forked from Conflux-Chain/confura
/
config.go
193 lines (154 loc) · 4.97 KB
/
config.go
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package mysql
import (
"fmt"
stdLog "log"
"os"
"time"
"github.com/Conflux-Chain/go-conflux-util/viper"
gosql "github.com/go-sql-driver/mysql"
"github.com/sirupsen/logrus"
"gorm.io/driver/mysql"
"gorm.io/gorm"
gormLogger "gorm.io/gorm/logger"
)
// auto migrating table models
var allModels = []interface{}{
&transaction{},
&block{},
&conf{},
&RateLimit{},
&User{},
&Contract{},
&epochBlockMap{},
&bnPartition{},
}
// Config represents the mysql configurations to open a database instance.
type Config struct {
Enabled bool
Host string `default:"127.0.0.1:3306"`
Username string
Password string
Database string
Dsn string // to support one line config
ConnMaxLifetime time.Duration `default:"3m"`
MaxOpenConns int `default:"10"`
MaxIdleConns int `default:"10"`
AddressIndexedLogEnabled bool `default:"true"`
AddressIndexedLogPartitions uint32 `default:"100"`
MaxBnRangedArchiveLogPartitions uint32 `default:"5"`
}
func mustNewConfigFromViper(key string) *Config {
var cfg Config
viper.MustUnmarshalKey(key, &cfg)
if !cfg.Enabled {
return &Config{}
}
if len(cfg.Dsn) == 0 {
return &cfg
}
dsnCfg, err := gosql.ParseDSN(cfg.Dsn)
if err != nil {
logrus.WithError(err).WithField("dsn", cfg.Dsn).Fatal("Failed to parse db DSN")
}
cfg.Host = dsnCfg.Addr
cfg.Username = dsnCfg.User
cfg.Password = dsnCfg.Passwd
cfg.Database = dsnCfg.DBName
return &cfg
}
// MustNewConfigFromViper creates an instance of Config from Viper or panic on error.
func MustNewConfigFromViper() *Config {
return mustNewConfigFromViper("store.mysql")
}
func MustNewEthStoreConfigFromViper() *Config {
return mustNewConfigFromViper("ethstore.mysql")
}
// MustOpenOrCreate creates an instance of store or exits on any erorr.
func (config *Config) MustOpenOrCreate(option StoreOption) *MysqlStore {
newCreated := config.mustCreateDatabaseIfAbsent()
db := config.mustNewDB(config.Database)
// Very naive check on database tables are ready or not.
// If no database tables are found, we regard the database as a new created one.
if !newCreated {
var tables []string
if err := db.Raw("SHOW TABLES").Scan(&tables).Error; err != nil {
logrus.WithField("database", config.Database).WithError(err).Fatal("Failed to query database tables")
}
newCreated = (len(tables) == 0)
}
if newCreated {
if err := db.Migrator().CreateTable(allModels...); err != nil {
logrus.WithError(err).Fatal("Failed to create tables")
}
ls := NewAddressIndexedLogStore(db, NewContractStore(db), config.AddressIndexedLogPartitions)
if _, err := ls.CreatePartitionedTables(); err != nil {
logrus.WithError(err).
WithField("partitions", config.AddressIndexedLogPartitions).
Fatal("Failed to create address indexed log tables")
}
}
if sqlDb, err := db.DB(); err != nil {
logrus.WithError(err).Fatal("Failed to init mysql db")
} else {
sqlDb.SetConnMaxLifetime(config.ConnMaxLifetime)
sqlDb.SetMaxOpenConns(config.MaxOpenConns)
sqlDb.SetMaxIdleConns(config.MaxIdleConns)
}
logrus.Info("MySQL database initialized")
return mustNewStore(db, config, option)
}
func (config *Config) mustNewDB(database string) *gorm.DB {
logrusLogLevel := logrus.GetLevel()
gLogLevel := gormLogger.Warn
// map log level of logrus to that of gorm
switch {
case logrusLogLevel <= logrus.ErrorLevel:
gLogLevel = gormLogger.Error
case logrusLogLevel >= logrus.DebugLevel:
// gorm info log level is kind of too verbose
gLogLevel = gormLogger.Info
}
// create gorm logger by customizing the default logger
gLogger := gormLogger.New(
stdLog.New(os.Stdout, "\r\n", stdLog.LstdFlags), // io writer
gormLogger.Config{
SlowThreshold: time.Millisecond * 200, // slow SQL threshold (200ms)
LogLevel: gLogLevel, // log level
IgnoreRecordNotFoundError: true, // never logging on ErrRecordNotFound error
Colorful: true, // use colorful print
},
)
// refer to https://github.com/go-sql-driver/mysql#dsn-data-source-name
dsn := fmt.Sprintf("%v:%v@tcp(%v)/%v?parseTime=true", config.Username, config.Password, config.Host, database)
if database == config.Database && len(config.Dsn) > 0 {
dsn = config.Dsn
}
db, err := gorm.Open(mysql.Open(dsn), &gorm.Config{
Logger: gLogger,
})
if err != nil {
logrus.WithError(err).Fatal("Failed to open mysql")
}
return db
}
func (config *Config) mustCreateDatabaseIfAbsent() bool {
db := config.mustNewDB("")
if mysqlDb, err := db.DB(); err != nil {
return false
} else {
defer mysqlDb.Close()
}
rows, err := db.Raw(fmt.Sprintf("SHOW DATABASES LIKE '%v'", config.Database)).Rows()
if err != nil {
logrus.WithError(err).Fatal("Failed to query databases")
}
defer rows.Close()
if rows.Next() {
return false
}
if err = db.Exec("CREATE DATABASE IF NOT EXISTS " + config.Database).Error; err != nil {
logrus.WithError(err).Fatal("Failed to create database")
}
logrus.Info("Create database for the first time")
return true
}