org.picocontainer.gems.monitors

Class Slf4jComponentMonitor

java.lang.Object

org.picocontainer.gems.monitors.Slf4jComponentMonitor

All Implemented Interfaces:

Serializable, ComponentMonitor

public class Slf4jComponentMonitor
extends Object
implements ComponentMonitor, Serializable

A ComponentMonitor which writes to a Slf4j Logger instance. The Logger instance can either be injected or, if not set, the LoggerFactory will be used to retrieve it at every invocation of the monitor.

Author:

Paul Hammant, Mauro Talevi, Michael Rimov

See Also:

Serialized Form

Field Summary

Fields inherited from interface org.picocontainer.ComponentMonitor

KEEP

Constructor Summary

Constructors

Constructor and Description
Slf4jComponentMonitor() Creates a Slf4jComponentMonitor with no Logger instance set.
Slf4jComponentMonitor(Class<?> loggerClass) Creates a Slf4jComponentMonitor with a given Logger instance class.
Slf4jComponentMonitor(Class<?> loggerClass, ComponentMonitor delegate) Creates a Slf4jComponentMonitor with a given Logger instance class.
Slf4jComponentMonitor(ComponentMonitor delegate) Similar to default constructor behavior, but this version wraps a delegate ComponentMonitor.
Slf4jComponentMonitor(org.slf4j.Logger logger) Creates a Slf4jComponentMonitor with a given Logger instance
Slf4jComponentMonitor(org.slf4j.Logger logger, ComponentMonitor delegate) Creates a Slf4jComponentMonitor with a given Slf4j Logger instance
Slf4jComponentMonitor(String loggerName) Creates a Slf4jComponentMonitor with a given Logger instance name.
Slf4jComponentMonitor(String loggerName, ComponentMonitor delegate) Creates a Slf4jComponentMonitor with a given Logger instance name.

Method Summary

Methods

Modifier and Type	Method and Description
protected org.slf4j.Logger	getLogger(Member member) Retrieves the logger factory based class being instantiated.
<T> void	instantiated(PicoContainer container, ComponentAdapter<T> componentAdapter, Constructor<T> constructor, Object instantiated, Object[] parameters, long duration) *
<T> Constructor<T>	instantiating(PicoContainer container, ComponentAdapter<T> componentAdapter, Constructor<T> constructor) *
<T> void	instantiationFailed(PicoContainer container, ComponentAdapter<T> componentAdapter, Constructor<T> constructor, Exception cause) *
void	invocationFailed(Member member, Object instance, Exception cause) *
void	invoked(PicoContainer container, ComponentAdapter<?> componentAdapter, Member member, Object instance, long duration, Object[] args, Object retVal) *
Object	invoking(PicoContainer container, ComponentAdapter<?> componentAdapter, Member member, Object instance, Object[] args) *
void	lifecycleInvocationFailed(MutablePicoContainer container, ComponentAdapter<?> componentAdapter, Method method, Object instance, RuntimeException cause) *
Behavior	newBehavior(Behavior behavior)
Injector	newInjector(Injector injector)
Object	noComponentFound(MutablePicoContainer container, Object componentKey) *

Methods inherited from class java.lang.Object

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

Constructor Detail

Slf4jComponentMonitor

public Slf4jComponentMonitor()

Creates a Slf4jComponentMonitor with no Logger instance set. The LoggerFactory will be used to retrieve the Logger instance at every invocation of the monitor.

Slf4jComponentMonitor

public Slf4jComponentMonitor(Class<?> loggerClass)

Creates a Slf4jComponentMonitor with a given Logger instance class. The class name is used to retrieve the Logger instance.

Parameters:

loggerClass - the class of the Logger

Slf4jComponentMonitor

public Slf4jComponentMonitor(String loggerName)

Creates a Slf4jComponentMonitor with a given Logger instance name. It uses the LoggerFactory to create the Logger instance.

Parameters:

loggerName - the name of the Log

Slf4jComponentMonitor

public Slf4jComponentMonitor(org.slf4j.Logger logger)

Creates a Slf4jComponentMonitor with a given Logger instance

Parameters:

logger - the Logger to write to

Slf4jComponentMonitor

public Slf4jComponentMonitor(Class<?> loggerClass,
                     ComponentMonitor delegate)

Creates a Slf4jComponentMonitor with a given Logger instance class. The class name is used to retrieve the Logger instance.

Parameters:

loggerClass - the class of the Logger

delegate - the delegate

Slf4jComponentMonitor

public Slf4jComponentMonitor(String loggerName,
                     ComponentMonitor delegate)

Creates a Slf4jComponentMonitor with a given Logger instance name. It uses the LoggerFactory to create the Logger instance.

Parameters:

loggerName - the name of the Log

delegate - the delegate

Slf4jComponentMonitor

public Slf4jComponentMonitor(org.slf4j.Logger logger,
                     ComponentMonitor delegate)

Creates a Slf4jComponentMonitor with a given Slf4j Logger instance

Parameters:

logger - the Logger to write to

delegate - the delegate

Slf4jComponentMonitor

public Slf4jComponentMonitor(ComponentMonitor delegate)

Similar to default constructor behavior, but this version wraps a delegate ComponentMonitor.

Parameters:

delegate - The next component monitor in the chain.

Method Detail

instantiating

public <T> Constructor<T> instantiating(PicoContainer container,
                               ComponentAdapter<T> componentAdapter,
                               Constructor<T> constructor)

*

Specified by:

instantiating in interface ComponentMonitor

instantiated

public <T> void instantiated(PicoContainer container,
                    ComponentAdapter<T> componentAdapter,
                    Constructor<T> constructor,
                    Object instantiated,
                    Object[] parameters,
                    long duration)

*

Specified by:

instantiated in interface ComponentMonitor

instantiationFailed

public <T> void instantiationFailed(PicoContainer container,
                           ComponentAdapter<T> componentAdapter,
                           Constructor<T> constructor,
                           Exception cause)

*

Specified by:

instantiationFailed in interface ComponentMonitor

invoking

public Object invoking(PicoContainer container,
              ComponentAdapter<?> componentAdapter,
              Member member,
              Object instance,
              Object[] args)

*

Specified by:

invoking in interface ComponentMonitor

invoked

public void invoked(PicoContainer container,
           ComponentAdapter<?> componentAdapter,
           Member member,
           Object instance,
           long duration,
           Object[] args,
           Object retVal)

*

Specified by:

invoked in interface ComponentMonitor

invocationFailed

public void invocationFailed(Member member,
                    Object instance,
                    Exception cause)

*

Specified by:

invocationFailed in interface ComponentMonitor

lifecycleInvocationFailed

public void lifecycleInvocationFailed(MutablePicoContainer container,
                             ComponentAdapter<?> componentAdapter,
                             Method method,
                             Object instance,
                             RuntimeException cause)

*

Specified by:

lifecycleInvocationFailed in interface ComponentMonitor

noComponentFound

public Object noComponentFound(MutablePicoContainer container,
                      Object componentKey)

*

Specified by:

noComponentFound in interface ComponentMonitor

newInjector

public Injector newInjector(Injector injector)

Specified by:

newInjector in interface ComponentMonitor

newBehavior

public Behavior newBehavior(Behavior behavior)

Specified by:

newBehavior in interface ComponentMonitor

getLogger

protected org.slf4j.Logger getLogger(Member member)

Retrieves the logger factory based class being instantiated.

Parameters:

member - Source method/constructor, etc being instantiated.

Returns:

an appropriate logger instance for this callback.