package runtime import ( "encoding/base64" "fmt" "strconv" "strings" "github.com/golang/protobuf/jsonpb" "github.com/golang/protobuf/ptypes/duration" "github.com/golang/protobuf/ptypes/timestamp" "github.com/golang/protobuf/ptypes/wrappers" ) // String just returns the given string. // It is just for compatibility to other types. func String(val string) (string, error) { return val, nil } // StringSlice converts 'val' where individual strings are separated by // 'sep' into a string slice. func StringSlice(val, sep string) ([]string, error) { return strings.Split(val, sep), nil } // Bool converts the given string representation of a boolean value into bool. func Bool(val string) (bool, error) { return strconv.ParseBool(val) } // BoolSlice converts 'val' where individual booleans are separated by // 'sep' into a bool slice. func BoolSlice(val, sep string) ([]bool, error) { s := strings.Split(val, sep) values := make([]bool, len(s)) for i, v := range s { value, err := Bool(v) if err != nil { return values, err } values[i] = value } return values, nil } // Float64 converts the given string representation into representation of a floating point number into float64. func Float64(val string) (float64, error) { return strconv.ParseFloat(val, 64) } // Float64Slice converts 'val' where individual floating point numbers are separated by // 'sep' into a float64 slice. func Float64Slice(val, sep string) ([]float64, error) { s := strings.Split(val, sep) values := make([]float64, len(s)) for i, v := range s { value, err := Float64(v) if err != nil { return values, err } values[i] = value } return values, nil } // Float32 converts the given string representation of a floating point number into float32. func Float32(val string) (float32, error) { f, err := strconv.ParseFloat(val, 32) if err != nil { return 0, err } return float32(f), nil } // Float32Slice converts 'val' where individual floating point numbers are separated by // 'sep' into a float32 slice. func Float32Slice(val, sep string) ([]float32, error) { s := strings.Split(val, sep) values := make([]float32, len(s)) for i, v := range s { value, err := Float32(v) if err != nil { return values, err } values[i] = value } return values, nil } // Int64 converts the given string representation of an integer into int64. func Int64(val string) (int64, error) { return strconv.ParseInt(val, 0, 64) } // Int64Slice converts 'val' where individual integers are separated by // 'sep' into a int64 slice. func Int64Slice(val, sep string) ([]int64, error) { s := strings.Split(val, sep) values := make([]int64, len(s)) for i, v := range s { value, err := Int64(v) if err != nil { return values, err } values[i] = value } return values, nil } // Int32 converts the given string representation of an integer into int32. func Int32(val string) (int32, error) { i, err := strconv.ParseInt(val, 0, 32) if err != nil { return 0, err } return int32(i), nil } // Int32Slice converts 'val' where individual integers are separated by // 'sep' into a int32 slice. func Int32Slice(val, sep string) ([]int32, error) { s := strings.Split(val, sep) values := make([]int32, len(s)) for i, v := range s { value, err := Int32(v) if err != nil { return values, err } values[i] = value } return values, nil } // Uint64 converts the given string representation of an integer into uint64. func Uint64(val string) (uint64, error) { return strconv.ParseUint(val, 0, 64) } // Uint64Slice converts 'val' where individual integers are separated by // 'sep' into a uint64 slice. func Uint64Slice(val, sep string) ([]uint64, error) { s := strings.Split(val, sep) values := make([]uint64, len(s)) for i, v := range s { value, err := Uint64(v) if err != nil { return values, err } values[i] = value } return values, nil } // Uint32 converts the given string representation of an integer into uint32. func Uint32(val string) (uint32, error) { i, err := strconv.ParseUint(val, 0, 32) if err != nil { return 0, err } return uint32(i), nil } // Uint32Slice converts 'val' where individual integers are separated by // 'sep' into a uint32 slice. func Uint32Slice(val, sep string) ([]uint32, error) { s := strings.Split(val, sep) values := make([]uint32, len(s)) for i, v := range s { value, err := Uint32(v) if err != nil { return values, err } values[i] = value } return values, nil } // Bytes converts the given string representation of a byte sequence into a slice of bytes // A bytes sequence is encoded in URL-safe base64 without padding func Bytes(val string) ([]byte, error) { b, err := base64.StdEncoding.DecodeString(val) if err != nil { b, err = base64.URLEncoding.DecodeString(val) if err != nil { return nil, err } } return b, nil } // BytesSlice converts 'val' where individual bytes sequences, encoded in URL-safe // base64 without padding, are separated by 'sep' into a slice of bytes slices slice. func BytesSlice(val, sep string) ([][]byte, error) { s := strings.Split(val, sep) values := make([][]byte, len(s)) for i, v := range s { value, err := Bytes(v) if err != nil { return values, err } values[i] = value } return values, nil } // Timestamp converts the given RFC3339 formatted string into a timestamp.Timestamp. func Timestamp(val string) (*timestamp.Timestamp, error) { var r *timestamp.Timestamp err := jsonpb.UnmarshalString(val, r) return r, err } // Duration converts the given string into a timestamp.Duration. func Duration(val string) (*duration.Duration, error) { var r *duration.Duration err := jsonpb.UnmarshalString(val, r) return r, err } // Enum converts the given string into an int32 that should be type casted into the // correct enum proto type. func Enum(val string, enumValMap map[string]int32) (int32, error) { e, ok := enumValMap[val] if ok { return e, nil } i, err := Int32(val) if err != nil { return 0, fmt.Errorf("%s is not valid", val) } for _, v := range enumValMap { if v == i { return i, nil } } return 0, fmt.Errorf("%s is not valid", val) } // EnumSlice converts 'val' where individual enums are separated by 'sep' // into a int32 slice. Each individual int32 should be type casted into the // correct enum proto type. func EnumSlice(val, sep string, enumValMap map[string]int32) ([]int32, error) { s := strings.Split(val, sep) values := make([]int32, len(s)) for i, v := range s { value, err := Enum(v, enumValMap) if err != nil { return values, err } values[i] = value } return values, nil } /* Support fot google.protobuf.wrappers on top of primitive types */ // StringValue well-known type support as wrapper around string type func StringValue(val string) (*wrappers.StringValue, error) { return &wrappers.StringValue{Value: val}, nil } // FloatValue well-known type support as wrapper around float32 type func FloatValue(val string) (*wrappers.FloatValue, error) { parsedVal, err := Float32(val) return &wrappers.FloatValue{Value: parsedVal}, err } // DoubleValue well-known type support as wrapper around float64 type func DoubleValue(val string) (*wrappers.DoubleValue, error) { parsedVal, err := Float64(val) return &wrappers.DoubleValue{Value: parsedVal}, err } // BoolValue well-known type support as wrapper around bool type func BoolValue(val string) (*wrappers.BoolValue, error) { parsedVal, err := Bool(val) return &wrappers.BoolValue{Value: parsedVal}, err } // Int32Value well-known type support as wrapper around int32 type func Int32Value(val string) (*wrappers.Int32Value, error) { parsedVal, err := Int32(val) return &wrappers.Int32Value{Value: parsedVal}, err } // UInt32Value well-known type support as wrapper around uint32 type func UInt32Value(val string) (*wrappers.UInt32Value, error) { parsedVal, err := Uint32(val) return &wrappers.UInt32Value{Value: parsedVal}, err } // Int64Value well-known type support as wrapper around int64 type func Int64Value(val string) (*wrappers.Int64Value, error) { parsedVal, err := Int64(val) return &wrappers.Int64Value{Value: parsedVal}, err } // UInt64Value well-known type support as wrapper around uint64 type func UInt64Value(val string) (*wrappers.UInt64Value, error) { parsedVal, err := Uint64(val) return &wrappers.UInt64Value{Value: parsedVal}, err } // BytesValue well-known type support as wrapper around bytes[] type func BytesValue(val string) (*wrappers.BytesValue, error) { parsedVal, err := Bytes(val) return &wrappers.BytesValue{Value: parsedVal}, err }