org.springframework.core.metrics.jfr

Class FlightRecorderApplicationStartup

java.lang.Object

org.springframework.core.metrics.jfr.FlightRecorderApplicationStartup

All Implemented Interfaces:

ApplicationStartup

public class FlightRecorderApplicationStartup
extends Object
implements ApplicationStartup

ApplicationStartup implementation for the Java Flight Recorder.

This variant records StartupStep as Flight Recorder events. Because such events only support base types, the StartupStep.Tags are serialized as a single String attribute.

Once this is configured on the application context, you can record data by launching the application with recording enabled: java -XX:StartFlightRecording:filename=recording.jfr,duration=10s -jar app.jar.

Since:

5.3

Author:

Brian Clozel

Field Summary

Fields inherited from interface org.springframework.core.metrics.ApplicationStartup

DEFAULT

Constructor Summary

Constructors

Constructor and Description
FlightRecorderApplicationStartup()

Method Summary

Modifier and Type	Method and Description
StartupStep	start(String name) Create a new step and marks its beginning.

Methods inherited from class java.lang.Object

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

Constructor Detail

FlightRecorderApplicationStartup

public FlightRecorderApplicationStartup()

Method Detail

start

public StartupStep start(String name)

Description copied from interface: ApplicationStartup

Create a new step and marks its beginning.

A step name describes the current action or phase. This technical name should be "." namespaced and can be reused to describe other instances of the same step during application startup.

Specified by:

start in interface ApplicationStartup

Parameters:

name - the step name