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| <li><a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/FileMetadataCollector.html" title="class in org.apache.drill.exec.store.parquet.metadata"><span class="typeNameLink">Prev Class</span></a></li> |
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| <li>Summary: </li> |
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| <li>Constr | </li> |
| <li><a href="#method.summary">Method</a></li> |
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| <li>Detail: </li> |
| <li><a href="#field.detail">Field</a> | </li> |
| <li>Constr | </li> |
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| <div class="subTitle">org.apache.drill.exec.store.parquet.metadata</div> |
| <h2 title="Class Metadata" class="title">Class Metadata</h2> |
| </div> |
| <div class="contentContainer"> |
| <ul class="inheritance"> |
| <li><a href="https://docs.oracle.com/javase/8/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>org.apache.drill.exec.store.parquet.metadata.Metadata</li> |
| </ul> |
| </li> |
| </ul> |
| <div class="description"> |
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| <br> |
| <pre>public class <span class="typeNameLabel">Metadata</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">This is an utility class, holder for Parquet Table Metadata and <a href="../../../../../../../org/apache/drill/exec/store/parquet/ParquetReaderConfig.html" title="class in org.apache.drill.exec.store.parquet"><code>ParquetReaderConfig</code></a>. All the creation of |
| parquet metadata cache using create api's are forced to happen using the process user since only that user will have |
| write permission for the cache file</div> |
| </li> |
| </ul> |
| </div> |
| <div class="summary"> |
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| <caption><span>Fields</span><span class="tabEnd"> </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>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/drill/exec/store/parquet/metadata/Metadata.html#CURRENT_METADATA_FILENAMES">CURRENT_METADATA_FILENAMES</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata.html#DEFAULT_NULL_COUNT">DEFAULT_NULL_COUNT</a></span></code> </td> |
| </tr> |
| <tr 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/drill/exec/store/parquet/metadata/Metadata.html#METADATA_DIRECTORIES_FILENAME">METADATA_DIRECTORIES_FILENAME</a></span></code> </td> |
| </tr> |
| <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/drill/exec/store/parquet/metadata/Metadata.html#METADATA_FILENAME">METADATA_FILENAME</a></span></code> </td> |
| </tr> |
| <tr 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/drill/exec/store/parquet/metadata/Metadata.html#METADATA_SUMMARY_FILENAME">METADATA_SUMMARY_FILENAME</a></span></code> </td> |
| </tr> |
| <tr class="rowColor"> |
| <td class="colFirst"><code>static <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Long.html?is-external=true" title="class or interface in java.lang">Long</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata.html#NULL_COUNT_NOT_EXISTS">NULL_COUNT_NOT_EXISTS</a></span></code> </td> |
| </tr> |
| <tr 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/drill/exec/store/parquet/metadata/Metadata.html#OLD_METADATA_FILENAME">OLD_METADATA_FILENAME</a></span></code> </td> |
| </tr> |
| <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/drill/exec/store/parquet/metadata/Metadata.html#OLD_METADATA_FILENAMES">OLD_METADATA_FILENAMES</a></span></code> </td> |
| </tr> |
| </table> |
| </li> |
| </ul> |
| <!-- ========== METHOD SUMMARY =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="method.summary"> |
| <!-- --> |
| </a> |
| <h3>Method Summary</h3> |
| <table class="memberSummary" border="0" cellpadding="3" cellspacing="0" summary="Method Summary table, listing methods, and an explanation"> |
| <caption><span id="t0" class="activeTableTab"><span>All Methods</span><span class="tabEnd"> </span></span><span id="t1" class="tableTab"><span><a href="javascript:show(1);">Static Methods</a></span><span class="tabEnd"> </span></span><span id="t4" class="tableTab"><span><a href="javascript:show(8);">Concrete Methods</a></span><span class="tabEnd"> </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>static void</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata.html#createMeta-org.apache.hadoop.fs.FileSystem-org.apache.hadoop.fs.Path-org.apache.drill.exec.store.parquet.ParquetReaderConfig-boolean-java.util.Set-">createMeta</a></span>(org.apache.hadoop.fs.FileSystem fs, |
| org.apache.hadoop.fs.Path path, |
| <a href="../../../../../../../org/apache/drill/exec/store/parquet/ParquetReaderConfig.html" title="class in org.apache.drill.exec.store.parquet">ParquetReaderConfig</a> readerConfig, |
