| /******************************************************************************* |
| * Copyright (c) 2014-2015 IBM Corp. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Allan Stockdill-Mander |
| * Seth Hoenig |
| *******************************************************************************/ |
| |
| package main |
| |
| import ( |
| "flag" |
| "os" |
| "os/signal" |
| |
| G "smidge/gateway/gate" |
| ) |
| |
| func main() { |
| var gateway G.Gateway |
| stopsig := registerSignals() |
| gatewayconf := setup() |
| |
| G.InitLogger(os.Stdout, os.Stderr) // todo: configurable |
| |
| if gatewayconf.IsAggregating() { |
| G.INFO.Println("SMIDGE Gateway starting in aggregating mode") |
| gateway = initAggregating(gatewayconf, stopsig) |
| } else { |
| G.INFO.Println("SMIDGE Gateway starting in transparent mode") |
| gateway = initTransparent(gatewayconf, stopsig) |
| } |
| |
| gateway.Start() |
| } |
| |
| func setup() *G.GatewayConfig { |
| var configFile string |
| var port int |
| |
| flag.StringVar(&configFile, "c", "", "Configuration File") |
| flag.IntVar(&port, "port", 0, "MQTT-G UDP Listening Port") |
| flag.Parse() |
| |
| if configFile != "" { |
| if gc, err := G.ParseConfigFile(configFile); err != nil { |
| G.ERROR.Fatal(err) |
| } else { |
| return gc |
| } |
| } |
| |
| G.ERROR.Fatal("-configuration <file> must be specified") |
| return nil |
| } |
| |
| func initAggregating(c *G.GatewayConfig, stopsig chan os.Signal) *G.AGateway { |
| a := G.NewAGateway(c, stopsig) |
| return a |
| } |
| |
| func initTransparent(c *G.GatewayConfig, stopsig chan os.Signal) *G.TGateway { |
| t := G.NewTGateway(c, stopsig) |
| return t |
| } |
| |
| func registerSignals() chan os.Signal { |
| c := make(chan os.Signal, 1) |
| signal.Notify(c, os.Interrupt, os.Kill) |
| return c |
| } |