Esempio n. 1
0
func formatFile(filename string, write, backup bool) error {
	data, err := readFile(filename)
	if err != nil {
		return err
	}
	formatted, err := tick.Format(data)
	if err != nil {
		return err
	}
	if write {
		dir := filepath.Dir(filename)
		tmp, err := writeTmpFile(dir, formatted)
		if err != nil {
			return err
		}
		defer os.Remove(tmp)
		if backup {
			err := os.Rename(filename, filename+backupExt)
			if err != nil {
				return err
			}
		}
		err = os.Rename(tmp, filename)
		if err != nil {
			return err
		}
	} else {
		_, err := os.Stdout.Write([]byte(formatted))
		if err != nil {
			return err
		}
	}
	return nil
}
Esempio n. 2
0
func (ts *Service) convertTemplate(t Template, scriptFormat string) (client.Template, error) {
	script := t.TICKscript
	if scriptFormat == "formatted" {
		// Format TICKscript
		formatted, err := tick.Format(script)
		if err == nil {
			// Only format if it succeeded.
			// Otherwise a change in syntax may prevent task retrieval.
			script = formatted
		}
	}

	errMsg := t.Error
	task, err := ts.templateTask(t)
	if err != nil {
		errMsg = err.Error()
	}

	var typ client.TaskType
	switch t.Type {
	case StreamTask:
		typ = client.StreamTask
	case BatchTask:
		typ = client.BatchTask
	default:
		return client.Template{}, fmt.Errorf("invalid task type %v", t.Type)
	}

	vars, err := ts.convertToClientVarsFromTick(task.Vars())
	if err != nil {
		return client.Template{}, err
	}

	return client.Template{
		Link:       ts.templateLink(t.ID),
		ID:         t.ID,
		Type:       typ,
		TICKscript: script,
		Dot:        string(task.Dot()),
		Error:      errMsg,
		Created:    t.Created,
		Modified:   t.Modified,
		Vars:       vars,
	}, nil
}
Esempio n. 3
0
func (ts *Service) convertTask(t Task, scriptFormat, dotView string, tm *kapacitor.TaskMaster) (client.Task, error) {
	script := t.TICKscript
	if scriptFormat == "formatted" {
		// Format TICKscript
		formatted, err := tick.Format(script)
		if err == nil {
			// Only format if it succeeded.
			// Otherwise a change in syntax may prevent task retrieval.
			script = formatted
		}
	}

	executing := tm.IsExecuting(t.ID)
	errMsg := t.Error
	dot := ""
	stats := client.ExecutionStats{}
	task, err := ts.newKapacitorTask(t)
	if err == nil {
		if executing {
			dot = tm.ExecutingDot(t.ID, dotView == "labels")
			s, err := tm.ExecutionStats(t.ID)
			if err != nil {
				ts.logger.Printf("E! failed to retrieve stats for task %s: %v", t.ID, err)
			} else {
				stats.TaskStats = s.TaskStats
				stats.NodeStats = s.NodeStats
			}
		} else {
			dot = string(task.Dot())
		}
	} else {
		errMsg = err.Error()
	}

	var status client.TaskStatus
	switch t.Status {
	case Disabled:
		status = client.Disabled
	case Enabled:
		status = client.Enabled
	default:
		return client.Task{}, fmt.Errorf("invalid task status %v", t.Status)
	}

	var typ client.TaskType
	switch t.Type {
	case StreamTask:
		typ = client.StreamTask
	case BatchTask:
		typ = client.BatchTask
	default:
		return client.Task{}, fmt.Errorf("invalid task type %v", t.Type)
	}

	dbrps := make([]client.DBRP, len(t.DBRPs))
	for i, dbrp := range t.DBRPs {
		dbrps[i] = client.DBRP{
			Database:        dbrp.Database,
			RetentionPolicy: dbrp.RetentionPolicy,
		}
	}

	vars, err := ts.convertToClientVars(t.Vars)
	if err != nil {
		return client.Task{}, err
	}

