1 // Copyright 2015 xeipuuv ( https://github.com/xeipuuv ) 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 // author xeipuuv 16 // author-github https://github.com/xeipuuv 17 // author-mail xeipuuv@gmail.com 18 // 19 // repository-name gojsonschema 20 // repository-desc An implementation of JSON Schema, based on IETF's draft v4 - Go language. 21 // 22 // description Helper structure to handle schema types, and the combination of them. 23 // 24 // created 28-02-2013 25 26 package gojsonschema 27 28 import ( 29 "errors" 30 "fmt" 31 "strings" 32 ) 33 34 type jsonSchemaType struct { 35 types []string 36 } 37 38 // Is the schema typed ? that is containing at least one type 39 // When not typed, the schema does not need any type validation 40 func (t *jsonSchemaType) IsTyped() bool { 41 return len(t.types) > 0 42 } 43 44 func (t *jsonSchemaType) Add(etype string) error { 45 46 if !isStringInSlice(JSON_TYPES, etype) { 47 return errors.New(formatErrorDescription(Locale.NotAValidType(), ErrorDetails{"given": "/" + etype + "/", "expected": JSON_TYPES})) 48 } 49 50 if t.Contains(etype) { 51 return errors.New(formatErrorDescription(Locale.Duplicated(), ErrorDetails{"type": etype})) 52 } 53 54 t.types = append(t.types, etype) 55 56 return nil 57 } 58 59 func (t *jsonSchemaType) Contains(etype string) bool { 60 61 for _, v := range t.types { 62 if v == etype { 63 return true 64 } 65 } 66 67 return false 68 } 69 70 func (t *jsonSchemaType) String() string { 71 72 if len(t.types) == 0 { 73 return STRING_UNDEFINED // should never happen 74 } 75 76 // Displayed as a list [type1,type2,...] 77 if len(t.types) > 1 { 78 return fmt.Sprintf("[%s]", strings.Join(t.types, ",")) 79 } 80 81 // Only one type: name only 82 return t.types[0] 83 } 84