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<div class="subTitle">org.apache.hadoop.hdfs.server.namenode</div>
<h2 title="Class UGIResolver" class="title">Class UGIResolver</h2>
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<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/FsUGIResolver.html" title="class in org.apache.hadoop.hdfs.server.namenode">FsUGIResolver</a>, <a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/SingleUGIResolver.html" title="class in org.apache.hadoop.hdfs.server.namenode">SingleUGIResolver</a></dd>
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<pre>@InterfaceAudience.Public
@InterfaceStability.Unstable
public abstract class <span class="typeNameLabel">UGIResolver</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></pre>
<div class="block">Pluggable class for mapping ownership and permissions from an external
store to an FSImage.</div>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/UGIResolver.html#GROUP_STRID_OFFSET">GROUP_STRID_OFFSET</a></span></code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/UGIResolver.html#USER_GROUP_STRID_MASK">USER_GROUP_STRID_MASK</a></span></code>&nbsp;</td>
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<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/UGIResolver.html#USER_STRID_OFFSET">USER_STRID_OFFSET</a></span></code>&nbsp;</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/UGIResolver.html#UGIResolver--">UGIResolver</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>abstract void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/UGIResolver.html#addGroup-java.lang.String-">addGroup</a></span>(<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;name)</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/hadoop/hdfs/server/namenode/UGIResolver.html#addGroup-java.lang.String-int-">addGroup</a></span>(<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;name,
int&nbsp;id)</code>&nbsp;</td>
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<td class="colFirst"><code>abstract void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/UGIResolver.html#addUser-java.lang.String-">addUser</a></span>(<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;name)</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/hadoop/hdfs/server/namenode/UGIResolver.html#addUser-java.lang.String-int-">addUser</a></span>(<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;name,
int&nbsp;id)</code>&nbsp;</td>
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<td class="colFirst"><code>protected long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/UGIResolver.html#buildPermissionStatus-java.lang.String-java.lang.String-short-">buildPermissionStatus</a></span>(<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;owner,
<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;group,
short&nbsp;permission)</code>
<div class="block">Permission is serialized as a 64-bit long.</div>
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<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/UGIResolver.html#getPermissionsProto-org.apache.hadoop.fs.FileStatus-org.apache.hadoop.fs.permission.AclStatus-">getPermissionsProto</a></span>(<a href="../../../../../../org/apache/hadoop/fs/FileStatus.html" title="class in org.apache.hadoop.fs">FileStatus</a>&nbsp;remoteStatus,
<a href="../../../../../../org/apache/hadoop/fs/permission/AclStatus.html" title="class in org.apache.hadoop.fs.permission">AclStatus</a>&nbsp;remoteAcl)</code>
<div class="block">Get the serialized, local permissions for the external
<a href="../../../../../../org/apache/hadoop/fs/FileStatus.html" title="class in org.apache.hadoop.fs"><code>FileStatus</code></a> or <a href="../../../../../../org/apache/hadoop/fs/permission/AclStatus.html" title="class in org.apache.hadoop.fs.permission"><code>AclStatus</code></a>.</div>
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<td class="colFirst"><code>protected <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/hadoop/hdfs/server/namenode/UGIResolver.html#group-java.lang.String-">group</a></span>(<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;s)</code>&nbsp;</td>
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<td class="colFirst"><code><a href="../../../../../../org/apache/hadoop/fs/permission/FsPermission.html" title="class in org.apache.hadoop.fs.permission">FsPermission</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/UGIResolver.html#permission-org.apache.hadoop.fs.permission.FsPermission-">permission</a></span>(<a href="../../../../../../org/apache/hadoop/fs/permission/FsPermission.html" title="class in org.apache.hadoop.fs.permission">FsPermission</a>&nbsp;s)</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/hadoop/hdfs/server/namenode/UGIResolver.html#resetUGInfo--">resetUGInfo</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/UGIResolver.html#resolve-org.apache.hadoop.fs.FileStatus-">resolve</a></span>(<a href="../../../../../../org/apache/hadoop/fs/FileStatus.html" title="class in org.apache.hadoop.fs">FileStatus</a>&nbsp;s)</code>&nbsp;</td>
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<tr id="i10" class="altColor">
<td class="colFirst"><code><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/Integer.html?is-external=true" title="class or interface in java.lang">Integer</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;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/hadoop/hdfs/server/namenode/UGIResolver.html#ugiMap--">ugiMap</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>protected <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/hadoop/hdfs/server/namenode/UGIResolver.html#user-java.lang.String-">user</a></span>(<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;s)</code>&nbsp;</td>
