def validateAndExecuteRequest(self, input):
'''Match a client request to the corresponding service and method on
the server, and then call the service.'''
# Parse and validate the client's request
self.id = "%f" % time.time()
RPCStatus.start_request(self.id)
try:
request = self.parseServiceRequest(input)
except error.BadRequestDataError, e:
RPCStatus.bad_request(self.id)
return self.handleError(e)
class RPCHandler(Handler):
"""RPC Handler
"""
def __init__(self,rpc_server):
self.rpc_server = rpc_server
def handle(self,recv):
# Evaluate and execute the request
rpcResponse = self.validateAndExecuteRequest(recv)
logging.debug("Response to return to client \n %s" % rpcResponse)
return rpcResponse.SerializeToString()
def validateAndExecuteRequest(self, input):
'''Match a client request to the corresponding service and method on
the server, and then call the service.'''
# Parse and validate the client's request
self.id = "%f" % time.time()
RPCStatus.start_request(self.id)
try:
request = self.parseServiceRequest(input)
except error.BadRequestDataError, e:
RPCStatus.bad_request(self.id)
return self.handleError(e)
# Retrieve the requested service
try:
service = self.retrieveService(request.service_name)
except error.ServiceNotFoundError, e:
RPCStatus.service_not_found(request.service_name,self.id)
return self.handleError(e)
except error.BadRequestDataError, e:
RPCStatus.bad_request(self.id)
return self.handleError(e)
# Retrieve the requested service
try:
service = self.retrieveService(request.service_name)
except error.ServiceNotFoundError, e:
RPCStatus.service_not_found(request.service_name,self.id)
return self.handleError(e)
# Retrieve the requested method
try:
method = self.retrieveMethod(service, request.method_name)
except error.MethodNotFoundError, e:
RPCStatus.method_not_found(request.service_name,request.method_name,self.id)
return self.handleError(e)
# Retrieve the protocol message
try:
proto_request = self.retrieveProtoRequest(service, method, request)
except error.BadRequestProtoError, e:
return self.handleError(e)
# Execute the specified method of the service with the requested params
try:
response = self.callMethod(service, method, proto_request)
RPCStatus.end_request(request.service_name,request.method_name,self.id)
except error.RpcError, e:
return self.handleError(e)