org.apache.hadoop.hbase.hbtop.mode

Class RegionModeStrategy

java.lang.Object

org.apache.hadoop.hbase.hbtop.mode.RegionModeStrategy

All Implemented Interfaces:

ModeStrategy

@InterfaceAudience.Private
public final class RegionModeStrategy
extends Object
implements ModeStrategy

Implementation for ModeStrategy for Region Mode.

Field Summary

Fields

Modifier and Type	Field and Description
private List<FieldInfo>	fieldInfos
private Map<String,RequestCountPerSecond>	requestCountPerSecondMap

Constructor Summary

Constructors

Constructor and Description
RegionModeStrategy()

Method Summary

Modifier and Type	Method and Description
private Record	createRecord(ServerMetrics serverMetrics, RegionMetrics regionMetrics, long lastReportTimestamp)
DrillDownInfo	drillDown(Record selectedRecord)
Field	getDefaultSortField()
List<FieldInfo>	getFieldInfos()
List<Record>	getRecords(ClusterMetrics clusterMetrics, List<RecordFilter> pushDownFilters)
(package private) List<Record>	selectModeFieldsAndAddCountField(List<FieldInfo> fieldInfos, List<Record> records, Field countField) Form new record list with records formed by only fields provided through fieldInfo and add a count field for each record with value 1 We are doing two operation of selecting and adding new field because of saving some CPU cycles on rebuilding the record again

Methods inherited from class java.lang.Object

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

Field Detail

fieldInfos

private final List<FieldInfo> fieldInfos

requestCountPerSecondMap

private final Map<String,RequestCountPerSecond> requestCountPerSecondMap

Constructor Detail

RegionModeStrategy

RegionModeStrategy()

Method Detail

getFieldInfos

public List<FieldInfo> getFieldInfos()

Specified by:

getFieldInfos in interface ModeStrategy

getDefaultSortField

public Field getDefaultSortField()

Specified by:

getDefaultSortField in interface ModeStrategy

getRecords

public List<Record> getRecords(ClusterMetrics clusterMetrics,
                               List<RecordFilter> pushDownFilters)

Specified by:

getRecords in interface ModeStrategy

createRecord

private Record createRecord(ServerMetrics serverMetrics,
                            RegionMetrics regionMetrics,
                            long lastReportTimestamp)

selectModeFieldsAndAddCountField

List<Record> selectModeFieldsAndAddCountField(List<FieldInfo> fieldInfos,
                                              List<Record> records,
                                              Field countField)

Form new record list with records formed by only fields provided through fieldInfo and add a count field for each record with value 1 We are doing two operation of selecting and adding new field because of saving some CPU cycles on rebuilding the record again

Parameters:

fieldInfos - List of FieldInfos required in the record

records - List of records which needs to be processed

countField - Field which needs to be added with value 1 for each record

Returns:

records after selecting required fields and adding count field

drillDown

@Nullable
public DrillDownInfo drillDown(Record selectedRecord)

Specified by:

drillDown in interface ModeStrategy