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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.hadoop.hbase.util</a></div> |
| <h1 title="Class DynamicClassLoader" class="title">Class DynamicClassLoader</h1> |
| </div> |
| <div class="inheritance" title="Inheritance Tree"><a href="https://docs.oracle.com/en/java/javase/17/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"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html" title="class or interface in java.lang" class="external-link">java.lang.ClassLoader</a> |
| <div class="inheritance"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/security/SecureClassLoader.html" title="class or interface in java.security" class="external-link">java.security.SecureClassLoader</a> |
| <div class="inheritance"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html" title="class or interface in java.net" class="external-link">java.net.URLClassLoader</a> |
| <div class="inheritance"><a href="ClassLoaderBase.html" title="class in org.apache.hadoop.hbase.util">org.apache.hadoop.hbase.util.ClassLoaderBase</a> |
| <div class="inheritance">org.apache.hadoop.hbase.util.DynamicClassLoader</div> |
| </div> |
| </div> |
| </div> |
| </div> |
| </div> |
| <section class="class-description" id="class-description"> |
| <dl class="notes"> |
| <dt>All Implemented Interfaces:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/Closeable.html" title="class or interface in java.io" class="external-link">Closeable</a></code>, <code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/AutoCloseable.html" title="class or interface in java.lang" class="external-link">AutoCloseable</a></code></dd> |
| </dl> |
| <hr> |
| <div class="type-signature"><span class="annotations">@Private |
| </span><span class="modifiers">public class </span><span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/DynamicClassLoader.html#line-53">DynamicClassLoader</a></span> |
| <span class="extends-implements">extends <a href="ClassLoaderBase.html" title="class in org.apache.hadoop.hbase.util">ClassLoaderBase</a></span></div> |
| <div class="block">This is a class loader that can load classes dynamically from new jar files under a configured |
| folder. The paths to the jar files are converted to URLs, and URLClassLoader logic is actually |
| used to load classes. This class loader always uses its parent class loader to load a class at |
| first. Only if its parent class loader can not load a class, we will try to load it using the |
| logic here. |
| <p> |
| The configured folder can be a HDFS path. In this case, the jar files under that folder will be |
| copied to local at first under ${hbase.local.dir}/jars/. The local copy will be updated if the |
| remote copy is updated, according to its last modified timestamp. |
| <p> |
| We can't unload a class already loaded. So we will use the existing jar files we already know to |
| load any class which can't be loaded using the parent class loader. If we still can't load the |
| class from the existing jar files, we will check if any new jar file is added, if so, we will |
| load the new jar file and try to load the class again. If still failed, a class not found |
| exception will be thrown. |
| <p> |
| Be careful in uploading new jar files and make sure all classes are consistent, otherwise, we may |
| not be able to load your classes properly.</div> |
| </section> |
| <section class="summary"> |
| <ul class="summary-list"> |
| <!-- =========== FIELD SUMMARY =========== --> |
| <li> |
| <section class="field-summary" id="field-summary"> |
| <h2>Field Summary</h2> |
| <div class="caption"><span>Fields</span></div> |
| <div class="summary-table three-column-summary"> |
| <div class="table-header col-first">Modifier and Type</div> |
| <div class="table-header col-second">Field</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-first even-row-color"><code>private static final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#DYNAMIC_JARS_DIR" class="member-name-link">DYNAMIC_JARS_DIR</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>private static final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#DYNAMIC_JARS_DIR_KEY" class="member-name-link">DYNAMIC_JARS_DIR_KEY</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>private static final <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></code></div> |
| <div class="col-second even-row-color"><code><a href="#DYNAMIC_JARS_OPTIONAL_CONF_KEY" class="member-name-link">DYNAMIC_JARS_OPTIONAL_CONF_KEY</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>private static final boolean</code></div> |
| <div class="col-second odd-row-color"><code><a href="#DYNAMIC_JARS_OPTIONAL_DEFAULT" class="member-name-link">DYNAMIC_JARS_OPTIONAL_DEFAULT</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>private <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/HashMap.html" title="class or interface in java.util" class="external-link">HashMap</a><<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>,<wbr><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Long.html" title="class or interface in java.lang" class="external-link">Long</a>></code></div> |
| <div class="col-second even-row-color"><code><a href="#jarModifiedTime" class="member-name-link">jarModifiedTime</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>private <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/File.html" title="class or interface in java.io" class="external-link">File</a></code></div> |
| <div class="col-second odd-row-color"><code><a href="#localDir" class="member-name-link">localDir</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>private static final org.slf4j.Logger</code></div> |
