" href="#514">514</a>             <em class="comment">// populate the pool</em>
<a name="515" href="#515">515</a>             {
<a name="516" href="#516">516</a>                 Object[] active = <strong>new</strong> Object[6];
<a name="517" href="#517">517</a>                 <strong>for</strong>(<strong>int</strong> i=0;i&lt;6;i++) {
<a name="518" href="#518">518</a>                     active[i] = pool.borrowObject();
<a name="519" href="#519">519</a>                 }
<a name="520" href="#520">520</a>                 <strong>for</strong>(<strong>int</strong> i=0;i&lt;6;i++) {
<a name="521" href="#521">521</a>                     pool.returnObject(active[i]);
<a name="522" href="#522">522</a>                 }
<a name="523" href="#523">523</a>             }
<a name="524" href="#524">524</a>     
<a name="525" href="#525">525</a>             <em class="comment">// note that it stays populated</em>
<a name="526" href="#526">526</a>             assertEquals(<span class="string">"Should have 6 idle"</span>,6,pool.getNumIdle());
<a name="527" href="#527">527</a>     
<a name="528" href="#528">528</a>             <em class="comment">// start the evictor</em>
<a name="529" href="#529">529</a>             pool.setTimeBetweenEvictionRunsMillis(50L);
<a name="530" href="#530">530</a>             
<a name="531" href="#531">531</a>             <em class="comment">// wait a second (well, .2 seconds)</em>
<a name="532" href="#532">532</a>             <strong>try</strong> { Thread.sleep(200L); } <strong>catch</strong>(Exception e) { }
<a name="533" href="#533">533</a>             
<a name="534" href="#534">534</a>             <em class="comment">// assert that the evictor has cleared out the pool</em>
<a name="535" href="#535">535</a>             assertEquals(<span class="string">"Should have 0 idle"</span>,0,pool.getNumIdle());
<a name="536" href="#536">536</a>     
<a name="537" href="#537">537</a>             <em class="comment">// stop the evictor </em>
<a name="538" href="#538">538</a>             pool.startEvictor(0L);
<a name="539" href="#539">539</a>         }
<a name="540" href="#540">540</a>     }
<a name="541" href="#541">541</a> 
<a name="542" href="#542">542</a>     <strong>public</strong> <strong>void</strong> testEvictionWithNegativeNumTests() throws Exception {
<a name="543" href="#543">543</a>         <em class="comment">// when numTestsPerEvictionRun is negative, it represents a fraction of the idle objects to test</em>
<a name="544" href="#544">544</a>         pool.setMaxIdle(6);
<a name="545" href="#545">545</a>         pool.setMaxActive(6);
<a name="546" href="#546">546</a>         pool.setNumTestsPerEvictionRun(-2);
<a name="547" href="#547">547</a>         pool.setMinEvictableIdleTimeMillis(50L);
<a name="548" href="#548">548</a>         pool.setTimeBetweenEvictionRunsMillis(100L);
<a name="549" href="#549">549</a> 
<a name="550" href="#550">550</a>         Object[] active = <strong>new</strong> Object[6];
<a name="551" href="#551">551</a>         <strong>for</strong>(<strong>int</strong> i=0;i&lt;6;i++) {
<a name="552" href="#552">552</a>             active[i] = pool.borrowObject();
<a name="553" href="#553">553</a>         }
<a name="554" href="#554">554</a>         <strong>for</strong>(<strong>int</strong> i=0;i&lt;6;i++) {
<a name="555" href="#555">555</a>             pool.returnObject(active[i]);
<a name="556" href="#556">556</a>         }
<a name="557" href="#557">557</a> 
<a name="558" href="#558">558</a>         <strong>try</strong> { Thread.sleep(100L); } <strong>catch</strong>(Exception e) { }
