Class MetricReader

java.lang.Object

io.opencensus.exporter.metrics.util.MetricReader

public class MetricReader
extends Object

Helper class to read all available Metrics from a MetricProducerManager and exports them to a MetricExporter.

Since:

0.19

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MetricReader.Options	Options for MetricReader.

Field Summary

Fields

Modifier and Type	Field	Description
(package private) static final String	DEFAULT_SPAN_NAME
private static final Logger	logger
private final MetricProducerManager	metricProducerManager
private static final Sampler	probabilitySampler
private final String	spanName
private static final Tracer	tracer

Constructor Summary

Constructors

Modifier	Constructor	Description
private	MetricReader(MetricProducerManager metricProducerManager, String spanName)

Method Summary

Modifier and Type	Method	Description
static MetricReader	create(MetricReader.Options options)	Creates a new MetricReader.
private static String	exceptionMessage(Throwable e)
void	readAndExport(MetricExporter metricExporter)	Reads the metrics from the MetricProducerManager and exports them to the metricExporter.

Methods inherited from class Object

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

Field Details

tracer

private static final Tracer tracer

logger

private static final Logger logger

probabilitySampler

private static final Sampler probabilitySampler

DEFAULT_SPAN_NAME

static final String DEFAULT_SPAN_NAME

See Also:

• Constant Field Values

metricProducerManager

private final MetricProducerManager metricProducerManager

spanName

private final String spanName

Constructor Details

MetricReader

private MetricReader(MetricProducerManager metricProducerManager,
 String spanName)

Method Details

create

public static MetricReader create(MetricReader.Options options)

Creates a new MetricReader.

Parameters:

options - the options for MetricReader.

Returns:

a new MetricReader.

Since:

0.19

readAndExport

public void readAndExport(MetricExporter metricExporter)

Reads the metrics from the MetricProducerManager and exports them to the metricExporter.

Parameters:

metricExporter - the exporter called to export the metrics read.

Since:

0.19

exceptionMessage

private static String exceptionMessage(Throwable e)