mirror of
https://gitee.com/dromara/mayfly-go
synced 2025-11-04 00:10:25 +08:00
105 lines
2.7 KiB
Go
105 lines
2.7 KiB
Go
package dbi
|
||
|
||
import (
|
||
"fmt"
|
||
machineapp "mayfly-go/internal/machine/application"
|
||
"mayfly-go/internal/machine/mcm"
|
||
"mayfly-go/pkg/errorx"
|
||
"mayfly-go/pkg/logx"
|
||
)
|
||
|
||
type DbInfo struct {
|
||
InstanceId uint64 // 实例id
|
||
Id uint64 // dbId
|
||
Name string
|
||
|
||
Type DbType // 类型，mysql postgres等
|
||
Host string
|
||
Port int
|
||
Sid string // oracle数据库需要指定sid
|
||
Network string
|
||
Username string
|
||
Password string
|
||
Params string
|
||
Database string
|
||
|
||
FlowProcdefKey string // 流程定义key
|
||
TagPath []string
|
||
SshTunnelMachineId int
|
||
|
||
Meta Meta
|
||
}
|
||
|
||
// 获取记录日志的描述
|
||
func (d *DbInfo) GetLogDesc() string {
|
||
return fmt.Sprintf("DB[id=%d, tag=%s, name=%s, ip=%s:%d, database=%s]", d.Id, d.TagPath, d.Name, d.Host, d.Port, d.Database)
|
||
}
|
||
|
||
// 连接数据库
|
||
func (dbInfo *DbInfo) Conn(meta Meta) (*DbConn, error) {
|
||
if meta == nil {
|
||
return nil, errorx.NewBiz("数据库元信息接口不能为空")
|
||
}
|
||
|
||
// 赋值Meta，方便后续获取dialect等
|
||
dbInfo.Meta = meta
|
||
database := dbInfo.Database
|
||
|
||
conn, err := meta.GetSqlDb(dbInfo)
|
||
if err != nil {
|
||
logx.Errorf("连接db失败: %s:%d/%s, err:%s", dbInfo.Host, dbInfo.Port, database, err.Error())
|
||
return nil, errorx.NewBiz(fmt.Sprintf("数据库连接失败: %s", err.Error()))
|
||
}
|
||
|
||
err = conn.Ping()
|
||
if err != nil {
|
||
logx.Errorf("db ping失败: %s:%d/%s, err:%s", dbInfo.Host, dbInfo.Port, database, err.Error())
|
||
return nil, errorx.NewBiz(fmt.Sprintf("数据库连接失败: %s", err.Error()))
|
||
}
|
||
|
||
dbc := &DbConn{Id: GetDbConnId(dbInfo.Id, database), Info: dbInfo}
|
||
|
||
// 最大连接周期，超过时间的连接就close
|
||
// conn.SetConnMaxLifetime(100 * time.Second)
|
||
// 设置最大连接数
|
||
conn.SetMaxOpenConns(5)
|
||
// 设置闲置连接数
|
||
conn.SetMaxIdleConns(1)
|
||
dbc.db = conn
|
||
logx.Infof("连接db: %s:%d/%s", dbInfo.Host, dbInfo.Port, database)
|
||
|
||
return dbc, nil
|
||
}
|
||
|
||
// 如果使用了ssh隧道，将其host port改变其本地映射host port
|
||
func (di *DbInfo) IfUseSshTunnelChangeIpPort() error {
|
||
// 开启ssh隧道
|
||
if di.SshTunnelMachineId > 0 {
|
||
sshTunnelMachine, err := GetSshTunnel(di.SshTunnelMachineId)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
exposedIp, exposedPort, err := sshTunnelMachine.OpenSshTunnel(fmt.Sprintf("db:%d", di.Id), di.Host, di.Port)
|
||
if err != nil {
|
||
return err
|
||
}
|
||
di.Host = exposedIp
|
||
di.Port = exposedPort
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// 根据ssh tunnel机器id返回ssh tunnel
|
||
func GetSshTunnel(sshTunnelMachineId int) (*mcm.SshTunnelMachine, error) {
|
||
return machineapp.GetMachineApp().GetSshTunnelMachine(sshTunnelMachineId)
|
||
}
|
||
|
||
// 获取连接id
|
||
func GetDbConnId(dbId uint64, db string) string {
|
||
if dbId == 0 {
|
||
return ""
|
||
}
|
||
|
||
return fmt.Sprintf("%d:%s", dbId, db)
|
||
}
|