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<div class="subTitle">org.apache.sysds.runtime.util</div>
<h2 title="Class HDFSTool" class="title">Class HDFSTool</h2>
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<pre>public class <span class="typeNameLabel">HDFSTool</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>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#DFS_BLOCKSIZE">DFS_BLOCKSIZE</a></span></code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#DFS_PERMISSIONS_ENABLED">DFS_PERMISSIONS_ENABLED</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#DFS_REPLICATION">DFS_REPLICATION</a></span></code>&nbsp;</td>
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<tr class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#FS_DEFAULTFS">FS_DEFAULTFS</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#IO_FILE_BUFFER_SIZE">IO_FILE_BUFFER_SIZE</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#IO_SERIALIZATIONS">IO_SERIALIZATIONS</a></span></code>&nbsp;</td>
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<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#USE_BINARYBLOCK_SERIALIZATION">USE_BINARYBLOCK_SERIALIZATION</a></span></code>&nbsp;</td>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#HDFSTool--">HDFSTool</a></span>()</code>&nbsp;</td>
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<td class="colFirst"><code>static void</code></td>
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<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#copyFileOnHDFS-java.lang.String-java.lang.String-">copyFileOnHDFS</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;originalDir,
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<tr id="i2" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#createDirIfNotExistOnHDFS-org.apache.hadoop.fs.Path-java.lang.String-">createDirIfNotExistOnHDFS</a></span>(org.apache.hadoop.fs.Path&nbsp;path,
<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;permissions)</code>&nbsp;</td>
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<tr id="i3" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#createDirIfNotExistOnHDFS-java.lang.String-java.lang.String-">createDirIfNotExistOnHDFS</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;dir,
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<tr id="i4" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#deleteFileIfExistOnHDFS-org.apache.hadoop.fs.Path-org.apache.hadoop.mapred.JobConf-">deleteFileIfExistOnHDFS</a></span>(org.apache.hadoop.fs.Path&nbsp;outpath,
org.apache.hadoop.mapred.JobConf&nbsp;job)</code>&nbsp;</td>
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<tr id="i5" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#deleteFileIfExistOnHDFS-java.lang.String-">deleteFileIfExistOnHDFS</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;dir)</code>&nbsp;</td>
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<tr id="i6" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#deleteFileIfExistOnLFS-org.apache.hadoop.fs.Path-org.apache.hadoop.mapred.JobConf-">deleteFileIfExistOnLFS</a></span>(org.apache.hadoop.fs.Path&nbsp;outpath,
org.apache.hadoop.mapred.JobConf&nbsp;job)</code>&nbsp;</td>
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<tr id="i7" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#deleteFileWithMTDIfExistOnHDFS-java.lang.String-">deleteFileWithMTDIfExistOnHDFS</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;fname)</code>&nbsp;</td>
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<tr id="i8" class="altColor">
<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#estimateNnzBasedOnFileSize-org.apache.hadoop.fs.Path-long-long-int-double-">estimateNnzBasedOnFileSize</a></span>(org.apache.hadoop.fs.Path&nbsp;path,
long&nbsp;rlen,
long&nbsp;clen,
int&nbsp;blen,
double&nbsp;factor)</code>&nbsp;</td>
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<tr id="i9" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#existsFileOnHDFS-java.lang.String-">existsFileOnHDFS</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;fname)</code>&nbsp;</td>
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<tr id="i10" class="altColor">
<td class="colFirst"><code>static org.apache.hadoop.fs.FileStatus[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#getDirectoryListing-java.lang.String-">getDirectoryListing</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;fname)</code>&nbsp;</td>
</tr>
<tr id="i11" class="rowColor">
<td class="colFirst"><code>static long</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#getFilesizeOnHDFS-org.apache.hadoop.fs.Path-">getFilesizeOnHDFS</a></span>(org.apache.hadoop.fs.Path&nbsp;path)</code>
<div class="block">Returns the size of a file or directory on hdfs in bytes.</div>
</td>
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<tr id="i12" class="altColor">
<td class="colFirst"><code>static org.apache.hadoop.fs.FSDataOutputStream</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#getHDFSDataOutputStream-java.lang.String-boolean-">getHDFSDataOutputStream</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;filename,
boolean&nbsp;overwrite)</code>&nbsp;</td>
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<tr id="i13" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
