org.apache.drill.exec.physical.impl.scan

Class ScanTestUtils

java.lang.Object

org.apache.drill.exec.physical.impl.scan.ScanTestUtils

public class ScanTestUtils
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ScanTestUtils.MockScanBuilder
static class	ScanTestUtils.ScanFixture
static class	ScanTestUtils.ScanFixtureBuilder

Field Summary

Fields

Modifier and Type	Field and Description
static String	FILE_NAME_COL
static String	FILE_PATH_COL
static String	FULLY_QUALIFIED_NAME_COL
static String	LAST_MODIFIED_TIME_COL
static String	PARTITION_COL
static String	PROJECT_METADATA_COL
static String	ROW_GROUP_INDEX_COL
static String	ROW_GROUP_LENGTH_COL
static String	ROW_GROUP_START_COL
static String	SUFFIX_COL
static String	USE_METADATA_COL

Constructor Summary

Constructors

Constructor and Description
ScanTestUtils()

Method Summary

Modifier and Type	Method and Description
static List<String>	expandImplicit(boolean includeInternal, int dirCount)
static TupleMetadata	expandImplicit(TupleMetadata base, ImplicitColumnManager metadataProj, int dirCount) Mimic legacy wildcard expansion of metadata columns.
static List<ScanLevelProjection.ScanProjectionParser>	parsers(ScanLevelProjection.ScanProjectionParser... parsers) Type-safe way to define a list of parsers.
static String	partitionColName(int partition)
static List<SchemaPath>	projectAllWithAllImplicit(int dirCount)
static List<SchemaPath>	projectAllWithFileImplicit(int dirCount)
static List<ReaderLevelProjection.ReaderProjectionResolver>	resolvers(ReaderLevelProjection.ReaderProjectionResolver... resolvers)
static TupleMetadata	schema(ResolvedTuple output)

Methods inherited from class java.lang.Object

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

Field Detail

FILE_NAME_COL

public static final String FILE_NAME_COL

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Constant Field Values

FULLY_QUALIFIED_NAME_COL

public static final String FULLY_QUALIFIED_NAME_COL

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Constant Field Values

FILE_PATH_COL

public static final String FILE_PATH_COL

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Constant Field Values

SUFFIX_COL

public static final String SUFFIX_COL

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Constant Field Values

PARTITION_COL

public static final String PARTITION_COL

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Constant Field Values

LAST_MODIFIED_TIME_COL

public static final String LAST_MODIFIED_TIME_COL

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Constant Field Values

ROW_GROUP_INDEX_COL

public static final String ROW_GROUP_INDEX_COL

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Constant Field Values

ROW_GROUP_START_COL

public static final String ROW_GROUP_START_COL

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Constant Field Values

ROW_GROUP_LENGTH_COL

public static final String ROW_GROUP_LENGTH_COL

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Constant Field Values

USE_METADATA_COL

public static final String USE_METADATA_COL

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Constant Field Values

PROJECT_METADATA_COL

public static final String PROJECT_METADATA_COL

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Constant Field Values

Constructor Detail

ScanTestUtils

public ScanTestUtils()

Method Detail

parsers

public static List<ScanLevelProjection.ScanProjectionParser> parsers(ScanLevelProjection.ScanProjectionParser... parsers)

Type-safe way to define a list of parsers.

Parameters:

parsers - as a varArgs list convenient for testing

Returns:

parsers as a Java List for input to the scan projection framework

resolvers

public static List<ReaderLevelProjection.ReaderProjectionResolver> resolvers(ReaderLevelProjection.ReaderProjectionResolver... resolvers)

expandImplicit

public static TupleMetadata expandImplicit(TupleMetadata base,
                                           ImplicitColumnManager metadataProj,
                                           int dirCount)

Mimic legacy wildcard expansion of metadata columns. Is not a full emulation because this version only works if the wildcard was at the end of the list (or alone.)

Parameters:

scanProj - scan projection definition (provides the partition column names)

base - the table part of the expansion

dirCount - number of partition directories

Returns:

schema with the metadata columns appended to the table columns

partitionColName

public static String partitionColName(int partition)

schema

public static TupleMetadata schema(ResolvedTuple output)

expandImplicit

public static List<String> expandImplicit(boolean includeInternal,
                                          int dirCount)

projectAllWithFileImplicit

public static List<SchemaPath> projectAllWithFileImplicit(int dirCount)

projectAllWithAllImplicit

public static List<SchemaPath> projectAllWithAllImplicit(int dirCount)