org.apache.pinot.tools.query.comparison

Class SegmentInfoProvider

java.lang.Object

org.apache.pinot.tools.query.comparison.SegmentInfoProvider

public class SegmentInfoProvider
extends Object

Given a segments directory, pick all segments and read the dictionaries for all single-value dimension columns. Here we will treat time column (if exists) as a single-value dimension column.

Constructor Summary

Constructors

Constructor and Description
SegmentInfoProvider(String segmentDirName) Assume that segments directory has at least one segment.

Method Summary

Modifier and Type	Method and Description
List<String>	getMetricColumns() Return the list of metric columns
List<String>	getSingleValueDimensionColumns() Return the list of single-value dimension columns.
Map<String,List<Object>>	getSingleValueDimensionValuesMap() Return the map from single-value dimension names to values list for the column.

Methods inherited from class java.lang.Object

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

Constructor Detail

SegmentInfoProvider

public SegmentInfoProvider(String segmentDirName)
                    throws Exception

Assume that segments directory has at least one segment. - Gets all single-value dimension/metric columns from the directory. - Reads dictionaries for all single-value dimension columns.

Parameters:

segmentDirName - Name of directory containing tarred/untarred segments.

Throws:

Exception

Method Detail

getSingleValueDimensionColumns

public List<String> getSingleValueDimensionColumns()

Return the list of single-value dimension columns.

Returns:

single-value dimension columns.

getMetricColumns

public List<String> getMetricColumns()

Return the list of metric columns

Returns:

metric columns.

getSingleValueDimensionValuesMap

public Map<String,List<Object>> getSingleValueDimensionValuesMap()

Return the map from single-value dimension names to values list for the column.

Returns:

map from single-value dimension names to values list for the column.