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<tr id="i14" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#isFileEmpty-org.apache.hadoop.fs.FileSystem-org.apache.hadoop.fs.Path-">isFileEmpty</a></span>(org.apache.hadoop.fs.FileSystem&nbsp;fs,
org.apache.hadoop.fs.Path&nbsp;dir)</code>&nbsp;</td>
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<tr id="i15" class="rowColor">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#isHDFSFileEmpty-java.lang.String-">isHDFSFileEmpty</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;dir)</code>&nbsp;</td>
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<tr id="i16" class="altColor">
<td class="colFirst"><code>static void</code></td>
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<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;newFile)</code>&nbsp;</td>
</tr>
<tr id="i17" class="rowColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#metaDataToString-org.apache.sysds.common.Types.ValueType-org.apache.sysds.common.Types.ValueType:A-org.apache.sysds.common.Types.DataType-org.apache.sysds.runtime.meta.DataCharacteristics-org.apache.sysds.common.Types.FileFormat-org.apache.sysds.runtime.io.FileFormatProperties-org.apache.sysds.runtime.privacy.PrivacyConstraint-">metaDataToString</a></span>(<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
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<tr id="i18" class="altColor">
<td class="colFirst"><code>static boolean</code></td>
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<tr id="i19" class="rowColor">
<td class="colFirst"><code>static double[]</code></td>
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<tr id="i20" class="altColor">
<td class="colFirst"><code>static double</code></td>
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<tr id="i21" class="rowColor">
<td class="colFirst"><code>static long</code></td>
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<tr id="i22" class="altColor">
<td class="colFirst"><code>static double[][]</code></td>
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<tr id="i23" class="rowColor">
<td class="colFirst"><code>static <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></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#readObjectFromHDFSFile-java.lang.String-org.apache.sysds.common.Types.ValueType-">readObjectFromHDFSFile</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;filename,
<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt)</code>&nbsp;</td>
</tr>
<tr id="i24" class="altColor">
<td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/String.html?is-external=true" title="class or interface in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#readStringFromHDFSFile-java.lang.String-">readStringFromHDFSFile</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;filename)</code>&nbsp;</td>
</tr>
<tr id="i25" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#renameFileOnHDFS-java.lang.String-java.lang.String-">renameFileOnHDFS</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;originalDir,
<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;newDir)</code>&nbsp;</td>
</tr>
<tr id="i26" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#writeBooleanToHDFS-boolean-java.lang.String-">writeBooleanToHDFS</a></span>(boolean&nbsp;b,
<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;filename)</code>&nbsp;</td>
</tr>
<tr id="i27" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#writeDoubleToHDFS-double-java.lang.String-">writeDoubleToHDFS</a></span>(double&nbsp;d,
<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;filename)</code>&nbsp;</td>
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<tr id="i28" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#writeIntToHDFS-long-java.lang.String-">writeIntToHDFS</a></span>(long&nbsp;i,
<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;filename)</code>&nbsp;</td>
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<tr id="i29" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#writeMetaDataFile-java.lang.String-org.apache.sysds.common.Types.ValueType-org.apache.sysds.runtime.meta.DataCharacteristics-org.apache.sysds.common.Types.FileFormat-">writeMetaDataFile</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;mtdfile,
<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<a href="../../../../../org/apache/sysds/runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;mc,
<a href="../../../../../org/apache/sysds/common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt)</code>&nbsp;</td>
</tr>
<tr id="i30" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#writeMetaDataFile-java.lang.String-org.apache.sysds.common.Types.ValueType-org.apache.sysds.runtime.meta.DataCharacteristics-org.apache.sysds.common.Types.FileFormat-org.apache.sysds.runtime.io.FileFormatProperties-">writeMetaDataFile</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;mtdfile,
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<a href="../../../../../org/apache/sysds/runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;dc,
<a href="../../../../../org/apache/sysds/common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt,
<a href="../../../../../org/apache/sysds/runtime/io/FileFormatProperties.html" title="class in org.apache.sysds.runtime.io">FileFormatProperties</a>&nbsp;formatProperties)</code>&nbsp;</td>
</tr>
