org.apache.hadoop.hbase.mapreduce

Class LabelExpander

java.lang.Object

org.apache.hadoop.hbase.mapreduce.LabelExpander

@InterfaceAudience.Private
public class LabelExpander
extends Object

An utility class that helps the mapper and reducers used with visibility to scan the visibility_labels and helps in parsing and expanding the visibility tags

Constructor Summary

Constructors

Constructor and Description
LabelExpander(org.apache.hadoop.conf.Configuration conf)

Method Summary

Methods

Modifier and Type	Method and Description
KeyValue	createKVFromCellVisibilityExpr(int rowKeyOffset, int rowKeyLength, byte[] family, int familyOffset, int familyLength, byte[] qualifier, int qualifierOffset, int qualifierLength, long ts, KeyValue.Type put, byte[] lineBytes, int columnOffset, int columnLength, String cellVisibilityExpr) Creates a kv from the cell visibility expr specified in the ImportTSV and uses it as the visibility tag in the kv
List<Tag>	createVisibilityTags(String visibilityLabelsExp)

Methods inherited from class java.lang.Object

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

Constructor Detail

LabelExpander

public LabelExpander(org.apache.hadoop.conf.Configuration conf)

Method Detail

createVisibilityTags

public List<Tag> createVisibilityTags(String visibilityLabelsExp)
                               throws IOException,
                                      ImportTsv.TsvParser.BadTsvLineException

Throws:

IOException

ImportTsv.TsvParser.BadTsvLineException

createKVFromCellVisibilityExpr

public KeyValue createKVFromCellVisibilityExpr(int rowKeyOffset,
                                      int rowKeyLength,
                                      byte[] family,
                                      int familyOffset,
                                      int familyLength,
                                      byte[] qualifier,
                                      int qualifierOffset,
                                      int qualifierLength,
                                      long ts,
                                      KeyValue.Type put,
                                      byte[] lineBytes,
                                      int columnOffset,
                                      int columnLength,
                                      String cellVisibilityExpr)
                                        throws IOException,
                                               ImportTsv.TsvParser.BadTsvLineException

Creates a kv from the cell visibility expr specified in the ImportTSV and uses it as the visibility tag in the kv

Parameters:

rowKeyOffset -

rowKeyLength -

family -

familyOffset -

familyLength -

qualifier -

qualifierOffset -

qualifierLength -

ts -

put -

lineBytes -

columnOffset -

columnLength -

cellVisibilityExpr -

Returns:

KeyValue from the cell visibility expr

Throws:

IOException

ImportTsv.TsvParser.BadTsvLineException