344 lines
10 KiB
Go
344 lines
10 KiB
Go
package intimate
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import (
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"database/sql"
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"log"
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"time"
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_ "github.com/go-sql-driver/mysql"
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)
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// OperatorFlag 标志
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type OperatorFlag int32
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const (
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// OperatorOK 等待被处理
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OperatorOK OperatorFlag = 100
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// OperatorExtractorOK 提取数据完成
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OperatorExtractorOK OperatorFlag = 200
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// OperatorWait 等待被处理
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OperatorWait OperatorFlag = 1000
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// OperatorError 错误标志
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OperatorError OperatorFlag = 10000
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)
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type ISet interface {
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Set(string, interface{})
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}
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type IGet interface {
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Get(string) interface{}
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}
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type IGetSet interface {
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ISet
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IGet
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}
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// SourceStore 储存
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type StoreSource struct {
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table string
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db *sql.DB
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errorCount int
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errorLimit int
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}
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// NewSourceStore 创建一个存储实例
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func NewStoreSource(table string) *StoreSource {
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db, err := sql.Open("mysql", InitConfig.Database.SourceURI)
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if err != nil {
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panic(err)
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}
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return &StoreSource{table: table, db: db}
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}
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func (store *StoreSource) errorAlarm(err error) {
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if err != nil {
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log.Println("store error: ", err)
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// 报警. 如果数据插入有问题
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store.errorCount++
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if store.errorCount >= store.errorLimit {
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// 数据库频繁操作初问题 报警, 减少没意义的请求
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}
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} else {
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if store.errorCount > 0 {
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store.errorCount--
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}
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}
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}
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// Insert 插入数据
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func (store *StoreSource) Insert(isource IGet) {
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_, err := store.db.Exec("insert into "+store.table+"(url, target_type, source, ext, operator, error_msg, streamer_id) values(?,?,?,?,?,?,?)", isource.Get("Url"), isource.Get("TargetType"), isource.Get("Source"), isource.Get("Ext"), isource.Get("Operator"), isource.Get("ErrorMsg"), isource.Get("StreamerId"))
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if err != nil {
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panic(err)
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}
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}
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// Update 更新数据
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func (store *StoreSource) Update(isource IGet) {
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_, err := store.db.Exec("update "+store.table+" set ext = ?, pass_gob = ?, operator = ?, error_msg = ? where uid = ?", isource.Get("Ext"), isource.Get("PassGob"), isource.Get("Operator"), isource.Get("ErrorMsg"), isource.Get("Uid"))
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if err != nil {
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panic(err)
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}
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}
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// UpdateOperator 更新数据操作标志位
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func (store *StoreSource) UpdateOperator(isource IGet) {
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_, err := store.db.Exec("update "+store.table+" set operator = ?, error_msg = ? where uid = ?", isource.Get("Operator"), isource.Get("ErrorMsg"), isource.Get("Uid"))
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if err != nil {
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panic(err)
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}
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}
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// UpdateError 更新错误数据
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func (store *StoreSource) UpdateError(isource IGetSet, err error) {
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isource.Set("Operator", int32(OperatorError)+isource.Get("Operator").(int32))
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isource.Set("ErrorMsg", sql.NullString{String: err.Error(), Valid: true})
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_, dberr := store.db.Exec("update "+store.table+" set operator = ?, error_msg = ? where uid = ?", isource.Get("Operator"), isource.Get("ErrorMsg"), isource.Get("Uid"))
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if dberr != nil {
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// email tell owner to deal with
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panic(err)
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}
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}
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// Restore 恢复Operator数据状态
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func (store *StoreSource) Restore(isource IGet) {
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_, dberr := store.db.Exec("update "+store.table+" set operator = ? where uid = ?", isource.Get("LastOperator"), isource.Get("Uid"))
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if dberr != nil {
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// email tell owner to deal with
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panic(dberr)
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}
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}
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// Pop 弹出一条未处理的数据
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func (store *StoreSource) Pop(targetType string, operators ...int32) (*Source, error) {
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tx, err := store.db.Begin()
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if err != nil {
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return nil, err
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}
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var args = []interface{}{targetType}
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selectSQL := `select uid, url, target_type, source, ext, operator, update_time, streamer_id from ` + store.table + ` where target_type = ?`
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if len(operators) == 0 {
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selectSQL += " and operator = ?"
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args = append(args, 0)
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} else {
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for _, operator := range operators {
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selectSQL += " and operator = ?"
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args = append(args, operator)
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}
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}
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// log.Println(selectSQL + ` limit 1 for update`)
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row := tx.QueryRow(selectSQL+` limit 1 for update`, args...)