| <div class="col-second even-row-color"><code><a href="#LOG" class="member-name-link">LOG</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>private org.apache.hadoop.fs.Path</code></div> |
| <div class="col-second odd-row-color"><code><a href="#remoteDir" class="member-name-link">remoteDir</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>private org.apache.hadoop.fs.FileSystem</code></div> |
| <div class="col-second even-row-color"><code><a href="#remoteDirFs" class="member-name-link">remoteDirFs</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| <div class="col-first odd-row-color"><code>private final boolean</code></div> |
| <div class="col-second odd-row-color"><code><a href="#useDynamicJars" class="member-name-link">useDynamicJars</a></code></div> |
| <div class="col-last odd-row-color"> </div> |
| <div class="col-first even-row-color"><code>private final boolean</code></div> |
| <div class="col-second even-row-color"><code><a href="#userConfigUseDynamicJars" class="member-name-link">userConfigUseDynamicJars</a></code></div> |
| <div class="col-last even-row-color"> </div> |
| </div> |
| <div class="inherited-list"> |
| <h3 id="fields-inherited-from-class-org.apache.hadoop.hbase.util.ClassLoaderBase">Fields inherited from class org.apache.hadoop.hbase.util.<a href="ClassLoaderBase.html" title="class in org.apache.hadoop.hbase.util">ClassLoaderBase</a></h3> |
| <code><a href="ClassLoaderBase.html#DEFAULT_LOCAL_DIR">DEFAULT_LOCAL_DIR</a>, <a href="ClassLoaderBase.html#LOCAL_DIR_KEY">LOCAL_DIR_KEY</a>, <a href="ClassLoaderBase.html#parent">parent</a></code></div> |
| </section> |
| </li> |
| <!-- ======== CONSTRUCTOR SUMMARY ======== --> |
| <li> |
| <section class="constructor-summary" id="constructor-summary"> |
| <h2>Constructor Summary</h2> |
| <div class="caption"><span>Constructors</span></div> |
| <div class="summary-table two-column-summary"> |
| <div class="table-header col-first">Constructor</div> |
| <div class="table-header col-last">Description</div> |
| <div class="col-constructor-name even-row-color"><code><a href="#%3Cinit%3E(org.apache.hadoop.conf.Configuration,java.lang.ClassLoader)" class="member-name-link">DynamicClassLoader</a><wbr>(org.apache.hadoop.conf.Configuration conf, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html" title="class or interface in java.lang" class="external-link">ClassLoader</a> parent)</code></div> |
| <div class="col-last even-row-color"> |
| <div class="block">Creates a DynamicClassLoader that can load classes dynamically from jar files under a specific |
| folder.</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-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> |
| <div id="method-summary-table.tabpanel" role="tabpanel"> |
| <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-tab2 method-summary-table-tab4"><code>private void</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#initTempDir(org.apache.hadoop.conf.Configuration)" class="member-name-link">initTempDir</a><wbr>(org.apache.hadoop.conf.Configuration conf)</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 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/17/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a><?></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#loadClass(java.lang.String)" class="member-name-link">loadClass</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> name)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> </div> |
| <div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>private void</code></div> |
| <div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#loadNewJars()" class="member-name-link">loadNewJars</a>()</code></div> |
| <div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> </div> |
| <div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>private <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a><?></code></div> |
| <div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#tryRefreshClass(java.lang.String)" class="member-name-link">tryRefreshClass</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> name)</code></div> |
| <div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"> </div> |
| </div> |
| </div> |
| </div> |
| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-java.net.URLClassLoader">Methods inherited from class java.net.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html" title="class or interface in java.net" class="external-link">URLClassLoader</a></h3> |
| <code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#addURL(java.net.URL)" title="class or interface in java.net" class="external-link">addURL</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#close()" title="class or interface in java.net" class="external-link">close</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#definePackage(java.lang.String,java.util.jar.Manifest,java.net.URL)" title="class or interface in java.net" class="external-link">definePackage</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#findClass(java.lang.String)" title="class or interface in java.net" class="external-link">findClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#findResource(java.lang.String)" title="class or interface in java.net" class="external-link">findResource</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#findResources(java.lang.String)" title="class or interface in java.net" class="external-link">findResources</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#getPermissions(java.security.CodeSource)" title="class or interface in java.net" class="external-link">getPermissions</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#getResourceAsStream(java.lang.String)" title="class or interface in java.net" class="external-link">getResourceAsStream</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#getURLs()" title="class or interface in java.net" class="external-link">getURLs</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#newInstance(java.net.URL%5B%5D)" title="class or interface in java.net" class="external-link">newInstance</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/net/URLClassLoader.html#newInstance(java.net.URL%5B%5D,java.lang.ClassLoader)" title="class or interface in java.net" class="external-link">newInstance</a></code></div> |
| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-java.security.SecureClassLoader">Methods inherited from class java.security.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/security/SecureClassLoader.html" title="class or interface in java.security" class="external-link">SecureClassLoader</a></h3> |
| <code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/security/SecureClassLoader.html#defineClass(java.lang.String,byte%5B%5D,int,int,java.security.CodeSource)" title="class or interface in java.security" class="external-link">defineClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/security/SecureClassLoader.html#defineClass(java.lang.String,java.nio.ByteBuffer,java.security.CodeSource)" title="class or interface in java.security" class="external-link">defineClass</a></code></div> |
| <div class="inherited-list"> |
| <h3 id="methods-inherited-from-class-java.lang.ClassLoader">Methods inherited from class java.lang.<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html" title="class or interface in java.lang" class="external-link">ClassLoader</a></h3> |
| <code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#clearAssertionStatus()" title="class or interface in java.lang" class="external-link">clearAssertionStatus</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#defineClass(byte%5B%5D,int,int)" title="class or interface in java.lang" class="external-link">defineClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#defineClass(java.lang.String,byte%5B%5D,int,int)" title="class or interface in java.lang" class="external-link">defineClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#defineClass(java.lang.String,byte%5B%5D,int,int,java.security.ProtectionDomain)" title="class or interface in java.lang" class="external-link">defineClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#defineClass(java.lang.String,java.nio.ByteBuffer,java.security.ProtectionDomain)" title="class or interface in java.lang" class="external-link">defineClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#definePackage(java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.lang.String,java.net.URL)" title="class or interface in java.lang" class="external-link">definePackage</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#findClass(java.lang.String,java.lang.String)" title="class or interface in java.lang" class="external-link">findClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#findLibrary(java.lang.String)" title="class or interface in java.lang" class="external-link">findLibrary</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#findLoadedClass(java.lang.String)" title="class or interface in java.lang" class="external-link">findLoadedClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#findResource(java.lang.String,java.lang.String)" title="class or interface in java.lang" class="external-link">findResource</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#findSystemClass(java.lang.String)" title="class or interface in java.lang" class="external-link">findSystemClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getClassLoadingLock(java.lang.String)" title="class or interface in java.lang" class="external-link">getClassLoadingLock</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getDefinedPackage(java.lang.String)" title="class or interface in java.lang" class="external-link">getDefinedPackage</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getDefinedPackages()" title="class or interface in java.lang" class="external-link">getDefinedPackages</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getName()" title="class or interface in java.lang" class="external-link">getName</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getPackage(java.lang.String)" title="class or interface in java.lang" class="external-link">getPackage</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getPackages()" title="class or interface in java.lang" class="external-link">getPackages</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getParent()" title="class or interface in java.lang" class="external-link">getParent</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getPlatformClassLoader()" title="class or interface in java.lang" class="external-link">getPlatformClassLoader</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getResource(java.lang.String)" title="class or interface in java.lang" class="external-link">getResource</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getResources(java.lang.String)" title="class or interface in java.lang" class="external-link">getResources</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getSystemClassLoader()" title="class or interface in java.lang" class="external-link">getSystemClassLoader</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getSystemResource(java.lang.String)" title="class or interface in java.lang" class="external-link">getSystemResource</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getSystemResourceAsStream(java.lang.String)" title="class or interface in java.lang" class="external-link">getSystemResourceAsStream</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getSystemResources(java.lang.String)" title="class or interface in java.lang" class="external-link">getSystemResources</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#getUnnamedModule()" title="class