I would like to add a log4j.Logger private static field into a multitude of
types. For instance, into all the types annotated with the @Path annotation.
This my current aspect code:
public aspect LoggingAspect {
public interface HttpHandlerType {}
declare parents: (@Path *) implements HttpHandlerType;
public Logger HttpHandlerType.Log = Logger.getLogger(getClass());
pointcut httpHandlerMethods(HttpHandlerType o) :
within(HttpHandlerType+) &&
execution(@(GET || PUT || POST || DELETE) public * *.*(..)) &&
this(o);
before(HttpHandlerType o): httpHandlerMethods(o) {
if (o.Log.isInfoEnabled()) {
o.Log.info(logMethod(thisJoinPoint));
}
}
after(HttpHandlerType o) returning (Object result):
httpHandlerMethods(o) {
if (o.Log.isDebugEnabled()) {
o.Log.debug(logMethod(thisJoinPoint, result));
}
}
after(HttpHandlerType o) throwing (Exception e):
httpHandlerMethods(o) {
if (o.Log.isEnabledFor(Level.ERROR)) {
o.Log.error(logMethod(thisJoinPoint), e);
}
}
private static String logMethod(JoinPoint jp) {
...
}
private static String logMethod(JoinPoint jp, Object result) {
...
}
}
The problem is that the Log field is an instance field, while it should be
a static one. But one cannot specify a static field inside an interface.
So my question is how to change the aspect implementation to make the Log a
static field?
Thanks.
--
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==============================
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