// InitDB initialize a connection to specified database
func (conf *DBConfig) InitDB() *DBEngine {
// get driver
dialect, driver := dialectAndDriver(conf.Type)
conf.Driver = driver
strDSN := conf.String()
if strDSN == "" {
log.Error("Invalid DSN has been provided : " + strDSN)
return nil
}
// log.Debug("[" + driver + "] ==> " + strDSN)
// open connection
db, err := sql.Open(driver, strDSN)
if err != nil {
log.Error("Error connecting to db: " + err.Error())
return nil
}
// fmt.Printf("db = %#v\n", db)
// dbEngine := &gorp.DbMap{Db: db, Dialect: dialect}
dbEngine := &DBEngine{DbMap: gorp.DbMap{Db: db, Dialect: dialect}}
// open SQL log or not
if conf.Verbose {
if len(conf.LogFile) > 0 {
sql_log, err := os.OpenFile(conf.LogFile, os.O_RDWR|os.O_CREATE|os.O_APPEND, 0666)
if err == nil {
dbEngine.TraceOn("[SQL]", stdlog.New(sql_log, "sql", stdlog.Lmicroseconds))
} else {
dbEngine.TraceOn("[SQL]", log.GetLogger("file"))
}
} else {
dbEngine.TraceOn("[SQL]", log.GetLogger("file"))
}
} else {
dbEngine.TraceOff()
}
conf._ready = true
return dbEngine
}
func (app *PolarisApplication) RunApp() bool {
config := app.Config.GetBasicConfig()
host := os.Getenv("HOST")
// if len(host) <= 0 {
// host = os.Getenv("COMPUTERNAME")
// }
port := config.Port
log.Info("listening on " + host + ":" + strconv.Itoa(port))
lgr := log.GetLogger("stdout")
if lgr != nil {
lgr.Fatalln(http.ListenAndServe(host+":"+strconv.Itoa(port), app))
return true
}
return false
}