	return client.Task{
		Link:           ts.taskLink(t.ID),
		ID:             t.ID,
		TemplateID:     t.TemplateID,
		Type:           typ,
		DBRPs:          dbrps,
		TICKscript:     script,
		Vars:           vars,
		Status:         status,
		Dot:            dot,
		Executing:      executing,
		ExecutionStats: stats,
		Created:        t.Created,
		Modified:       t.Modified,
		LastEnabled:    t.LastEnabled,
		Error:          errMsg,
	}, nil
}
Esempio n. 4
0
func (ts *Service) handleListTasks(w http.ResponseWriter, r *http.Request) {

	pattern := r.URL.Query().Get("pattern")
	fields := r.URL.Query()["fields"]
	if len(fields) == 0 {
		fields = allTaskFields
	} else {
		// Always return ID field
		fields = append(fields, "id", "link")
	}

	scriptFormat := r.URL.Query().Get("script-format")
	switch scriptFormat {
	case "":
		scriptFormat = "formatted"
	case "formatted":
	case "raw":
	default:
		httpd.HttpError(w, fmt.Sprintf("invalid script-format parameter %q", scriptFormat), true, http.StatusBadRequest)
		return
	}

	dotView := r.URL.Query().Get("dot-view")
	switch dotView {
	case "":
		dotView = "attributes"
	case "attributes":
	case "labels":
	default:
		httpd.HttpError(w, fmt.Sprintf("invalid dot-view parameter %q", dotView), true, http.StatusBadRequest)
		return
	}

	var err error
	offset := int64(0)
	offsetStr := r.URL.Query().Get("offset")
	if offsetStr != "" {
		offset, err = strconv.ParseInt(offsetStr, 10, 64)
		if err != nil {
			httpd.HttpError(w, fmt.Sprintf("invalid offset parameter %q must be an integer: %s", offsetStr, err), true, http.StatusBadRequest)
		}
	}

	limit := int64(100)
	limitStr := r.URL.Query().Get("limit")
	if limitStr != "" {
		limit, err = strconv.ParseInt(limitStr, 10, 64)
		if err != nil {
			httpd.HttpError(w, fmt.Sprintf("invalid limit parameter %q must be an integer: %s", limitStr, err), true, http.StatusBadRequest)
		}
	}

	rawTasks, err := ts.tasks.List(pattern, int(offset), int(limit))
	tasks := make([]map[string]interface{}, len(rawTasks))

	tm := ts.TaskMasterLookup.Main()

	for i, task := range rawTasks {
		tasks[i] = make(map[string]interface{}, len(fields))
		executing := tm.IsExecuting(task.ID)
		for _, field := range fields {
			var value interface{}
			switch field {
			case "id":
				value = task.ID
			case "link":
				value = ts.taskLink(task.ID)
			case "type":
				switch task.Type {
				case StreamTask:
					value = client.StreamTask
				case BatchTask:
					value = client.BatchTask
				}
			case "dbrps":
				dbrps := make([]client.DBRP, len(task.DBRPs))
				for i, dbrp := range task.DBRPs {
					dbrps[i] = client.DBRP{
						Database:        dbrp.Database,
						RetentionPolicy: dbrp.RetentionPolicy,
					}
				}
				value = dbrps
			case "script":
				value = task.TICKscript
				if scriptFormat == "formatted" {
					formatted, err := tick.Format(task.TICKscript)
					if err == nil {
						// Only format if it succeeded.
						// Otherwise a change in syntax may prevent task retrieval.
						value = formatted
					}
				}
			case "executing":
				value = executing
			case "dot":
				if executing {
					value = tm.ExecutingDot(task.ID, dotView == "labels")
				} else {
					kt, err := ts.newKapacitorTask(task)
					if err != nil {
						break
					}
					value = string(kt.Dot())
				}
			case "stats":
				if executing {
					s, err := tm.ExecutionStats(task.ID)
					if err != nil {
						ts.logger.Printf("E! failed to retrieve stats for task %s: %v", task.ID, err)
					} else {
						value = client.ExecutionStats{
							TaskStats: s.TaskStats,
							NodeStats: s.NodeStats,
						}
					}
				}
			case "error":
				value = task.Error
			case "status":
				switch task.Status {
				case Disabled:
					value = client.Disabled
				case Enabled:
					value = client.Enabled
				}
			case "created":
				value = task.Created
			case "modified":
				value = task.Modified
			case "last-enabled":
				value = task.LastEnabled
			default:
				httpd.HttpError(w, fmt.Sprintf("unsupported field %q", field), true, http.StatusBadRequest)
				return
			}
			tasks[i][field] = value
		}
	}

