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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 spec
import (
"encoding/json"
"fmt"
"reflect"
"strconv"
"strings"
"github.com/go-openapi/swag"
)
// Responses is a container for the expected responses of an operation.
// The container maps a HTTP response code to the expected response.
// It is not expected from the documentation to necessarily cover all possible HTTP response codes,
// since they may not be known in advance. However, it is expected from the documentation to cover
// a successful operation response and any known errors.
//
// The `default` can be used a default response object for all HTTP codes that are not covered
// individually by the specification.
//
// The `Responses Object` MUST contain at least one response code, and it SHOULD be the response
// for a successful operation call.
//
// For more information: http://goo.gl/8us55a#responsesObject
type Responses struct {
VendorExtensible
ResponsesProps
}
// JSONLookup implements an interface to customize json pointer lookup
func (r Responses) JSONLookup(token string) (interface{}, error) {
if token == "default" {
return r.Default, nil
}
if ex, ok := r.Extensions[token]; ok {
return &ex, nil
}
if i, err := strconv.Atoi(token); err == nil {
if scr, ok := r.StatusCodeResponses[i]; ok {
return scr, nil
}
}
return nil, fmt.Errorf("object has no field %q", token)
}
// UnmarshalJSON hydrates this items instance with the data from JSON
func (r *Responses) UnmarshalJSON(data []byte) error {
if err := json.Unmarshal(data, &r.ResponsesProps); err != nil {
return err
}
if err := json.Unmarshal(data, &r.VendorExtensible); err != nil {
return err
}
if reflect.DeepEqual(ResponsesProps{}, r.ResponsesProps) {
r.ResponsesProps = ResponsesProps{}
}
return nil
}
// MarshalJSON converts this items object to JSON
func (r Responses) MarshalJSON() ([]byte, error) {
b1, err := json.Marshal(r.ResponsesProps)
if err != nil {
return nil, err
}
b2, err := json.Marshal(r.VendorExtensible)
if err != nil {
return nil, err
}
concated := swag.ConcatJSON(b1, b2)
return concated, nil
}
// ResponsesProps describes all responses for an operation.
// It tells what is the default response and maps all responses with a
// HTTP status code.
type ResponsesProps struct {
Default *Response
StatusCodeResponses map[int]Response
}
// MarshalJSON marshals responses as JSON
func (r ResponsesProps) MarshalJSON() ([]byte, error) {
toser := map[string]Response{}
if r.Default != nil {
toser["default"] = *r.Default
}
for k, v := range r.StatusCodeResponses {
toser[strconv.Itoa(k)] = v
}
return json.Marshal(toser)
}
// UnmarshalJSON unmarshals responses from JSON
func (r *ResponsesProps) UnmarshalJSON(data []byte) error {
var res map[string]json.RawMessage
if err := json.Unmarshal(data, &res); err != nil {
return err
}
if v, ok := res["default"]; ok {
var defaultRes Response
if err := json.Unmarshal(v, &defaultRes); err != nil {
return err
}
r.Default = &defaultRes
delete(res, "default")
}
for k, v := range res {
if !strings.HasPrefix(k, "x-") {
var statusCodeResp Response
if err := json.Unmarshal(v, &statusCodeResp); err != nil {
return err
}
if nk, err := strconv.Atoi(k); err == nil {
if r.StatusCodeResponses == nil {
r.StatusCodeResponses = map[int]Response{}
}
r.StatusCodeResponses[nk] = statusCodeResp
}
}
}
return nil
}
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