346 lines
8.4 KiB
Go
346 lines
8.4 KiB
Go
// Package mysql ...
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//
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// Description : mysql客户端
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 2021-03-01 9:20 下午
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package mysql
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import (
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"fmt"
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"path/filepath"
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"strings"
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"sync"
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"git.zhangdeman.cn/zhangdeman/util"
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"git.zhangdeman.cn/zhangdeman/logger/wrapper"
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"github.com/gin-gonic/gin"
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"go.uber.org/zap"
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"git.zhangdeman.cn/zhangdeman/logger"
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gormLogger "gorm.io/gorm/logger"
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"gorm.io/driver/mysql"
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"gorm.io/gorm"
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)
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var (
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// Client mysql客户端
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Client *client
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)
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func init() {
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Client = &client{
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lock: &sync.RWMutex{},
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clientTable: make(map[string]*DBClient),
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}
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}
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type client struct {
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lock *sync.RWMutex
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clientTable map[string]*DBClient
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}
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// AddWithConfigFile 使用文件生成新的客户端，文件名去掉后缀作为flag
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 19:19 2022/6/5
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func (c *client) AddWithConfigFile(cfgFile string) error {
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return nil
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}
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// BatchAddWithConfigDir 自动读取目录下配置文件, 生成客户端
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 19:19 2022/6/5
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func (c *client) BatchAddWithConfigDir(cfgDir string) error {
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return nil
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}
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// getMysqlCfgFileList 获取mysql配置文件列表
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 14:39 2022/6/9
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func (c *client) getMysqlCfgFileList(cfgDir string) ([]cfgFile, error) {
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filepathNames, _ := filepath.Glob(filepath.Join(cfgDir, "*"))
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cfgFileList := make([]cfgFile, 0)
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for i := range filepathNames {
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fileArr := strings.Split(filepathNames[i], ".")
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if len(fileArr) < 2 {
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// 获取不到类型
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continue
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}
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fileType := strings.ToLower(fileArr[len(fileArr)-1])
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switch fileType {
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case FileTypeYaml:
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fallthrough
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case FileTypeYml:
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cfgFileList = append(cfgFileList, cfgFile{
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Path: filepathNames[i],
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Type: FileTypeYaml,
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})
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util.File.ReadYmlConfig()
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case FileTypeJson:
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cfgFileList = append(cfgFileList, cfgFile{
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Path: filepathNames[i],
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Type: FileTypeJson,
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})
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default:
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// 不是JSON , 也不是YML, 跳过
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continue
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}
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}
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return cfgFileList, nil
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}
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// GetDBClient 获取db client
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 19:32 2022/6/5
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func (c *client) GetDBClient(ctx *gin.Context, dbFlag string) (*DBClient, error) {
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c.lock.RLock()
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defer c.lock.RUnlock()
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var (
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exist bool
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dbClient *DBClient
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)
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if dbClient, exist = c.clientTable[dbFlag]; !exist {
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return nil, fmt.Errorf("%s 标识的数据库实例不存在! ", dbFlag)
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}
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return dbClient, nil
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}
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// GetMasterClient 获取主库客户端
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 19:36 2022/6/5
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func (c *client) GetMasterClient(ctx *gin.Context, dbFlag string) (*gorm.DB, error) {
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var (
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err error
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dbClient *DBClient
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)
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if dbClient, err = c.GetDBClient(ctx, dbFlag); nil != err {
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return nil, err
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}
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session := dbClient.master.Session(&gorm.Session{})
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session.Logger = dbClient.getLogger(ctx, session, dbFlag+"-master")
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return session, nil
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}
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// GetSlaveClient 获取从库客户端
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 19:37 2022/6/5
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func (c *client) GetSlaveClient(ctx *gin.Context, dbFlag string) (*gorm.DB, error) {
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var (
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err error
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dbClient *DBClient
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)
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if dbClient, err = c.GetDBClient(ctx, dbFlag); nil != err {
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return nil, err
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}
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session := dbClient.slave.Session(&gorm.Session{})
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session.Logger = dbClient.getLogger(ctx, session, dbFlag+"-slave")
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return session, nil
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}
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// getLogInstance 获取日志实例
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 20:23 2022/6/5
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func (c *client) getLogInstance(logConf *LogConfig, loggerInstance *zap.Logger) (*zap.Logger, error) {
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if nil != loggerInstance {
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return loggerInstance, nil
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}
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if nil == logConf {
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return nil, nil
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}
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logConfList := []logger.SetLoggerOptionFunc{logger.WithEncoder(logConf.Encoder), logger.WithCallerSkip(logConf.Skip), logger.WithCaller()}
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if logConf.ConsoleOutput {
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logConfList = append(logConfList, logger.WithConsoleOutput())
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}
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var (
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err error
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)
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if loggerInstance, err = logger.NewLogger(logConf.Level, logConf.SplitConfig, logConfList...); nil != err {
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return nil, err
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}
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return loggerInstance, nil
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}
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// getGormClient 获取GORM client方法
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 11:24 2022/6/6
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func (c *client) getGormClient() (*gorm.DB, error) {
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return nil, nil
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}
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// BatchNewDBClient 批量设置数据库实例, 读取指定目录下的yaml文件, 文件名作为标识, 内容是数据库具体配置
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 15:43 2022/6/5
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func BatchNewDBClient(dbConfigDir string) {
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}
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// NewDBClient ...
