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<div class="sub-title"><span class="package-label-in-type">Package</span>&nbsp;<a href="package-summary.html">org.apache.storm.blobstore</a></div>
<h1 title="Class ClientBlobStore" class="title">Class ClientBlobStore</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.storm.blobstore.ClientBlobStore</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/11/docs/api/java.base/java/lang/AutoCloseable.html" title="class or interface in java.lang" class="external-link">AutoCloseable</a></code>, <code><a href="../daemon/Shutdownable.html" title="interface in org.apache.storm.daemon">Shutdownable</a></code></dd>
</dl>
<dl class="notes">
<dt>Direct Known Subclasses:</dt>
<dd><code><a href="../hdfs/blobstore/HdfsClientBlobStore.html" title="class in org.apache.storm.hdfs.blobstore">HdfsClientBlobStore</a></code>, <code><a href="LocalModeClientBlobStore.html" title="class in org.apache.storm.blobstore">LocalModeClientBlobStore</a></code>, <code><a href="NimbusBlobStore.html" title="class in org.apache.storm.blobstore">NimbusBlobStore</a></code></dd>
</dl>
<hr>
<div class="type-signature"><span class="modifiers">public abstract class </span><span class="element-name type-name-label">ClientBlobStore</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>
implements <a href="../daemon/Shutdownable.html" title="interface in org.apache.storm.daemon">Shutdownable</a>, <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/AutoCloseable.html" title="class or interface in java.lang" class="external-link">AutoCloseable</a></span></div>
<div class="block">The ClientBlobStore has two concrete implementations 1. NimbusBlobStore 2. HdfsClientBlobStore.
<p>Create, update, read and delete are some of the basic operations defined by this interface. Each operation is
validated for permissions against an user. We currently have NIMBUS_ADMINS and SUPERVISOR_ADMINS configuration.
NIMBUS_ADMINS are given READ, WRITE and ADMIN access whereas the SUPERVISOR_ADMINS are given READ access in order to
read and download the blobs form the nimbus.
<p>The ACLs for the blob store are validated against whether the subject is a NIMBUS_ADMIN, SUPERVISOR_ADMIN or USER
who has read, write or admin privileges in order to perform respective operations on the blob.
<p>For more detailed implementation</div>
<dl class="notes">
<dt>See Also:</dt>
<dd>
<ul class="see-list">
<li><a href="NimbusBlobStore.html" title="class in org.apache.storm.blobstore"><code>NimbusBlobStore</code></a></li>
</ul>
</dd>
</dl>
</section>
<section class="summary">
<ul class="summary-list">
<!-- ======== NESTED CLASS SUMMARY ======== -->
<li>
<section class="nested-class-summary" id="nested-class-summary">
<h2>Nested Class Summary</h2>
<div class="caption"><span>Nested Classes</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">Class</div>
<div class="table-header col-last">Description</div>
<div class="col-first even-row-color"><code>static interface&nbsp;</code></div>
<div class="col-second even-row-color"><code><a href="ClientBlobStore.WithBlobstore.html" class="type-name-link" title="interface in org.apache.storm.blobstore">ClientBlobStore.WithBlobstore</a></code></div>
<div class="col-last even-row-color">&nbsp;</div>
</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()" class="member-name-link">ClientBlobStore</a>()</code></div>
<div class="col-last even-row-color">&nbsp;</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-tab3" role="tab" aria-selected="false" aria-controls="method-summary-table.tabpanel" tabindex="-1" onkeydown="switchTab(event)" onclick="show('method-summary-table', 'method-summary-table-tab3', 3)" class="table-tab">Abstract 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-tab3"><code>abstract void</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#close()" class="member-name-link">close</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">&nbsp;</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>final <a href="AtomicOutputStream.html" title="class in org.apache.storm.blobstore">AtomicOutputStream</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#createBlob(java.lang.String,org.apache.storm.generated.SettableBlobMeta)" class="member-name-link">createBlob</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key,
<a href="../generated/SettableBlobMeta.html" title="class in org.apache.storm.generated">SettableBlobMeta</a>&nbsp;meta)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Client facing API to create a blob.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>protected abstract <a href="AtomicOutputStream.html" title="class in org.apache.storm.blobstore">AtomicOutputStream</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#createBlobToExtend(java.lang.String,org.apache.storm.generated.SettableBlobMeta)" class="member-name-link">createBlobToExtend</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key,
