Golang Response.Success方法代码示例

func (j *CreateKeysRequest) Execute(resp jobs.Response) {
	failedKeys := []KeyFailure{}
	for i := range j.Keys {
		key := j.Keys[i]

		locator, err := key.Create()
		if err != nil {
			failedKeys = append(failedKeys, KeyFailure{i, &key, err})
			continue
		}

		for k := range j.Permissions {
			if err := j.Permissions[k].Create(locator); err != nil {
				failedKeys = append(failedKeys, KeyFailure{i, &key, err})
				continue
			}
		}
	}

	if len(failedKeys) > 0 {
		data := make([]KeyStructuredFailure, len(failedKeys))
		for i := range failedKeys {
			data[i] = KeyStructuredFailure{failedKeys[i].Index, failedKeys[i].Reason.Error()}
			log.Printf("Failure %d: %+v", failedKeys[i].Index, failedKeys[i].Reason)
		}
		resp.Failure(jobs.StructuredJobError{jobs.SimpleError{jobs.ResponseError, "Not all keys were completed"}, data})
	} else {
		resp.Success(jobs.ResponseOk)
	}
}

func (j *PatchEnvironmentRequest) Execute(resp jobs.Response) {
	if err := j.Write(true); err != nil {
		resp.Failure(ErrEnvironmentUpdateFailed)
		return
	}
	resp.Success(jobs.ResponseOk)
}

func (j AddAliasRequest) Execute(resp jobs.Response) {
	value, ok := router.GlobalRoutes[j.Frontend]
	if ok {
		router.AddAlias(j.Alias, value.Name)
	} else {
		router.CreateFrontend(j.Frontend, j.Alias)
	}
	resp.Success(jobs.ResponseOk)
}

func (j *LinkContainersRequest) Execute(resp jobs.Response) {
	for i := range j.Links {
		if errw := j.Links[i].NetworkLinks.Write(j.Links[i].Id.NetworkLinksPathFor(), false); errw != nil {
			resp.Failure(ErrLinkContainersFailed)
			return
		}
	}

	resp.Success(jobs.ResponseOk)
}

func (j UpdateFrontendRequest) Execute(resp jobs.Response) {
	// detach empty frontends
	for _, frontend := range j.Frontends {
		if frontend.BackendId == "" {
			frontend.Remove()
		}
	}

	errs := []backendError{}
	for _, backend := range j.Backends {
		if err := utils.WriteToPathExclusive(backend.Id.BackendPathFor(), 0554, backend); err != nil {
			errs = append(errs, backendError{backend.Id, err})
		}
	}
	if len(errs) != 0 {
		log.Printf("Unable to persist some backends: %+v", errs)
		resp.Failure(ErrBackendWriteFailed)
		return
	}
	resp.Success(jobs.ResponseOk)
}

func (h *HttpTransport) ExecuteRemote(baseUrl *url.URL, job RemoteExecutable, res jobs.Response) error {
	reader, writer := io.Pipe()
	httpreq, errn := http.NewRequest(job.HttpMethod(), baseUrl.String(), reader)
	if errn != nil {
		return errn
	}

	id := job.MarshalRequestIdentifier()
	if len(id) == 0 {
		id = jobs.NewRequestIdentifier()
	}

	query := &url.Values{}
	job.MarshalUrlQuery(query)

	req := httpreq
	req.Header.Set("X-Request-Id", id.String())
	req.Header.Set("If-Match", "api="+ApiVersion())
	req.Header.Set("Content-Type", "application/json")
	//TODO: introduce API version per job
	//TODO: content request signing for GETs
	req.URL.Path = job.HttpPath()
	req.URL.RawQuery = query.Encode()
	go func() {
		if err := job.MarshalHttpRequestBody(writer); err != nil {
			log.Printf("http_remote: Error when writing to http: %v", err)
			writer.CloseWithError(err)
		} else {
			writer.Close()
		}
	}()

