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<div class="subTitle">org.apache.storm.common</div>
<h2 title="Class AbstractHadoopNimbusPluginAutoCreds" class="title">Class AbstractHadoopNimbusPluginAutoCreds</h2>
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<dt>All Implemented Interfaces:</dt>
<dd><a href="../../../../org/apache/storm/common/CredentialKeyProvider.html" title="interface in org.apache.storm.common">CredentialKeyProvider</a>, <a href="../../../../org/apache/storm/daemon/Shutdownable.html" title="interface in org.apache.storm.daemon">Shutdownable</a>, <a href="../../../../org/apache/storm/security/auth/ICredentialsRenewer.html" title="interface in org.apache.storm.security.auth">ICredentialsRenewer</a>, <a href="../../../../org/apache/storm/security/INimbusCredentialPlugin.html" title="interface in org.apache.storm.security">INimbusCredentialPlugin</a></dd>
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<dd><a href="../../../../org/apache/storm/hbase/security/AutoHBaseNimbus.html" title="class in org.apache.storm.hbase.security">AutoHBaseNimbus</a>, <a href="../../../../org/apache/storm/hdfs/security/AutoHDFSNimbus.html" title="class in org.apache.storm.hdfs.security">AutoHDFSNimbus</a>, <a href="../../../../org/apache/storm/hive/security/AutoHiveNimbus.html" title="class in org.apache.storm.hive.security">AutoHiveNimbus</a></dd>
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<pre>public abstract class <span class="typeNameLabel">AbstractHadoopNimbusPluginAutoCreds</span>
extends <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>
implements <a href="../../../../org/apache/storm/security/INimbusCredentialPlugin.html" title="interface in org.apache.storm.security">INimbusCredentialPlugin</a>, <a href="../../../../org/apache/storm/security/auth/ICredentialsRenewer.html" title="interface in org.apache.storm.security.auth">ICredentialsRenewer</a>, <a href="../../../../org/apache/storm/common/CredentialKeyProvider.html" title="interface in org.apache.storm.common">CredentialKeyProvider</a></pre>
<div class="block"><p>The base class that for auto credential plugins that abstracts out some of the common functionality.</p></div>
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<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/common/AbstractHadoopNimbusPluginAutoCreds.html#CONFIG_KEY_RESOURCES">CONFIG_KEY_RESOURCES</a></span></code>&nbsp;</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/common/AbstractHadoopNimbusPluginAutoCreds.html#AbstractHadoopNimbusPluginAutoCreds--">AbstractHadoopNimbusPluginAutoCreds</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>protected abstract void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/common/AbstractHadoopNimbusPluginAutoCreds.html#doPrepare-java.util.Map-">doPrepare</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;conf)</code>
<div class="block">Prepare the plugin.</div>
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<tr id="i1" class="rowColor">
<td class="colFirst"><code>protected abstract void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/common/AbstractHadoopNimbusPluginAutoCreds.html#doRenew-java.util.Map-java.util.Map-java.lang.String-">doRenew</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;credentials,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;topologyConf,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;topologyOwnerPrincipal)</code>&nbsp;</td>
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<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/common/AbstractHadoopNimbusPluginAutoCreds.html#fillHadoopConfiguration-java.util.Map-java.lang.String-org.apache.hadoop.conf.Configuration-">fillHadoopConfiguration</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&nbsp;topologyConf,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;configKey,
org.apache.hadoop.conf.Configuration&nbsp;configuration)</code>&nbsp;</td>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/common/AbstractHadoopNimbusPluginAutoCreds.html#getConfigKeys-java.util.Map-">getConfigKeys</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;conf)</code>&nbsp;</td>
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<td class="colFirst"><code>protected abstract <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/common/AbstractHadoopNimbusPluginAutoCreds.html#getConfigKeyString--">getConfigKeyString</a></span>()</code>
<div class="block">The lookup key for the config key string.</div>
</td>
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<tr id="i5" class="rowColor">
<td class="colFirst"><code>protected <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;org.apache.commons.math3.util.Pair&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,org.apache.hadoop.security.Credentials&gt;&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/common/AbstractHadoopNimbusPluginAutoCreds.html#getCredentials-java.util.Map-java.util.List-">getCredentials</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;credentials,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;configKeys)</code>&nbsp;</td>
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<td class="colFirst"><code>protected abstract byte[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/common/AbstractHadoopNimbusPluginAutoCreds.html#getHadoopCredentials-java.util.Map-java.lang.String-">getHadoopCredentials</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;topologyConf,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;topologyOwnerPrincipal)</code>&nbsp;</td>