<tr id="i31" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#writeMetaDataFile-java.lang.String-org.apache.sysds.common.Types.ValueType-org.apache.sysds.runtime.meta.DataCharacteristics-org.apache.sysds.common.Types.FileFormat-org.apache.sysds.runtime.io.FileFormatProperties-org.apache.sysds.runtime.privacy.PrivacyConstraint-">writeMetaDataFile</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;mtdfile,
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<a href="../../../../../org/apache/sysds/runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;dc,
<a href="../../../../../org/apache/sysds/common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt,
<a href="../../../../../org/apache/sysds/runtime/io/FileFormatProperties.html" title="class in org.apache.sysds.runtime.io">FileFormatProperties</a>&nbsp;formatProperties,
<a href="../../../../../org/apache/sysds/runtime/privacy/PrivacyConstraint.html" title="class in org.apache.sysds.runtime.privacy">PrivacyConstraint</a>&nbsp;privacyConstraint)</code>&nbsp;</td>
</tr>
<tr id="i32" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#writeMetaDataFile-java.lang.String-org.apache.sysds.common.Types.ValueType-org.apache.sysds.runtime.meta.DataCharacteristics-org.apache.sysds.common.Types.FileFormat-org.apache.sysds.runtime.privacy.PrivacyConstraint-">writeMetaDataFile</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;mtdfile,
<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<a href="../../../../../org/apache/sysds/runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;mc,
<a href="../../../../../org/apache/sysds/common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt,
<a href="../../../../../org/apache/sysds/runtime/privacy/PrivacyConstraint.html" title="class in org.apache.sysds.runtime.privacy">PrivacyConstraint</a>&nbsp;privacyConstraint)</code>&nbsp;</td>
</tr>
<tr id="i33" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#writeMetaDataFile-java.lang.String-org.apache.sysds.common.Types.ValueType-org.apache.sysds.common.Types.ValueType:A-org.apache.sysds.common.Types.DataType-org.apache.sysds.runtime.meta.DataCharacteristics-org.apache.sysds.common.Types.FileFormat-">writeMetaDataFile</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;mtdfile,
<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>[]&nbsp;schema,
<a href="../../../../../org/apache/sysds/common/Types.DataType.html" title="enum in org.apache.sysds.common">Types.DataType</a>&nbsp;dt,
<a href="../../../../../org/apache/sysds/runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;mc,
<a href="../../../../../org/apache/sysds/common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt)</code>&nbsp;</td>
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<tr id="i34" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#writeMetaDataFile-java.lang.String-org.apache.sysds.common.Types.ValueType-org.apache.sysds.common.Types.ValueType:A-org.apache.sysds.common.Types.DataType-org.apache.sysds.runtime.meta.DataCharacteristics-org.apache.sysds.common.Types.FileFormat-org.apache.sysds.runtime.io.FileFormatProperties-">writeMetaDataFile</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;mtdfile,
<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>[]&nbsp;schema,
<a href="../../../../../org/apache/sysds/common/Types.DataType.html" title="enum in org.apache.sysds.common">Types.DataType</a>&nbsp;dt,
<a href="../../../../../org/apache/sysds/runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;dc,
<a href="../../../../../org/apache/sysds/common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt,
<a href="../../../../../org/apache/sysds/runtime/io/FileFormatProperties.html" title="class in org.apache.sysds.runtime.io">FileFormatProperties</a>&nbsp;formatProperties)</code>&nbsp;</td>
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<tr id="i35" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#writeMetaDataFile-java.lang.String-org.apache.sysds.common.Types.ValueType-org.apache.sysds.common.Types.ValueType:A-org.apache.sysds.common.Types.DataType-org.apache.sysds.runtime.meta.DataCharacteristics-org.apache.sysds.common.Types.FileFormat-org.apache.sysds.runtime.io.FileFormatProperties-org.apache.sysds.runtime.privacy.PrivacyConstraint-">writeMetaDataFile</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;mtdfile,
<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>[]&nbsp;schema,
<a href="../../../../../org/apache/sysds/common/Types.DataType.html" title="enum in org.apache.sysds.common">Types.DataType</a>&nbsp;dt,
<a href="../../../../../org/apache/sysds/runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;dc,
<a href="../../../../../org/apache/sysds/common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt,
<a href="../../../../../org/apache/sysds/runtime/io/FileFormatProperties.html" title="class in org.apache.sysds.runtime.io">FileFormatProperties</a>&nbsp;formatProperties,
<a href="../../../../../org/apache/sysds/runtime/privacy/PrivacyConstraint.html" title="class in org.apache.sysds.runtime.privacy">PrivacyConstraint</a>&nbsp;privacyConstraint)</code>&nbsp;</td>
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<tr id="i36" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#writeMetaDataFile-java.lang.String-org.apache.sysds.common.Types.ValueType-org.apache.sysds.common.Types.ValueType:A-org.apache.sysds.common.Types.DataType-org.apache.sysds.runtime.meta.DataCharacteristics-org.apache.sysds.common.Types.FileFormat-org.apache.sysds.runtime.privacy.PrivacyConstraint-">writeMetaDataFile</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;mtdfile,
