Package io.microsphere.spring.context.event

Class BeanTimeStatistics

java.lang.Object

io.microsphere.spring.context.event.BeanTimeStatistics

All Implemented Interfaces:

BeanListener, EventListener, org.springframework.beans.factory.Aware, org.springframework.beans.factory.BeanNameAware

public class BeanTimeStatistics
extends Object
implements BeanListener, org.springframework.beans.factory.BeanNameAware

BeanTimeStatistics is a BeanListener implementation that tracks and measures the time spent during various stages of a Spring Bean's lifecycle using a StopWatch instance.

This class provides detailed timing information for bean instantiation, initialization, destruction, and other key events in the Spring context. It is particularly useful for performance analysis and debugging.

Example Usage

 // Registering BeanTimeStatistics as a listener in a Spring context
 AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
 context.register(BeanTimeStatistics.class);
 context.refresh();
 

Once registered, it will automatically begin measuring the following bean lifecycle events:

• onBeanDefinitionReady(String, RootBeanDefinition) - when a bean definition is ready
• onBeforeBeanInstantiate(String, RootBeanDefinition) - before a bean is instantiated
• onAfterBeanInstantiated(String, RootBeanDefinition, Object) - after a bean is instantiated
• onBeforeBeanInitialize(String, Object) - before a bean is initialized
• onAfterBeanInitialized(String, Object) - after a bean is initialized
• onBeanReady(String, Object) - when a bean is fully ready for use
• onBeforeBeanDestroy(String, Object) - before a bean is destroyed
• onAfterBeanDestroy(String, Object) - after a bean is destroyed

The collected timing data can be accessed via the getStopWatch() method, which returns a StopWatch instance containing all measured times.

Since:

1.0.0

Author:

Mercy

See Also:

• StopWatch
• BeanListener
• EventPublishingBeanInitializer

Constructor Summary

Constructors

Constructor	Description
BeanTimeStatistics()

Method Summary

Modifier and Type	Method	Description
io.microsphere.util.StopWatch	getStopWatch()
void	onAfterBeanDestroy(String beanName, Object bean)	Handle the event after the bean destroy
void	onAfterBeanInitialized(String beanName, Object bean)	Handle the event after the bean initialization
void	onAfterBeanInstantiated(String beanName, org.springframework.beans.factory.support.RootBeanDefinition mergedBeanDefinition, Object bean)	Handle the event before after the bean instantiation
void	onBeanDefinitionReady(String beanName, org.springframework.beans.factory.support.RootBeanDefinition mergedBeanDefinition)	Handle the event when the BeanDefinition is ready(merged)
void	onBeanPropertyValuesReady(String beanName, Object bean, org.springframework.beans.PropertyValues pvs)	Handle the event when the Beans' PropertyValues is ready
void	onBeanReady(String beanName, Object bean)	Handle the event on the bean ready
void	onBeforeBeanDestroy(String beanName, Object bean)	Handle the event before the bean destroy
void	onBeforeBeanInitialize(String beanName, Object bean)	Handle the event before the bean initialization
void	onBeforeBeanInstantiate(String beanName, org.springframework.beans.factory.support.RootBeanDefinition mergedBeanDefinition)	Handle the event before the bean instantiation
void	onBeforeBeanInstantiate(String beanName, org.springframework.beans.factory.support.RootBeanDefinition mergedBeanDefinition, Object factoryBean, Method factoryMethod, Object[] args)	Handle the event before the bean instantiation using the factory method
void	onBeforeBeanInstantiate(String beanName, org.springframework.beans.factory.support.RootBeanDefinition mergedBeanDefinition, Constructor<?> constructor, Object[] args)	Handle the event before the bean instantiation using the constructor
void	setBeanName(String name)
boolean	supports(String beanName)	Supports the bean to be listened or not
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

BeanTimeStatistics

public BeanTimeStatistics()

Method Details

supports

public boolean supports(String beanName)

Description copied from interface: BeanListener

Supports the bean to be listened or not

Specified by:

supports in interface BeanListener

Parameters:

beanName - the name of bean

Returns:

If false, any method of bean lifecycle will not be called

onBeanDefinitionReady

public void onBeanDefinitionReady(String beanName,
 org.springframework.beans.factory.support.RootBeanDefinition mergedBeanDefinition)

Description copied from interface: BeanListener

Handle the event when the BeanDefinition is ready(merged)