<a href="../generated/SettableBlobMeta.html" title="class in org.apache.storm.generated">SettableBlobMeta</a>&nbsp;meta)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Client facing API to create a blob.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>abstract void</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#createStateInZookeeper(java.lang.String)" class="member-name-link">createStateInZookeeper</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Creates state inside a zookeeper.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>abstract void</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#deleteBlob(java.lang.String)" class="member-name-link">deleteBlob</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Client facing API to delete a blob.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>abstract <a href="InputStreamWithMeta.html" title="class in org.apache.storm.blobstore">InputStreamWithMeta</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getBlob(java.lang.String)" class="member-name-link">getBlob</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Client facing API to read a blob.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>abstract <a href="../generated/ReadableBlobMeta.html" title="class in org.apache.storm.generated">ReadableBlobMeta</a></code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getBlobMeta(java.lang.String)" class="member-name-link">getBlobMeta</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Client facing API to read the metadata information.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>abstract int</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getBlobReplication(java.lang.String)" class="member-name-link">getBlobReplication</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Client facing API to read the replication of a blob.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>abstract long</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#getRemoteBlobstoreUpdateTime()" class="member-name-link">getRemoteBlobstoreUpdateTime</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Client facing API to get the last update time of existing blobs in a blobstore.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>abstract boolean</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#isRemoteBlobExists(java.lang.String)" class="member-name-link">isRemoteBlobExists</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;blobKey)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Decide if the blob is deleted from cluster.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>abstract <a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&gt;</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#listKeys()" class="member-name-link">listKeys</a>()</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">List keys.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>abstract void</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#prepare(java.util.Map)" class="member-name-link">prepare</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/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/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>&gt;&nbsp;conf)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Sets up the client API by parsing the configs.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code>final void</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4"><code><a href="#setBlobMeta(java.lang.String,org.apache.storm.generated.SettableBlobMeta)" class="member-name-link">setBlobMeta</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key,
<a href="../generated/SettableBlobMeta.html" title="class in org.apache.storm.generated">SettableBlobMeta</a>&nbsp;meta)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab4">
<div class="block">Client facing API to set the metadata for a blob.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>protected abstract void</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#setBlobMetaToExtend(java.lang.String,org.apache.storm.generated.SettableBlobMeta)" class="member-name-link">setBlobMetaToExtend</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key,
<a href="../generated/SettableBlobMeta.html" title="class in org.apache.storm.generated">SettableBlobMeta</a>&nbsp;meta)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Client facing API to set the metadata for a blob.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>abstract boolean</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#setClient(java.util.Map,org.apache.storm.utils.NimbusClient)" class="member-name-link">setClient</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/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/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>&gt;&nbsp;conf,
