FirebasePerformance

public class FirebasePerformance extends Object

The Firebase Performance Monitoring API.

It is automatically initialized by FirebaseApp.

This SDK uses FirebaseInstallations to identify the app instance and periodically sends data to the Firebase backend. To stop sending performance events, call FirebasePerformance.setPerformanceCollectionEnabled(false).

Nested Class Summary

@interface

FirebasePerformance.HttpMethod

Valid HttpMethods for manual network APIs

Constant Summary

int	MAX_ATTRIBUTE_KEY_LENGTH	Maximum allowed length of the Key of the Trace attribute
int	MAX_ATTRIBUTE_VALUE_LENGTH	Maximum allowed length of the Value of the Trace attribute
int	MAX_TRACE_CUSTOM_ATTRIBUTES	Maximum allowed number of attributes allowed in a trace.
int	MAX_TRACE_NAME_LENGTH	Maximum allowed length of the name of the Trace

Public Method Summary

static FirebasePerformance	getInstance() Returns a singleton of FirebasePerformance.
boolean	isPerformanceCollectionEnabled() Determines whether performance monitoring is enabled or disabled.
HttpMetric	newHttpMetric(URL url, String httpMethod) Creates a HttpMetric object for collecting network performance data for one request/response
HttpMetric	newHttpMetric(String url, String httpMethod) Creates a HttpMetric object for collecting network performance data for one request/response
Trace	newTrace(String traceName) Creates a Trace object with given name.
void	setPerformanceCollectionEnabled(boolean enable) Enables or disables performance monitoring.
static Trace	startTrace(String traceName) Creates a Trace object with given name and start the trace.

Inherited Method Summary

From class java.lang.Object

Object	clone()
boolean	equals(Object arg0)
void	finalize()
final Class<?>	getClass()
int	hashCode()
final void	notify()
final void	notifyAll()
String	toString()
final void	wait(long arg0, int arg1)
final void	wait(long arg0)
final void	wait()

Constants

public static final int MAX_ATTRIBUTE_KEY_LENGTH

Maximum allowed length of the Key of the Trace attribute

Constant Value: 40

public static final int MAX_ATTRIBUTE_VALUE_LENGTH

Maximum allowed length of the Value of the Trace attribute

Constant Value: 100

public static final int MAX_TRACE_CUSTOM_ATTRIBUTES

Maximum allowed number of attributes allowed in a trace.

Constant Value: 5

public static final int MAX_TRACE_NAME_LENGTH

Maximum allowed length of the name of the Trace

Constant Value: 100

Public Methods

public static FirebasePerformance getInstance ()

Returns a singleton of FirebasePerformance.

Returns

• the singleton FirebasePerformance object.

public boolean isPerformanceCollectionEnabled ()

Determines whether performance monitoring is enabled or disabled. This respects the Firebase Performance specific values first, and if these aren't set, uses the Firebase wide data collection switch.

Returns

• true if performance monitoring is enabled and false if performance monitoring is disabled. This is for dynamic enable/disable state. This does not reflect whether instrumentation is enabled/disabled in Gradle properties.

public HttpMetric newHttpMetric (URL url, String httpMethod)

Creates a HttpMetric object for collecting network performance data for one request/response

Parameters

url	a valid URL object
httpMethod	One of the values GET, PUT, POST, DELETE, HEAD, PATCH, OPTIONS, TRACE, or CONNECT

Returns

• the new HttpMetric object.

public HttpMetric newHttpMetric (String url, String httpMethod)

Creates a HttpMetric object for collecting network performance data for one request/response

Parameters

url	a valid url String, cannot be empty
httpMethod	One of the values GET, PUT, POST, DELETE, HEAD, PATCH, OPTIONS, TRACE, or CONNECT

Returns

• the new HttpMetric object.

public Trace newTrace (String traceName)

Creates a Trace object with given name.

Parameters

traceName	name of the trace, requires no leading or trailing whitespace, no leading underscore '_' character, max length is MAX_TRACE_NAME_LENGTH characters.

Returns

• the new Trace object.

public void setPerformanceCollectionEnabled (boolean enable)

Enables or disables performance monitoring. This setting is persisted and applied on future invocations of your application. By default, performance monitoring is enabled. If you need to change the default (for example, because you want to prompt the user before collecting performance stats), add:

            <meta-data android:name=firebase_performance_collection_enabled android:value=false />
 

to your application’s manifest. Changing the value during runtime will override the manifest value.

If you want to permanently disable sending performance metrics, add

            <meta-data android:name="firebase_performance_collection_deactivated" android:value="true" />
 

to your application's manifest. Changing the value during runtime will not override the manifest value.

This is separate from enabling/disabling instrumentation in Gradle properties.

Parameters

enable	Should performance monitoring be enabled

public static Trace startTrace (String traceName)

Creates a Trace object with given name and start the trace.

Parameters

traceName	name of the trace. Requires no leading or trailing whitespace, no leading underscore [_] character, max length of MAX_TRACE_NAME_LENGTH characters.

Returns

• the new Trace object.