* Hi,
I want to write an aspect that logs any call to my Package (myPackage) from
outside of it - those I don't expect in other words.
I'm facing the following problems with my newbie code:
1. I thought I could restrict my advice to calls made outside of my
package by using within(! myPackage.bookTrading.*) , but as you can see in
the output below, it still seems to include calls made from within my
package.
2. Where a call is to a method contained in a jar rather than in code for
which the source is included in the project, thisJoinPoint.getTarget().getClass
errors out with a nasty message, something along the lines of "Attempt to
send a message to a non object value". I assume that this behaviour would be
expected, but any ideas how I can trap for this rather than letting an error
be raised.
Really appreciate any help,
Thanks
Rob
public* *aspect* WatchMethodCalls {
*pointcut* *WatchAll*(): *call*(* myPackage*..*.*(..))*
*&&* *within*(! myPackage.bookTrading.*) && *within*(! WatchMethodCalls);
*before*( ) : *WatchAll*( )
{
System.out.println("thisJoinPoint.getTarget().getSignature() " +*
thisJoinPointStaticPart*.getSignature());
System.out.println("thisJoinPoint.getTarget().getSourceLocation() " + *
thisJoinPointStaticPart*.getSourceLocation());
System.out.println("thisJoinPoint.getTarget().getClass() " + *
thisJoinPoint*.getTarget().getClass());
}
Sample output;
*thisJoinPoint.getTarget().getSignature() Vector
myPackage.bookTrading.BookBuyerAgentMalicious.access$0
(BookBuyerAgentMalicious)
thisJoinPoint.getTarget().getSourceLocation() BookBuyerAgentMalicious.java
:288*
*Error occurred in WatchAll:java.lang.NullPointerException
at
apoptotic.BlockMethodCalls.ajc$before$apoptotic_BlockMethodCalls$1$2e232b3e(
BlockMethodCalls.aj:22)
at apoptotic.bookTrading.BookBuyerAgentMalicious$BookNegotiator.action(
BookBuyerAgentMalicious.java:288)
at jade.core.behaviours.Behaviour.actionWrapper(Behaviour.java:340)
*
**
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