<a href="../utils/NimbusClient.html" title="class in org.apache.storm.utils">NimbusClient</a>&nbsp;client)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Client facing API to set a nimbus client.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>abstract <a href="AtomicOutputStream.html" title="class in org.apache.storm.blobstore">AtomicOutputStream</a></code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#updateBlob(java.lang.String)" class="member-name-link">updateBlob</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Client facing API to update a blob.</div>
</div>
<div class="col-first even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code>abstract int</code></div>
<div class="col-second even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3"><code><a href="#updateBlobReplication(java.lang.String,int)" class="member-name-link">updateBlobReplication</a><wbr>(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key,
int&nbsp;replication)</code></div>
<div class="col-last even-row-color method-summary-table method-summary-table-tab2 method-summary-table-tab3">
<div class="block">Client facing API to update the replication of a blob.</div>
</div>
<div class="col-first odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code>static void</code></div>
<div class="col-second odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4"><code><a href="#withConfiguredClient(org.apache.storm.blobstore.ClientBlobStore.WithBlobstore)" class="member-name-link">withConfiguredClient</a><wbr>(<a href="ClientBlobStore.WithBlobstore.html" title="interface in org.apache.storm.blobstore">ClientBlobStore.WithBlobstore</a>&nbsp;withBlobstore)</code></div>
<div class="col-last odd-row-color method-summary-table method-summary-table-tab1 method-summary-table-tab4">&nbsp;</div>
</div>
</div>
</div>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-java.lang.Object">Methods inherited from class&nbsp;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>
<div class="inherited-list">
<h3 id="methods-inherited-from-class-org.apache.storm.daemon.Shutdownable">Methods inherited from interface&nbsp;org.apache.storm.daemon.<a href="../daemon/Shutdownable.html" title="interface in org.apache.storm.daemon">Shutdownable</a></h3>
<code><a href="../daemon/Shutdownable.html#shutdown()">shutdown</a></code></div>
</section>
</li>
</ul>
</section>
<section class="details">
<ul class="details-list">
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<li>
<section class="constructor-details" id="constructor-detail">
<h2>Constructor Details</h2>
<ul class="member-list">
<li>
<section class="detail" id="&lt;init&gt;()">
<h3>ClientBlobStore</h3>
<div class="member-signature"><span class="modifiers">public</span>&nbsp;<span class="element-name">ClientBlobStore</span>()</div>
</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="withConfiguredClient(org.apache.storm.blobstore.ClientBlobStore.WithBlobstore)">
<h3>withConfiguredClient</h3>
<div class="member-signature"><span class="modifiers">public static</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">withConfiguredClient</span><wbr><span class="parameters">(<a href="ClientBlobStore.WithBlobstore.html" title="interface in org.apache.storm.blobstore">ClientBlobStore.WithBlobstore</a>&nbsp;withBlobstore)</span>
throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Exception.html" title="class or interface in java.lang" class="external-link">Exception</a></span></div>
<dl class="notes">
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/Exception.html" title="class or interface in java.lang" class="external-link">Exception</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="prepare(java.util.Map)">
<h3>prepare</h3>
<div class="member-signature"><span class="modifiers">public abstract</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">prepare</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/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/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>&gt;&nbsp;conf)</span></div>
<div class="block">Sets up the client API by parsing the configs.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>conf</code> - The storm conf containing the config details</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="createBlobToExtend(java.lang.String,org.apache.storm.generated.SettableBlobMeta)">
<h3>createBlobToExtend</h3>
<div class="member-signature"><span class="modifiers">protected abstract</span>&nbsp;<span class="return-type"><a href="AtomicOutputStream.html" title="class in org.apache.storm.blobstore">AtomicOutputStream</a></span>&nbsp;<span class="element-name">createBlobToExtend</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key,
<a href="../generated/SettableBlobMeta.html" title="class in org.apache.storm.generated">SettableBlobMeta</a>&nbsp;meta)</span>
throws <span class="exceptions"><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a>,
<a href="../generated/KeyAlreadyExistsException.html" title="class in org.apache.storm.generated">KeyAlreadyExistsException</a></span></div>
<div class="block">Client facing API to create a blob.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>key</code> - blob key name</dd>