	type response struct {
		Tasks []map[string]interface{} `json:"tasks"`
	}

	w.Write(httpd.MarshalJSON(response{tasks}, true))
}
Esempio n. 5
0
func (ts *Service) handleListTemplates(w http.ResponseWriter, r *http.Request) {

	pattern := r.URL.Query().Get("pattern")
	fields := r.URL.Query()["fields"]
	if len(fields) == 0 {
		fields = allTemplateFields
	} else {
		// Always return ID field
		fields = append(fields, "id", "link")
	}

	scriptFormat := r.URL.Query().Get("script-format")
	switch scriptFormat {
	case "":
		scriptFormat = "formatted"
	case "formatted":
	case "raw":
	default:
		httpd.HttpError(w, fmt.Sprintf("invalid script-format parameter %q", scriptFormat), true, http.StatusBadRequest)
		return
	}

	var err error
	offset := int64(0)
	offsetStr := r.URL.Query().Get("offset")
	if offsetStr != "" {
		offset, err = strconv.ParseInt(offsetStr, 10, 64)
		if err != nil {
			httpd.HttpError(w, fmt.Sprintf("invalid offset parameter %q must be an integer: %s", offsetStr, err), true, http.StatusBadRequest)
		}
	}

	limit := int64(100)
	limitStr := r.URL.Query().Get("limit")
	if limitStr != "" {
		limit, err = strconv.ParseInt(limitStr, 10, 64)
		if err != nil {
			httpd.HttpError(w, fmt.Sprintf("invalid limit parameter %q must be an integer: %s", limitStr, err), true, http.StatusBadRequest)
		}
	}

	rawTemplates, err := ts.templates.List(pattern, int(offset), int(limit))
	templates := make([]map[string]interface{}, len(rawTemplates))

	for i, template := range rawTemplates {
		templates[i] = make(map[string]interface{}, len(fields))
		task, err := ts.templateTask(template)
		if err != nil {
			continue
		}
		for _, field := range fields {
			var value interface{}
			switch field {
			case "id":
				value = template.ID
			case "link":
				value = ts.templateLink(template.ID)
			case "type":
				switch template.Type {
				case StreamTask:
					value = client.StreamTask
				case BatchTask:
					value = client.BatchTask
				}
			case "script":
				value = template.TICKscript
				if scriptFormat == "formatted" {
					formatted, err := tick.Format(template.TICKscript)
					if err == nil {
						// Only format if it succeeded.
						// Otherwise a change in syntax may prevent template retrieval.
						value = formatted
					}
				}
			case "dot":
				value = string(task.Dot())
			case "vars":
				vars, err := ts.convertToClientVarsFromTick(task.Vars())
				if err != nil {
					ts.logger.Printf("E! failed to get vars for template %s: %s", template.ID, err)
					break
				}
				value = vars
			case "error":
				value = template.Error
			case "created":
				value = template.Created
			case "modified":
				value = template.Modified
			default:
				httpd.HttpError(w, fmt.Sprintf("unsupported field %q", field), true, http.StatusBadRequest)
				return
			}
			templates[i][field] = value
		}
	}

	type response struct {
		Templates []map[string]interface{} `json:"templates"`
	}

	w.Write(httpd.MarshalJSON(response{templates}, true))
}