org.apache.hadoop.hive.ql.parse

Class EximUtil

java.lang.Object

org.apache.hadoop.hive.ql.parse.EximUtil

public class EximUtil
extends java.lang.Object

EximUtil. Utility methods for the export/import semantic analyzers.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	METADATA_FORMAT_FORWARD_COMPATIBLE_VERSION
static java.lang.String	METADATA_FORMAT_VERSION

Method Summary

Modifier and Type	Method and Description
static void	createExportDump(FileSystem fs, Path metadataPath, Table tableHandle, java.util.List<Partition> partitions)
static void	doCheckCompatibility(java.lang.String currVersion, java.lang.String version, java.lang.String fcVersion)
static java.util.Map<java.lang.String,java.lang.String>	makePartSpec(java.util.List<FieldSchema> partCols, java.util.List<java.lang.String> partVals) Return the partition specification from the specified keys and values
static java.util.Map.Entry<Table,java.util.List<Partition>>	readMetaData(FileSystem fs, Path metadataPath)
static java.lang.String	relativeToAbsolutePath(HiveConf conf, java.lang.String location)
static boolean	schemaCompare(java.util.List<FieldSchema> newSchema, java.util.List<FieldSchema> oldSchema) Compares the schemas - names, types and order, but ignoring comments

Methods inherited from class java.lang.Object

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

Field Detail

METADATA_FORMAT_VERSION

public static final java.lang.String METADATA_FORMAT_VERSION

See Also:

Constant Field Values

METADATA_FORMAT_FORWARD_COMPATIBLE_VERSION

public static final java.lang.String METADATA_FORMAT_FORWARD_COMPATIBLE_VERSION

Method Detail

relativeToAbsolutePath

public static java.lang.String relativeToAbsolutePath(HiveConf conf,
                                                      java.lang.String location)
                                               throws SemanticException

Throws:

SemanticException

createExportDump

public static void createExportDump(FileSystem fs,
                                    Path metadataPath,
                                    Table tableHandle,
                                    java.util.List<Partition> partitions)
                             throws SemanticException,
                                    java.io.IOException

Throws:

SemanticException

java.io.IOException

readMetaData

public static java.util.Map.Entry<Table,java.util.List<Partition>> readMetaData(FileSystem fs,
                                                                                Path metadataPath)
                                                                         throws java.io.IOException,
                                                                                SemanticException

Throws:

java.io.IOException

SemanticException

doCheckCompatibility

public static void doCheckCompatibility(java.lang.String currVersion,
                                        java.lang.String version,
                                        java.lang.String fcVersion)
                                 throws SemanticException

Throws:

SemanticException

makePartSpec

public static java.util.Map<java.lang.String,java.lang.String> makePartSpec(java.util.List<FieldSchema> partCols,
                                                                            java.util.List<java.lang.String> partVals)

Return the partition specification from the specified keys and values

Parameters:

partCols - the names of the partition keys

partVals - the values of the partition keys

Returns:

the partition specification as a map

schemaCompare

public static boolean schemaCompare(java.util.List<FieldSchema> newSchema,
                                    java.util.List<FieldSchema> oldSchema)

Compares the schemas - names, types and order, but ignoring comments

Parameters:

newSchema - the new schema

oldSchema - the old schema

Returns:

a boolean indicating match