<dd><code>meta</code> - contains ACL information</dd>
<dt>Returns:</dt>
<dd>AtomicOutputStream returns an output stream into which data can be written</dd>
<dt>Throws:</dt>
<dd><code><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a></code></dd>
<dd><code><a href="../generated/KeyAlreadyExistsException.html" title="class in org.apache.storm.generated">KeyAlreadyExistsException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="updateBlob(java.lang.String)">
<h3>updateBlob</h3>
<div class="member-signature"><span class="modifiers">public abstract</span>&nbsp;<span class="return-type"><a href="AtomicOutputStream.html" title="class in org.apache.storm.blobstore">AtomicOutputStream</a></span>&nbsp;<span class="element-name">updateBlob</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key)</span>
throws <span class="exceptions"><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a>,
<a href="../generated/KeyNotFoundException.html" title="class in org.apache.storm.generated">KeyNotFoundException</a></span></div>
<div class="block">Client facing API to update a blob.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>key</code> - blob key name</dd>
<dt>Returns:</dt>
<dd>AtomicOutputStream returns an output stream into which data can be written</dd>
<dt>Throws:</dt>
<dd><code><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a></code></dd>
<dd><code><a href="../generated/KeyNotFoundException.html" title="class in org.apache.storm.generated">KeyNotFoundException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getBlobMeta(java.lang.String)">
<h3>getBlobMeta</h3>
<div class="member-signature"><span class="modifiers">public abstract</span>&nbsp;<span class="return-type"><a href="../generated/ReadableBlobMeta.html" title="class in org.apache.storm.generated">ReadableBlobMeta</a></span>&nbsp;<span class="element-name">getBlobMeta</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key)</span>
throws <span class="exceptions"><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a>,
<a href="../generated/KeyNotFoundException.html" title="class in org.apache.storm.generated">KeyNotFoundException</a></span></div>
<div class="block">Client facing API to read the metadata information.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>key</code> - blob key name</dd>
<dt>Returns:</dt>
<dd>AtomicOutputStream returns an output stream into which data can be written</dd>
<dt>Throws:</dt>
<dd><code><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a></code></dd>
<dd><code><a href="../generated/KeyNotFoundException.html" title="class in org.apache.storm.generated">KeyNotFoundException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="isRemoteBlobExists(java.lang.String)">
<h3>isRemoteBlobExists</h3>
<div class="member-signature"><span class="modifiers">public abstract</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">isRemoteBlobExists</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;blobKey)</span>
throws <span class="exceptions"><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a></span></div>
<div class="block">Decide if the blob is deleted from cluster.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>blobKey</code> - blob key</dd>
<dt>Throws:</dt>
<dd><code><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="setBlobMetaToExtend(java.lang.String,org.apache.storm.generated.SettableBlobMeta)">
<h3>setBlobMetaToExtend</h3>
<div class="member-signature"><span class="modifiers">protected abstract</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">setBlobMetaToExtend</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key,
<a href="../generated/SettableBlobMeta.html" title="class in org.apache.storm.generated">SettableBlobMeta</a>&nbsp;meta)</span>
throws <span class="exceptions"><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a>,
<a href="../generated/KeyNotFoundException.html" title="class in org.apache.storm.generated">KeyNotFoundException</a></span></div>
<div class="block">Client facing API to set the metadata for a blob.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>key</code> - blob key name</dd>
<dd><code>meta</code> - contains ACL information</dd>
<dt>Throws:</dt>
<dd><code><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a></code></dd>
<dd><code><a href="../generated/KeyNotFoundException.html" title="class in org.apache.storm.generated">KeyNotFoundException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="deleteBlob(java.lang.String)">
<h3>deleteBlob</h3>
<div class="member-signature"><span class="modifiers">public abstract</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">deleteBlob</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key)</span>
throws <span class="exceptions"><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a>,
<a href="../generated/KeyNotFoundException.html" title="class in org.apache.storm.generated">KeyNotFoundException</a></span></div>
