Spring AOP - method's returned object's class

[kpydipati]

Hi

I have encountered the following road block. I just want to clarify early-on that this is purely Spring AOP issue..though I mention about webservice just explain my issue in detail.

I have a method like this.

public Book getBook( String arg) throws ApplicationFault, Exception {
....
....
}

This is a SOAP webservice method which on-sucess returns Book object (since it is web service, it returns Book xml to caller using CXF)

I have created Spring AOP pointcut like this

@AfterThrowing(throwing="thr",pointcut="annotatedW ebServiceEndPoints()")
public Response exceptionHandler(JoinPoint jp, Throwable thr) {
.....
.....
log.info("thr.getClass()=" + thr.getClass().getCanonicalName());
....
....
}

Book.java extends Response
---------------------------
public Book extends Response{
private String bookName;

public String getBookName(){
}

public void setBookName(String bookName){
this.bookName= bookName;
}

}

Response.java
-------------
Public Response {
private String errorCode;

public String getErrorCode(){
}

public void setErrorCode(String errorCode){
this.errorCode = errorCode;
}

}

In order to send back proper errorCode back to caller..in case of any exception.., I need to know whattype of object..the method is returning. Here in this case, returned object's class type is Book. So, if somehow..I know the *returned* object's class..then.., I can create that object (Book) using refections and populate errorCode on Book and return back from exceptionHandler. Since, JoinPoint does not have any facility to know the MethodSignature from which I can get the class type of *returned* object-class, I kind of struck here.

Is there a way to get the class type of *method's returned* object class type in the case of @AfterThrowing.

This is because my web services need the same object to be returned whatever in the case of error/exception with errorCode.

[kpydipati]

Hi

After some more googling and research, I found the solution. I posting this so that it helps others if they have similar issue.

MethodSignature ms = (org.aspectj.lang.reflect.MethodSignature) jp
.getSignature();
Class clazz = ms.getMethod().getReturnType();

//clazz is returned object's class type