blob: 15dc7803d8bffd37a06c430cb621d09f809d23e2 [file] [log] [blame]
Don Newton379ae252019-04-01 12:17:06 -04001/*
2 *
3 * Copyright 2018 gRPC authors.
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 */
18
19package binarylog
20
21import (
22 "errors"
23 "strings"
24)
25
26// parseMethodName splits service and method from the input. It expects format
27// "/service/method".
28//
29// TODO: move to internal/grpcutil.
30func parseMethodName(methodName string) (service, method string, _ error) {
31 if !strings.HasPrefix(methodName, "/") {
32 return "", "", errors.New("invalid method name: should start with /")
33 }
34 methodName = methodName[1:]
35
36 pos := strings.LastIndex(methodName, "/")
37 if pos < 0 {
38 return "", "", errors.New("invalid method name: suffix /method is missing")
39 }
40 return methodName[:pos], methodName[pos+1:], nil
41}