<div class="block">Client facing API to delete a blob.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>key</code> - blob key name</dd>
<dt>Throws:</dt>
<dd><code><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a></code></dd>
<dd><code><a href="../generated/KeyNotFoundException.html" title="class in org.apache.storm.generated">KeyNotFoundException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getBlob(java.lang.String)">
<h3>getBlob</h3>
<div class="member-signature"><span class="modifiers">public abstract</span>&nbsp;<span class="return-type"><a href="InputStreamWithMeta.html" title="class in org.apache.storm.blobstore">InputStreamWithMeta</a></span>&nbsp;<span class="element-name">getBlob</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key)</span>
throws <span class="exceptions"><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a>,
<a href="../generated/KeyNotFoundException.html" title="class in org.apache.storm.generated">KeyNotFoundException</a></span></div>
<div class="block">Client facing API to read a blob.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>key</code> - blob key name</dd>
<dt>Returns:</dt>
<dd>an InputStream to read the metadata for a blob</dd>
<dt>Throws:</dt>
<dd><code><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a></code></dd>
<dd><code><a href="../generated/KeyNotFoundException.html" title="class in org.apache.storm.generated">KeyNotFoundException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="listKeys()">
<h3>listKeys</h3>
<div class="member-signature"><span class="modifiers">public abstract</span>&nbsp;<span class="return-type"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Iterator.html" title="class or interface in java.util" class="external-link">Iterator</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&gt;</span>&nbsp;<span class="element-name">listKeys</span>()</div>
<div class="block">List keys.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>Iterator for a list of keys currently present in the blob store.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getBlobReplication(java.lang.String)">
<h3>getBlobReplication</h3>
<div class="member-signature"><span class="modifiers">public abstract</span>&nbsp;<span class="return-type">int</span>&nbsp;<span class="element-name">getBlobReplication</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key)</span>
throws <span class="exceptions"><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a>,
<a href="../generated/KeyNotFoundException.html" title="class in org.apache.storm.generated">KeyNotFoundException</a></span></div>
<div class="block">Client facing API to read the replication of a blob.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>key</code> - blob key name</dd>
<dt>Returns:</dt>
<dd>int indicates the replication factor of a blob</dd>
<dt>Throws:</dt>
<dd><code><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a></code></dd>
<dd><code><a href="../generated/KeyNotFoundException.html" title="class in org.apache.storm.generated">KeyNotFoundException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="updateBlobReplication(java.lang.String,int)">
<h3>updateBlobReplication</h3>
<div class="member-signature"><span class="modifiers">public abstract</span>&nbsp;<span class="return-type">int</span>&nbsp;<span class="element-name">updateBlobReplication</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key,
int&nbsp;replication)</span>
throws <span class="exceptions"><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a>,
<a href="../generated/KeyNotFoundException.html" title="class in org.apache.storm.generated">KeyNotFoundException</a></span></div>
<div class="block">Client facing API to update the replication of a blob.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>key</code> - blob key name</dd>
<dd><code>replication</code> - int indicates the replication factor a blob has to be set</dd>
<dt>Returns:</dt>
<dd>int indicates the replication factor of a blob</dd>
<dt>Throws:</dt>
<dd><code><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a></code></dd>
<dd><code><a href="../generated/KeyNotFoundException.html" title="class in org.apache.storm.generated">KeyNotFoundException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="setClient(java.util.Map,org.apache.storm.utils.NimbusClient)">
<h3>setClient</h3>
<div class="member-signature"><span class="modifiers">public abstract</span>&nbsp;<span class="return-type">boolean</span>&nbsp;<span class="element-name">setClient</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/util/Map.html" title="class or interface in java.util" class="external-link">Map</a>&lt;<a href="https://docs.oracle.com/en/java/javase/11/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/11/docs/api/java.base/java/lang/Object.html" title="class or interface in java.lang" class="external-link">Object</a>&gt;&nbsp;conf,
<a href="../utils/NimbusClient.html" title="class in org.apache.storm.utils">NimbusClient</a>&nbsp;client)</span></div>
