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util.go
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/
util.go
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/*
* Copyright 2021 CloudWeGo Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package thrift
import (
"context"
"encoding/json"
"fmt"
"strconv"
"strings"
"github.com/cloudwego/kitex/pkg/generic/descriptor"
)
func assertType(expected, but descriptor.Type) error {
if expected == but {
return nil
}
return fmt.Errorf("need %s type, but got: %s", expected, but)
}
func splitType(t string) (pkg, name string) {
idx := strings.LastIndex(t, ".")
if idx == -1 {
return "", t
}
return t[:idx], t[idx+1:]
}
func requestMappingValue(ctx context.Context, req *descriptor.HTTPRequest, field *descriptor.FieldDescriptor) (interface{}, error) {
val, ok, err := field.HTTPMapping.Request(ctx, req, field)
if err != nil {
return nil, err
}
if !ok {
return nil, nil
}
t := field.Type
switch v := val.(type) {
case nil:
// json null
return nil, nil
case bool:
return v, nil
case json.Number:
return buildinTypeFromString(string(v), t)
case string:
return buildinTypeFromString(v, t)
case map[string]interface{}:
return v, nil
case []interface{}:
return v, nil
}
return val, nil
}
func buildinTypeFromString(s string, t *descriptor.TypeDescriptor) (interface{}, error) {
tt := t.Type
switch tt {
case descriptor.BOOL:
switch s {
case "true":
return true, nil
case "false":
return false, nil
}
case descriptor.I08:
i, err := strconv.ParseInt(s, 10, 8)
if err != nil {
return nil, err
}
return int8(i), nil
case descriptor.I16:
i, err := strconv.ParseInt(s, 10, 16)
if err != nil {
return nil, err
}
return int16(i), nil
case descriptor.I32:
i, err := strconv.ParseInt(s, 10, 32)
if err != nil {
return nil, err
}
return int32(i), nil
case descriptor.I64:
i, err := strconv.ParseInt(s, 10, 64)
if err != nil {
return nil, err
}
return i, nil
case descriptor.DOUBLE:
return strconv.ParseFloat(s, 64)
case descriptor.STRING:
return s, nil
case descriptor.LIST:
strs := strings.Split(s, ",")
if len(strs) == 0 {
return nil, fmt.Errorf("expected list, got:%s", s)
}
res := make([]interface{}, len(strs))
for i, str := range strs {
val, err := buildinTypeFromString(str, t.Elem)
if err != nil {
return nil, err
}
res[i] = val
}
return res, nil
}
return nil, fmt.Errorf("unsupported type:%s for parse buildin types from string", tt)
}
func buildinTypeIntoString(val interface{}) string {
switch v := val.(type) {
case bool:
return strconv.FormatBool(v)
case int8:
return strconv.FormatInt(int64(v), 10)
case int32:
return strconv.FormatInt(int64(v), 10)
case int64:
return strconv.FormatInt(v, 10)
case float64:
return strconv.FormatFloat(v, 'f', -1, 64)
case string:
return v
}
return ""
}