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collector_server.go
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collector_server.go
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package serversupport
import (
"encoding/json"
"errors"
"github.com/danenmao/pterergate-dtf/dtf/taskmodel"
"github.com/danenmao/pterergate-dtf/internal/serverhelper"
)
const CollectorServerURI = "/collector"
// collector request body structure
type CollectorRequestBody struct {
Results []taskmodel.SubtaskResult `json:"Results"`
}
// the Collector Server
// receive the requests of subtask results
type CollectorServer struct {
*ServerBase
handler taskmodel.CollectorRequestHandler
}
func NewCollectorServer(handler taskmodel.CollectorRequestHandler) *CollectorServer {
return &CollectorServer{
ServerBase: NewServerBase(),
handler: handler,
}
}
// return a register function
// for collector
// to register a request handler to hander collector requests
func (s *CollectorServer) GetRegister() taskmodel.RegisterCollectorRequestHandler {
return func(handler taskmodel.CollectorRequestHandler) error {
// save the handler
s.handler = handler
return nil
}
}
// start the collector server to receive requests
func (s *CollectorServer) Serve(serverPort uint16) error {
return s.serve(
serverPort, CollectorServerURI,
func(
requestHeader serverhelper.RequestHeader,
requestBody string,
) (response string, err error) {
return s.handleRequest(requestHeader, requestBody)
})
}
func (s *CollectorServer) handleRequest(
requestHeader serverhelper.RequestHeader,
requestBody string,
) (response string, err error) {
body := CollectorRequestBody{}
err = json.Unmarshal([]byte(requestBody), &body)
if err != nil {
return "", errors.New("failed to parse request body")
}
err = s.handler(body.Results)
return "", err
}