go.uber.org/yarpc@v1.72.1/transport/grpc/util.go (about)

     1  // Copyright (c) 2022 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package grpc
    22  
    23  import (
    24  	"fmt"
    25  	"net/url"
    26  
    27  	"go.uber.org/yarpc/pkg/procedure"
    28  	"go.uber.org/yarpc/yarpcerrors"
    29  )
    30  
    31  const defaultServiceName = "__default__"
    32  
    33  func procedureNameToServiceNameMethodName(procedureName string) (string, string, error) {
    34  	serviceName, methodName := procedure.FromName(procedureName)
    35  	if serviceName == "" {
    36  		return "", "", yarpcerrors.InvalidArgumentErrorf("invalid procedure name: %s", procedureName)
    37  	}
    38  	if methodName == "" {
    39  		methodName = serviceName
    40  		serviceName = defaultServiceName
    41  	}
    42  	return url.QueryEscape(serviceName), url.QueryEscape(methodName), nil
    43  }
    44  
    45  func procedureNameToFullMethod(procedureName string) (string, error) {
    46  	serviceName, methodName, err := procedureNameToServiceNameMethodName(procedureName)
    47  	if err != nil {
    48  		return "", err
    49  	}
    50  	return toFullMethod(serviceName, methodName), nil
    51  }
    52  
    53  func toFullMethod(serviceName string, methodName string) string {
    54  	if serviceName == "" {
    55  		serviceName = defaultServiceName
    56  	}
    57  	return fmt.Sprintf("/%s/%s", serviceName, methodName)
    58  }
    59  
    60  func procedureToName(serviceName string, methodName string) (string, error) {
    61  	serviceName, err := url.QueryUnescape(serviceName)
    62  	if err != nil {
    63  		return "", err
    64  	}
    65  	methodName, err = url.QueryUnescape(methodName)
    66  	if err != nil {
    67  		return "", err
    68  	}
    69  	if serviceName == defaultServiceName {
    70  		return methodName, nil
    71  	}
    72  	return procedure.ToName(serviceName, methodName), nil
    73  }