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| <div class="subTitle"><span class="packageLabelInType">Package</span> <a href="package-summary.html">org.apache.iceberg.spark</a></div> |
| <h2 title="Class SparkUtil" class="title">Class SparkUtil</h2> |
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| <pre>public class <span class="typeNameLabel">SparkUtil</span> |
| extends java.lang.Object</pre> |
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| <th class="colFirst" scope="col">Modifier and Type</th> |
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| <td class="colFirst"><code>static boolean</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#caseSensitive(org.apache.spark.sql.SparkSession)">caseSensitive</a></span>​(org.apache.spark.sql.SparkSession spark)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i1" class="rowColor"> |
| <td class="colFirst"><code>static <C,​T><br><a href="../util/Pair.html" title="class in org.apache.iceberg.util">Pair</a><C,​T></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#catalogAndIdentifier(java.util.List,java.util.function.Function,java.util.function.BiFunction,C,java.lang.String%5B%5D)">catalogAndIdentifier</a></span>​(java.util.List<java.lang.String> nameParts, |
| java.util.function.Function<java.lang.String,​C> catalogProvider, |
| java.util.function.BiFunction<java.lang.String[],​java.lang.String,​T> identiferProvider, |
| C currentCatalog, |
| java.lang.String[] currentNamespace)</code></th> |
| <td class="colLast"> |
| <div class="block">A modified version of Spark's LookupCatalog.CatalogAndIdentifier.unapply Attempts to find the |
| catalog and identifier a multipart identifier represents</div> |
| </td> |
| </tr> |
| <tr id="i2" class="altColor"> |
| <td class="colFirst"><code>static org.apache.hadoop.conf.Configuration</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#hadoopConfCatalogOverrides(org.apache.spark.sql.SparkSession,java.lang.String)">hadoopConfCatalogOverrides</a></span>​(org.apache.spark.sql.SparkSession spark, |
| java.lang.String catalogName)</code></th> |
| <td class="colLast"> |
| <div class="block">Pulls any Catalog specific overrides for the Hadoop conf from the current SparkSession, which |
| can be set via `spark.sql.catalog.$catalogName.hadoop.*`</div> |
| </td> |
| </tr> |
| <tr id="i3" class="rowColor"> |
| <td class="colFirst"><code>static java.util.List<org.apache.spark.sql.catalyst.expressions.Expression></code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#partitionMapToExpression(org.apache.spark.sql.types.StructType,java.util.Map)">partitionMapToExpression</a></span>​(org.apache.spark.sql.types.StructType schema, |
| java.util.Map<java.lang.String,​java.lang.String> filters)</code></th> |
| <td class="colLast"> |
| <div class="block">Get a List of Spark filter Expression.</div> |
| </td> |
| </tr> |
| <tr id="i4" class="altColor"> |
| <td class="colFirst"><code>static java.lang.String</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#toColumnName(org.apache.spark.sql.connector.expressions.NamedReference)">toColumnName</a></span>​(org.apache.spark.sql.connector.expressions.NamedReference ref)</code></th> |
| <td class="colLast"> </td> |
| </tr> |
| <tr id="i5" class="rowColor"> |
| <td class="colFirst"><code>static void</code></td> |
| <th class="colSecond" scope="row"><code><span class="memberNameLink"><a href="#validatePartitionTransforms(org.apache.iceberg.PartitionSpec)">validatePartitionTransforms</a></span>​(<a href="../PartitionSpec.html" title="class in org.apache.iceberg">PartitionSpec</a> spec)</code></th> |
| <td class="colLast"> |
| <div class="block">Check whether the partition transforms in a spec can be used to write data.</div> |
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| <code>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</code></li> |
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| <h4>validatePartitionTransforms</h4> |
| <pre class="methodSignature">public static void validatePartitionTransforms​(<a href="../PartitionSpec.html" title="class in org.apache.iceberg">PartitionSpec</a> spec)</pre> |
| <div class="block">Check whether the partition transforms in a spec can be used to write data.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>spec</code> - a PartitionSpec</dd> |
| <dt><span class="throwsLabel">Throws:</span></dt> |
| <dd><code>java.lang.UnsupportedOperationException</code> - if the spec contains unknown partition transforms</dd> |
| </dl> |
| </li> |
| </ul> |
| <a id="catalogAndIdentifier(java.util.List,java.util.function.Function,java.util.function.BiFunction,java.lang.Object,java.lang.String[])"> |
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| <h4>catalogAndIdentifier</h4> |
| <pre class="methodSignature">public static <C,​T> <a href="../util/Pair.html" title="class in org.apache.iceberg.util">Pair</a><C,​T> catalogAndIdentifier​(java.util.List<java.lang.String> nameParts, |
| java.util.function.Function<java.lang.String,​C> catalogProvider, |
| java.util.function.BiFunction<java.lang.String[],​java.lang.String,​T> identiferProvider, |
| C currentCatalog, |
| java.lang.String[] currentNamespace)</pre> |
| <div class="block">A modified version of Spark's LookupCatalog.CatalogAndIdentifier.unapply Attempts to find the |
| catalog and identifier a multipart identifier represents</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>nameParts</code> - Multipart identifier representing a table</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>The CatalogPlugin and Identifier for the table</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>hadoopConfCatalogOverrides</h4> |
| <pre class="methodSignature">public static org.apache.hadoop.conf.Configuration hadoopConfCatalogOverrides​(org.apache.spark.sql.SparkSession spark, |
| java.lang.String catalogName)</pre> |
| <div class="block">Pulls any Catalog specific overrides for the Hadoop conf from the current SparkSession, which |
| can be set via `spark.sql.catalog.$catalogName.hadoop.*` |
| |
| <p>Mirrors the override of hadoop configurations for a given spark session using |
| `spark.hadoop.*`. |
| |
| <p>The SparkCatalog allows for hadoop configurations to be overridden per catalog, by setting |
| them on the SQLConf, where the following will add the property "fs.default.name" with value |
| "hdfs://hanksnamenode:8020" to the catalog's hadoop configuration. SparkSession.builder() |
| .config(s"spark.sql.catalog.$catalogName.hadoop.fs.default.name", "hdfs://hanksnamenode:8020") |
| .getOrCreate()</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>spark</code> - The current Spark session</dd> |
| <dd><code>catalogName</code> - Name of the catalog to find overrides for.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>the Hadoop Configuration that should be used for this catalog, with catalog specific |
| overrides applied.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>partitionMapToExpression</h4> |
| <pre class="methodSignature">public static java.util.List<org.apache.spark.sql.catalyst.expressions.Expression> partitionMapToExpression​(org.apache.spark.sql.types.StructType schema, |
| java.util.Map<java.lang.String,​java.lang.String> filters)</pre> |
| <div class="block">Get a List of Spark filter Expression.</div> |
| <dl> |
| <dt><span class="paramLabel">Parameters:</span></dt> |
| <dd><code>schema</code> - table schema</dd> |
| <dd><code>filters</code> - filters in the format of a Map, where key is one of the table column name, and |
| value is the specific value to be filtered on the column.</dd> |
| <dt><span class="returnLabel">Returns:</span></dt> |
| <dd>a List of filters in the format of Spark Expression.</dd> |
| </dl> |
| </li> |
| </ul> |
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| <h4>toColumnName</h4> |
| <pre class="methodSignature">public static java.lang.String toColumnName​(org.apache.spark.sql.connector.expressions.NamedReference ref)</pre> |
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| <h4>caseSensitive</h4> |
| <pre class="methodSignature">public static boolean caseSensitive​(org.apache.spark.sql.SparkSession spark)</pre> |
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