<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
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<a href="../../../../../org/apache/sysds/common/Types.DataType.html" title="enum in org.apache.sysds.common">Types.DataType</a>&nbsp;dt,
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<a href="../../../../../org/apache/sysds/common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt,
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<tr id="i37" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#writeObjectToHDFS-java.lang.Object-java.lang.String-">writeObjectToHDFS</a></span>(<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>&nbsp;obj,
<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;filename)</code>&nbsp;</td>
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<tr id="i38" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#writeScalarMetaDataFile-java.lang.String-org.apache.sysds.common.Types.ValueType-">writeScalarMetaDataFile</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;mtdfile,
<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt)</code>&nbsp;</td>
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<tr id="i39" class="rowColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#writeScalarMetaDataFile-java.lang.String-org.apache.sysds.common.Types.ValueType-org.apache.sysds.runtime.privacy.PrivacyConstraint-">writeScalarMetaDataFile</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;mtdfile,
<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<a href="../../../../../org/apache/sysds/runtime/privacy/PrivacyConstraint.html" title="class in org.apache.sysds.runtime.privacy">PrivacyConstraint</a>&nbsp;privacyConstraint)</code>&nbsp;</td>
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<tr id="i40" class="altColor">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../../../../org/apache/sysds/runtime/util/HDFSTool.html#writeStringToHDFS-java.lang.String-java.lang.String-">writeStringToHDFS</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,
<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;filename)</code>&nbsp;</td>
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<pre>public static&nbsp;boolean&nbsp;existsFileOnHDFS(<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;fname)</pre>
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<pre>public static&nbsp;org.apache.hadoop.fs.FileStatus[]&nbsp;getDirectoryListing(<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;fname)</pre>
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<pre>public static&nbsp;void&nbsp;deleteFileWithMTDIfExistOnHDFS(<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;fname)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<pre>public static&nbsp;void&nbsp;deleteFileIfExistOnHDFS(<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;dir)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<pre>public static&nbsp;void&nbsp;deleteFileIfExistOnHDFS(org.apache.hadoop.fs.Path&nbsp;outpath,
org.apache.hadoop.mapred.JobConf&nbsp;job)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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<pre>public static&nbsp;void&nbsp;deleteFileIfExistOnLFS(org.apache.hadoop.fs.Path&nbsp;outpath,
org.apache.hadoop.mapred.JobConf&nbsp;job)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<pre>public static&nbsp;boolean&nbsp;isFileEmpty(org.apache.hadoop.fs.FileSystem&nbsp;fs,
org.apache.hadoop.fs.Path&nbsp;dir)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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<pre>public static&nbsp;void&nbsp;renameFileOnHDFS(<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;originalDir,
<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;newDir)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/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 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;newFile)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<pre>public static&nbsp;void&nbsp;copyFileOnHDFS(<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;originalDir,
<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;newDir)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<pre>public static&nbsp;long&nbsp;estimateNnzBasedOnFileSize(org.apache.hadoop.fs.Path&nbsp;path,
long&nbsp;rlen,
long&nbsp;clen,
int&nbsp;blen,
double&nbsp;factor)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
<div class="block">Returns the size of a file or directory on hdfs in bytes.</div>
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<dd><code>path</code> - file system path</dd>
<dt><span class="returnLabel">Returns:</span></dt>
<dd>file size</dd>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code> - if IOException occurs</dd>
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throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/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 href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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<dd><code><a href="https://docs.oracle.com/javase/8/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 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;filename)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/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 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;filename)