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<tr id="i7" class="rowColor">
<td class="colFirst"><code>protected abstract byte[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/common/AbstractHadoopNimbusPluginAutoCreds.html#getHadoopCredentials-java.util.Map-java.lang.String-java.lang.String-">getHadoopCredentials</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;topologyConf,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;configKey,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;topologyOwnerPrincipal)</code>&nbsp;</td>
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<tr id="i8" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/common/AbstractHadoopNimbusPluginAutoCreds.html#populateCredentials-java.util.Map-java.util.Map-java.lang.String-">populateCredentials</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;credentials,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;topologyConf,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;topologyOwnerPrincipal)</code>
<div class="block">Method that will be called on nimbus as part of submit topology.</div>
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<tr id="i9" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/common/AbstractHadoopNimbusPluginAutoCreds.html#prepare-java.util.Map-">prepare</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;conf)</code>
<div class="block">This method will be called when nimbus initializes.</div>
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<tr id="i10" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../org/apache/storm/common/AbstractHadoopNimbusPluginAutoCreds.html#renew-java.util.Map-java.util.Map-java.lang.String-">renew</a></span>(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;credentials,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;topologyConf,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;topologyOwnerPrincipal)</code>
<div class="block">Renew any credentials that need to be renewed.</div>
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<code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
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<h3>Methods inherited from interface&nbsp;org.apache.storm.security.<a href="../../../../org/apache/storm/security/INimbusCredentialPlugin.html" title="interface in org.apache.storm.security">INimbusCredentialPlugin</a></h3>
<code><a href="../../../../org/apache/storm/security/INimbusCredentialPlugin.html#populateCredentials-java.util.Map-java.util.Map-">populateCredentials</a></code></li>
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<code><a href="../../../../org/apache/storm/daemon/Shutdownable.html#shutdown--">shutdown</a></code></li>
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<h3>Methods inherited from interface&nbsp;org.apache.storm.common.<a href="../../../../org/apache/storm/common/CredentialKeyProvider.html" title="interface in org.apache.storm.common">CredentialKeyProvider</a></h3>
<code><a href="../../../../org/apache/storm/common/CredentialKeyProvider.html#getCredentialKey-java.lang.String-">getCredentialKey</a></code></li>
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<pre>public static final&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a> CONFIG_KEY_RESOURCES</pre>
<dl>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../constant-values.html#org.apache.storm.common.AbstractHadoopNimbusPluginAutoCreds.CONFIG_KEY_RESOURCES">Constant Field Values</a></dd>
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<h4>AbstractHadoopNimbusPluginAutoCreds</h4>
<pre>public&nbsp;AbstractHadoopNimbusPluginAutoCreds()</pre>
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<h4>prepare</h4>
<pre>public&nbsp;void&nbsp;prepare(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;conf)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../org/apache/storm/security/INimbusCredentialPlugin.html#prepare-java.util.Map-">INimbusCredentialPlugin</a></code></span></div>
<div class="block"><p>This method will be called when nimbus initializes.</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../org/apache/storm/security/auth/ICredentialsRenewer.html#prepare-java.util.Map-">prepare</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../org/apache/storm/security/auth/ICredentialsRenewer.html" title="interface in org.apache.storm.security.auth">ICredentialsRenewer</a></code></dd>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../org/apache/storm/security/INimbusCredentialPlugin.html#prepare-java.util.Map-">prepare</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../org/apache/storm/security/INimbusCredentialPlugin.html" title="interface in org.apache.storm.security">INimbusCredentialPlugin</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>conf</code> - the cluster config</dd>
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<h4>populateCredentials</h4>
