io.shadowstack

Interface MethodForwardingInterceptor

public interface MethodForwardingInterceptor

Method Summary

Modifier and Type	Method and Description
Object	intercept(Object[] inputs, Object adaptedInstance, Object result) Intercept a call forwarded by a MethodRouter.

Method Detail

intercept

Object intercept(Object[] inputs,
                 Object adaptedInstance,
                 Object result)
          throws AdapterException

Intercept a call forwarded by a MethodRouter. This is guaranteed to be called after consumed arguments have been converted and before the produced result is converted, but may be called before or after the actual call to the adapted instance's method has been made. If it returns any non-null value, this will replace or supercede any result returned by the adapted instance.

Parameters:

inputs - The inputs passed by the caller to the exposed interface, converted into a set of arguments accepted by the adapted instance.

adaptedInstance - The adapted instance itself.

result - If the adapted instance's method has been called, this will be the result (if any) returned by it. If the adapted instance has not yet been invoked, this will be null.

Returns:

A result of the type produced by the adapted instance. If the return type of the method is void, this value will be ignored. Otherwise, any non-null value will replace whatever would have been returned by the adapted instance. If this interceptor is called before the method is invoked on the adapted instance, then a non-null result will prevent that invocation from ever occurring.

Throws:

AdapterException