| boolean allColumnsInteresting, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="../../../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a>> columnSet)</code> |
| <div class="block">Create the parquet metadata file for the directory at the given path, and for any subdirectories.</div> |
| </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static org.apache.hadoop.fs.Path</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata.html#getDirFileName-org.apache.hadoop.fs.Path-">getDirFileName</a></span>(org.apache.hadoop.fs.Path metadataParentDir)</code> </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata_V4.ParquetFileAndRowCountMetadata.html" title="class in org.apache.drill.exec.store.parquet.metadata">Metadata_V4.ParquetFileAndRowCountMetadata</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata.html#getParquetFileMetadata_v4-org.apache.drill.exec.store.parquet.metadata.Metadata_V4.ParquetTableMetadata_v4-org.apache.parquet.hadoop.metadata.ParquetMetadata-org.apache.hadoop.fs.FileStatus-org.apache.hadoop.fs.FileSystem-boolean-boolean-java.util.Set-org.apache.drill.exec.store.parquet.ParquetReaderConfig-">getParquetFileMetadata_v4</a></span>(<a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata_V4.ParquetTableMetadata_v4.html" title="class in org.apache.drill.exec.store.parquet.metadata">Metadata_V4.ParquetTableMetadata_v4</a> parquetTableMetadata, |
| org.apache.parquet.hadoop.metadata.ParquetMetadata footer, |
| org.apache.hadoop.fs.FileStatus file, |
| org.apache.hadoop.fs.FileSystem fs, |
| boolean allColumnsInteresting, |
| boolean skipNonInteresting, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="../../../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a>> columnSet, |
| <a href="../../../../../../../org/apache/drill/exec/store/parquet/ParquetReaderConfig.html" title="class in org.apache.drill.exec.store.parquet">ParquetReaderConfig</a> readerConfig)</code> |
| <div class="block">Get the file metadata for a single file</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata_V4.ParquetTableMetadata_v4.html" title="class in org.apache.drill.exec.store.parquet.metadata">Metadata_V4.ParquetTableMetadata_v4</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata.html#getParquetTableMetadata-org.apache.hadoop.fs.FileSystem-org.apache.hadoop.fs.Path-org.apache.drill.exec.store.parquet.ParquetReaderConfig-">getParquetTableMetadata</a></span>(org.apache.hadoop.fs.FileSystem fs, |
| org.apache.hadoop.fs.Path path, |
| <a href="../../../../../../../org/apache/drill/exec/store/parquet/ParquetReaderConfig.html" title="class in org.apache.drill.exec.store.parquet">ParquetReaderConfig</a> readerConfig)</code> |
| <div class="block">Get the parquet metadata for the parquet files in the given directory, including those in subdirectories.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata_V4.ParquetTableMetadata_v4.html" title="class in org.apache.drill.exec.store.parquet.metadata">Metadata_V4.ParquetTableMetadata_v4</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata.html#getParquetTableMetadata-java.util.Map-org.apache.drill.exec.store.parquet.ParquetReaderConfig-">getParquetTableMetadata</a></span>(<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><org.apache.hadoop.fs.FileStatus,org.apache.hadoop.fs.FileSystem> fileStatusMap, |
| <a href="../../../../../../../org/apache/drill/exec/store/parquet/ParquetReaderConfig.html" title="class in org.apache.drill.exec.store.parquet">ParquetReaderConfig</a> readerConfig)</code> |
| <div class="block">Get the parquet metadata for a list of parquet files.</div> |
| </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata_V4.MetadataSummary.html" title="class in org.apache.drill.exec.store.parquet.metadata">Metadata_V4.MetadataSummary</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata.html#getSummary-org.apache.hadoop.fs.FileSystem-org.apache.hadoop.fs.Path-boolean-org.apache.drill.exec.store.parquet.ParquetReaderConfig-">getSummary</a></span>(org.apache.hadoop.fs.FileSystem fs, |
| org.apache.hadoop.fs.Path metadataParentDir, |
| boolean autoRefreshTriggered, |
| <a href="../../../../../../../org/apache/drill/exec/store/parquet/ParquetReaderConfig.html" title="class in org.apache.drill.exec.store.parquet">ParquetReaderConfig</a> readerConfig)</code> |
| <div class="block">Reads the summary from the metadata cache file, if the cache file is stale recreates the metadata</div> |
| </td> |
| </tr> |
| <tr id="i6" class="altColor"> |
| <td class="colFirst"><code>static org.apache.hadoop.fs.Path</code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata.html#getSummaryFileName-org.apache.hadoop.fs.Path-">getSummaryFileName</a></span>(org.apache.hadoop.fs.Path metadataParentDir)</code> </td> |
