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unmarshal.go
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unmarshal.go
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/*
* Copyright 2019 InfAI (CC SES)
*
* 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 marshaller
import (
"bytes"
"encoding/json"
"errors"
"github.com/SENERGY-Platform/external-task-worker/lib/devicerepository/model"
"io/ioutil"
"net/http"
"net/url"
"runtime/debug"
)
func (this *Marshaller) UnmarshalV2(request UnmarshallingV2Request) (characteristicData interface{}, err error) {
return SendUnmarshalRequest(this.url+"/v2/unmarshal", request)
}
func (this *Marshaller) Unmarshal(characteristicId string, serviceId string, message map[string]string, hints []string) (characteristicData interface{}, err error) {
return SendUnmarshalRequest(this.url+"/unmarshal/"+url.PathEscape(serviceId)+"/"+url.PathEscape(characteristicId), UnmarshallingRequest{
Message: message,
ContentVariableHints: hints,
})
}
func (this *Marshaller) UnmarshalFromService(characteristicId string, service model.Service, message map[string]string, hints []string) (characteristicData interface{}, err error) {
return SendUnmarshalRequest(this.url+"/unmarshal", UnmarshallingRequest{
CharacteristicId: characteristicId,
Service: service,
Message: message,
ContentVariableHints: hints,
})
}
func (this *Marshaller) UnmarshalFromServiceAndProtocol(characteristicId string, service model.Service, protocol model.Protocol, message map[string]string, hints []string) (characteristicData interface{}, err error) {
return SendUnmarshalRequest(this.url+"/unmarshal", UnmarshallingRequest{
CharacteristicId: characteristicId,
Service: service,
Protocol: &protocol,
Message: message,
ContentVariableHints: hints,
})
}
func SendUnmarshalRequest(url string, request interface{}) (characteristicData interface{}, err error) {
body, err := json.Marshal(request)
if err != nil {
debug.PrintStack()
return characteristicData, err
}
resp, err := http.Post(url, "application/json", bytes.NewBuffer(body))
if err != nil {
debug.PrintStack()
return characteristicData, err
}
defer resp.Body.Close()
if resp.StatusCode != 200 {
temp, _ := ioutil.ReadAll(resp.Body)
debug.PrintStack()
return characteristicData, errors.New(string(temp))
}
err = json.NewDecoder(resp.Body).Decode(&characteristicData)
if err != nil {
debug.PrintStack()
return characteristicData, err
}
return characteristicData, err
}