<pre>public&nbsp;void&nbsp;populateCredentials(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;credentials,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;topologyConf,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;topologyOwnerPrincipal)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../org/apache/storm/security/INimbusCredentialPlugin.html#populateCredentials-java.util.Map-java.util.Map-java.lang.String-">INimbusCredentialPlugin</a></code></span></div>
<div class="block"><p>Method that will be called on nimbus as part of submit topology. This plugin will be called at least once during the submit Topology action. It will be not be called during activate instead the credentials return by this method will be merged with the other credentials in the topology and stored in zookeeper.</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../org/apache/storm/security/INimbusCredentialPlugin.html#populateCredentials-java.util.Map-java.util.Map-java.lang.String-">populateCredentials</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../org/apache/storm/security/INimbusCredentialPlugin.html" title="interface in org.apache.storm.security">INimbusCredentialPlugin</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>credentials</code> - credentials map where more credentials will be added.</dd>
<dd><code>topologyConf</code> - topology configuration</dd>
<dd><code>topologyOwnerPrincipal</code> - the full principal name of the owner of the topology</dd>
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<pre>public&nbsp;void&nbsp;renew(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;credentials,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;topologyConf,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;topologyOwnerPrincipal)</pre>
<div class="block"><span class="descfrmTypeLabel">Description copied from interface:&nbsp;<code><a href="../../../../org/apache/storm/security/auth/ICredentialsRenewer.html#renew-java.util.Map-java.util.Map-java.lang.String-">ICredentialsRenewer</a></code></span></div>
<div class="block"><p>Renew any credentials that need to be renewed. (Update the credentials if needed)</p></div>
<dl>
<dt><span class="overrideSpecifyLabel">Specified by:</span></dt>
<dd><code><a href="../../../../org/apache/storm/security/auth/ICredentialsRenewer.html#renew-java.util.Map-java.util.Map-java.lang.String-">renew</a></code>&nbsp;in interface&nbsp;<code><a href="../../../../org/apache/storm/security/auth/ICredentialsRenewer.html" title="interface in org.apache.storm.security.auth">ICredentialsRenewer</a></code></dd>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>credentials</code> - the credentials that may have something to renew.</dd>
<dd><code>topologyConf</code> - topology configuration.</dd>
<dd><code>topologyOwnerPrincipal</code> - the full principal name of the owner of the topology</dd>
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<pre>protected&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;org.apache.commons.math3.util.Pair&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,org.apache.hadoop.security.Credentials&gt;&gt;&nbsp;getCredentials(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;credentials,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;configKeys)</pre>
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<pre>protected&nbsp;void&nbsp;fillHadoopConfiguration(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&nbsp;topologyConf,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;configKey,
org.apache.hadoop.conf.Configuration&nbsp;configuration)</pre>
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<pre>protected abstract&nbsp;void&nbsp;doPrepare(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;conf)</pre>
<div class="block"><p>Prepare the plugin.</p></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>conf</code> - the storm cluster conf set via storm.yaml</dd>
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<pre>protected abstract&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;getConfigKeyString()</pre>
<div class="block"><p>The lookup key for the config key string.</p></div>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>the config key string</dd>
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<pre>protected abstract&nbsp;byte[]&nbsp;getHadoopCredentials(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;topologyConf,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;configKey,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;topologyOwnerPrincipal)</pre>
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<pre>protected abstract&nbsp;byte[]&nbsp;getHadoopCredentials(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;topologyConf,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;topologyOwnerPrincipal)</pre>
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<pre>protected abstract&nbsp;void&nbsp;doRenew(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;credentials,
<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;topologyConf,
<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;topologyOwnerPrincipal)</pre>
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<pre>protected&nbsp;<a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&gt;&nbsp;getConfigKeys(<a href="https://docs.oracle.com/javase/8/docs/api/java/util/Map.html?is-external=true" title="class or interface in java.util">Map</a>&lt;<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;conf)</pre>
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