| </tr> |
| <tr id="i7" class="rowColor"> |
| <td class="colFirst"><code>static <a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/MetadataBase.ParquetTableMetadataBase.html" title="class in org.apache.drill.exec.store.parquet.metadata">MetadataBase.ParquetTableMetadataBase</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata.html#readBlockMeta-org.apache.hadoop.fs.FileSystem-java.util.List-org.apache.drill.exec.store.dfs.MetadataContext-org.apache.drill.exec.store.parquet.ParquetReaderConfig-">readBlockMeta</a></span>(org.apache.hadoop.fs.FileSystem fs, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><org.apache.hadoop.fs.Path> paths, |
| <a href="../../../../../../../org/apache/drill/exec/store/dfs/MetadataContext.html" title="class in org.apache.drill.exec.store.dfs">MetadataContext</a> metaContext, |
| <a href="../../../../../../../org/apache/drill/exec/store/parquet/ParquetReaderConfig.html" title="class in org.apache.drill.exec.store.parquet">ParquetReaderConfig</a> readerConfig)</code> |
| <div class="block">Get the parquet metadata for the table by reading the metadata file</div> |
| </td> |
| </tr> |
| <tr id="i8" class="altColor"> |
| <td class="colFirst"><code>static <a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/ParquetTableMetadataDirs.html" title="class in org.apache.drill.exec.store.parquet.metadata">ParquetTableMetadataDirs</a></code></td> |
| <td class="colLast"><code><span class="memberNameLink"><a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata.html#readMetadataDirs-org.apache.hadoop.fs.FileSystem-org.apache.hadoop.fs.Path-org.apache.drill.exec.store.dfs.MetadataContext-org.apache.drill.exec.store.parquet.ParquetReaderConfig-">readMetadataDirs</a></span>(org.apache.hadoop.fs.FileSystem fs, |
| org.apache.hadoop.fs.Path path, |
| <a href="../../../../../../../org/apache/drill/exec/store/dfs/MetadataContext.html" title="class in org.apache.drill.exec.store.dfs">MetadataContext</a> metaContext, |
| <a href="../../../../../../../org/apache/drill/exec/store/parquet/ParquetReaderConfig.html" title="class in org.apache.drill.exec.store.parquet">ParquetReaderConfig</a> readerConfig)</code> |
| <div class="block">Get the parquet metadata for all subdirectories by reading the metadata file</div> |
| </td> |
| </tr> |
| </table> |
| <ul class="blockList"> |
| <li class="blockList"><a name="methods.inherited.from.class.java.lang.Object"> |
| <!-- --> |
| </a> |
| <h3>Methods inherited from class java.lang.<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></h3> |
| <code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#clone--" title="class or interface in java.lang">clone</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#equals-java.lang.Object-" title="class or interface in java.lang">equals</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#finalize--" title="class or interface in java.lang">finalize</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#getClass--" title="class or interface in java.lang">getClass</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#hashCode--" title="class or interface in java.lang">hashCode</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notify--" title="class or interface in java.lang">notify</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#notifyAll--" title="class or interface in java.lang">notifyAll</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#toString--" title="class or interface in java.lang">toString</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait--" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html?is-external=true#wait-long-" title="class or interface in java.lang">wait</a>, <a href="https://docs.oracle.com/javase/8/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> |
| </li> |
| </ul> |
| </div> |
| <div class="details"> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <!-- ============ FIELD DETAIL =========== --> |
| <ul class="blockList"> |
| <li class="blockList"><a name="field.detail"> |
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| </a> |
| <h3>Field Detail</h3> |
| <a name="OLD_METADATA_FILENAMES"> |
| <!-- --> |
| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>OLD_METADATA_FILENAMES</h4> |
| <pre>public static final <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>[] OLD_METADATA_FILENAMES</pre> |
| </li> |
| </ul> |
| <a name="OLD_METADATA_FILENAME"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>OLD_METADATA_FILENAME</h4> |
| <pre>public static final <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> OLD_METADATA_FILENAME</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../../constant-values.html#org.apache.drill.exec.store.parquet.metadata.Metadata.OLD_METADATA_FILENAME">Constant Field Values</a></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="METADATA_DIRECTORIES_FILENAME"> |
