/
redis_cluster_reply.go
403 lines (378 loc) · 7.71 KB
/
redis_cluster_reply.go
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package nosql
import (
"errors"
"fmt"
"strconv"
)
var ErrNegativeInt = errors.New("redis cluster: unexpected value for Uint64")
func (r *Redis) Int(reply interface{}, err error) (int, error) {
if err != nil {
return 0, err
}
switch reply := reply.(type) {
case int:
return reply, nil
case int8:
return int(reply), nil
case int16:
return int(reply), nil
case int32:
return int(reply), nil
case int64:
x := int(reply)
if int64(x) != reply {
return 0, strconv.ErrRange
}
return x, nil
case uint:
n := int(reply)
if n < 0 {
return 0, strconv.ErrRange
}
return n, nil
case uint8:
return int(reply), nil
case uint16:
return int(reply), nil
case uint32:
n := int(reply)
if n < 0 {
return 0, strconv.ErrRange
}
return n, nil
case uint64:
n := int(reply)
if n < 0 {
return 0, strconv.ErrRange
}
return n, nil
case []byte:
data := string(reply)
if len(data) == 0 {
return 0, ErrNil
}
n, err := strconv.ParseInt(data, 10, 0)
return int(n), err
case string:
if len(reply) == 0 {
return 0, ErrNil
}
n, err := strconv.ParseInt(reply, 10, 0)
return int(n), err
case nil:
return 0, ErrNil
case error:
return 0, reply
}
return 0, fmt.Errorf("redis cluster: unexpected type for Int, got type %T", reply)
}
func (r *Redis) Int64(reply interface{}, err error) (int64, error) {
if err != nil {
return 0, err
}
switch reply := reply.(type) {
case int:
return int64(reply), nil
case int8:
return int64(reply), nil
case int16:
return int64(reply), nil
case int32:
return int64(reply), nil
case int64:
return reply, nil
case uint:
n := int64(reply)
if n < 0 {
return 0, strconv.ErrRange
}
return n, nil
case uint8:
return int64(reply), nil
case uint16:
return int64(reply), nil
case uint32:
return int64(reply), nil
case uint64:
n := int64(reply)
if n < 0 {
return 0, strconv.ErrRange
}
return n, nil
case []byte:
data := string(reply)
if len(data) == 0 {
return 0, ErrNil
}
n, err := strconv.ParseInt(data, 10, 64)
return n, err
case string:
if len(reply) == 0 {
return 0, ErrNil
}
n, err := strconv.ParseInt(reply, 10, 64)
return n, err
case nil:
return 0, ErrNil
case error:
return 0, reply
}
return 0, fmt.Errorf("redis cluster: unexpected type for Int64, got type %T", reply)
}
func (r *Redis) Uint64(reply interface{}, err error) (uint64, error) {
if err != nil {
return 0, err
}
switch reply := reply.(type) {
case uint:
return uint64(reply), nil
case uint8:
return uint64(reply), nil
case uint16:
return uint64(reply), nil
case uint32:
return uint64(reply), nil
case uint64:
return reply, nil
case int:
if reply < 0 {
return 0, ErrNegativeInt
}
return uint64(reply), nil
case int8:
if reply < 0 {
return 0, ErrNegativeInt
}
return uint64(reply), nil
case int16:
if reply < 0 {
return 0, ErrNegativeInt
}
return uint64(reply), nil
case int32:
if reply < 0 {
return 0, ErrNegativeInt
}
return uint64(reply), nil
case int64:
if reply < 0 {
return 0, ErrNegativeInt
}
return uint64(reply), nil
case []byte:
data := string(reply)
if len(data) == 0 {
return 0, ErrNil
}
n, err := strconv.ParseUint(data, 10, 64)
return n, err
case string:
if len(reply) == 0 {
return 0, ErrNil
}
n, err := strconv.ParseUint(reply, 10, 64)
return n, err
case nil:
return 0, ErrNil
case error:
return 0, reply
}
return 0, fmt.Errorf("redis cluster: unexpected type for Uint64, got type %T", reply)
}
func (r *Redis) Float64(reply interface{}, err error) (float64, error) {
if err != nil {
return 0, err
}
var value float64
err = nil
switch v := reply.(type) {
case float32:
value = float64(v)
case float64:
value = v
case int:
value = float64(v)
case int8:
value = float64(v)
case int16:
value = float64(v)
