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<div class="subTitle">org.apache.sshd.common.util.io</div>
<h2 title="Class ModifiableFileWatcher" class="title">Class ModifiableFileWatcher</h2>
</div>
<div class="contentContainer">
<ul class="inheritance">
<li><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">java.lang.Object</a></li>
<li>
<ul class="inheritance">
<li><a href="../../../../../../org/apache/sshd/common/util/logging/AbstractLoggingBean.html" title="class in org.apache.sshd.common.util.logging">org.apache.sshd.common.util.logging.AbstractLoggingBean</a></li>
<li>
<ul class="inheritance">
<li>org.apache.sshd.common.util.io.ModifiableFileWatcher</li>
</ul>
</li>
</ul>
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<div class="description">
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<dl>
<dt>Direct Known Subclasses:</dt>
<dd><a href="../../../../../../org/apache/sshd/server/config/keys/AuthorizedKeysAuthenticator.html" title="class in org.apache.sshd.server.config.keys">AuthorizedKeysAuthenticator</a>, <a href="../../../../../../org/apache/sshd/client/config/keys/ClientIdentityFileWatcher.html" title="class in org.apache.sshd.client.config.keys">ClientIdentityFileWatcher</a>, <a href="../../../../../../org/apache/sshd/client/config/hosts/ConfigFileHostEntryResolver.html" title="class in org.apache.sshd.client.config.hosts">ConfigFileHostEntryResolver</a></dd>
</dl>
<hr>
<br>
<pre>public class <span class="typeNameLabel">ModifiableFileWatcher</span>
extends <a href="../../../../../../org/apache/sshd/common/util/logging/AbstractLoggingBean.html" title="class in org.apache.sshd.common.util.logging">AbstractLoggingBean</a></pre>
<div class="block">Watches over changes for a file and re-loads them if file has changed - including
if file is deleted or (re-)created</div>
<dl>
<dt><span class="simpleTagLabel">Author:</span></dt>
<dd><a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a></dd>
</dl>
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<!-- =========== FIELD SUMMARY =========== -->
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<h3>Field Summary</h3>
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<caption><span>Fields</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/LinkOption.html?is-external=true" title="class or interface in java.nio.file">LinkOption</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sshd/common/util/io/ModifiableFileWatcher.html#options">options</a></span></code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/attribute/PosixFilePermission.html?is-external=true" title="class or interface in java.nio.file.attribute">PosixFilePermission</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sshd/common/util/io/ModifiableFileWatcher.html#STRICTLY_PROHIBITED_FILE_PERMISSION">STRICTLY_PROHIBITED_FILE_PERMISSION</a></span></code>
<div class="block">The <a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util"><code>Set</code></a> of <a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/attribute/PosixFilePermission.html?is-external=true" title="class or interface in java.nio.file.attribute"><code>PosixFilePermission</code></a> <U>not</U> allowed if strict
permissions are enforced on key files</div>
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<h3>Fields inherited from class&nbsp;org.apache.sshd.common.util.logging.<a href="../../../../../../org/apache/sshd/common/util/logging/AbstractLoggingBean.html" title="class in org.apache.sshd.common.util.logging">AbstractLoggingBean</a></h3>
<code><a href="../../../../../../org/apache/sshd/common/util/logging/AbstractLoggingBean.html#log">log</a></code></li>
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<caption><span>Constructors</span><span class="tabEnd">&nbsp;</span></caption>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sshd/common/util/io/ModifiableFileWatcher.html#ModifiableFileWatcher-java.io.File-">ModifiableFileWatcher</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/File.html?is-external=true" title="class or interface in java.io">File</a>&nbsp;file)</code>&nbsp;</td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sshd/common/util/io/ModifiableFileWatcher.html#ModifiableFileWatcher-java.nio.file.Path-">ModifiableFileWatcher</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/Path.html?is-external=true" title="class or interface in java.nio.file">Path</a>&nbsp;file)</code>&nbsp;</td>
</tr>
<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sshd/common/util/io/ModifiableFileWatcher.html#ModifiableFileWatcher-java.nio.file.Path-java.nio.file.LinkOption...-">ModifiableFileWatcher</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/Path.html?is-external=true" title="class or interface in java.nio.file">Path</a>&nbsp;file,
<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/LinkOption.html?is-external=true" title="class or interface in java.nio.file">LinkOption</a>...&nbsp;options)</code>&nbsp;</td>
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<h3>Method Summary</h3>
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<caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd">&nbsp;</span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t2" class="tableTab"><span><a href="javascript:show(2);">Instance Methods</a></span><span class="tabEnd">&nbsp;</span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd">&nbsp;</span></span></caption>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
</tr>