or interface in java.lang" class="external-link">getUnnamedModule</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#isRegisteredAsParallelCapable()" title="class or interface in java.lang" class="external-link">isRegisteredAsParallelCapable</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#loadClass(java.lang.String,boolean)" title="class or interface in java.lang" class="external-link">loadClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#registerAsParallelCapable()" title="class or interface in java.lang" class="external-link">registerAsParallelCapable</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#resolveClass(java.lang.Class)" title="class or interface in java.lang" class="external-link">resolveClass</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#resources(java.lang.String)" title="class or interface in java.lang" class="external-link">resources</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#setClassAssertionStatus(java.lang.String,boolean)" title="class or interface in java.lang" class="external-link">setClassAssertionStatus</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#setDefaultAssertionStatus(boolean)" title="class or interface in java.lang" class="external-link">setDefaultAssertionStatus</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#setPackageAssertionStatus(java.lang.String,boolean)" title="class or interface in java.lang" class="external-link">setPackageAssertionStatus</a>, <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#setSigners(java.lang.Class,java.lang.Object%5B%5D)" title="class or interface in java.lang" class="external-link">setSigners</a></code></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/17/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/17/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/17/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/17/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/17/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/17/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/17/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/17/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/17/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/17/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/17/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/17/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"> |
| <!-- ============ FIELD DETAIL =========== --> |
| <li> |
| <section class="field-details" id="field-detail"> |
| <h2>Field Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="LOG"> |
| <h3>LOG</h3> |
| <div class="member-signature"><span class="modifiers">private static final</span> <span class="return-type">org.slf4j.Logger</span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/DynamicClassLoader.html#line-55">LOG</a></span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="DYNAMIC_JARS_DIR"> |
| <h3>DYNAMIC_JARS_DIR</h3> |
| <div class="member-signature"><span class="modifiers">private static final</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/DynamicClassLoader.html#line-58">DYNAMIC_JARS_DIR</a></span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="DYNAMIC_JARS_DIR_KEY"> |
| <h3>DYNAMIC_JARS_DIR_KEY</h3> |
| <div class="member-signature"><span class="modifiers">private static final</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/DynamicClassLoader.html#line-60">DYNAMIC_JARS_DIR_KEY</a></span></div> |
| <dl class="notes"> |
| <dt>See Also:</dt> |
| <dd> |
| <ul class="see-list"> |
| <li><a href="../../../../../constant-values.html#org.apache.hadoop.hbase.util.DynamicClassLoader.DYNAMIC_JARS_DIR_KEY">Constant Field Values</a></li> |
| </ul> |
| </dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="DYNAMIC_JARS_OPTIONAL_CONF_KEY"> |
| <h3>DYNAMIC_JARS_OPTIONAL_CONF_KEY</h3> |
| <div class="member-signature"><span class="modifiers">private static final</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/DynamicClassLoader.html#line-62">DYNAMIC_JARS_OPTIONAL_CONF_KEY</a></span></div> |
| <dl class="notes"> |
| <dt>See Also:</dt> |
| <dd> |
| <ul class="see-list"> |
| <li><a href="../../../../../constant-values.html#org.apache.hadoop.hbase.util.DynamicClassLoader.DYNAMIC_JARS_OPTIONAL_CONF_KEY">Constant Field Values</a></li> |
| </ul> |
| </dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="DYNAMIC_JARS_OPTIONAL_DEFAULT"> |
| <h3>DYNAMIC_JARS_OPTIONAL_DEFAULT</h3> |
| <div class="member-signature"><span class="modifiers">private static final</span> <span class="return-type">boolean</span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/DynamicClassLoader.html#line-63">DYNAMIC_JARS_OPTIONAL_DEFAULT</a></span></div> |
| <dl class="notes"> |
| <dt>See Also:</dt> |
| <dd> |
| <ul class="see-list"> |
| <li><a href="../../../../../constant-values.html#org.apache.hadoop.hbase.util.DynamicClassLoader.DYNAMIC_JARS_OPTIONAL_DEFAULT">Constant Field Values</a></li> |
| </ul> |
| </dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="userConfigUseDynamicJars"> |
| <h3>userConfigUseDynamicJars</h3> |
| <div class="member-signature"><span class="modifiers">private final</span> <span class="return-type">boolean</span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/DynamicClassLoader.html#line-66">userConfigUseDynamicJars</a></span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="useDynamicJars"> |
| <h3>useDynamicJars</h3> |
| <div class="member-signature"><span class="modifiers">private final</span> <span class="return-type">boolean</span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/DynamicClassLoader.html#line-68">useDynamicJars</a></span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="localDir"> |