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| </a> |
| <ul class="blockList"> |
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| <h4>METADATA_DIRECTORIES_FILENAME</h4> |
| <pre>public static final <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> METADATA_DIRECTORIES_FILENAME</pre> |
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| <h4>METADATA_FILENAME</h4> |
| <pre>public static final <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> METADATA_FILENAME</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../../constant-values.html#org.apache.drill.exec.store.parquet.metadata.Metadata.METADATA_FILENAME">Constant Field Values</a></dd> |
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| <pre>public static final <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> METADATA_SUMMARY_FILENAME</pre> |
| <dl> |
| <dt><span class="seeLabel">See Also:</span></dt> |
| <dd><a href="../../../../../../../constant-values.html#org.apache.drill.exec.store.parquet.metadata.Metadata.METADATA_SUMMARY_FILENAME">Constant Field Values</a></dd> |
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| <pre>public static final <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>[] CURRENT_METADATA_FILENAMES</pre> |
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| <h3>Method Detail</h3> |
| <a name="createMeta-org.apache.hadoop.fs.FileSystem-org.apache.hadoop.fs.Path-org.apache.drill.exec.store.parquet.ParquetReaderConfig-boolean-java.util.Set-"> |
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| <h4>createMeta</h4> |
| <pre>public static void createMeta(org.apache.hadoop.fs.FileSystem fs, |
| org.apache.hadoop.fs.Path path, |
| <a href="../../../../../../../org/apache/drill/exec/store/parquet/ParquetReaderConfig.html" title="class in org.apache.drill.exec.store.parquet">ParquetReaderConfig</a> readerConfig, |
| boolean allColumnsInteresting, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="../../../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a>> columnSet) |
| 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">Create the parquet metadata file for the directory at the given path, and for any subdirectories.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>fs</code> - file system</dd> |
| <dd><code>path</code> - path</dd> |
| <dd><code>readerConfig</code> - parquet reader configuration</dd> |
| <dd><code>allColumnsInteresting</code> - if set, store column metadata for all the columns</dd> |
| <dd><code>columnSet</code> - Set of columns for which column metadata has to be stored</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></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getParquetTableMetadata-org.apache.hadoop.fs.FileSystem-org.apache.hadoop.fs.Path-org.apache.drill.exec.store.parquet.ParquetReaderConfig-"> |
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| <h4>getParquetTableMetadata</h4> |
| <pre>public static <a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata_V4.ParquetTableMetadata_v4.html" title="class in org.apache.drill.exec.store.parquet.metadata">Metadata_V4.ParquetTableMetadata_v4</a> getParquetTableMetadata(org.apache.hadoop.fs.FileSystem fs, |
| org.apache.hadoop.fs.Path path, |
| <a href="../../../../../../../org/apache/drill/exec/store/parquet/ParquetReaderConfig.html" title="class in org.apache.drill.exec.store.parquet">ParquetReaderConfig</a> readerConfig) |
| 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">Get the parquet metadata for the parquet files in the given directory, including those in subdirectories.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>fs</code> - file system</dd> |
| <dd><code>path</code> - path</dd> |
| <dd><code>readerConfig</code> - parquet reader configuration</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>parquet table metadata</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></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getParquetTableMetadata-java.util.Map-org.apache.drill.exec.store.parquet.ParquetReaderConfig-"> |
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| <h4>getParquetTableMetadata</h4> |
| <pre>public static <a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata_V4.ParquetTableMetadata_v4.html" title="class in org.apache.drill.exec.store.parquet.metadata">Metadata_V4.ParquetTableMetadata_v4</a> getParquetTableMetadata(<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><org.apache.hadoop.fs.FileStatus,org.apache.hadoop.fs.FileSystem> fileStatusMap, |
