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<div class="subTitle">org.apache.commons.compress.compressors.lzma</div>
<h2 title="Class LZMAUtils" class="title">Class LZMAUtils</h2>
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<pre>public class <a href="../../../../../../src-html/org/apache/commons/compress/compressors/lzma/LZMAUtils.html#line.30">LZMAUtils</a>
extends <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></pre>
<div class="block">Utility code for the lzma compression format.</div>
<dl><dt><span class="strong">Since:</span></dt>
  <dd>1.10</dd>
<dt><span class="strong">This class is thread-safe</span></dt>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code>static <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><strong><a href="../../../../../../org/apache/commons/compress/compressors/lzma/LZMAUtils.html#getCompressedFilename(java.lang.String)">getCompressedFilename</a></strong>(<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;filename)</code>
<div class="block">Maps the given filename to the name that the file should have after
 compression with lzma.</div>
</td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static <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><strong><a href="../../../../../../org/apache/commons/compress/compressors/lzma/LZMAUtils.html#getUncompressedFilename(java.lang.String)">getUncompressedFilename</a></strong>(<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;filename)</code>
<div class="block">Maps the given name of a lzma-compressed file to the name that
 the file should have after uncompression.</div>
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<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/compress/compressors/lzma/LZMAUtils.html#isCompressedFilename(java.lang.String)">isCompressedFilename</a></strong>(<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;filename)</code>
<div class="block">Detects common lzma suffixes in the given filename.</div>
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<tr class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/compress/compressors/lzma/LZMAUtils.html#isLZMACompressionAvailable()">isLZMACompressionAvailable</a></strong>()</code>
<div class="block">Are the classes required to support LZMA compression available?</div>
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<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/compress/compressors/lzma/LZMAUtils.html#matches(byte[],%20int)">matches</a></strong>(byte[]&nbsp;signature,
              int&nbsp;length)</code>
<div class="block">Checks if the signature matches what is expected for a .lzma file.</div>
</td>
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<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><strong><a href="../../../../../../org/apache/commons/compress/compressors/lzma/LZMAUtils.html#setCacheLZMAAvailablity(boolean)">setCacheLZMAAvailablity</a></strong>(boolean&nbsp;doCache)</code>
<div class="block">Whether to cache the result of the LZMA check.</div>
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<h4>matches</h4>
<pre>public static&nbsp;boolean&nbsp;<a href="../../../../../../src-html/org/apache/commons/compress/compressors/lzma/LZMAUtils.html#line.71">matches</a>(byte[]&nbsp;signature,
              int&nbsp;length)</pre>
<div class="block">Checks if the signature matches what is expected for a .lzma file.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>signature</code> - the bytes to check</dd><dd><code>length</code> - the number of bytes to check</dd>
<dt><span class="strong">Returns:</span></dt><dd>true if signature matches the .lzma magic bytes, false otherwise</dd></dl>
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<h4>isLZMACompressionAvailable</h4>
<pre>public static&nbsp;boolean&nbsp;<a href="../../../../../../src-html/org/apache/commons/compress/compressors/lzma/LZMAUtils.html#line.90">isLZMACompressionAvailable</a>()</pre>
<div class="block">Are the classes required to support LZMA compression available?</div>
<dl><dt><span class="strong">Returns:</span></dt><dd>true if the classes required to support LZMA
 compression are available</dd></dl>
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<h4>isCompressedFilename</h4>
<pre>public static&nbsp;boolean&nbsp;<a href="../../../../../../src-html/org/apache/commons/compress/compressors/lzma/LZMAUtils.html#line.114">isCompressedFilename</a>(<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;filename)</pre>
<div class="block">Detects common lzma suffixes in the given filename.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>filename</code> - name of a file</dd>
<dt><span class="strong">Returns:</span></dt><dd><code>true</code> if the filename has a common lzma suffix,
         <code>false</code> otherwise</dd></dl>
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<h4>getUncompressedFilename</h4>
<pre>public static&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;<a href="../../../../../../src-html/org/apache/commons/compress/compressors/lzma/LZMAUtils.html#line.128">getUncompressedFilename</a>(<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;filename)</pre>
<div class="block">Maps the given name of a lzma-compressed file to the name that
 the file should have after uncompression.  Any filenames with
 the generic ".lzma" suffix (or any other generic lzma suffix)
 is mapped to a name without that suffix. If no lzma suffix is
 detected, then the filename is returned unmapped.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>filename</code> - name of a file</dd>
<dt><span class="strong">Returns:</span></dt><dd>name of the corresponding uncompressed file</dd></dl>
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<h4>getCompressedFilename</h4>
<pre>public static&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;<a href="../../../../../../src-html/org/apache/commons/compress/compressors/lzma/LZMAUtils.html#line.139">getCompressedFilename</a>(<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;filename)</pre>
<div class="block">Maps the given filename to the name that the file should have after
 compression with lzma.</div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>filename</code> - name of a file</dd>
<dt><span class="strong">Returns:</span></dt><dd>name of the corresponding compressed file</dd></dl>
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<h4>setCacheLZMAAvailablity</h4>
<pre>public static&nbsp;void&nbsp;<a href="../../../../../../src-html/org/apache/commons/compress/compressors/lzma/LZMAUtils.html#line.149">setCacheLZMAAvailablity</a>(boolean&nbsp;doCache)</pre>
<div class="block">Whether to cache the result of the LZMA check.

 <p>This defaults to <code>false</code> in an OSGi environment and <code>true</code> otherwise.</p></div>
<dl><dt><span class="strong">Parameters:</span></dt><dd><code>doCache</code> - whether to cache the result</dd></dl>
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