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types.go
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types.go
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/*******************************************************************************
* Copyright 2019 Dell Inc.
*
* 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 command
import (
"bytes"
"net/http"
"github.com/edgexfoundry/edgex-go/internal"
"github.com/edgexfoundry/go-mod-core-contracts/clients/logger"
contract "github.com/edgexfoundry/go-mod-core-contracts/models"
)
// DefaultErrorCode the default value used when an error has occurred and no response code was received.
const DefaultErrorCode = 0
// serviceCommand type which encapsulates command information to be sent to the command service.
type serviceCommand struct {
contract.Device
internal.HttpCaller
*http.Request
logger.LoggingClient
}
// Execute sends the command to the command service
func (sc serviceCommand) Execute() (string, int, error) {
sc.LoggingClient.Debug("Issuing" + sc.Request.Method + " command to: " + sc.Request.URL.String())
resp, reqErr := sc.HttpCaller.Do(sc.Request)
if reqErr != nil {
sc.LoggingClient.Error(reqErr.Error())
return "", http.StatusInternalServerError, reqErr
}
buf := new(bytes.Buffer)
_, readErr := buf.ReadFrom(resp.Body)
if readErr != nil {
return "", DefaultErrorCode, readErr
}
return buf.String(), resp.StatusCode, nil
}
func newServiceCommand(
device contract.Device,
caller internal.HttpCaller,
req *http.Request,
lc logger.LoggingClient) serviceCommand {
return serviceCommand{
Device: device,
HttpCaller: caller,
Request: req,
LoggingClient: lc,
}
}