| <a href="../../../../../../../org/apache/drill/exec/store/parquet/ParquetReaderConfig.html" title="class in org.apache.drill.exec.store.parquet">ParquetReaderConfig</a> readerConfig) |
| 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">Get the parquet metadata for a list of parquet files.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>fileStatusMap</code> - file statuses and corresponding file systems</dd> |
| <dd><code>readerConfig</code> - parquet reader configuration</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>parquet table metadata</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></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="readBlockMeta-org.apache.hadoop.fs.FileSystem-java.util.List-org.apache.drill.exec.store.dfs.MetadataContext-org.apache.drill.exec.store.parquet.ParquetReaderConfig-"> |
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| <h4>readBlockMeta</h4> |
| <pre>public static <a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/MetadataBase.ParquetTableMetadataBase.html" title="class in org.apache.drill.exec.store.parquet.metadata">MetadataBase.ParquetTableMetadataBase</a> readBlockMeta(org.apache.hadoop.fs.FileSystem fs, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/List.html?is-external=true" title="class or interface in java.util">List</a><org.apache.hadoop.fs.Path> paths, |
| <a href="../../../../../../../org/apache/drill/exec/store/dfs/MetadataContext.html" title="class in org.apache.drill.exec.store.dfs">MetadataContext</a> metaContext, |
| <a href="../../../../../../../org/apache/drill/exec/store/parquet/ParquetReaderConfig.html" title="class in org.apache.drill.exec.store.parquet">ParquetReaderConfig</a> readerConfig)</pre> |
| <div class="block">Get the parquet metadata for the table by reading the metadata file</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>fs</code> - current file system</dd> |
| <dd><code>paths</code> - The path to the metadata file, located in the directory that contains the parquet files</dd> |
| <dd><code>metaContext</code> - metadata context</dd> |
| <dd><code>readerConfig</code> - parquet reader configuration</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>parquet table metadata. Null if metadata cache is missing, unsupported or corrupted</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="readMetadataDirs-org.apache.hadoop.fs.FileSystem-org.apache.hadoop.fs.Path-org.apache.drill.exec.store.dfs.MetadataContext-org.apache.drill.exec.store.parquet.ParquetReaderConfig-"> |
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| </a> |
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| <h4>readMetadataDirs</h4> |
| <pre>public static <a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/ParquetTableMetadataDirs.html" title="class in org.apache.drill.exec.store.parquet.metadata">ParquetTableMetadataDirs</a> readMetadataDirs(org.apache.hadoop.fs.FileSystem fs, |
| org.apache.hadoop.fs.Path path, |
| <a href="../../../../../../../org/apache/drill/exec/store/dfs/MetadataContext.html" title="class in org.apache.drill.exec.store.dfs">MetadataContext</a> metaContext, |
| <a href="../../../../../../../org/apache/drill/exec/store/parquet/ParquetReaderConfig.html" title="class in org.apache.drill.exec.store.parquet">ParquetReaderConfig</a> readerConfig)</pre> |
| <div class="block">Get the parquet metadata for all subdirectories by reading the metadata file</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>fs</code> - current file system</dd> |
| <dd><code>path</code> - The path to the metadata file, located in the directory that contains the parquet files</dd> |
| <dd><code>metaContext</code> - metadata context</dd> |
| <dd><code>readerConfig</code> - parquet reader configuration</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>parquet metadata for a directory. Null if metadata cache is missing, unsupported or corrupted</dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getParquetFileMetadata_v4-org.apache.drill.exec.store.parquet.metadata.Metadata_V4.ParquetTableMetadata_v4-org.apache.parquet.hadoop.metadata.ParquetMetadata-org.apache.hadoop.fs.FileStatus-org.apache.hadoop.fs.FileSystem-boolean-boolean-java.util.Set-org.apache.drill.exec.store.parquet.ParquetReaderConfig-"> |
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| <h4>getParquetFileMetadata_v4</h4> |
| <pre>public static <a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata_V4.ParquetFileAndRowCountMetadata.html" title="class in org.apache.drill.exec.store.parquet.metadata">Metadata_V4.ParquetFileAndRowCountMetadata</a> getParquetFileMetadata_v4(<a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata_V4.ParquetTableMetadata_v4.html" title="class in org.apache.drill.exec.store.parquet.metadata">Metadata_V4.ParquetTableMetadata_v4</a> parquetTableMetadata, |
