Пример #1
0
// CloseSession puts the connection back into the pool
func CloseSession(sessionId string, mongoSession *mgo.Session) {
	defer helper.CatchPanic(nil, sessionId, "CloseSession")

	tracelog.STARTED(sessionId, "CloseSession")

	mongoSession.Close()

	tracelog.COMPLETED(sessionId, "CloseSession")
}
Пример #2
0
// Shutdown systematically brings the manager down gracefully
func Shutdown(sessionId string) (err error) {
	defer helper.CatchPanic(&err, sessionId, "Shutdown")

	tracelog.STARTED(sessionId, "Shutdown")

	// Close the databases
	for _, session := range _This.sessions {
		CloseSession(sessionId, session.mongoSession)
	}

	tracelog.COMPLETED(sessionId, "Shutdown")
	return err
}
Пример #3
0
// Startup brings the manager to a running state
func Startup(sessionId string) (err error) {
	defer helper.CatchPanic(&err, sessionId, "Startup")

	tracelog.STARTED(sessionId, "Startup")

	// Create the Mongo Manager
	_This = &mongoManager{
		sessions: map[string]*mongoSession{},
	}

	// Log the mongodb connection straps
	tracelog.TRACE(sessionId, "Startup", "MongoDB : Addr[%s]", revel.Config.StringDefault("mgo.host", ""))
	tracelog.TRACE(sessionId, "Startup", "MongoDB : Database[%s]", revel.Config.StringDefault("mgo.database", ""))
	tracelog.TRACE(sessionId, "Startup", "MongoDB : Username[%s]", revel.Config.StringDefault("mgo.username", ""))

	hosts := strings.Split(revel.Config.StringDefault("mgo.host", ""), ",")

	// Create the strong and monotonic sessions
	err = CreateSession(sessionId, "strong", MASTER_SESSION, hosts, revel.Config.StringDefault("mgo.database", ""), revel.Config.StringDefault("mgo.username", ""), revel.Config.StringDefault("mgo.password", ""))
	err = CreateSession(sessionId, "monotonic", MONOTONIC_SESSION, hosts, revel.Config.StringDefault("mgo.database", ""), revel.Config.StringDefault("mgo.username", ""), revel.Config.StringDefault("mgo.password", ""))

	tracelog.COMPLETED(sessionId, "Startup")
	return err
}
Пример #4
0
// FindRegion retrieves the stations for the specified region
func FindRegion(service *services.Service, region string) (buoyStations []*buoyModel.BuoyStation, err error) {
	defer helper.CatchPanic(&err, service.UserId, "FindRegion")

	tracelog.STARTED(service.UserId, "FindRegion")

	// Find the specified region
	queryMap := bson.M{"region": region}
	tracelog.TRACE(helper.MAIN_GO_ROUTINE, "FindRegion", "Query : %s", mongo.ToString(queryMap))

	// Capture the specified buoy
	buoyStations = []*buoyModel.BuoyStation{}
	err = service.DBAction("buoy_stations",
		func(collection *mgo.Collection) error {
			return collection.Find(queryMap).All(&buoyStations)
		})

	if err != nil {
		tracelog.COMPLETED_ERROR(err, helper.MAIN_GO_ROUTINE, "FindRegion")
		return buoyStations, err
	}

	tracelog.COMPLETED(service.UserId, "FindRegion")
	return buoyStations, err
}
Пример #5
0
// FindStation retrieves the specified station
func FindStation(service *services.Service, stationId string) (buoyStation *buoyModel.BuoyStation, err error) {
	defer helper.CatchPanic(&err, service.UserId, "FindStation")

	tracelog.STARTED(service.UserId, "FindStation")

	// Find the specified station id
	queryMap := bson.M{"station_id": stationId}
	tracelog.TRACE(helper.MAIN_GO_ROUTINE, "FindStation", "Query : %s", mongo.ToString(queryMap))

	// Execute the query
	buoyStation = &buoyModel.BuoyStation{}
	err = service.DBAction("buoy_stations",
		func(collection *mgo.Collection) error {
			return collection.Find(queryMap).One(buoyStation)
		})

	if err != nil {
		tracelog.COMPLETED_ERROR(err, helper.MAIN_GO_ROUTINE, "FindStation")
		return buoyStation, err
	}

	tracelog.COMPLETED(service.UserId, "FindStation")
	return buoyStation, err
}