Specified by:

onBeanDefinitionReady in interface BeanListener

Parameters:

beanName - the bean name

mergedBeanDefinition - the merged BeanDefinition

onBeforeBeanInstantiate

public void onBeforeBeanInstantiate(String beanName,
 org.springframework.beans.factory.support.RootBeanDefinition mergedBeanDefinition)

Description copied from interface: BeanListener

Handle the event before the bean instantiation

Specified by:

onBeforeBeanInstantiate in interface BeanListener

Parameters:

beanName - the bean name

mergedBeanDefinition - the merged BeanDefinition

onBeforeBeanInstantiate

public void onBeforeBeanInstantiate(String beanName,
 org.springframework.beans.factory.support.RootBeanDefinition mergedBeanDefinition,
 Constructor<?> constructor,
 Object[] args)

Description copied from interface: BeanListener

Handle the event before the bean instantiation using the constructor

Specified by:

onBeforeBeanInstantiate in interface BeanListener

Parameters:

beanName - the bean name

mergedBeanDefinition - the merged BeanDefinition

constructor - the constructor for bean instantiation

args - the arguments of constructor

onBeforeBeanInstantiate

public void onBeforeBeanInstantiate(String beanName,
 org.springframework.beans.factory.support.RootBeanDefinition mergedBeanDefinition,
 Object factoryBean,
 Method factoryMethod,
 Object[] args)

Description copied from interface: BeanListener

Handle the event before the bean instantiation using the factory method

Specified by:

onBeforeBeanInstantiate in interface BeanListener

Parameters:

beanName - the bean name

mergedBeanDefinition - the merged BeanDefinition

factoryBean - the factory bean(optional)

factoryMethod - the factory Method for bean instantiation

onAfterBeanInstantiated

public void onAfterBeanInstantiated(String beanName,
 org.springframework.beans.factory.support.RootBeanDefinition mergedBeanDefinition,
 Object bean)

Description copied from interface: BeanListener

Handle the event before after the bean instantiation

Specified by:

onAfterBeanInstantiated in interface BeanListener

Parameters:

beanName - the bean name

mergedBeanDefinition - the merged BeanDefinition

bean - the bean has been instantiated, not initialized yet

onBeanPropertyValuesReady

public void onBeanPropertyValuesReady(String beanName,
 Object bean,
 org.springframework.beans.PropertyValues pvs)

Description copied from interface: BeanListener

Handle the event when the Beans' PropertyValues is ready

Specified by:

onBeanPropertyValuesReady in interface BeanListener

Parameters:

beanName - the bean name

bean - the bean has been instantiated, not initialized yet

pvs - the PropertyValues will be applied on bean

onBeforeBeanInitialize

public void onBeforeBeanInitialize(String beanName,
 Object bean)

Description copied from interface: BeanListener

Handle the event before the bean initialization

Specified by:

onBeforeBeanInitialize in interface BeanListener

Parameters:

beanName - the bean name

bean - the bean is not initialized yet

onAfterBeanInitialized

public void onAfterBeanInitialized(String beanName,
 Object bean)

Description copied from interface: BeanListener

Handle the event after the bean initialization

Specified by:

onAfterBeanInitialized in interface BeanListener

Parameters:

beanName - the bean name

bean - the bean has been initialized

onBeanReady

public void onBeanReady(String beanName,
 Object bean)

Description copied from interface: BeanListener

Handle the event on the bean ready

Specified by:

onBeanReady in interface BeanListener

Parameters:

beanName - the bean name

bean - the bean is prepared

onBeforeBeanDestroy

public void onBeforeBeanDestroy(String beanName,
 Object bean)

Description copied from interface: BeanListener

Handle the event before the bean destroy

Specified by:

onBeforeBeanDestroy in interface BeanListener

Parameters:

beanName - the bean name

bean - the bean is to be destroyed

onAfterBeanDestroy

public void onAfterBeanDestroy(String beanName,
 Object bean)

Description copied from interface: BeanListener

Handle the event after the bean destroy

Specified by:

onAfterBeanDestroy in interface BeanListener

Parameters:

beanName - the bean name

bean - the bean is destroyed

getStopWatch

public io.microsphere.util.StopWatch getStopWatch()

toString

public String toString()

Overrides:

toString in class Object

setBeanName

public void setBeanName(String name)

Specified by:

setBeanName in interface org.springframework.beans.factory.BeanNameAware