| <h3>localDir</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/io/File.html" title="class or interface in java.io" class="external-link">File</a></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/DynamicClassLoader.html#line-70">localDir</a></span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="remoteDirFs"> |
| <h3>remoteDirFs</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type">org.apache.hadoop.fs.FileSystem</span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/DynamicClassLoader.html#line-73">remoteDirFs</a></span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="remoteDir"> |
| <h3>remoteDir</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type">org.apache.hadoop.fs.Path</span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/DynamicClassLoader.html#line-74">remoteDir</a></span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="jarModifiedTime"> |
| <h3>jarModifiedTime</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/util/HashMap.html" title="class or interface in java.util" class="external-link">HashMap</a><<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>,<wbr><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Long.html" title="class or interface in java.lang" class="external-link">Long</a>></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/DynamicClassLoader.html#line-77">jarModifiedTime</a></span></div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| <!-- ========= CONSTRUCTOR DETAIL ======== --> |
| <li> |
| <section class="constructor-details" id="constructor-detail"> |
| <h2>Constructor Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="<init>(org.apache.hadoop.conf.Configuration,java.lang.ClassLoader)"> |
| <h3>DynamicClassLoader</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/DynamicClassLoader.html#line-85">DynamicClassLoader</a></span><wbr><span class="parameters">(org.apache.hadoop.conf.Configuration conf, |
| <a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html" title="class or interface in java.lang" class="external-link">ClassLoader</a> parent)</span></div> |
| <div class="block">Creates a DynamicClassLoader that can load classes dynamically from jar files under a specific |
| folder.</div> |
| <dl class="notes"> |
| <dt>Parameters:</dt> |
| <dd><code>conf</code> - the configuration for the cluster.</dd> |
| <dd><code>parent</code> - the parent ClassLoader to set.</dd> |
| </dl> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| <!-- ============ METHOD DETAIL ========== --> |
| <li> |
| <section class="method-details" id="method-detail"> |
| <h2>Method Details</h2> |
| <ul class="member-list"> |
| <li> |
| <section class="detail" id="initTempDir(org.apache.hadoop.conf.Configuration)"> |
| <h3>initTempDir</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type">void</span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/DynamicClassLoader.html#line-109">initTempDir</a></span><wbr><span class="parameters">(org.apache.hadoop.conf.Configuration conf)</span></div> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="loadClass(java.lang.String)"> |
| <h3>loadClass</h3> |
| <div class="member-signature"><span class="modifiers">public</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a><?></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/DynamicClassLoader.html#line-132">loadClass</a></span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> name)</span> |
| throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassNotFoundException.html" title="class or interface in java.lang" class="external-link">ClassNotFoundException</a></span></div> |
| <dl class="notes"> |
| <dt>Overrides:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html#loadClass(java.lang.String)" title="class or interface in java.lang" class="external-link">loadClass</a></code> in class <code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassLoader.html" title="class or interface in java.lang" class="external-link">ClassLoader</a></code></dd> |
| <dt>Throws:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassNotFoundException.html" title="class or interface in java.lang" class="external-link">ClassNotFoundException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="tryRefreshClass(java.lang.String)"> |
| <h3>tryRefreshClass</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Class.html" title="class or interface in java.lang" class="external-link">Class</a><?></span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/DynamicClassLoader.html#line-149">tryRefreshClass</a></span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a> name)</span> |
| throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassNotFoundException.html" title="class or interface in java.lang" class="external-link">ClassNotFoundException</a></span></div> |
| <dl class="notes"> |
| <dt>Throws:</dt> |
| <dd><code><a href="https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/ClassNotFoundException.html" title="class or interface in java.lang" class="external-link">ClassNotFoundException</a></code></dd> |
| </dl> |
| </section> |
| </li> |
| <li> |
| <section class="detail" id="loadNewJars()"> |
| <h3>loadNewJars</h3> |
| <div class="member-signature"><span class="modifiers">private</span> <span class="return-type">void</span> <span class="element-name"><a href="../../../../../src-html/org/apache/hadoop/hbase/util/DynamicClassLoader.html#line-185">loadNewJars</a></span>()</div> |
| </section> |
| </li> |
| </ul> |
| </section> |
| </li> |
| </ul> |
| </section> |
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| <hr> |
| <p class="legal-copy"><small>Copyright © 2007–2020 <a href="https://www.apache.org/">The Apache Software Foundation</a>. All rights reserved.</small></p> |
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