com.facebook.battery.metrics.network

Class NetworkMetricsCollector

java.lang.Object

com.facebook.battery.metrics.api.SystemMetricsCollector<NetworkMetrics>

com.facebook.battery.metrics.network.NetworkMetricsCollector

public class NetworkMetricsCollector
extends SystemMetricsCollector<NetworkMetrics>

Records data transferred by the current application, broken down by type of network (radio vs wifi) and bytes received and transmitted.

This tries to use a qtaguid file if available, but otherwise falls back to TrafficStats with manual instrumentation for guessing which type of network is active.

Constructor Summary

Constructors

Constructor and Description
NetworkMetricsCollector(Context context)

Method Summary

Modifier and Type	Method and Description
NetworkMetrics	createMetrics() Creates an empty instance of the corresponding system metrics.
boolean	getSnapshot(NetworkMetrics snapshot) Note that access to snapshot instances is not synchronized and must be taken care of by the caller requesting getSnapshot.

Methods inherited from class java.lang.Object

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

Constructor Detail

NetworkMetricsCollector

public NetworkMetricsCollector(Context context)

Method Detail

getSnapshot

public boolean getSnapshot(NetworkMetrics snapshot)

Description copied from class: SystemMetricsCollector

Note that access to snapshot instances is not synchronized and must be taken care of by the caller requesting getSnapshot.

Specified by:

getSnapshot in class SystemMetricsCollector<NetworkMetrics>

Parameters:

snapshot - snapshot on which the data will be written

Returns:

true if the snapshot has been updated with valid data.

createMetrics

public NetworkMetrics createMetrics()

Description copied from class: SystemMetricsCollector

Creates an empty instance of the corresponding system metrics.

Explicitly having this function available reduces a significant amount of boilerplate

Specified by:

createMetrics in class SystemMetricsCollector<NetworkMetrics>

Returns:

New System Metrics object