Package org.springframework.aop.interceptor

Class PerformanceMonitorInterceptor

java.lang.Object

org.springframework.aop.interceptor.AbstractTraceInterceptor

org.springframework.aop.interceptor.AbstractMonitoringInterceptor

org.springframework.aop.interceptor.PerformanceMonitorInterceptor

All Implemented Interfaces:

Serializable, Advice, Interceptor, MethodInterceptor

public class PerformanceMonitorInterceptor
extends AbstractMonitoringInterceptor

Simple AOP Alliance MethodInterceptor for performance monitoring. This interceptor has no effect on the intercepted method call.

Uses a StopWatch for the actual performance measuring.

Author:

Rod Johnson, Dmitriy Kopylenko, Rob Harrop

See Also:

• StopWatch
• Serialized Form

Field Summary

Fields inherited from class org.springframework.aop.interceptor.AbstractTraceInterceptor

defaultLogger

Constructor Summary

Constructors

Constructor	Description
PerformanceMonitorInterceptor()	Create a new PerformanceMonitorInterceptor with a static logger.
PerformanceMonitorInterceptor(boolean useDynamicLogger)	Create a new PerformanceMonitorInterceptor with a dynamic or static logger, according to the given flag.

Method Summary

Modifier and Type	Method	Description
protected Object	invokeUnderTrace(MethodInvocation invocation, Log logger)	Subclasses must override this method to perform any tracing around the supplied MethodInvocation.

Methods inherited from class org.springframework.aop.interceptor.AbstractMonitoringInterceptor

createInvocationTraceName, getPrefix, getSuffix, setLogTargetClassInvocation, setPrefix, setSuffix

Methods inherited from class org.springframework.aop.interceptor.AbstractTraceInterceptor

getClassForLogging, getLoggerForInvocation, invoke, isInterceptorEnabled, isLogEnabled, setHideProxyClassNames, setLogExceptionStackTrace, setLoggerName, setUseDynamicLogger, writeToLog, writeToLog

Methods inherited from class java.lang.Object

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

Constructor Details

PerformanceMonitorInterceptor

public PerformanceMonitorInterceptor()

Create a new PerformanceMonitorInterceptor with a static logger.

PerformanceMonitorInterceptor

public PerformanceMonitorInterceptor(boolean useDynamicLogger)

Create a new PerformanceMonitorInterceptor with a dynamic or static logger, according to the given flag.

Parameters:

useDynamicLogger - whether to use a dynamic logger or a static logger

See Also:

• AbstractTraceInterceptor.setUseDynamicLogger(boolean)

Method Details

invokeUnderTrace

protected Object invokeUnderTrace(MethodInvocation invocation,
 Log logger)
                           throws Throwable

Description copied from class: AbstractTraceInterceptor

Subclasses must override this method to perform any tracing around the supplied MethodInvocation. Subclasses are responsible for ensuring that the MethodInvocation actually executes by calling MethodInvocation.proceed().

By default, the passed-in Log instance will have log level "trace" enabled. Subclasses do not have to check for this again, unless they overwrite the isInterceptorEnabled method to modify the default behavior, and may delegate to writeToLog for actual messages to be written.

Specified by:

invokeUnderTrace in class AbstractTraceInterceptor

logger - the Log to write trace messages to

Returns:

the result of the call to MethodInvocation.proceed()

Throws:

Throwable - if the call to MethodInvocation.proceed() encountered any errors

See Also:

• AbstractTraceInterceptor.isLogEnabled(org.apache.commons.logging.Log)
• AbstractTraceInterceptor.writeToLog(Log, String)
• AbstractTraceInterceptor.writeToLog(Log, String, Throwable)