HostStatsdMetricCollector

public class HostStatsdMetricCollector
extends BaseDeviceMetricCollector

java.lang.Object
↳	com.android.tradefed.device.metric.BaseDeviceMetricCollector
	↳	com.android.tradefed.device.metric.HostStatsdMetricCollector

A IMetricCollector that collects statsd metrics from host side using statsd utility commands. It has basic push metrics and dump report functions. It can be extended by subclasses to process statsd metric report based on the needs.

Summary

Public constructors
`HostStatsdMetricCollector()`

Public methods
`void`	`onTestRunEnd(DeviceMetricData runData, currentRunMetrics)` Callback when a test run is ended.
`void`	`onTestRunStart(DeviceMetricData runData)` Callback when a test run is started.

Protected methods
`void`	`processStatsReport(ITestDevice device, InputStreamSource dataStream, DeviceMetricData runData)` Subclasses can implement the method to process Statsd metric report if needed.

Public constructors

HostStatsdMetricCollector

public HostStatsdMetricCollector ()

Public methods

onTestRunEnd

public void onTestRunEnd (DeviceMetricData runData, 
                 currentRunMetrics)

Callback when a test run is ended. This should be the time for clean up.

Parameters
`runData`	`DeviceMetricData`: the `DeviceMetricData` holding the data for the run. Will be the same object as during `onTestRunStart(com.android.tradefed.device.metric.DeviceMetricData)`.
`currentRunMetrics`	: the current map of metrics passed to `ERROR(/#testRunEnded(long,Map))`.

onTestRunStart

public void onTestRunStart (DeviceMetricData runData)

Callback when a test run is started.

Parameters
`runData`	`DeviceMetricData`: the `DeviceMetricData` holding the data for the run.

Protected methods

processStatsReport

protected void processStatsReport (ITestDevice device, 
                InputStreamSource dataStream, 
                DeviceMetricData runData)

Subclasses can implement the method to process Statsd metric report if needed. It is called for metric report from a particular device

Parameters
`device`	`ITestDevice`: Test device where the statsd report is coming from
`dataStream`	`InputStreamSource`: Stats report as input stream
`runData`	`DeviceMetricData`: The destination where the processed metrics will be stored