Golang tracelog.COMPLETED_ERROR函數代碼示例

func init() {
	// Pull in the configuration
	err := envconfig.Process("buoy", &Config)
	if err != nil {
		tracelog.COMPLETED_ERROR(err, helper.MAIN_GO_ROUTINE, "Init")
	}
}

// searchDirectory recurses through the specified directory looking
// for i18n folders. If found it will load the translations files
func searchDirectory(directory string, pwd string) {
	// Read the directory
	fileInfos, err := ioutil.ReadDir(directory)
	if err != nil {
		tracelog.COMPLETED_ERROR(err, "localize", "searchDirectory")
		return
	}

	// Look for i18n folders
	for _, fileInfo := range fileInfos {
		if fileInfo.IsDir() == true {
			fullPath := fmt.Sprintf("%s/%s", directory, fileInfo.Name())

			// If this directory is the current directory, ignore it
			if fullPath == pwd {
				continue
			}

			// Is this an i18n folder
			if fileInfo.Name() == "i18n" {
				loadTranslationFiles(fullPath)
				continue
			}

			// Look for more sub-directories
			searchDirectory(fullPath, pwd)
			continue
		}
	}
}

// FindStation retrieves the specified station
func FindStation(service *services.Service, stationId string) (buoyStation *buoyModels.BuoyStation, err error) {
	defer helper.CatchPanic(&err, service.UserId, "FindStation")

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

	queryMap := bson.M{"station_id": stationId}

	buoyStation = &buoyModels.BuoyStation{}
	err = service.DBAction(Config.Database, "buoy_stations",
		func(collection *mgo.Collection) error {
			tracelog.TRACE(service.UserId, "FindStation", "Query : %s", mongo.ToString(queryMap))
			return collection.Find(queryMap).One(buoyStation)
		})

	if err != nil {
		if strings.Contains(err.Error(), "not found") == false {
			tracelog.COMPLETED_ERROR(err, service.UserId, "FindStation")
			return buoyStation, err
		}

		err = nil
	}

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

// init initializes all required packages and systems
func init() {
	tracelog.Start(tracelog.LEVEL_TRACE)

	// Init mongo
	tracelog.STARTED("main", "Initializing Mongo")
	err := mongo.Startup(helper.MAIN_GO_ROUTINE)
	if err != nil {
		tracelog.COMPLETED_ERROR(err, helper.MAIN_GO_ROUTINE, "initTesting")
		return
	}
}

// Execute the MongoDB literal function
func Execute(sessionId string, mongoSession *mgo.Session, databaseName string, collectionName string, mongoCall MongoCall) (err error) {
	tracelog.STARTEDf(sessionId, "Execute", "Database[%s] Collection[%s]", databaseName, collectionName)

	// Capture the specified collection
	collection, err := GetCollection(mongoSession, databaseName, collectionName)
	if err != nil {

		tracelog.COMPLETED_ERROR(err, sessionId, "Execute")
		return err
	}

	// Execute the mongo call
	err = mongoCall(collection)
	if err != nil {
		tracelog.COMPLETED_ERROR(err, sessionId, "Execute")
		return err
	}

	tracelog.COMPLETED(sessionId, "Execute")

	return err
}

// CreateSession creates a connection pool for use
func CreateSession(sessionId string, mode string, sessionName string, hosts []string, databaseName string, username string, password string) (err error) {
	defer helper.CatchPanic(nil, sessionId, "CreateSession")

	tracelog.STARTEDf(sessionId, "CreateSession", "Mode[%s] SessionName[%s] Hosts[%s] DatabaseName[%s] Username[%s]", mode, sessionName, hosts, databaseName, username)

	// Create the database object
	mongoSession := &mongoSession{
		mongoDBDialInfo: &mgo.DialInfo{
			Addrs:    hosts,
			Timeout:  60 * time.Second,
			Database: databaseName,
			Username: username,
			Password: password,
		},
	}

	// Establish the master session
	mongoSession.mongoSession, err = mgo.DialWithInfo(mongoSession.mongoDBDialInfo)
	if err != nil {
		tracelog.COMPLETED_ERROR(err, sessionId, "CreateSession")
		return err
	}

	switch mode {
	case "strong":
		// Reads and writes will always be made to the master server using a
		// unique connection so that reads and writes are fully consistent,
		// ordered, and observing the most up-to-date data.
		// http://godoc.org/labix.org/v2/mgo#Session.SetMode
		mongoSession.mongoSession.SetMode(mgo.Strong, true)
		break

	case "monotonic":
		// Reads may not be entirely up-to-date, but they will always see the
		// history of changes moving forward, the data read will be consistent
		// across sequential queries in the same session, and modifications made
		// within the session will be observed in following queries (read-your-writes).
		// http://godoc.org/labix.org/v2/mgo#Session.SetMode
		mongoSession.mongoSession.SetMode(mgo.Monotonic, true)
	}

	// Have the session check for errors
	// http://godoc.org/labix.org/v2/mgo#Session.SetSafe
	mongoSession.mongoSession.SetSafe(&mgo.Safe{})

	// Add the database to the map
	_This.sessions[sessionName] = mongoSession

	tracelog.COMPLETED(sessionId, "CreateSession")
	return err
}

func main() {
	tracelog.Start(tracelog.LEVEL_TRACE)

