org.apache.tinkerpop.gremlin.process.traversal.util

Class DefaultTraversalMetrics

java.lang.Object

org.apache.tinkerpop.gremlin.process.traversal.util.DefaultTraversalMetrics

All Implemented Interfaces:

Serializable, TraversalMetrics

public final class DefaultTraversalMetrics
extends Object
implements TraversalMetrics, Serializable

Default implementation for TraversalMetrics that aggregates ImmutableMetrics instances from a Traversal.

Author:

Bob Briody (http://bobbriody.com), Marko A. Rodriguez (http://markorodriguez.com), Stephen Mallette (http://stephen.genoprime.com)

See Also:

Serialized Form

Field Summary

Fields inherited from interface org.apache.tinkerpop.gremlin.process.traversal.util.TraversalMetrics

ELEMENT_COUNT_ID, PERCENT_DURATION_KEY, TRAVERSER_COUNT_ID

Constructor Summary

Constructors

Constructor and Description
DefaultTraversalMetrics()
DefaultTraversalMetrics(long totalStepDurationNs, List<MutableMetrics> orderedMetrics) This is only a convenient constructor needed for GraphSON deserialization.

Method Summary

Modifier and Type	Method and Description
long	getDuration(TimeUnit unit) Get the total duration taken by the Traversal.
Collection<ImmutableMetrics>	getMetrics() Gets all the metrics.
Metrics	getMetrics(int index) Get an individual Metrics object by the index of the profiled Step.
Metrics	getMetrics(String id) Get an individual Metrics object by the id of the profiled Step.
boolean	isFinalized() The metrics have been computed and can no longer be modified.
void	setMetrics(Traversal.Admin traversal, boolean onGraphComputer) Extracts metrics from the provided traversal and computes metrics.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultTraversalMetrics

public DefaultTraversalMetrics()

DefaultTraversalMetrics

public DefaultTraversalMetrics(long totalStepDurationNs,
                               List<MutableMetrics> orderedMetrics)

This is only a convenient constructor needed for GraphSON deserialization.

Method Detail

getDuration

public long getDuration(TimeUnit unit)

Description copied from interface: TraversalMetrics

Get the total duration taken by the Traversal.

Specified by:

getDuration in interface TraversalMetrics

Returns:

total duration taken by the Traversal.

getMetrics

public Metrics getMetrics(int index)

Description copied from interface: TraversalMetrics

Get an individual Metrics object by the index of the profiled Step.

Specified by:

getMetrics in interface TraversalMetrics

Returns:

an individual Metrics object.

getMetrics

public Metrics getMetrics(String id)

Description copied from interface: TraversalMetrics

Get an individual Metrics object by the id of the profiled Step.

Specified by:

getMetrics in interface TraversalMetrics

Returns:

an individual Metrics object.

getMetrics

public Collection<ImmutableMetrics> getMetrics()

Description copied from interface: TraversalMetrics

Gets all the metrics.

Specified by:

getMetrics in interface TraversalMetrics

isFinalized

public boolean isFinalized()

The metrics have been computed and can no longer be modified.

toString

public String toString()

Overrides:

toString in class Object

setMetrics

public void setMetrics(Traversal.Admin traversal,
                       boolean onGraphComputer)

Extracts metrics from the provided traversal and computes metrics. Calling this method finalizes the metrics such that their values can no longer be modified.