<a name="559" href="#559">559</a>         assertTrue(<span class="string">"Should at most 6 idle, found "</span> + pool.getNumIdle(),pool.getNumIdle() &lt;= 6);
<a name="560" href="#560">560</a>         <strong>try</strong> { Thread.sleep(100L); } <strong>catch</strong>(Exception e) { }
<a name="561" href="#561">561</a>         assertTrue(<span class="string">"Should at most 3 idle, found "</span> + pool.getNumIdle(),pool.getNumIdle() &lt;= 3);
<a name="562" href="#562">562</a>         <strong>try</strong> { Thread.sleep(100L); } <strong>catch</strong>(Exception e) { }
<a name="563" href="#563">563</a>         assertTrue(<span class="string">"Should be at most 2 idle, found "</span> + pool.getNumIdle(),pool.getNumIdle() &lt;= 2);
<a name="564" href="#564">564</a>         <strong>try</strong> { Thread.sleep(100L); } <strong>catch</strong>(Exception e) { }
<a name="565" href="#565">565</a>         assertEquals(<span class="string">"Should be zero idle, found "</span> + pool.getNumIdle(),0,pool.getNumIdle());
<a name="566" href="#566">566</a>     }
<a name="567" href="#567">567</a> 
<a name="568" href="#568">568</a>     <strong>public</strong> <strong>void</strong> testEviction() throws Exception {
<a name="569" href="#569">569</a>         pool.setMaxIdle(500);
<a name="570" href="#570">570</a>         pool.setMaxActive(500);
<a name="571" href="#571">571</a>         pool.setNumTestsPerEvictionRun(100);
<a name="572" href="#572">572</a>         pool.setMinEvictableIdleTimeMillis(250L);
<a name="573" href="#573">573</a>         pool.setTimeBetweenEvictionRunsMillis(500L);
<a name="574" href="#574">574</a>         pool.setTestWhileIdle(<strong>true</strong>);
<a name="575" href="#575">575</a> 
<a name="576" href="#576">576</a>         Object[] active = <strong>new</strong> Object[500];
<a name="577" href="#577">577</a>         <strong>for</strong>(<strong>int</strong> i=0;i&lt;500;i++) {
<a name="578" href="#578">578</a>             active[i] = pool.borrowObject();
<a name="579" href="#579">579</a>         }
<a name="580" href="#580">580</a>         <strong>for</strong>(<strong>int</strong> i=0;i&lt;500;i++) {
<a name="581" href="#581">581</a>             pool.returnObject(active[i]);
<a name="582" href="#582">582</a>         }
<a name="583" href="#583">583</a> 
<a name="584" href="#584">584</a>         <strong>try</strong> { Thread.sleep(1000L); } <strong>catch</strong>(Exception e) { }
<a name="585" href="#585">585</a>         assertTrue(<span class="string">"Should be less than 500 idle, found "</span> + pool.getNumIdle(),pool.getNumIdle() &lt; 500);
<a name="586" href="#586">586</a>         <strong>try</strong> { Thread.sleep(600L); } <strong>catch</strong>(Exception e) { }
<a name="587" href="#587">587</a>         assertTrue(<span class="string">"Should be less than 400 idle, found "</span> + pool.getNumIdle(),pool.getNumIdle() &lt; 400);
<a name="588" href="#588">588</a>         <strong>try</strong> { Thread.sleep(600L); } <strong>catch</strong>(Exception e) { }
<a name="589" href="#589">589</a>         assertTrue(<span class="string">"Should be less than 300 idle, found "</span> + pool.getNumIdle(),pool.getNumIdle() &lt; 300);
<a name="590" href="#590">590</a>         <strong>try</strong> { Thread.sleep(600L); } <strong>catch</strong>(Exception e) { }
<a name="591" href="#591">591</a>         assertTrue(<span class="string">"Should be less than 200 idle, found "</span> + pool.getNumIdle(),pool.getNumIdle() &lt; 200);
<a name="592" href="#592">592</a>         <strong>try</strong> { Thread.sleep(600L); } <strong>catch</strong>(Exception e) { }
<a name="593" href="#593">593</a>         assertTrue(<span class="string">"Should be less than 100 idle, found "</span> + pool.getNumIdle(),pool.getNumIdle() &lt; 100);
