Merge pull request #950 from cvictory/feature/parameterTypes2

Feature: Add ParameterTypeNames at Invocation 

protocol/invocation.go

@@ -25,6 +25,8 @@ import (
 type Invocation interface {
 	// MethodName gets invocation method name.
 	MethodName() string
+	// ParameterTypeNames gets invocation parameter type names.
+	ParameterTypeNames() []string
 	// ParameterTypes gets invocation parameter types.
 	ParameterTypes() []reflect.Type
 	// ParameterValues gets invocation parameter values.

protocol/invocation/rpcinvocation.go

@@ -35,8 +35,11 @@ import (
 // todo: is it necessary to separate fields of consumer(provider) from RPCInvocation
 // nolint
 type RPCInvocation struct {
-	methodName      string
-	parameterTypes  []reflect.Type
+	methodName string
+	// Parameter Type Names. It is used to specify the parameterType
+	parameterTypeNames []string
+	parameterTypes     []reflect.Type
+
 	parameterValues []reflect.Value
 	arguments       []interface{}
 	reply           interface{}
@@ -80,6 +83,11 @@ func (r *RPCInvocation) ParameterTypes() []reflect.Type {
 	return r.parameterTypes
 }
 
+// ParameterTypeNames gets RPC invocation parameter types of string expression.
+func (r *RPCInvocation) ParameterTypeNames() []string {
+	return r.parameterTypeNames
+}
+
 // ParameterValues gets RPC invocation parameter values.
 func (r *RPCInvocation) ParameterValues() []reflect.Value {
 	return r.parameterValues
@@ -213,6 +221,18 @@ func WithParameterTypes(parameterTypes []reflect.Type) option {
 	}
 }
 
+// WithParameterTypeNames creates option with @parameterTypeNames.
+func WithParameterTypeNames(parameterTypeNames []string) option {
+	return func(invo *RPCInvocation) {
+		if len(parameterTypeNames) == 0 {
+			return
+		}
+		parameterTypeNamesTmp := make([]string, len(parameterTypeNames))
+		copy(parameterTypeNamesTmp, parameterTypeNames)
+		invo.parameterTypeNames = parameterTypeNamesTmp
+	}
+}
+
 // WithParameterValues creates option with @parameterValues
 func WithParameterValues(parameterValues []reflect.Value) option {
 	return func(invo *RPCInvocation) {