service-watch.go

/*
 * Copyright (c) 2019-2021. Abstrium SAS <team (at) pydio.com>
 * This file is part of Pydio Cells.
 *
 * Pydio Cells is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Pydio Cells is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with Pydio Cells.  If not, see <http://www.gnu.org/licenses/>.
 *
 * The latest code can be found at <https://pydio.com>.
 */

package service

import (
	"time"

	"github.com/pydio/cells/common/config"
	"github.com/pydio/cells/x/configx"
)

func registerWatchers(s Service, path string, fs []func(Service, configx.Values)) {
	go func(s Service, fs []func(Service, configx.Values)) {
		for {
			w, err := config.Watch(configx.StringToKeys(path)...)
			if err != nil {
				time.Sleep(1 * time.Second)
				continue
			}

		loop:
			for {
				select {
				case <-s.Done():
					break loop
				default:
					res, err := w.Next()
					if err != nil {
						break loop
					}
					for _, f := range fs {
						f(s, res)
					}
				}
			}

			w.Stop()
			time.Sleep(1 * time.Second)
		}
	}(s, fs)
}