<div class="block">Client facing API to set a nimbus client.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>conf</code> - storm conf</dd>
<dd><code>client</code> - NimbusClient</dd>
<dt>Returns:</dt>
<dd>indicates where the client connection has been setup.</dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="createStateInZookeeper(java.lang.String)">
<h3>createStateInZookeeper</h3>
<div class="member-signature"><span class="modifiers">public abstract</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">createStateInZookeeper</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key)</span></div>
<div class="block">Creates state inside a zookeeper. Required for blobstore to write to zookeeper when Nimbus HA is turned on in
order to maintain state consistency.</div>
</section>
</li>
<li>
<section class="detail" id="close()">
<h3>close</h3>
<div class="member-signature"><span class="modifiers">public abstract</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">close</span>()</div>
<dl class="notes">
<dt>Specified by:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/AutoCloseable.html#close()" title="class or interface in java.lang" class="external-link">close</a></code>&nbsp;in interface&nbsp;<code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/AutoCloseable.html" title="class or interface in java.lang" class="external-link">AutoCloseable</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="createBlob(java.lang.String,org.apache.storm.generated.SettableBlobMeta)">
<h3>createBlob</h3>
<div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type"><a href="AtomicOutputStream.html" title="class in org.apache.storm.blobstore">AtomicOutputStream</a></span>&nbsp;<span class="element-name">createBlob</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key,
<a href="../generated/SettableBlobMeta.html" title="class in org.apache.storm.generated">SettableBlobMeta</a>&nbsp;meta)</span>
throws <span class="exceptions"><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a>,
<a href="../generated/KeyAlreadyExistsException.html" title="class in org.apache.storm.generated">KeyAlreadyExistsException</a></span></div>
<div class="block">Client facing API to create a blob.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>key</code> - blob key name</dd>
<dd><code>meta</code> - contains ACL information</dd>
<dt>Returns:</dt>
<dd>AtomicOutputStream returns an output stream into which data can be written</dd>
<dt>Throws:</dt>
<dd><code><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a></code></dd>
<dd><code><a href="../generated/KeyAlreadyExistsException.html" title="class in org.apache.storm.generated">KeyAlreadyExistsException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="setBlobMeta(java.lang.String,org.apache.storm.generated.SettableBlobMeta)">
<h3>setBlobMeta</h3>
<div class="member-signature"><span class="modifiers">public final</span>&nbsp;<span class="return-type">void</span>&nbsp;<span class="element-name">setBlobMeta</span><wbr><span class="parameters">(<a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/lang/String.html" title="class or interface in java.lang" class="external-link">String</a>&nbsp;key,
<a href="../generated/SettableBlobMeta.html" title="class in org.apache.storm.generated">SettableBlobMeta</a>&nbsp;meta)</span>
throws <span class="exceptions"><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a>,
<a href="../generated/KeyNotFoundException.html" title="class in org.apache.storm.generated">KeyNotFoundException</a></span></div>
<div class="block">Client facing API to set the metadata for a blob.</div>
<dl class="notes">
<dt>Parameters:</dt>
<dd><code>key</code> - blob key name</dd>
<dd><code>meta</code> - contains ACL information</dd>
<dt>Throws:</dt>
<dd><code><a href="../generated/AuthorizationException.html" title="class in org.apache.storm.generated">AuthorizationException</a></code></dd>
<dd><code><a href="../generated/KeyNotFoundException.html" title="class in org.apache.storm.generated">KeyNotFoundException</a></code></dd>
</dl>
</section>
</li>
<li>
<section class="detail" id="getRemoteBlobstoreUpdateTime()">
<h3>getRemoteBlobstoreUpdateTime</h3>
<div class="member-signature"><span class="modifiers">public abstract</span>&nbsp;<span class="return-type">long</span>&nbsp;<span class="element-name">getRemoteBlobstoreUpdateTime</span>()
throws <span class="exceptions"><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></span></div>
<div class="block">Client facing API to get the last update time of existing blobs in a blobstore. This is only required for use on
supervisors.</div>
<dl class="notes">
<dt>Returns:</dt>
<dd>the timestamp of when the blobstore was last updated. -1L if the blobstore
does not support this.</dd>
<dt>Throws:</dt>
<dd><code><a href="https://docs.oracle.com/en/java/javase/11/docs/api/java.base/java/io/IOException.html" title="class or interface in java.io" class="external-link">IOException</a></code></dd>
</dl>
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