github.com/cloudwego/dynamicgo@v0.2.6-0.20240519101509-707f41b6b834/thrift/annotation/key_mapping.go (about) 1 /** 2 * Copyright 2023 CloudWeGo Authors. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package annotation 18 19 import ( 20 "context" 21 22 "github.com/cloudwego/dynamicgo/thrift" 23 "github.com/cloudwego/thriftgo/parser" 24 ) 25 26 const ( 27 APIKey thrift.AnnoType = 501 28 // NameCase thrift.AnnoType = 502 29 30 APIKeyName string = "api.key" 31 ) 32 33 var ( 34 NameCaseKeys = []string{"agw.to_snake", "janus.to_snake", "agw.to_lower_camel_case", "janus.to_lower_camel_case"} 35 ) 36 37 type keyMappingAnnotation struct { 38 typ thrift.AnnoID 39 } 40 41 func newKeyMappingAnnotation(typ thrift.AnnoID) keyMappingAnnotation { 42 return keyMappingAnnotation{ 43 typ: typ, 44 } 45 } 46 47 func (self keyMappingAnnotation) ID() thrift.AnnoID { 48 return self.typ 49 } 50 51 func (self keyMappingAnnotation) Make(ctx context.Context, values []parser.Annotation, ast interface{}) (interface{}, error) { 52 if len(values) == 0 { 53 return nil, nil 54 } 55 for _, v := range values { 56 // NOTICE: we only handle the first value here 57 if len(v.Values) == 1 { 58 switch self.typ.Type() { 59 case APIKey: 60 return &apiKey{v.Values[0]}, nil 61 default: 62 return nil, errNotImplemented("keyMappingAnnotation must have APIKey type") 63 } 64 } 65 } 66 return nil, nil 67 } 68 69 type apiKey struct { 70 Value string 71 } 72 73 func (m apiKey) Map(ctx context.Context, key string) string { 74 return m.Value 75 }