	resp, err := h.client.Do(req)
	if err != nil {
		return err
	}
	defer resp.Body.Close()

	isJson := resp.Header.Get("Content-Type") == "application/json"

	switch code := resp.StatusCode; {
	case code == 202:
		if isJson {
			return errors.New("Decoding of streaming JSON has not been implemented")
		}
		data, err := job.UnmarshalHttpResponse(resp.Header, nil, ResponseTable)
		if err != nil {
			return err
		}
		if pending, ok := data.(map[string]interface{}); ok {
			for k := range pending {
				res.WritePendingSuccess(k, pending[k])
			}
		}
		w := res.SuccessWithWrite(jobs.ResponseOk, false, false)
		if _, err := io.Copy(w, resp.Body); err != nil {
			return err
		}
	case code == 204:
		data, err := job.UnmarshalHttpResponse(resp.Header, nil, ResponseTable)
		if err != nil {
			return err
		}
		if pending, ok := data.(map[string]interface{}); ok {
			for k := range pending {
				res.WritePendingSuccess(k, pending[k])
			}
		}
		res.Success(jobs.ResponseOk)
	case code >= 200 && code < 300:
		if !isJson {
			return errors.New(fmt.Sprintf("remote: Response with %d status code had content type %s (should be application/json)", code, resp.Header.Get("Content-Type")))
		}
		data, err := job.UnmarshalHttpResponse(nil, resp.Body, ResponseJson)
		if err != nil {
			return err
		}
		res.SuccessWithData(jobs.ResponseOk, data)
	default:
		if isJson {
			decoder := json.NewDecoder(resp.Body)
			data := httpFailureResponse{}
			if err := decoder.Decode(&data); err != nil {
				return err
			}
			res.Failure(jobs.SimpleError{jobs.ResponseError, data.Message})
			return nil
		}
		io.Copy(os.Stderr, resp.Body)
		res.Failure(jobs.SimpleError{jobs.ResponseError, "Unable to decode response."})
	}
	return nil
}

func (j *runContainer) Execute(resp jobs.Response) {
	command := j.UnitCommand()
	unitName := containers.JobIdentifier(j.Name).UnitNameFor()
	unitDescription := fmt.Sprintf("Execute image '%s': %s %s", j.Image, j.Command, strings.Join(command, " "))

	var (
		stdout  io.ReadCloser
		changes <-chan map[string]*dbus.UnitStatus
		errch   <-chan error
	)

	if resp.StreamResult() {
		r, err := systemd.ProcessLogsForUnit(unitName)
		if err != nil {
			r = utils.EmptyReader
			log.Printf("run_container: Unable to fetch container run logs: %s, %+v", err.Error(), err)
		}
		defer r.Close()

		conn, errc := systemd.NewConnection()
		if errc != nil {
			log.Print("run_container:", errc)
			return
		}

		if err := conn.Subscribe(); err != nil {
			log.Print("run_container:", err)
			return
		}
		defer conn.Unsubscribe()

		// make subscription global for efficiency
		c, ech := conn.SubscribeUnitsCustom(1*time.Second, 2,
			func(s1 *dbus.UnitStatus, s2 *dbus.UnitStatus) bool {
				return true
			},
			func(unit string) bool {
				return unit != unitName
			})

		stdout = r
		changes = c
		errch = ech
	}

	log.Printf("run_container: Running container %s", unitName)

	status, err := systemd.Connection().StartTransientUnit(
		unitName,
		"fail",
		dbus.PropExecStart(command, true),
		dbus.PropDescription(unitDescription),
		dbus.PropRemainAfterExit(true),
		dbus.PropSlice("container.slice"),
	)

	switch {
	case err != nil:
		errType := reflect.TypeOf(err)
		resp.Failure(jobs.SimpleError{jobs.ResponseError, fmt.Sprintf("Unable to start container execution due to (%s): %s", errType, err.Error())})
		return
	case status != "done":
		resp.Failure(jobs.SimpleError{jobs.ResponseError, fmt.Sprintf("Start did not complete successfully: %s", status)})
		return
	case stdout == nil:
		resp.Success(jobs.ResponseOk)
		return
	}

