Module ch.qos.logback.classic

Package ch.qos.logback.classic.boolex

Class ExceptionMatchEvaluator

java.lang.Object

ch.qos.logback.core.spi.ContextAwareBase

ch.qos.logback.core.boolex.EventEvaluatorBase<ILoggingEvent>

ch.qos.logback.classic.boolex.ExceptionMatchEvaluator

All Implemented Interfaces:

EventEvaluator<ILoggingEvent>, ContextAware, LifeCycle

public class ExceptionMatchEvaluator
extends EventEvaluatorBase<ILoggingEvent>

A simple EventEvaluator that checks whether the logging event being evaluated has a throwable of the same class as specified by the exceptionClass parameter.

Here is a

  <configuration>
     <import class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"/>
     <import class="ch.qos.logback.core.filter.EvaluatorFilter"/>
     <import class="ch.qos.logback.classic.boolex.ExceptionMatchEvaluator"/>
     <import class="ch.qos.logback.core.ConsoleAppender"/>

     <appender name="CONSOLE" class="ConsoleAppender">
         <filter class="EvaluatorFilter">
             <evaluator class="ExceptionMatchEvaluator">
                 <exceptionClass>java.lang.RuntimeException</exceptionClass>
             </evaluator>
             <OnMismatch>DENY</OnMismatch>
             <OnMatch>NEUTRAL</OnMatch>
         </filter>

         <encoder class="PatternLayoutEncoder">
             <pattern>%-4relative [%thread] %-5level %logger -%kvp -%msg%n</pattern>
         </encoder>
     </appender>

     <root level="INFO">
         <appender-ref ref="CONSOLE"/>
     </root>
 </configuration>


 

Field Summary

Fields inherited from class ch.qos.logback.core.spi.ContextAwareBase

context

Constructor Summary

Constructors

Constructor	Description
ExceptionMatchEvaluator()

Method Summary

Modifier and Type	Method	Description
boolean	evaluate(ILoggingEvent event)	Evaluates whether the event passed as parameter matches some user-specified criteria.
String	getExceptionClass()
boolean	isStarted()
void	setExceptionClass(String exceptionClass)
void	start()
void	stop()

Methods inherited from class ch.qos.logback.core.boolex.EventEvaluatorBase

getName, setName

Methods inherited from class ch.qos.logback.core.spi.ContextAwareBase

addError, addError, addInfo, addInfo, addStatus, addWarn, addWarn, getContext, getDeclaredOrigin, getStatusManager, setContext

Methods inherited from class java.lang.Object

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

Methods inherited from interface ch.qos.logback.core.spi.ContextAware

addError, addError, addInfo, addInfo, addStatus, addWarn, addWarn, getContext, setContext

Constructor Details

ExceptionMatchEvaluator

public ExceptionMatchEvaluator()

Method Details

start

public void start()

Specified by:

start in interface LifeCycle

Overrides:

start in class EventEvaluatorBase<ILoggingEvent>

stop

public void stop()

Specified by:

stop in interface LifeCycle

Overrides:

stop in class EventEvaluatorBase<ILoggingEvent>

isStarted

public boolean isStarted()

Specified by:

isStarted in interface LifeCycle

Overrides:

isStarted in class EventEvaluatorBase<ILoggingEvent>

evaluate

public boolean evaluate(ILoggingEvent event)
                 throws NullPointerException,
EvaluationException

Description copied from interface: EventEvaluator

Evaluates whether the event passed as parameter matches some user-specified criteria.

The Evaluator is free to evaluate the event as it pleases. In particular, the evaluation results may depend on previous events.

Parameters:

event - The event to evaluate

Returns:

true if there is a match, false otherwise.

Throws:

NullPointerException - can be thrown in presence of null values

EvaluationException - may be thrown during faulty evaluation

getExceptionClass

public String getExceptionClass()

setExceptionClass

public void setExceptionClass(String exceptionClass)