case int32:
value = float64(v)
case int64:
value = float64(v)
case uint:
value = float64(v)
case uint8:
value = float64(v)
case uint16:
value = float64(v)
case uint32:
value = float64(v)
case uint64:
value = float64(v)
case []byte:
data := string(v)
if len(data) == 0 {
return 0, ErrNil
}
value, err = strconv.ParseFloat(string(v), 64)
case string:
if len(v) == 0 {
return 0, ErrNil
}
value, err = strconv.ParseFloat(v, 64)
case nil:
err = ErrNil
case error:
err = v
default:
err = fmt.Errorf("redis cluster: unexpected type for Float64, got type %T", v)
}
return value, err
}
func (r *Redis) Bool(reply interface{}, err error) (bool, error) {
if err != nil {
return false, err
}
switch reply := reply.(type) {
case bool:
return reply, nil
case int64:
return reply != 0, nil
case []byte:
data := string(reply)
if len(data) == 0 {
return false, ErrNil
}
return strconv.ParseBool(data)
case string:
if len(reply) == 0 {
return false, ErrNil
}
return strconv.ParseBool(reply)
case nil:
return false, ErrNil
case error:
return false, reply
}
return false, fmt.Errorf("redis cluster: unexpected type for Bool, got type %T", reply)
}
func (r *Redis) Bytes(reply interface{}, err error) ([]byte, error) {
if err != nil {
return nil, err
}
switch reply := reply.(type) {
case []byte:
if len(reply) == 0 {
return nil, ErrNil
}
return reply, nil
case string:
data := []byte(reply)
if len(data) == 0 {
return nil, ErrNil
}
return data, nil
case nil:
return nil, ErrNil
case error:
return nil, reply
}
return nil, fmt.Errorf("redis cluster: unexpected type for Bytes, got type %T", reply)
}
func (r *Redis) String(reply interface{}, err error) (string, error) {
if err != nil {
return "", err
}
value := ""
err = nil
switch v := reply.(type) {
case string:
if len(v) == 0 {
return "", ErrNil
}
value = v
case []byte:
if len(v) == 0 {
return "", ErrNil
}
value = string(v)
case int:
value = strconv.FormatInt(int64(v), 10)
case int8:
value = strconv.FormatInt(int64(v), 10)
case int16:
value = strconv.FormatInt(int64(v), 10)
case int32:
value = strconv.FormatInt(int64(v), 10)
case int64:
value = strconv.FormatInt(v, 10)
case uint:
value = strconv.FormatUint(uint64(v), 10)
case uint8:
value = strconv.FormatUint(uint64(v), 10)
case uint16:
value = strconv.FormatUint(uint64(v), 10)
case uint32:
value = strconv.FormatUint(uint64(v), 10)
case uint64:
value = strconv.FormatUint(v, 10)
case float32:
value = strconv.FormatFloat(float64(v), 'f', -1, 32)
case float64:
value = strconv.FormatFloat(v, 'f', -1, 64)
case bool:
value = strconv.FormatBool(v)
case nil:
err = ErrNil
case error:
err = v
default:
err = fmt.Errorf("redis cluster: unexpected type for String, got type %T", v)
}
return value, err
}
func (r *Redis) Strings(reply interface{}, err error) ([]string, error) {
if err != nil {
return nil, err
}
switch reply := reply.(type) {
case []interface{}:
result := make([]string, len(reply))
for i := range reply {
if reply[i] == nil {
continue
}
switch subReply := reply[i].(type) {
case string:
result[i] = subReply
case []byte:
result[i] = string(subReply)
default:
return nil, fmt.Errorf("redis cluster: unexpected element type for String, got type %T", reply[i])
}
}
return result, nil
case []string:
return reply, nil
case nil:
return nil, ErrNil
case error:
return nil, reply
}
return nil, fmt.Errorf("redis cluster: unexpected type for Strings, got type %T", reply)
}
func (r *Redis) Values(reply interface{}, err error) ([]interface{}, error) {
if err != nil {
return nil, err
}
switch reply := reply.(type) {
case []interface{}:
return reply, nil
case nil:
return nil, ErrNil
case error:
return nil, reply
}
return nil, fmt.Errorf("redis cluster: unexpected type for Values, got type %T", reply)
}