	w := resp.SuccessWithWrite(jobs.ResponseAccepted, true, false)
	go io.Copy(w, stdout)

wait:
	for {
		select {
		case c := <-changes:
			if changed, ok := c[unitName]; ok {
				if changed.SubState != "running" {
					break wait
				}
			}
		case err := <-errch:
			fmt.Fprintf(w, "Error %+v\n", err)
		case <-time.After(1 * time.Minute):
			log.Print("run_container:", "timeout")
			break wait
		}
	}

	stdout.Close()
}

func (j *DeleteContainerRequest) Execute(resp jobs.Response) {
	unitName := j.Id.UnitNameFor()
	unitPath := j.Id.UnitPathFor()
	unitDefinitionsPath := j.Id.VersionedUnitsPathFor()
	idleFlagPath := j.Id.IdleUnitPathFor()
	socketUnitPath := j.Id.SocketUnitPathFor()
	homeDirPath := j.Id.BaseHomePath()
	runDirPath := j.Id.RunPathFor()
	networkLinksPath := j.Id.NetworkLinksPathFor()

	_, err := systemd.Connection().GetUnitProperties(unitName)
	switch {
	case systemd.IsNoSuchUnit(err):
		resp.Success(jobs.ResponseOk)
		return
	case err != nil:
		resp.Failure(ErrDeleteContainerFailed)
		return
	}

	if err := systemd.Connection().StopUnitJob(unitName, "fail"); err != nil {
		log.Printf("delete_container: Unable to queue stop unit job: %v", err)
	}

	ports, err := containers.GetExistingPorts(j.Id)
	if err != nil {
		if !os.IsNotExist(err) {
			log.Printf("delete_container: Unable to read existing port definitions: %v", err)
		}
		ports = port.PortPairs{}
	}

	if err := port.ReleaseExternalPorts(ports); err != nil {
		log.Printf("delete_container: Unable to release ports: %v", err)
	}

	if err := os.Remove(unitPath); err != nil && !os.IsNotExist(err) {
		resp.Failure(ErrDeleteContainerFailed)
		return
	}

	if err := os.Remove(idleFlagPath); err != nil && !os.IsNotExist(err) {
		resp.Failure(ErrDeleteContainerFailed)
		return
	}

	if err := j.Id.SetUnitStartOnBoot(false); err != nil {
		log.Printf("delete_container: Unable to clear unit boot state: %v", err)
	}

	if err := os.Remove(socketUnitPath); err != nil && !os.IsNotExist(err) {
		log.Printf("delete_container: Unable to remove socket unit path: %v", err)
	}

	if err := os.Remove(networkLinksPath); err != nil && !os.IsNotExist(err) {
		log.Printf("delete_container: Unable to remove network links file: %v", err)
	}

	if err := os.RemoveAll(unitDefinitionsPath); err != nil {
		log.Printf("delete_container: Unable to remove definitions for container: %v", err)
	}

	if err := os.RemoveAll(filepath.Dir(runDirPath)); err != nil {
		log.Printf("delete_container: Unable to remove run directory: %v", err)
	}

	if err := os.RemoveAll(filepath.Dir(homeDirPath)); err != nil {
		log.Printf("delete_container: Unable to remove home directory: %v", err)
	}

	if _, err := systemd.Connection().DisableUnitFiles([]string{unitPath, socketUnitPath}, false); err != nil {
		log.Printf("delete_container: Some units have not been disabled: %v", err)
	}

	if err := systemd.Connection().Reload(); err != nil {
		log.Printf("delete_container: Some units have not been disabled: %v", err)
	}

	resp.Success(jobs.ResponseOk)
}

func (p *purgeContainers) Execute(res jobs.Response) {
	Clean()
	res.Success(jobs.ResponseOk)
}