com.newrelic.agent.stats

Class StatsEngineImpl

java.lang.Object

com.newrelic.agent.stats.StatsEngineImpl

All Implemented Interfaces:

StatsEngine

public class StatsEngineImpl
extends java.lang.Object
implements StatsEngine

A class for recording metric stats. This class is not thread-safe.

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_CAPACITY
static int	DEFAULT_SCOPED_CAPACITY
static int	DOUBLE Used to calculate size so to account for the fact that every scoped metric will have an unscoped metric.

Constructor Summary

Constructors

Constructor and Description
StatsEngineImpl()
StatsEngineImpl(int capacity)

Method Summary

Modifier and Type	Method and Description
void	clear()
static java.util.List<MetricData>	createUnscopedCopies(Normalizer metricNormalizer, java.util.List<MetricData> scopedMetrics)
ApdexStats	getApdexStats(MetricName metricName)
DataUsageStats	getDataUsageStats(MetricName metricName)
java.util.List<MetricData>	getMetricData(Normalizer metricNormalizer)
java.util.List<MetricName>	getMetricNames() This is now only used by tests.
ResponseTimeStats	getResponseTimeStats(MetricName metricName)
ResponseTimeStats	getResponseTimeStats(java.lang.String name)
java.util.Map<java.lang.String,SimpleStatsEngine>	getScopedStatsForTesting()
int	getSize()
Stats	getStats(MetricName metricName)
Stats	getStats(java.lang.String name)
SimpleStatsEngine	getUnscopedStatsForTesting()
void	mergeStats(StatsEngine statsEngine)
void	mergeStatsResolvingScope(TransactionStats txStats, java.lang.String resolvedScope)
void	recordEmptyStats(MetricName metricName) Send a zero-count metric to apm.
void	recordEmptyStats(java.lang.String name) Send a zero-count metric to apm.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_CAPACITY

public static final int DEFAULT_CAPACITY

See Also:

Constant Field Values

DEFAULT_SCOPED_CAPACITY

public static final int DEFAULT_SCOPED_CAPACITY

See Also:

Constant Field Values

DOUBLE

public static final int DOUBLE

Used to calculate size so to account for the fact that every scoped metric will have an unscoped metric.

See Also:

Constant Field Values

Constructor Detail

StatsEngineImpl

public StatsEngineImpl()

StatsEngineImpl

public StatsEngineImpl(int capacity)

Method Detail

getUnscopedStatsForTesting

public SimpleStatsEngine getUnscopedStatsForTesting()

getScopedStatsForTesting

public java.util.Map<java.lang.String,SimpleStatsEngine> getScopedStatsForTesting()

getStats

public Stats getStats(java.lang.String name)

Specified by:

getStats in interface StatsEngine

getStats

public Stats getStats(MetricName metricName)

Specified by:

getStats in interface StatsEngine

recordEmptyStats

public void recordEmptyStats(java.lang.String name)

Description copied from interface: StatsEngine

Send a zero-count metric to apm. If this metric is already present, it will be zeroed out.

Specified by:

recordEmptyStats in interface StatsEngine

Parameters:

name - Name of the metric

recordEmptyStats

public void recordEmptyStats(MetricName metricName)

Description copied from interface: StatsEngine

Send a zero-count metric to apm.

Specified by:

recordEmptyStats in interface StatsEngine

Parameters:

metricName - Name of the metric. If this metric is already present, it will be zeroed out.

getResponseTimeStats

public ResponseTimeStats getResponseTimeStats(java.lang.String name)

Specified by:

getResponseTimeStats in interface StatsEngine

getResponseTimeStats

public ResponseTimeStats getResponseTimeStats(MetricName metricName)

Specified by:

getResponseTimeStats in interface StatsEngine

getApdexStats

public ApdexStats getApdexStats(MetricName metricName)

Specified by:

getApdexStats in interface StatsEngine

getDataUsageStats

public DataUsageStats getDataUsageStats(MetricName metricName)

Specified by:

getDataUsageStats in interface StatsEngine

getMetricNames

public java.util.List<MetricName> getMetricNames()

Description copied from interface: StatsEngine

This is now only used by tests.

Specified by:

getMetricNames in interface StatsEngine

clear

public void clear()

Specified by:

clear in interface StatsEngine

getSize

public int getSize()

Specified by:

getSize in interface StatsEngine

Returns:

the number of metrics tracked by the engine.

mergeStats

public void mergeStats(StatsEngine statsEngine)

Specified by:

mergeStats in interface StatsEngine

mergeStatsResolvingScope

public void mergeStatsResolvingScope(TransactionStats txStats,
                                     java.lang.String resolvedScope)

Specified by:

mergeStatsResolvingScope in interface StatsEngine

getMetricData

public java.util.List<MetricData> getMetricData(Normalizer metricNormalizer)

Specified by:

getMetricData in interface StatsEngine

createUnscopedCopies

public static java.util.List<MetricData> createUnscopedCopies(Normalizer metricNormalizer,
                                                              java.util.List<MetricData> scopedMetrics)