<tr id="i0" class="altColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sshd/common/util/io/ModifiableFileWatcher.html#checkReloadRequired--">checkReloadRequired</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i1" class="rowColor">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sshd/common/util/io/ModifiableFileWatcher.html#exists--">exists</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i2" class="altColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/Path.html?is-external=true" title="class or interface in java.nio.file">Path</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sshd/common/util/io/ModifiableFileWatcher.html#getPath--">getPath</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i3" class="rowColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/attribute/FileTime.html?is-external=true" title="class or interface in java.nio.file.attribute">FileTime</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sshd/common/util/io/ModifiableFileWatcher.html#lastModified--">lastModified</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i4" class="altColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sshd/common/util/io/ModifiableFileWatcher.html#resetReloadAttributes--">resetReloadAttributes</a></span>()</code>
<div class="block">Resets the state attributes used to detect changes to the initial
construction values - i.e., file assumed not to exist and no known
size of modify time</div>
</td>
</tr>
<tr id="i5" class="rowColor">
<td class="colFirst"><code>long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sshd/common/util/io/ModifiableFileWatcher.html#size--">size</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i6" class="altColor">
<td class="colFirst"><code><a href="http://docs.oracle.com/javase/7/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/sshd/common/util/io/ModifiableFileWatcher.html#toString--">toString</a></span>()</code>&nbsp;</td>
</tr>
<tr id="i7" class="rowColor">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sshd/common/util/io/ModifiableFileWatcher.html#updateReloadAttributes--">updateReloadAttributes</a></span>()</code>
<div class="block">May be called to refresh the state attributes used to detect changes
e.g., file existence, size and last-modified time once re-loading is
successfully completed.</div>
</td>
</tr>
<tr id="i8" class="altColor">
<td class="colFirst"><code>static <a href="../../../../../../org/apache/sshd/common/util/Pair.html" title="class in org.apache.sshd.common.util">Pair</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../org/apache/sshd/common/util/io/ModifiableFileWatcher.html#validateStrictConfigFilePermissions-java.nio.file.Path-java.nio.file.LinkOption...-">validateStrictConfigFilePermissions</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/Path.html?is-external=true" title="class or interface in java.nio.file">Path</a>&nbsp;path,
<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/LinkOption.html?is-external=true" title="class or interface in java.nio.file">LinkOption</a>...&nbsp;options)</code>
<div class="block">Checks if a path has strict permissions</div>
</td>
</tr>
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<h3>Methods inherited from class&nbsp;java.lang.<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></h3>
<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#wait-long-int-" title="class or interface in java.lang">wait</a></code></li>
</ul>
</li>
</ul>
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</ul>
</div>
<div class="details">
<ul class="blockList">
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<!-- ============ FIELD DETAIL =========== -->
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<li class="blockList"><a name="field.detail">
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</a>
<h3>Field Detail</h3>
<a name="STRICTLY_PROHIBITED_FILE_PERMISSION">
<!-- -->
</a>
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<h4>STRICTLY_PROHIBITED_FILE_PERMISSION</h4>
<pre>public static final&nbsp;<a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/attribute/PosixFilePermission.html?is-external=true" title="class or interface in java.nio.file.attribute">PosixFilePermission</a>&gt; STRICTLY_PROHIBITED_FILE_PERMISSION</pre>
<div class="block">The <a href="http://docs.oracle.com/javase/7/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util"><code>Set</code></a> of <a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/attribute/PosixFilePermission.html?is-external=true" title="class or interface in java.nio.file.attribute"><code>PosixFilePermission</code></a> <U>not</U> allowed if strict
permissions are enforced on key files</div>
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</ul>
<a name="options">
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<ul class="blockListLast">
<li class="blockList">
<h4>options</h4>
<pre>protected final&nbsp;<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/LinkOption.html?is-external=true" title="class or interface in java.nio.file">LinkOption</a>[] options</pre>
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<h3>Constructor Detail</h3>
<a name="ModifiableFileWatcher-java.io.File-">
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<h4>ModifiableFileWatcher</h4>
<pre>public&nbsp;ModifiableFileWatcher(<a href="http://docs.oracle.com/javase/7/docs/api/java/io/File.html?is-external=true" title="class or interface in java.io">File</a>&nbsp;file)</pre>
</li>
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<a name="ModifiableFileWatcher-java.nio.file.Path-">
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<h4>ModifiableFileWatcher</h4>
<pre>public&nbsp;ModifiableFileWatcher(<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/Path.html?is-external=true" title="class or interface in java.nio.file">Path</a>&nbsp;file)</pre>
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<a name="ModifiableFileWatcher-java.nio.file.Path-java.nio.file.LinkOption...-">
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<h4>ModifiableFileWatcher</h4>
<pre>public&nbsp;ModifiableFileWatcher(<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/Path.html?is-external=true" title="class or interface in java.nio.file">Path</a>&nbsp;file,