throws <a href="https://docs.oracle.com/javase/8/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="https://docs.oracle.com/javase/8/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 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;filename)
throws <a href="https://docs.oracle.com/javase/8/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="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<pre>public static&nbsp;void&nbsp;writeStringToHDFS(<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,
<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;filename)
throws <a href="https://docs.oracle.com/javase/8/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="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<pre>public static&nbsp;void&nbsp;writeObjectToHDFS(<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>&nbsp;obj,
<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;filename)
throws <a href="https://docs.oracle.com/javase/8/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="https://docs.oracle.com/javase/8/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 href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<a href="../../../../../org/apache/sysds/runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;mc,
<a href="../../../../../org/apache/sysds/common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt)
throws <a href="https://docs.oracle.com/javase/8/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="https://docs.oracle.com/javase/8/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 href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<a href="../../../../../org/apache/sysds/runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;mc,
<a href="../../../../../org/apache/sysds/common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt,
<a href="../../../../../org/apache/sysds/runtime/privacy/PrivacyConstraint.html" title="class in org.apache.sysds.runtime.privacy">PrivacyConstraint</a>&nbsp;privacyConstraint)
throws <a href="https://docs.oracle.com/javase/8/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="https://docs.oracle.com/javase/8/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 href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>[]&nbsp;schema,
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<a href="../../../../../org/apache/sysds/common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt)
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<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>[]&nbsp;schema,
<a href="../../../../../org/apache/sysds/common/Types.DataType.html" title="enum in org.apache.sysds.common">Types.DataType</a>&nbsp;dt,
<a href="../../../../../org/apache/sysds/runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;mc,
<a href="../../../../../org/apache/sysds/common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt,
<a href="../../../../../org/apache/sysds/runtime/privacy/PrivacyConstraint.html" title="class in org.apache.sysds.runtime.privacy">PrivacyConstraint</a>&nbsp;privacyConstraint)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/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 href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<a href="../../../../../org/apache/sysds/runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;dc,
<a href="../../../../../org/apache/sysds/common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt,
<a href="../../../../../org/apache/sysds/runtime/io/FileFormatProperties.html" title="class in org.apache.sysds.runtime.io">FileFormatProperties</a>&nbsp;formatProperties)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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<dd><code><a href="https://docs.oracle.com/javase/8/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 href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<a href="../../../../../org/apache/sysds/runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;dc,
<a href="../../../../../org/apache/sysds/common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt,
<a href="../../../../../org/apache/sysds/runtime/io/FileFormatProperties.html" title="class in org.apache.sysds.runtime.io">FileFormatProperties</a>&nbsp;formatProperties,
<a href="../../../../../org/apache/sysds/runtime/privacy/PrivacyConstraint.html" title="class in org.apache.sysds.runtime.privacy">PrivacyConstraint</a>&nbsp;privacyConstraint)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/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 href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>[]&nbsp;schema,
<a href="../../../../../org/apache/sysds/common/Types.DataType.html" title="enum in org.apache.sysds.common">Types.DataType</a>&nbsp;dt,
<a href="../../../../../org/apache/sysds/runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;dc,
<a href="../../../../../org/apache/sysds/common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt,
<a href="../../../../../org/apache/sysds/runtime/io/FileFormatProperties.html" title="class in org.apache.sysds.runtime.io">FileFormatProperties</a>&nbsp;formatProperties)
throws <a href="https://docs.oracle.com/javase/8/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="https://docs.oracle.com/javase/8/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 href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>[]&nbsp;schema,