	// Init mongo
	tracelog.STARTED("main", "Initializing Mongo")
	err := mongo.Startup(helper.MAIN_GO_ROUTINE)
	if err != nil {
		tracelog.COMPLETED_ERROR(err, helper.MAIN_GO_ROUTINE, "initApp")
		os.Exit(1)
	}

	beego.Run()

	tracelog.STARTED(helper.MAIN_GO_ROUTINE, "Website Shutdown")
	tracelog.Stop()
}

// loadTranslationFiles loads the found translation files into the i18n
// messaging system for use by the application
func loadTranslationFiles(directory string) {
	// Read the directory
	fileInfos, err := ioutil.ReadDir(directory)
	if err != nil {
		tracelog.COMPLETED_ERROR(err, "localize", "loadTranslationFiles")
		return
	}

	// Look for JSON files
	for _, fileInfo := range fileInfos {
		if path.Ext(fileInfo.Name()) != ".json" {
			continue
		}

		fileName := fmt.Sprintf("%s/%s", directory, fileInfo.Name())

		tracelog.INFO("localize", "loadTranslationFiles", "Loading %s", fileName)
		i18n.MustLoadTranslationFile(fileName)
	}
}

// CopySession makes a clone of the specified session for client use
func CloneSession(sessionId string, useSession string) (mongoSession *mgo.Session, err error) {
	defer helper.CatchPanic(nil, sessionId, "CopySession")

	tracelog.STARTEDf(sessionId, "CloneSession", "UseSession[%s]", useSession)

	// Find the session object
	session := _This.sessions[useSession]

	if session == nil {
		err = fmt.Errorf("Unable To Locate Session %s", useSession)
		tracelog.COMPLETED_ERROR(err, sessionId, "CloneSession")
		return mongoSession, err
	}

	// Clone the master session
	mongoSession = session.mongoSession.Clone()

	tracelog.COMPLETED(sessionId, "CloneSession")
	return mongoSession, err
}

// FindRegion retrieves the stations for the specified region
func FindRegion(service *services.Service, region string) (buoyStations []*buoyModels.BuoyStation, err error) {
	defer helper.CatchPanic(&err, service.UserId, "FindRegion")

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

	queryMap := bson.M{"region": region}
	tracelog.TRACE(service.UserId, "FindRegion", "Query : %s", mongo.ToString(queryMap))

	buoyStations = []*buoyModels.BuoyStation{}
	err = service.DBAction(Config.Database, "buoy_stations",
		func(collection *mgo.Collection) error {
			return collection.Find(queryMap).All(&buoyStations)
		})

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

	tracelog.COMPLETED(service.UserId, "FindRegion")
	return buoyStations, err
}

// LoadJSON takes a json document of translations and manually
// loads them into the system
func LoadJSON(userLocale string, translationDocument string) error {
	tracelog.STARTEDf("localize", "LoadJSON", "UserLocale[%s] Length[%d]", userLocale, len(translationDocument))

	tranDocuments := []map[string]interface{}{}
	err := json.Unmarshal([]byte(translationDocument), &tranDocuments)
	if err != nil {
		tracelog.COMPLETED_ERRORf(err, "localize", "LoadJSON", "**************>")
		return err
	}

	for _, tranDocument := range tranDocuments {
		tran, err := translation.NewTranslation(tranDocument)
		if err != nil {
			tracelog.COMPLETED_ERROR(err, "localize", "LoadJSON")
			return err
		}

		i18n.AddTranslation(locale.MustNew(userLocale), tran)
	}

	tracelog.COMPLETED("localize", "LoadJSON")
	return nil
}

// Startup brings the manager to a running state
func Startup(sessionId string) (err error) {
	defer helper.CatchPanic(&err, sessionId, "Startup")

	// If the system has already been started ignore the call
	if _This != nil {
		return err
	}

	tracelog.STARTED(sessionId, "Startup")

	// Pull in the configuration
	config := mongoConfiguration{}
	err = envconfig.Process("mgo", &config)
	if err != nil {
		tracelog.COMPLETED_ERROR(err, sessionId, "Startup")
		return err
	}

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

	// Log the mongodb connection straps
	tracelog.TRACE(sessionId, "Startup", "MongoDB : Hosts[%s]", config.Hosts)
	tracelog.TRACE(sessionId, "Startup", "MongoDB : Database[%s]", config.Database)
	tracelog.TRACE(sessionId, "Startup", "MongoDB : Username[%s]", config.UserName)

	hosts := strings.Split(config.Hosts, ",")

	// Create the strong and monotonic sessions
	err = CreateSession(sessionId, "strong", MASTER_SESSION, hosts, config.Database, config.UserName, config.Password)
	err = CreateSession(sessionId, "monotonic", MONOTONIC_SESSION, hosts, config.Database, config.UserName, config.Password)

	tracelog.COMPLETED(sessionId, "Startup")
	return err
}

// LoadFiles looks for i18n folders inside the current directory and the GOPATH
// to find translation files to load
func LoadFiles(userLocale string, defaultLocal string) error {
	gopath := os.Getenv("GOPATH")
	pwd, err := os.Getwd()
	if err != nil {
		tracelog.COMPLETED_ERROR(err, "localize", "LoadFiles")
		return err
	}

	tracelog.INFO("localize", "LoadFiles", "PWD[%s] GOPATH[%s]", pwd, gopath)

	// Load any translation files we can find
	searchDirectory(pwd, pwd)
	if gopath != "" {
		searchDirectory(gopath, pwd)
	}

	// Create a translation function for use
	T, err = i18n.Tfunc(userLocale, defaultLocal)
	if err != nil {
		return err
	}

	return nil
}

// FindStation retrieves the specified station
func FindStation(service *services.Service, stationId string) (buoyStation *buoyModels.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(service.UserId, "FindStation", "Query : %s", mongo.ToString(queryMap))

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

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

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