<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/LinkOption.html?is-external=true" title="class or interface in java.nio.file">LinkOption</a>...&nbsp;options)</pre>
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<h3>Method Detail</h3>
<a name="getPath--">
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<h4>getPath</h4>
<pre>public final&nbsp;<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/Path.html?is-external=true" title="class or interface in java.nio.file">Path</a>&nbsp;getPath()</pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The watched <a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/Path.html?is-external=true" title="class or interface in java.nio.file"><code>Path</code></a></dd>
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<a name="exists--">
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<h4>exists</h4>
<pre>public final&nbsp;boolean&nbsp;exists()
throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<a name="size--">
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<h4>size</h4>
<pre>public final&nbsp;long&nbsp;size()
throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<h4>lastModified</h4>
<pre>public final&nbsp;<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/attribute/FileTime.html?is-external=true" title="class or interface in java.nio.file.attribute">FileTime</a>&nbsp;lastModified()
throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<h4>checkReloadRequired</h4>
<pre>public&nbsp;boolean&nbsp;checkReloadRequired()
throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<dl>
<dt><span class="returnLabel">Returns:</span></dt>
<dd><code>true</code> if the watched file has probably been changed</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - If failed to query file data</dd>
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<pre>public&nbsp;void&nbsp;resetReloadAttributes()</pre>
<div class="block">Resets the state attributes used to detect changes to the initial
construction values - i.e., file assumed not to exist and no known
size of modify time</div>
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<pre>public&nbsp;void&nbsp;updateReloadAttributes()
throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block">May be called to refresh the state attributes used to detect changes
e.g., file existence, size and last-modified time once re-loading is
successfully completed. If the file does not exist then the attributes
are reset to an &quot;unknown&quot; state.</div>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - If failed to access the file (if exists)</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../org/apache/sshd/common/util/io/ModifiableFileWatcher.html#resetReloadAttributes--"><code>resetReloadAttributes()</code></a></dd>
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<h4>toString</h4>
<pre>public&nbsp;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>&nbsp;toString()</pre>
<dl>
<dt><span class="overrideSpecifyLabel">Overrides:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a></code>&nbsp;in class&nbsp;<code><a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a></code></dd>
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<h4>validateStrictConfigFilePermissions</h4>
<pre>public static&nbsp;<a href="../../../../../../org/apache/sshd/common/util/Pair.html" title="class in org.apache.sshd.common.util">Pair</a>&lt;<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a>,<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/Object.html?is-external=true" title="class or interface in java.lang">Object</a>&gt;&nbsp;validateStrictConfigFilePermissions(<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/Path.html?is-external=true" title="class or interface in java.nio.file">Path</a>&nbsp;path,
<a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/LinkOption.html?is-external=true" title="class or interface in java.nio.file">LinkOption</a>...&nbsp;options)
throws <a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block"><P>Checks if a path has strict permissions</P>
<UL>
<LI><P>
(For <code>Unix</code>) The path may not have group or others write permissions
</P></LI>
<LI><P>
The path must be owned by current user.
</P></LI>
<LI><P>
(For <code>Unix</code>) The path may be owned by root.
</P></LI>
</UL></div>
<dl>
<dt><span class="paramLabel">Parameters:</span></dt>
<dd><code>path</code> - The <a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/Path.html?is-external=true" title="class or interface in java.nio.file"><code>Path</code></a> to be checked - ignored if <code>null</code>
or does not exist</dd>
<dd><code>options</code> - The <a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/LinkOption.html?is-external=true" title="class or interface in java.nio.file"><code>LinkOption</code></a>s to use to query the file's permissions</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>The violated permission as <a href="../../../../../../org/apache/sshd/common/util/Pair.html" title="class in org.apache.sshd.common.util"><code>Pair</code></a> first is a message second is
offending object <a href="http://docs.oracle.com/javase/7/docs/api/java/nio/file/attribute/PosixFilePermission.html?is-external=true" title="class or interface in java.nio.file.attribute"><code>PosixFilePermission</code></a> or <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang"><code>String</code></a> for owner - <code>null</code> if
no violations detected</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="http://docs.oracle.com/javase/7/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - If failed to retrieve the permissions</dd>
<dt><span class="seeLabel">See Also:</span></dt>
<dd><a href="../../../../../../org/apache/sshd/common/util/io/ModifiableFileWatcher.html#STRICTLY_PROHIBITED_FILE_PERMISSION"><code>STRICTLY_PROHIBITED_FILE_PERMISSION</code></a></dd>
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