/**
* Message contains MethodCall. Execute it against *this* object and return result. Use
* MethodCall.invoke() to do this. Return result.
*/
public Object handle(Message req) throws Exception {
if (server_obj == null) {
log.error(Util.getMessage("NoMethodHandlerIsRegisteredDiscardingRequest"));
return null;
}
if (req == null || req.getLength() == 0) {
log.error(Util.getMessage("MessageOrMessageBufferIsNull"));
return null;
}
Object body =
req_marshaller != null
? req_marshaller.objectFromBuffer(req.getRawBuffer(), req.getOffset(), req.getLength())
: req.getObject();
if (!(body instanceof MethodCall))
throw new IllegalArgumentException("message does not contain a MethodCall object");
MethodCall method_call = (MethodCall) body;
if (log.isTraceEnabled()) log.trace("[sender=%s], method_call: %s", req.getSrc(), method_call);
if (method_call.getMode() == MethodCall.ID) {
if (method_lookup == null)
throw new Exception(
String.format(
"MethodCall uses ID=%d, but method_lookup has not been set", method_call.getId()));
Method m = method_lookup.findMethod(method_call.getId());
if (m == null) throw new Exception("no method found for " + method_call.getId());
method_call.setMethod(m);
}
return method_call.invoke(server_obj);
}