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<h4>USER_STRID_OFFSET</h4>
<pre>public static final&nbsp;int USER_STRID_OFFSET</pre>
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<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../constant-values.html#org.apache.hadoop.hdfs.server.namenode.UGIResolver.USER_STRID_OFFSET">Constant Field Values</a></dd>
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<h4>GROUP_STRID_OFFSET</h4>
<pre>public static final&nbsp;int GROUP_STRID_OFFSET</pre>
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<dd><a href="../../../../../../constant-values.html#org.apache.hadoop.hdfs.server.namenode.UGIResolver.GROUP_STRID_OFFSET">Constant Field Values</a></dd>
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<h4>USER_GROUP_STRID_MASK</h4>
<pre>public static final&nbsp;long USER_GROUP_STRID_MASK</pre>
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<dd><a href="../../../../../../constant-values.html#org.apache.hadoop.hdfs.server.namenode.UGIResolver.USER_GROUP_STRID_MASK">Constant Field Values</a></dd>
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<pre>public&nbsp;UGIResolver()</pre>
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<h4>buildPermissionStatus</h4>
<pre>protected final&nbsp;long&nbsp;buildPermissionStatus(<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;owner,
<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;group,
short&nbsp;permission)</pre>
<div class="block">Permission is serialized as a 64-bit long. [0:24):[25:48):[48:64) (in Big
Endian).
The first and the second parts are the string ids of the user and
group name, and the last 16 bits are the permission bits.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>owner</code> - name of owner</dd>
<dd><code>group</code> - name of group</dd>
<dd><code>permission</code> - Permission octects</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>FSImage encoding of permissions</dd>
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<pre>public&nbsp;<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/Integer.html?is-external=true" title="class or interface in java.lang">Integer</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;ugiMap()</pre>
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<pre>public abstract&nbsp;void&nbsp;addUser(<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;name)</pre>
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<pre>protected&nbsp;void&nbsp;addUser(<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;name,
int&nbsp;id)</pre>
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<pre>public abstract&nbsp;void&nbsp;addGroup(<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;name)</pre>
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<pre>protected&nbsp;void&nbsp;addGroup(<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;name,
int&nbsp;id)</pre>
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<pre>protected&nbsp;void&nbsp;resetUGInfo()</pre>
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<h4>resolve</h4>
<pre>public&nbsp;long&nbsp;resolve(<a href="../../../../../../org/apache/hadoop/fs/FileStatus.html" title="class in org.apache.hadoop.fs">FileStatus</a>&nbsp;s)</pre>
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<h4>user</h4>
<pre>protected&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;user(<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;s)</pre>
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<h4>group</h4>
<pre>protected&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;group(<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;s)</pre>
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<h4>permission</h4>
<pre>public&nbsp;<a href="../../../../../../org/apache/hadoop/fs/permission/FsPermission.html" title="class in org.apache.hadoop.fs.permission">FsPermission</a>&nbsp;permission(<a href="../../../../../../org/apache/hadoop/fs/permission/FsPermission.html" title="class in org.apache.hadoop.fs.permission">FsPermission</a>&nbsp;s)</pre>
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<h4>getPermissionsProto</h4>
<pre>public&nbsp;long&nbsp;getPermissionsProto(<a href="../../../../../../org/apache/hadoop/fs/FileStatus.html" title="class in org.apache.hadoop.fs">FileStatus</a>&nbsp;remoteStatus,
<a href="../../../../../../org/apache/hadoop/fs/permission/AclStatus.html" title="class in org.apache.hadoop.fs.permission">AclStatus</a>&nbsp;remoteAcl)</pre>
<div class="block">Get the serialized, local permissions for the external
<a href="../../../../../../org/apache/hadoop/fs/FileStatus.html" title="class in org.apache.hadoop.fs"><code>FileStatus</code></a> or <a href="../../../../../../org/apache/hadoop/fs/permission/AclStatus.html" title="class in org.apache.hadoop.fs.permission"><code>AclStatus</code></a>. <code>remoteAcl</code> is used when it
is not null, otherwise <code>remoteStatus</code> is used.</div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>remoteStatus</code> - FileStatus on remote store.</dd>
<dd><code>remoteAcl</code> - AclStatus on external store.</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>serialized, local permissions the FileStatus or AclStatus map to.</dd>
</dl>
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