Package org.apache.iceberg.spark

Class Spark3Util

java.lang.Object

org.apache.iceberg.spark.Spark3Util

public class Spark3Util
extends java.lang.Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	Spark3Util.CatalogAndIdentifier	This mimics a class inside of Spark which is private inside of LookupCatalog.
static class	Spark3Util.DescribeSchemaVisitor

Method Summary

Modifier and Type	Method	Description
static UpdateProperties	applyPropertyChanges(UpdateProperties pendingUpdate, java.util.List<org.apache.spark.sql.connector.catalog.TableChange> changes)	Applies a list of Spark table changes to an UpdateProperties operation.
static UpdateSchema	applySchemaChanges(UpdateSchema pendingUpdate, java.util.List<org.apache.spark.sql.connector.catalog.TableChange> changes)	Applies a list of Spark table changes to an UpdateSchema operation.
static Spark3Util.CatalogAndIdentifier	catalogAndIdentifier(java.lang.String description, org.apache.spark.sql.SparkSession spark, java.lang.String name)
static Spark3Util.CatalogAndIdentifier	catalogAndIdentifier(java.lang.String description, org.apache.spark.sql.SparkSession spark, java.lang.String name, org.apache.spark.sql.connector.catalog.CatalogPlugin defaultCatalog)
static Spark3Util.CatalogAndIdentifier	catalogAndIdentifier(org.apache.spark.sql.SparkSession spark, java.lang.String name)
static Spark3Util.CatalogAndIdentifier	catalogAndIdentifier(org.apache.spark.sql.SparkSession spark, java.lang.String name, org.apache.spark.sql.connector.catalog.CatalogPlugin defaultCatalog)
static Spark3Util.CatalogAndIdentifier	catalogAndIdentifier(org.apache.spark.sql.SparkSession spark, java.util.List<java.lang.String> nameParts)
static Spark3Util.CatalogAndIdentifier	catalogAndIdentifier(org.apache.spark.sql.SparkSession spark, java.util.List<java.lang.String> nameParts, org.apache.spark.sql.connector.catalog.CatalogPlugin defaultCatalog)	A modified version of Spark's LookupCatalog.CatalogAndIdentifier.unapply Attempts to find the catalog and identifier a multipart identifier represents
static java.lang.String	describe(Expression expr)
static java.lang.String	describe(Schema schema)
static java.lang.String	describe(SortOrder order)
static java.lang.String	describe(Type type)
static boolean	extensionsEnabled(org.apache.spark.sql.SparkSession spark)
static java.util.List<SparkTableUtil.SparkPartition>	getPartitions(org.apache.spark.sql.SparkSession spark, org.apache.hadoop.fs.Path rootPath, java.lang.String format, java.util.Map<java.lang.String,java.lang.String> partitionFilter)	Use Spark to list all partitions in the table.
static TableIdentifier	identifierToTableIdentifier(org.apache.spark.sql.connector.catalog.Identifier identifier)
static Table	loadIcebergTable(org.apache.spark.sql.SparkSession spark, java.lang.String name)	Returns an Iceberg Table by its name from a Spark V2 Catalog.
static java.util.Map<java.lang.String,java.lang.String>	rebuildCreateProperties(java.util.Map<java.lang.String,java.lang.String> createProperties)
static org.apache.spark.sql.util.CaseInsensitiveStringMap	setOption(java.lang.String key, java.lang.String value, org.apache.spark.sql.util.CaseInsensitiveStringMap options)
static Table	toIcebergTable(org.apache.spark.sql.connector.catalog.Table table)
static Term	toIcebergTerm(org.apache.spark.sql.connector.expressions.Expression expr)
static org.apache.spark.sql.connector.expressions.NamedReference	toNamedReference(java.lang.String name)
static PartitionSpec	toPartitionSpec(Schema schema, org.apache.spark.sql.connector.expressions.Transform[] partitioning)	Converts Spark transforms into a PartitionSpec.
static org.apache.spark.sql.connector.expressions.Transform[]	toTransforms(PartitionSpec spec)	Converts a PartitionSpec to Spark transforms.
static org.apache.spark.sql.catalyst.TableIdentifier	toV1TableIdentifier(org.apache.spark.sql.connector.catalog.Identifier identifier)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

setOption

public static org.apache.spark.sql.util.CaseInsensitiveStringMap setOption(java.lang.String key,
                                                                           java.lang.String value,
                                                                           org.apache.spark.sql.util.CaseInsensitiveStringMap options)

rebuildCreateProperties

public static java.util.Map<java.lang.String,java.lang.String> rebuildCreateProperties(java.util.Map<java.lang.String,java.lang.String> createProperties)

applyPropertyChanges

public static UpdateProperties applyPropertyChanges(UpdateProperties pendingUpdate,
                                                    java.util.List<org.apache.spark.sql.connector.catalog.TableChange> changes)

Applies a list of Spark table changes to an UpdateProperties operation.

Parameters:

pendingUpdate - an uncommitted UpdateProperties operation to configure

changes - a list of Spark table changes

Returns:

the UpdateProperties operation configured with the changes

applySchemaChanges

public static UpdateSchema applySchemaChanges(UpdateSchema pendingUpdate,
                                              java.util.List<org.apache.spark.sql.connector.catalog.TableChange> changes)

Applies a list of Spark table changes to an UpdateSchema operation.