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 3:09 PM 2021/12/24
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func NewDBClient(masterConf *DBConfig, slaveConf *DBConfig, logConf *LogConfig, loggerInstance *zap.Logger, extraRequestFieldList []string) (*DBClient, error) {
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client := &DBClient{
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extraFieldList: extraRequestFieldList,
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}
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var err error
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// 日志初始化失败
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if client.loggerInstance, err = getLogInstance(logConf, loggerInstance); nil != err {
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return nil, err
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}
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if client.master, err = GetDatabaseClient(masterConf, nil); nil != err {
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return nil, err
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}
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if client.slave, err = GetDatabaseClient(slaveConf, nil); nil != err {
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return nil, err
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}
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return client, nil
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}
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// DBClient 包装日志实例
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 3:09 PM 2021/12/24
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type DBClient struct {
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dbFlag string // 数据库标识
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loggerInstance *zap.Logger // 日志实例
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master *gorm.DB // 主库
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slave *gorm.DB // 从库
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extraFieldList []string // 提取的字段
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}
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// SetFlag 设置数据库标识
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 16:18 2022/6/5
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func (dc *DBClient) SetFlag(dbFlag string) {
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dc.dbFlag = dbFlag
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}
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// GetMaster 获取主库连接
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 3:28 PM 2021/12/24
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func (dc *DBClient) GetMaster(ctx *gin.Context) *gorm.DB {
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session := dc.master.Session(&gorm.Session{})
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session.Logger = dc.getLogger(ctx, session, "slave")
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return session
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}
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// GetSlave 获取从库链接
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 3:29 PM 2021/12/24
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func (dc *DBClient) GetSlave(ctx *gin.Context) *gorm.DB {
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session := dc.slave.Session(&gorm.Session{})
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session.Logger = dc.getLogger(ctx, session, "slave")
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return session
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}
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// getLogger 获取日志实例
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 3:45 PM 2021/12/24
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func (dc *DBClient) getLogger(ctx *gin.Context, dbClient *gorm.DB, node string) gormLogger.Interface {
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return wrapper.NewGormLoggerWithInstance(ctx, dbClient, dc.loggerInstance, node, dc.extraFieldList)
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}
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// getLogInstance 获取日志实例
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 3:20 PM 2021/12/24
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func getLogInstance(logConf *LogConfig, loggerInstance *zap.Logger) (*zap.Logger, error) {
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if nil != loggerInstance {
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return loggerInstance, nil
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}
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if nil == logConf {
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return nil, nil
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}
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logConfList := []logger.SetLoggerOptionFunc{logger.WithEncoder(logConf.Encoder), logger.WithCallerSkip(logConf.Skip), logger.WithCaller()}
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if logConf.ConsoleOutput {
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logConfList = append(logConfList, logger.WithConsoleOutput())
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}
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var (
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err error
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)
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if loggerInstance, err = logger.NewLogger(logConf.Level, logConf.SplitConfig, logConfList...); nil != err {
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return nil, err
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}
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return loggerInstance, nil
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}
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// GetDatabaseClient 获取日志实例
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 10:49 下午 2021/3/1
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func GetDatabaseClient(conf *DBConfig, logConf *LogConfig) (*gorm.DB, error) {
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var (
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instance *gorm.DB
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err error
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loggerInstance *zap.Logger
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)
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if instance, err = gorm.Open(mysql.Open(buildConnectionDSN(conf)), &gorm.Config{}); nil != err {
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return nil, err
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}
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if nil != logConf {
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if loggerInstance, err = getLogInstance(logConf, nil); nil != err {
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return nil, err
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}
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instance.Logger = wrapper.NewGormLoggerWithInstance(nil, instance, loggerInstance, "", nil)
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}
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return instance, nil
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}
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// buildConnectionDSN 构建建立连接的DSN
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//
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// Author : go_developer@163.com<白茶清欢>
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//
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// Date : 9:34 下午 2021/3/1
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func buildConnectionDSN(conf *DBConfig) string {
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return fmt.Sprintf(
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"%s:%s@tcp(%s:%d)/%s?charset=%s&parseTime=True&loc=Local",
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conf.Username,
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conf.Password,
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conf.Host,
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conf.Port,
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conf.Database,
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conf.Charset,
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)
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}
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