com.yahoo.bard.webservice.web.util

Class QueryWeightUtil

java.lang.Object

com.yahoo.bard.webservice.web.util.QueryWeightUtil

@Singleton
public class QueryWeightUtil
extends Object

Query Weight Util provides features used for configuring and adjusting weight query thresholds.

Field Summary

Fields

Modifier and Type	Field and Description
static String	QUERY_WEIGHT_LIMIT_KEY

Constructor Summary

Constructors

Constructor and Description
QueryWeightUtil() Constructor.

Method Summary

Modifier and Type	Method and Description
long	getQueryWeightThreshold(Granularity granularity) Get the weight threshold for the granularity.
WeightEvaluationQuery	makeWeightEvaluationQuery(DruidAggregationQuery<?> druidQuery) Get the weight check query for the given query.
boolean	skipWeightCheckQuery(DruidAggregationQuery<?> query) Indicate if the weight check query can be skipped based on heuristics.

Methods inherited from class java.lang.Object

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

Field Detail

QUERY_WEIGHT_LIMIT_KEY

@NotNull
public static final String QUERY_WEIGHT_LIMIT_KEY

Constructor Detail

QueryWeightUtil

@Inject
public QueryWeightUtil()

Constructor.

Method Detail

getQueryWeightThreshold

public long getQueryWeightThreshold(Granularity granularity)

Get the weight threshold for the granularity.

Parameters:

granularity - Granularity to get the threshold for.

Returns:

the threshold

skipWeightCheckQuery

public boolean skipWeightCheckQuery(DruidAggregationQuery<?> query)

Indicate if the weight check query can be skipped based on heuristics.

Parameters:

query - Query to test

Returns:

true if the weight check query does not need to be run

makeWeightEvaluationQuery

public WeightEvaluationQuery makeWeightEvaluationQuery(DruidAggregationQuery<?> druidQuery)

Get the weight check query for the given query.

Parameters:

druidQuery - Druid query to convert to a weight check query

Returns:

the converted query