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| <li>Summary: </li> |
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| <div class="sub-title"><span class="package-label-in-type">Package</span> <a href="package-summary.html">org.apache.jmeter.protocol.http.sampler</a></div> |
| <h1 title="Class ResourcesDownloader" class="title">Class ResourcesDownloader</h1> |
| </div> |
| <div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">java.lang.Object</a> |
| <div class="inheritance">org.apache.jmeter.protocol.http.sampler.ResourcesDownloader</div> |
| </div> |
| <section class="class-description" id="class-description"> |
| <hr> |
| <div class="type-signature"><span class="modifiers">public class </span><span class="element-name type-name-label">ResourcesDownloader</span> |
| <span class="extends-implements">extends <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></span></div> |
| <div class="block">Manages the parallel http resources download.<br> |
| A shared thread pool is used by all the sample.<br> |
| A sampler will usually do the following |
| <pre> <code> |
| // list of AsynSamplerResultHolder to download |
| List<Callable<AsynSamplerResultHolder>> list = ... |
| |
| // max parallel downloads |
| int maxConcurrentDownloads = ... |
| |
| // get the singleton instance |
| ResourcesDownloader resourcesDownloader = ResourcesDownloader.getInstance(); |
| |
| // schedule the downloads and wait for the completion |
| List<Future<AsynSamplerResultHolder>> retExec = |
| resourcesDownloader.invokeAllAndAwaitTermination(maxConcurrentDownloads, list); |
| |
| </code></pre> |
| |
| the call to invokeAllAndAwaitTermination will block until the downloads complete or get interrupted<br> |
| the Future list only contains task that have been scheduled in the threadpool.<br> |
| The status of those futures are either done or cancelled<br> |
| <br> |
| |
| Future enhancements: |
| <ul> |
| <li>this implementation should be replaced with a NIO async download |
| in order to reduce the number of threads needed</li> |
| </ul></div> |
| <dl class="notes"> |
| <dt>Since:</dt> |
| <dd>3.0</dd> |
| </dl> |
| </section> |
| <section class="summary"> |
| <ul class="summary-list"> |
| <!-- ======== NESTED CLASS SUMMARY ======== --> |
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| <h2>Nested Class Summary</h2> |
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| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Class</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color"><code>static class </code></div> |
| <div class="col-second even-row-color"><code><a href="ResourcesDownloader.AsynSamplerResultHolder.html" class="type-name-link" title="class in org.apache.jmeter.protocol.http.sampler">ResourcesDownloader.AsynSamplerResultHolder</a></code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">Holder of AsynSampler result</div> |
| </div> |
| </div> |
| </section> |
| </li> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <li> |
| <section class="method-summary" id="method-summary"> |
| <h2>Method Summary</h2> |
| <div id="method-summary-table"> |
| <div class="table-tabs" role="tablist" aria-orientation="horizontal"><button id="method-summary-table-tab0" role="tab" aria-selected="true" aria-controls="method-summary-table.tabpanel" tabindex="0" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table', 3)" class="active-table-tab">All Methods</button><button id="method-summary-table-tab1" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab1', 3)" class="table-tab">Static Methods</button><button id="method-summary-table-tab2" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab2', 3)" class="table-tab">Instance Methods</button><button id="method-summary-table-tab4" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab4', 3)" class="table-tab">Concrete Methods</button></div> |
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| <div class="summary-table three-column-summary" aria-labelledby="method-summary-table-tab0"> |
| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Method</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static <a href="ResourcesDownloader.html" title="class in org.apache.jmeter.protocol.http.sampler">ResourcesDownloader</a></code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#getInstance()" class="member-name-link">getInstance</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"> </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/concurrent/Future.html" title="class or interface in java.util.concurrent" class="external-link">Future</a><<a href="ResourcesDownloader.AsynSamplerResultHolder.html" title="class in org.apache.jmeter.protocol.http.sampler">ResourcesDownloader.AsynSamplerResultHolder</a>>></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#invokeAllAndAwaitTermination(int,java.util.List)" class="member-name-link">invokeAllAndAwaitTermination</a><wbr>(int maxConcurrentDownloads, |
| <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/concurrent/Callable.html" title="class or interface in java.util.concurrent" class="external-link">Callable</a><<a href="ResourcesDownloader.AsynSamplerResultHolder.html" title="class in org.apache.jmeter.protocol.http.sampler">ResourcesDownloader.AsynSamplerResultHolder</a>>> list)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">This method will block until the downloads complete or it get interrupted |
