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// Copyright 2015 go-swagger maintainers
//
// 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 fmts
import (
"encoding/json"
"fmt"
"path/filepath"
"strconv"
"github.com/go-openapi/swag"
"gopkg.in/yaml.v2"
)
// YAMLMatcher matches yaml
func YAMLMatcher(path string) bool {
ext := filepath.Ext(path)
return ext == ".yaml" || ext == ".yml"
}
// YAMLToJSON converts YAML unmarshaled data into json compatible data
func YAMLToJSON(data interface{}) (json.RawMessage, error) {
jm, err := transformData(data)
if err != nil {
return nil, err
}
b, err := swag.WriteJSON(jm)
return json.RawMessage(b), err
}
func bytesToYAMLDoc(data []byte) (interface{}, error) {
var document map[interface{}]interface{}
if err := yaml.Unmarshal(data, &document); err != nil {
return nil, err
}
return document, nil
}
func transformData(in interface{}) (out interface{}, err error) {
switch in.(type) {
case map[interface{}]interface{}:
o := make(map[string]interface{})
for k, v := range in.(map[interface{}]interface{}) {
sk := ""
switch k.(type) {
case string:
sk = k.(string)
case int:
sk = strconv.Itoa(k.(int))
default:
return nil, fmt.Errorf("types don't match: expect map key string or int get: %T", k)
}
v, err = transformData(v)
if err != nil {
return nil, err
}
o[sk] = v
}
return o, nil
case []interface{}:
in1 := in.([]interface{})
len1 := len(in1)
o := make([]interface{}, len1)
for i := 0; i < len1; i++ {
o[i], err = transformData(in1[i])
if err != nil {
return nil, err
}
}
return o, nil
}
return in, nil
}
// YAMLDoc loads a yaml document from either http or a file and converts it to json
func YAMLDoc(path string) (json.RawMessage, error) {
yamlDoc, err := YAMLData(path)
if err != nil {
return nil, err
}
data, err := YAMLToJSON(yamlDoc)
if err != nil {
return nil, err
}
return json.RawMessage(data), nil
}
// YAMLData loads a yaml document from either http or a file
func YAMLData(path string) (interface{}, error) {
data, err := swag.LoadFromFileOrHTTP(path)
if err != nil {
return nil, err
}
return bytesToYAMLDoc(data)
}
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