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client.go
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client.go
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package xgormv2
import (
"context"
"errors"
"fmt"
"github.com/go-kratos/kratos/v2/log"
"github.com/samber/lo"
"github.com/yearm/kratos-pkg/config/env"
semconv "go.opentelemetry.io/otel/semconv/v1.14.0"
"gorm.io/gorm/logger"
"gorm.io/plugin/opentelemetry/tracing"
"time"
"github.com/hoisie/mustache"
"github.com/sirupsen/logrus"
"github.com/spf13/viper"
"gorm.io/driver/mysql"
"gorm.io/gorm"
"gorm.io/gorm/schema"
)
// NewDBClient ...
func NewDBClient(configPath string, opts ...gorm.Option) *gorm.DB {
user := viper.GetString(fmt.Sprintf("%s.user", configPath))
password := viper.GetString(fmt.Sprintf("%s.password", configPath))
host := viper.GetString(fmt.Sprintf("%s.host", configPath))
port := viper.GetString(fmt.Sprintf("%s.port", configPath))
database := viper.GetString(fmt.Sprintf("%s.database", configPath))
maxIdle := viper.GetInt(fmt.Sprintf("%s.maxIdle", configPath))
maxOpen := viper.GetInt(fmt.Sprintf("%s.maxOpen", configPath))
maxLifetime := viper.GetInt(fmt.Sprintf("%s.maxLifetime", configPath))
charset := viper.GetString(fmt.Sprintf("%s.charset", configPath))
slowThreshold := viper.GetInt(fmt.Sprintf("%s.slowThreshold", configPath))
url := mustache.Render("{{user}}:{{password}}@tcp({{host}}:{{port}})/{{database}}?charset={{charset}}&parseTime=True&loc=Local", map[string]interface{}{
"user": user,
"password": password,
"host": host,
"port": port,
"database": database,
"charset": lo.If(charset == "", "utf8").Else(charset),
})
ormConfigs := []gorm.Option{
&gorm.Config{
SkipDefaultTransaction: true,
NamingStrategy: schema.NamingStrategy{SingularTable: true},
Logger: getLogger(slowThreshold),
},
}
ormConfigs = append(ormConfigs, opts...)
db, err := gorm.Open(mysql.Open(url), ormConfigs...)
if err != nil {
logrus.Panicln(fmt.Sprintf("failed to connect database:[%s], error:%s", url, err))
}
err = db.Use(tracing.NewPlugin(
tracing.WithAttributes(semconv.DBUserKey.String(user)),
tracing.WithDBName(database),
))
if err != nil {
logrus.Panicln(fmt.Sprintf("failed to use tracing plugin:[%s], error:%s", url, err))
}
sdb, _ := db.DB()
sdb.SetMaxIdleConns(maxIdle)
sdb.SetMaxOpenConns(maxOpen)
sdb.SetConnMaxLifetime(time.Duration(maxLifetime) * time.Second)
return db
}
func getLogger(slowThreshold int) logger.Interface {
if env.IsLocal() {
return logger.Default.LogMode(logger.Info)
}
logLevel := logger.Warn
if env.IsDevelopment() {
logLevel = logger.Info
}
return &aliyunLogger{
Config: logger.Config{
SlowThreshold: time.Duration(lo.If(slowThreshold > 0, slowThreshold).Else(200)) * time.Millisecond,
IgnoreRecordNotFoundError: false,
LogLevel: logLevel,
},
}
}
type aliyunLogger struct {
logger.Config
}
func (a *aliyunLogger) LogMode(level logger.LogLevel) logger.Interface {
al := *a
al.LogLevel = level
return &al
}
func (a *aliyunLogger) Info(ctx context.Context, s string, i ...interface{}) {
if a.LogLevel >= logger.Info {
log.Context(ctx).Infof(s, i)
}
}
func (a *aliyunLogger) Warn(ctx context.Context, s string, i ...interface{}) {
if a.LogLevel >= logger.Warn {
log.Context(ctx).Warnf(s, i)
}
}
func (a *aliyunLogger) Error(ctx context.Context, s string, i ...interface{}) {
if a.LogLevel >= logger.Error {
log.Context(ctx).Errorf(s, i)
}
}
func (a *aliyunLogger) Trace(ctx context.Context, begin time.Time, fc func() (sql string, rowsAffected int64), err error) {
if a.LogLevel <= logger.Silent {
return
}
elapsed := time.Since(begin)
switch {
case err != nil && a.LogLevel >= logger.Error && (!errors.Is(err, logger.ErrRecordNotFound) || !a.IgnoreRecordNotFoundError):
sql, rows := fc()
if rows == -1 {
if errors.Is(err, logger.ErrRecordNotFound) {
log.Context(ctx).Infof("%s [%.3fms] [rows:%v] %s", err, float64(elapsed.Nanoseconds())/1e6, "-", sql)
} else {
log.Context(ctx).Errorf("%s [%.3fms] [rows:%v] %s", err, float64(elapsed.Nanoseconds())/1e6, "-", sql)
}
} else {
if errors.Is(err, logger.ErrRecordNotFound) {
log.Context(ctx).Infof("%s [%.3fms] [rows:%v] %s", err, float64(elapsed.Nanoseconds())/1e6, rows, sql)
} else {
log.Context(ctx).Errorf("%s [%.3fms] [rows:%v] %s", err, float64(elapsed.Nanoseconds())/1e6, rows, sql)
}
}
case elapsed > a.SlowThreshold && a.SlowThreshold != 0 && a.LogLevel >= logger.Warn:
sql, rows := fc()
slowLog := fmt.Sprintf("SLOW SQL >= %v", a.SlowThreshold)
if rows == -1 {
log.Context(ctx).Warnf("%s [%.3fms] [rows:%v] %s", slowLog, float64(elapsed.Nanoseconds())/1e6, "-", sql)
} else {
log.Context(ctx).Warnf("%s [%.3fms] [rows:%v] %s", slowLog, float64(elapsed.Nanoseconds())/1e6, rows, sql)
}
case a.LogLevel == logger.Info:
sql, rows := fc()
if rows == -1 {
log.Context(ctx).Infof("[%.3fms] [rows:%v] %s", float64(elapsed.Nanoseconds())/1e6, "-", sql)
} else {
log.Context(ctx).Infof("[%.3fms] [rows:%v] %s", float64(elapsed.Nanoseconds())/1e6, rows, sql)
}
}
}