| the Future list returned by this method only contains tasks that have been scheduled in the threadpool.<br> |
| The status of those futures are either done or cancelled</div> |
| </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>void</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#shrink()" class="member-name-link">shrink</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> |
| <div class="block">this method will try to shrink the thread pool size as much as possible |
| it should be called at the end of a test</div> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class java.lang.<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a></h3> |
| <code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#clone()" title="class or interface in java.lang" class="external-link">clone</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#equals(java.lang.Object)" title="class or interface in java.lang" class="external-link">equals</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#finalize()" title="class or interface in java.lang" class="external-link">finalize</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#getClass()" title="class or interface in java.lang" class="external-link">getClass</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#hashCode()" title="class or interface in java.lang" class="external-link">hashCode</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#notify()" title="class or interface in java.lang" class="external-link">notify</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#notifyAll()" title="class or interface in java.lang" class="external-link">notifyAll</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#toString()" title="class or interface in java.lang" class="external-link">toString</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait()" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait(long)" title="class or interface in java.lang" class="external-link">wait</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Object.html#wait(long,int)" title="class or interface in java.lang" class="external-link">wait</a></code></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| <section class="details"> |
| <ul class="details-list"> |
| <!-- ============ METHOD DETAIL ========== --> |
| <li> |
| <section class="method-details" id="method-detail"> |
| <h2>Method Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="getInstance()"> |
| <h3>getInstance</h3> |
| <div class="member-signature"><span class="modifiers">public static</span> <span class="return-type"><a href="ResourcesDownloader.html" title="class in org.apache.jmeter.protocol.http.sampler">ResourcesDownloader</a></span> <span class="element-name">getInstance</span>()</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="shrink()"> |
| <h3>shrink</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type">void</span> <span class="element-name">shrink</span>()</div> |
| <div class="block">this method will try to shrink the thread pool size as much as possible |
| it should be called at the end of a test</div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="invokeAllAndAwaitTermination(int,java.util.List)"> |
| <h3>invokeAllAndAwaitTermination</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/concurrent/Future.html" title="class or interface in java.util.concurrent" class="external-link">Future</a><<a href="ResourcesDownloader.AsynSamplerResultHolder.html" title="class in org.apache.jmeter.protocol.http.sampler">ResourcesDownloader.AsynSamplerResultHolder</a>>></span> <span class="element-name">invokeAllAndAwaitTermination</span><wbr><span class="parameters">(int maxConcurrentDownloads, |
| <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/List.html" title="class or interface in java.util" class="external-link">List</a><<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/concurrent/Callable.html" title="class or interface in java.util.concurrent" class="external-link">Callable</a><<a href="ResourcesDownloader.AsynSamplerResultHolder.html" title="class in org.apache.jmeter.protocol.http.sampler">ResourcesDownloader.AsynSamplerResultHolder</a>>> list)</span> |
| throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/InterruptedException.html" title="class or interface in java.lang" class="external-link">InterruptedException</a></span></div> |
| <div class="block">This method will block until the downloads complete or it get interrupted |
| the Future list returned by this method only contains tasks that have been scheduled in the threadpool.<br> |
| The status of those futures are either done or cancelled</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>maxConcurrentDownloads</code> - max concurrent downloads</dd> |
| <dd><code>list</code> - list of resources to download</dd> |
| <dt>Returns:</dt> |
| <dd>list tasks that have been scheduled</dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/InterruptedException.html" title="class or interface in java.lang" class="external-link">InterruptedException</a></code> - when interrupted while waiting</dd> |
| </dl> |
| </section> |
| </li> |
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