Parameters:

pendingUpdate - an uncommitted UpdateSchema operation to configure

changes - a list of Spark table changes

Returns:

the UpdateSchema operation configured with the changes

toIcebergTable

public static Table toIcebergTable(org.apache.spark.sql.connector.catalog.Table table)

toTransforms

public static org.apache.spark.sql.connector.expressions.Transform[] toTransforms(PartitionSpec spec)

Converts a PartitionSpec to Spark transforms.

Parameters:

spec - a PartitionSpec

Returns:

an array of Transforms

toNamedReference

public static org.apache.spark.sql.connector.expressions.NamedReference toNamedReference(java.lang.String name)

toIcebergTerm

public static Term toIcebergTerm(org.apache.spark.sql.connector.expressions.Expression expr)

toPartitionSpec

public static PartitionSpec toPartitionSpec(Schema schema,
                                            org.apache.spark.sql.connector.expressions.Transform[] partitioning)

Converts Spark transforms into a PartitionSpec.

Parameters:

schema - the table schema

partitioning - Spark Transforms

Returns:

a PartitionSpec

describe

public static java.lang.String describe(Expression expr)

describe

public static java.lang.String describe(Schema schema)

describe

public static java.lang.String describe(Type type)

describe

public static java.lang.String describe(SortOrder order)

extensionsEnabled

public static boolean extensionsEnabled(org.apache.spark.sql.SparkSession spark)

loadIcebergTable

public static Table loadIcebergTable(org.apache.spark.sql.SparkSession spark,
                                     java.lang.String name)
                              throws org.apache.spark.sql.catalyst.parser.ParseException,
                                     org.apache.spark.sql.catalyst.analysis.NoSuchTableException

Returns an Iceberg Table by its name from a Spark V2 Catalog. If cache is enabled in SparkCatalog, the TableOperations of the table may be stale, please refresh the table to get the latest one.

Parameters:

spark - SparkSession used for looking up catalog references and tables

name - The multipart identifier of the Iceberg table

Returns:

an Iceberg table

Throws:

org.apache.spark.sql.catalyst.parser.ParseException

org.apache.spark.sql.catalyst.analysis.NoSuchTableException

catalogAndIdentifier

public static Spark3Util.CatalogAndIdentifier catalogAndIdentifier(org.apache.spark.sql.SparkSession spark,
                                                                   java.lang.String name)
                                                            throws org.apache.spark.sql.catalyst.parser.ParseException

Throws:

org.apache.spark.sql.catalyst.parser.ParseException

catalogAndIdentifier

public static Spark3Util.CatalogAndIdentifier catalogAndIdentifier(org.apache.spark.sql.SparkSession spark,
                                                                   java.lang.String name,
                                                                   org.apache.spark.sql.connector.catalog.CatalogPlugin defaultCatalog)
                                                            throws org.apache.spark.sql.catalyst.parser.ParseException

Throws:

org.apache.spark.sql.catalyst.parser.ParseException

catalogAndIdentifier

public static Spark3Util.CatalogAndIdentifier catalogAndIdentifier(java.lang.String description,
                                                                   org.apache.spark.sql.SparkSession spark,
                                                                   java.lang.String name)

catalogAndIdentifier

public static Spark3Util.CatalogAndIdentifier catalogAndIdentifier(java.lang.String description,
                                                                   org.apache.spark.sql.SparkSession spark,
                                                                   java.lang.String name,
                                                                   org.apache.spark.sql.connector.catalog.CatalogPlugin defaultCatalog)

catalogAndIdentifier

public static Spark3Util.CatalogAndIdentifier catalogAndIdentifier(org.apache.spark.sql.SparkSession spark,
                                                                   java.util.List<java.lang.String> nameParts)

catalogAndIdentifier

public static Spark3Util.CatalogAndIdentifier catalogAndIdentifier(org.apache.spark.sql.SparkSession spark,
                                                                   java.util.List<java.lang.String> nameParts,
                                                                   org.apache.spark.sql.connector.catalog.CatalogPlugin defaultCatalog)

A modified version of Spark's LookupCatalog.CatalogAndIdentifier.unapply Attempts to find the catalog and identifier a multipart identifier represents

Parameters:

spark - Spark session to use for resolution

nameParts - Multipart identifier representing a table

defaultCatalog - Catalog to use if none is specified

Returns:

The CatalogPlugin and Identifier for the table

identifierToTableIdentifier

public static TableIdentifier identifierToTableIdentifier(org.apache.spark.sql.connector.catalog.Identifier identifier)

getPartitions

public static java.util.List<SparkTableUtil.SparkPartition> getPartitions(org.apache.spark.sql.SparkSession spark,
                                                                          org.apache.hadoop.fs.Path rootPath,
                                                                          java.lang.String format,
                                                                          java.util.Map<java.lang.String,java.lang.String> partitionFilter)

Use Spark to list all partitions in the table.

Parameters:

spark - a Spark session

rootPath - a table identifier

format - format of the file

partitionFilter - partitionFilter of the file

Returns:

all table's partitions

toV1TableIdentifier

public static org.apache.spark.sql.catalyst.TableIdentifier toV1TableIdentifier(org.apache.spark.sql.connector.catalog.Identifier identifier)