Package org.hawkular.agent.prometheus.text

Class TextPrometheusMetricDataParser

java.lang.Object

org.hawkular.agent.prometheus.PrometheusMetricDataParser<MetricFamily>

org.hawkular.agent.prometheus.text.TextPrometheusMetricDataParser

public class TextPrometheusMetricDataParser
extends PrometheusMetricDataParser<MetricFamily>

Provides a method that can scrape Permetheus text metric data from input streams.

Constructor Summary

Constructors

Constructor	Description
TextPrometheusMetricDataParser(java.io.InputStream inputStream)	Provides the input stream where the parser will look for metric data.

Method Summary

Modifier and Type	Method	Description
MetricFamily	parse()	Reads a single metric family from the Prometheus metric data stream and returns it.

Methods inherited from class org.hawkular.agent.prometheus.PrometheusMetricDataParser

getInputStream

Methods inherited from class java.lang.Object

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

Constructor Detail

TextPrometheusMetricDataParser

public TextPrometheusMetricDataParser(java.io.InputStream inputStream)

Provides the input stream where the parser will look for metric data. NOTE: this object will not own this stream - it should never attempt to close it.

Parameters:

inputStream - the stream where the metric data can be found

Method Detail

parse

public MetricFamily parse()
                   throws java.io.IOException

Description copied from class: PrometheusMetricDataParser

Reads a single metric family from the Prometheus metric data stream and returns it. Returns null when no more data is in the stream. This method is designed to be called several times, each time it returns the next metric family found in the input stream.

Specified by:

parse in class PrometheusMetricDataParser<MetricFamily>

Returns:

the metric family data found in the stream, or null

Throws:

java.io.IOException - if failed to read the data from the stream