程序包 org.springframework.boot.context.metrics.buffering

类 BufferingApplicationStartup

java.lang.Object

org.springframework.boot.context.metrics.buffering.BufferingApplicationStartup

所有已实现的接口:

ApplicationStartup

public class BufferingApplicationStartup
extends Object
implements ApplicationStartup

ApplicationStartup implementation that buffers steps and records their timestamp as well as their processing time.

Once recording has been started, steps are buffered up until the configured capacity; after that, new steps are not recorded.

There are several ways to keep the buffer size low:

• configuring filters to only record steps that are relevant to us.
• draining the buffered steps.

从以下版本开始:

2.4.0

作者:

Brian Clozel, Phillip Webb

字段概要

从接口继承的字段 org.springframework.core.metrics.ApplicationStartup

DEFAULT

构造器概要

构造器

构造器	说明
BufferingApplicationStartup(int capacity)	Create a new buffered ApplicationStartup with a limited capacity and starts the recording of steps.

方法概要

修饰符和类型	方法	说明
void	addFilter(Predicate<StartupStep> filter)	Add a predicate filter to the list of existing ones.
StartupTimeline	drainBufferedTimeline()	Return the timeline by pulling steps from the buffer.
StartupTimeline	getBufferedTimeline()	Return the timeline as a snapshot of currently buffered steps.
StartupStep	start(String name)
void	startRecording()	Start the recording of steps and mark the beginning of the StartupTimeline.

从类继承的方法 java.lang.Object

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

构造器详细资料

BufferingApplicationStartup

public BufferingApplicationStartup(int capacity)

Create a new buffered ApplicationStartup with a limited capacity and starts the recording of steps.

参数:

capacity - the configured capacity; once reached, new steps are not recorded.

方法详细资料

startRecording

public void startRecording()

Start the recording of steps and mark the beginning of the StartupTimeline. The class constructor already implicitly calls this, but it is possible to reset it as long as steps have not been recorded already.

抛出:

IllegalStateException - if called and StartupStep have been recorded already.

addFilter

public void addFilter(Predicate<StartupStep> filter)

Add a predicate filter to the list of existing ones.

A step that doesn't match all filters will not be recorded.

参数:

filter - the predicate filter to add.

start

public StartupStep start(String name)

指定者:

start 在接口中 ApplicationStartup

getBufferedTimeline

public StartupTimeline getBufferedTimeline()

Return the timeline as a snapshot of currently buffered steps.

This will not remove steps from the buffer, see drainBufferedTimeline() for its counterpart.

返回:

a snapshot of currently buffered steps.

drainBufferedTimeline

public StartupTimeline drainBufferedTimeline()

Return the timeline by pulling steps from the buffer.

This removes steps from the buffer, see getBufferedTimeline() for its read-only counterpart.

返回:

buffered steps drained from the buffer.