<a href="../../../../../org/apache/sysds/common/Types.DataType.html" title="enum in org.apache.sysds.common">Types.DataType</a>&nbsp;dt,
<a href="../../../../../org/apache/sysds/runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;dc,
<a href="../../../../../org/apache/sysds/common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt,
<a href="../../../../../org/apache/sysds/runtime/io/FileFormatProperties.html" title="class in org.apache.sysds.runtime.io">FileFormatProperties</a>&nbsp;formatProperties,
<a href="../../../../../org/apache/sysds/runtime/privacy/PrivacyConstraint.html" title="class in org.apache.sysds.runtime.privacy">PrivacyConstraint</a>&nbsp;privacyConstraint)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/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 href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt)
throws <a href="https://docs.oracle.com/javase/8/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="https://docs.oracle.com/javase/8/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 href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<a href="../../../../../org/apache/sysds/runtime/privacy/PrivacyConstraint.html" title="class in org.apache.sysds.runtime.privacy">PrivacyConstraint</a>&nbsp;privacyConstraint)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></pre>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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<pre>public static&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;metaDataToString(<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>&nbsp;vt,
<a href="../../../../../org/apache/sysds/common/Types.ValueType.html" title="enum in org.apache.sysds.common">Types.ValueType</a>[]&nbsp;schema,
<a href="../../../../../org/apache/sysds/common/Types.DataType.html" title="enum in org.apache.sysds.common">Types.DataType</a>&nbsp;dt,
<a href="../../../../../org/apache/sysds/runtime/meta/DataCharacteristics.html" title="class in org.apache.sysds.runtime.meta">DataCharacteristics</a>&nbsp;dc,
<a href="../../../../../org/apache/sysds/common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt,
<a href="../../../../../org/apache/sysds/runtime/io/FileFormatProperties.html" title="class in org.apache.sysds.runtime.io">FileFormatProperties</a>&nbsp;formatProperties,
<a href="../../../../../org/apache/sysds/runtime/privacy/PrivacyConstraint.html" title="class in org.apache.sysds.runtime.privacy">PrivacyConstraint</a>&nbsp;privacyConstraint)
throws org.apache.wink.json4j.JSONException,
<a href="../../../../../org/apache/sysds/runtime/DMLRuntimeException.html" title="class in org.apache.sysds.runtime">DMLRuntimeException</a></pre>
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<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code>org.apache.wink.json4j.JSONException</code></dd>
<dd><code><a href="../../../../../org/apache/sysds/runtime/DMLRuntimeException.html" title="class in org.apache.sysds.runtime">DMLRuntimeException</a></code></dd>
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<a href="../../../../../org/apache/sysds/common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt,
long&nbsp;rlen,
long&nbsp;clen,
int&nbsp;blen)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a>,
<a href="../../../../../org/apache/sysds/runtime/DMLRuntimeException.html" title="class in org.apache.sysds.runtime">DMLRuntimeException</a></pre>
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<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
<dd><code><a href="../../../../../org/apache/sysds/runtime/DMLRuntimeException.html" title="class in org.apache.sysds.runtime">DMLRuntimeException</a></code></dd>
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<a href="../../../../../org/apache/sysds/common/Types.FileFormat.html" title="enum in org.apache.sysds.common">Types.FileFormat</a>&nbsp;fmt,
long&nbsp;rlen,
long&nbsp;clen,
int&nbsp;blen)
throws <a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a>,
<a href="../../../../../org/apache/sysds/runtime/DMLRuntimeException.html" title="class in org.apache.sysds.runtime">DMLRuntimeException</a></pre>
<dl>
<dt><span class="throwsLabel">Throws:</span></dt>
<dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
<dd><code><a href="../../../../../org/apache/sysds/runtime/DMLRuntimeException.html" title="class in org.apache.sysds.runtime">DMLRuntimeException</a></code></dd>
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<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;permissions)
throws <a href="https://docs.oracle.com/javase/8/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="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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throws <a href="https://docs.oracle.com/javase/8/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="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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boolean&nbsp;overwrite)
throws <a href="https://docs.oracle.com/javase/8/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="https://docs.oracle.com/javase/8/docs/api/java/io/IOException.html?is-external=true" title="class or interface in java.io">IOException</a></code></dd>
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