Package org.robolectric.util

Class PerfStatsCollector

java.lang.Object

org.robolectric.util.PerfStatsCollector

public class PerfStatsCollector
extends Object

Collects performance statistics for later reporting via PerfStatsReporter.

Since:

3.6

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
class	PerfStatsCollector.Event	Event for perf stats collection.
static interface	PerfStatsCollector.ThrowingRunnable<F extends Exception>	Runnable that throws an exception.
static interface	PerfStatsCollector.ThrowingSupplier<T,F extends Exception>	Supplier that throws an exception.

Constructor Summary

Constructors

Constructor	Description
PerfStatsCollector()

Method Summary

Modifier and Type	Method	Description
static PerfStatsCollector	getInstance()
Metadata	getMetadata()
Collection<Metric>	getMetrics()
void	incrementCount(String eventName)
boolean	isEnabled()
<E extends Exception> void	measure(String eventName, PerfStatsCollector.ThrowingRunnable<E> runnable)
<T, E extends Exception> T	measure(String eventName, PerfStatsCollector.ThrowingSupplier<T,E> supplier)
void	putMetadata(Metadata metadata)
void	recordCount(String eventName, int count)	Records a precise count for the given event.
void	reset()
void	setEnabled(boolean isEnabled)	Call to explicitly disable perf stats collection.
PerfStatsCollector.Event	startEvent(String eventName)

Methods inherited from class java.lang.Object

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

Constructor Details

PerfStatsCollector

public PerfStatsCollector()

Method Details

getInstance

public static PerfStatsCollector getInstance()

setEnabled

public void setEnabled(boolean isEnabled)

Call to explicitly disable perf stats collection.

By default, the test runner will disable perf stats collection if there are no registered perf stats reporters.

Users can call this method to control perf stats collection regardless of the presence of perf stats reporters.

isEnabled

public boolean isEnabled()

startEvent

public PerfStatsCollector.Event startEvent(String eventName)

measure

public <T,
E extends Exception> T measure(String eventName,
 PerfStatsCollector.ThrowingSupplier<T,E> supplier)
                                   throws E

Throws:

E

incrementCount

public void incrementCount(String eventName)

recordCount

public void recordCount(String eventName,
 int count)

Records a precise count for the given event.

Unlike incrementCount(String), this method explicitly sets the count to the given value, overwriting any previous count.

measure

public <E extends Exception> void measure(String eventName,
 PerfStatsCollector.ThrowingRunnable<E> runnable)
                                   throws E

Throws:

E

getMetrics

public Collection<Metric> getMetrics()

putMetadata

public void putMetadata(Metadata metadata)

getMetadata

public Metadata getMetadata()

reset

public void reset()