| org.apache.parquet.hadoop.metadata.ParquetMetadata footer, |
| org.apache.hadoop.fs.FileStatus file, |
| org.apache.hadoop.fs.FileSystem fs, |
| boolean allColumnsInteresting, |
| boolean skipNonInteresting, |
| <a href="https://docs.oracle.com/javase/8/docs/api/java/util/Set.html?is-external=true" title="class or interface in java.util">Set</a><<a href="../../../../../../../org/apache/drill/common/expression/SchemaPath.html" title="class in org.apache.drill.common.expression">SchemaPath</a>> columnSet, |
| <a href="../../../../../../../org/apache/drill/exec/store/parquet/ParquetReaderConfig.html" title="class in org.apache.drill.exec.store.parquet">ParquetReaderConfig</a> readerConfig) |
| 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="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></pre> |
| <div class="block">Get the file metadata for a single file</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>parquetTableMetadata</code> - The table metadata to be updated with all the columns' info</dd> |
| <dd><code>footer</code> - If non null, use this footer instead of reading it from the file</dd> |
| <dd><code>file</code> - The file</dd> |
| <dd><code>allColumnsInteresting</code> - If true, read the min/max metadata for all the columns</dd> |
| <dd><code>skipNonInteresting</code> - If true, collect info only for the interesting columns</dd> |
| <dd><code>columnSet</code> - Specifies specific columns for which min/max metadata is collected</dd> |
| <dd><code>readerConfig</code> - for the options</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the file metadata</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></dd> |
| <dd><code><a href="https://docs.oracle.com/javase/8/docs/api/java/lang/InterruptedException.html?is-external=true" title="class or interface in java.lang">InterruptedException</a></code></dd> |
| </dl> |
| </li> |
| </ul> |
| <a name="getSummaryFileName-org.apache.hadoop.fs.Path-"> |
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| </a> |
| <ul class="blockList"> |
| <li class="blockList"> |
| <h4>getSummaryFileName</h4> |
| <pre>public static org.apache.hadoop.fs.Path getSummaryFileName(org.apache.hadoop.fs.Path metadataParentDir)</pre> |
| </li> |
| </ul> |
| <a name="getDirFileName-org.apache.hadoop.fs.Path-"> |
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| </a> |
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| <li class="blockList"> |
| <h4>getDirFileName</h4> |
| <pre>public static org.apache.hadoop.fs.Path getDirFileName(org.apache.hadoop.fs.Path metadataParentDir)</pre> |
| </li> |
| </ul> |
| <a name="getSummary-org.apache.hadoop.fs.FileSystem-org.apache.hadoop.fs.Path-boolean-org.apache.drill.exec.store.parquet.ParquetReaderConfig-"> |
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| <h4>getSummary</h4> |
| <pre>public static <a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata_V4.MetadataSummary.html" title="class in org.apache.drill.exec.store.parquet.metadata">Metadata_V4.MetadataSummary</a> getSummary(org.apache.hadoop.fs.FileSystem fs, |
| org.apache.hadoop.fs.Path metadataParentDir, |
| boolean autoRefreshTriggered, |
| <a href="../../../../../../../org/apache/drill/exec/store/parquet/ParquetReaderConfig.html" title="class in org.apache.drill.exec.store.parquet">ParquetReaderConfig</a> readerConfig)</pre> |
| <div class="block">Reads the summary from the metadata cache file, if the cache file is stale recreates the metadata</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>fs</code> - file system</dd> |
| <dd><code>metadataParentDir</code> - parent directory that holds metadata files</dd> |
| <dd><code>autoRefreshTriggered</code> - true if the auto-refresh is already triggered</dd> |
| <dd><code>readerConfig</code> - Parquet reader config</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>returns metadata summary</dd> |
| </dl> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </li> |
| </ul> |
| </div> |
| </div> |
| <!-- ========= END OF CLASS DATA ========= --> |
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| <li class="navBarCell1Rev">Class</li> |
| <li><a href="class-use/Metadata.html">Use</a></li> |
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| <li><a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/FileMetadataCollector.html" title="class in org.apache.drill.exec.store.parquet.metadata"><span class="typeNameLink">Prev Class</span></a></li> |
| <li><a href="../../../../../../../org/apache/drill/exec/store/parquet/metadata/Metadata_V1.html" title="class in org.apache.drill.exec.store.parquet.metadata"><span class="typeNameLink">Next Class</span></a></li> |
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