<a name="594" href="#594">594</a>         <strong>try</strong> { Thread.sleep(600L); } <strong>catch</strong>(Exception e) { }
<a name="595" href="#595">595</a>         assertEquals(<span class="string">"Should be zero idle, found "</span> + pool.getNumIdle(),0,pool.getNumIdle());
<a name="596" href="#596">596</a> 
<a name="597" href="#597">597</a>         <strong>for</strong>(<strong>int</strong> i=0;i&lt;500;i++) {
<a name="598" href="#598">598</a>             active[i] = pool.borrowObject();
<a name="599" href="#599">599</a>         }
<a name="600" href="#600">600</a>         <strong>for</strong>(<strong>int</strong> i=0;i&lt;500;i++) {
<a name="601" href="#601">601</a>             pool.returnObject(active[i]);
<a name="602" href="#602">602</a>         }
<a name="603" href="#603">603</a> 
<a name="604" href="#604">604</a>         <strong>try</strong> { Thread.sleep(1000L); } <strong>catch</strong>(Exception e) { }
<a name="605" href="#605">605</a>         assertTrue(<span class="string">"Should be less than 500 idle, found "</span> + pool.getNumIdle(),pool.getNumIdle() &lt; 500);
<a name="606" href="#606">606</a>         <strong>try</strong> { Thread.sleep(600L); } <strong>catch</strong>(Exception e) { }
<a name="607" href="#607">607</a>         assertTrue(<span class="string">"Should be less than 400 idle, found "</span> + pool.getNumIdle(),pool.getNumIdle() &lt; 400);
<a name="608" href="#608">608</a>         <strong>try</strong> { Thread.sleep(600L); } <strong>catch</strong>(Exception e) { }
<a name="609" href="#609">609</a>         assertTrue(<span class="string">"Should be less than 300 idle, found "</span> + pool.getNumIdle(),pool.getNumIdle() &lt; 300);
<a name="610" href="#610">610</a>         <strong>try</strong> { Thread.sleep(600L); } <strong>catch</strong>(Exception e) { }
<a name="611" href="#611">611</a>         assertTrue(<span class="string">"Should be less than 200 idle, found "</span> + pool.getNumIdle(),pool.getNumIdle() &lt; 200);
<a name="612" href="#612">612</a>         <strong>try</strong> { Thread.sleep(600L); } <strong>catch</strong>(Exception e) { }
<a name="613" href="#613">613</a>         assertTrue(<span class="string">"Should be less than 100 idle, found "</span> + pool.getNumIdle(),pool.getNumIdle() &lt; 100);
<a name="614" href="#614">614</a>         <strong>try</strong> { Thread.sleep(600L); } <strong>catch</strong>(Exception e) { }
<a name="615" href="#615">615</a>         assertEquals(<span class="string">"Should be zero idle, found "</span> + pool.getNumIdle(),0,pool.getNumIdle());
<a name="616" href="#616">616</a>     }
<a name="617" href="#617">617</a> 
<a name="618" href="#618">618</a>     <strong>public</strong> <strong>void</strong> testEvictionSoftMinIdle() throws Exception {
<a name="619" href="#619">619</a>         GenericObjectPool pool = <strong>null</strong>;
<a name="620" href="#620">620</a>         
<a name="621" href="#621">621</a>         <strong>class</strong> TimeTest <strong>extends</strong> BasePoolableObjectFactory {
<a name="622" href="#622">622</a>             <strong>private</strong> <strong>final</strong> <strong>long</strong> createTime;
<a name="623" href="#623">623</a>             <strong>public</strong> TimeTest() {
<a name="624" href="#624">624</a>                 createTime = System.currentTimeMillis();
<a name="625" href="#625">625</a>             }
<a name="626" href="#626">626</a>             <strong>public</strong> Object makeObject() throws Exception {
<a name="627" href="#627">627</a>                 <strong>return</strong> <strong>new</strong> TimeTest();