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defer func() {
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err := tx.Commit()
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if err != nil {
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log.Println(err)
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err = tx.Rollback()
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if err != nil {
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log.Println(err)
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}
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}
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}()
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s := &Source{}
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// uid, url, target_type, source, ext, operator
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err = row.Scan(&s.Uid, &s.Url, &s.TargetType, &s.Source, &s.Ext, &s.Operator, &s.UpdateTime, &s.StreamerId)
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if err != nil {
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return nil, err
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}
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s.Set("LastOperator", s.Operator)
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_, err = tx.Exec("update "+store.table+" set operator = ? where uid = ?", OperatorWait, s.Uid)
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return s, nil
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}
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// StreamerTable 主播表名称
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const StreamerTable string = "streamer"
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// CollectLogTable 采集日志表
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const CollectLogTable string = "collect_log"
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type StoreExtractor struct {
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db *sql.DB
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errorCount int
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errorLimit int
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}
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func (store *StoreExtractor) errorAlarm(err error) {
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if err != nil {
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log.Println("store error: ", err)
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// 报警. 如果数据插入有问题
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store.errorCount++
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if store.errorCount >= store.errorLimit {
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// 数据库频繁操作初问题 报警, 减少没意义的请求
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}
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} else {
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if store.errorCount > 0 {
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store.errorCount--
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}
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}
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}
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// NewStoreExtractor 生成一个extractor库的相关链接
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func NewStoreExtractor() *StoreExtractor {
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db, err := sql.Open("mysql", InitConfig.Database.ExtractorURI)
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if err != nil {
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panic(err)
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}
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return &StoreExtractor{db: db}
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}
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// Pop 弹出一条未处理的数据
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func (store *StoreExtractor) Pop(platform string, operators ...int32) (*Streamer, error) {
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tx, err := store.db.Begin()
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if err != nil {
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return nil, err
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}
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var args = []interface{}{platform}
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selectSQL := `select uid, update_time, user_id, update_url, is_update_streamer from ` + StreamerTable + ` where platform = ? and TIMESTAMPDIFF(MINUTE , update_time, CURRENT_TIMESTAMP()) >= update_interval`
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if len(operators) == 0 {
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selectSQL += " and operator = ?"
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args = append(args, 0)
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} else {
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for _, operator := range operators {
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selectSQL += " and operator = ?"
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args = append(args, operator)
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}
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}
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defer func() {
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err := tx.Commit()
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if err != nil {
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log.Println(err)
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err = tx.Rollback()
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if err != nil {
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log.Println(err)
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}
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}
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}()
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// log.Println(selectSQL + ` limit 1 for update`)
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row := tx.QueryRow(selectSQL+` limit 1 for update`, args...)
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s := &Streamer{}
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// uid, url, target_type, source, ext, operator
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err = row.Scan(&s.Uid, &s.UpdateTime, &s.UserId, &s.UpdateUrl, &s.IsUpdateStreamer)
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if err != nil {
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return nil, err
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}
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s.Set("LastOperator", s.Operator)
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_, err = tx.Exec("update "+StreamerTable+" set operator = ? where uid = ?", OperatorWait, s.Uid)
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return s, nil
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}
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// InsertStreamer Streamer表, 插入数据
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func (store *StoreExtractor) InsertStreamer(streamer IGet) (isExists bool) {
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// select uid from table where platform = ? and user_id = ?
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selectSQL := "SELECT is_update_url FROM " + StreamerTable + " WHERE platform = ? AND user_id = ?"
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tx, err := store.db.Begin()
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if err != nil {
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panic(err)
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}
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defer func() {
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err = tx.Commit()
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if err != nil {
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rerr := tx.Rollback()
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if rerr != nil {
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log.Println(rerr)
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}
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panic(err)
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}
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}()
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row := tx.QueryRow(selectSQL+` LIMIT 1 FOR UPDATE`, streamer.Get("Platform"), streamer.Get("UserId"))
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var isUpdateUrl bool
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if err = row.Scan(&isUpdateUrl); err == nil {
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if isUpdateUrl {
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tx.Exec("UPDATE "+StreamerTable+" SET update_url = ?", streamer.Get("UpdateUrl"))
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}
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return true
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}
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_, err = tx.Exec("INSERT INTO "+StreamerTable+"(platform, user_id, update_url, update_time) VALUES(?,?,?,?);", streamer.Get("Platform"), streamer.Get("UserId"), streamer.Get("UpdateUrl"), time.Now().Add(-time.Minute*30))
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if err != nil {
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panic(err)
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}
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return false
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}
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// UpdateError 更新错误数据
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func (store *StoreExtractor) UpdateError(isource IGetSet, err error) {
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isource.Set("Operator", int32(OperatorError)+isource.Get("Operator").(int32))
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isource.Set("ErrorMsg", sql.NullString{String: err.Error(), Valid: true})
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_, dberr := store.db.Exec("update "+StreamerTable+" set operator = ?, error_msg = ? where uid = ?", isource.Get("Operator"), isource.Get("ErrorMsg"), isource.Get("Uid"))
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if dberr != nil {
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// email tell owner to deal with
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panic(err)
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}
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}
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// UpdateStreamerLog 只更新Streamer的关联日志和时间戳
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func (store *StoreExtractor) UpdateStreamerLog(latestUid int64, streamerUid int64) {
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_, err := store.db.Exec("UPDATE "+StreamerTable+" SET latest_log_uid = ?, update_time = CURRENT_TIMESTAMP() WHERE uid = ?", latestUid, streamerUid)
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if err != nil {
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panic(err)
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}
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}
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// UpdateOperator Streamer表, 插入数据
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func (store *StoreExtractor) UpdateOperator(isource IGet) {
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_, err := store.db.Exec("update "+StreamerTable+" set operator = ?, error_msg = ? where uid = ?", isource.Get("Operator"), isource.Get("ErrorMsg"), isource.Get("Uid"))
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if err != nil {
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panic(err)
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}
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}
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// UpdateStreamer Streamer表, 插入数据
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func (store *StoreExtractor) UpdateStreamer(isource IGet) {
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_, err := store.db.Exec("UPDATE "+StreamerTable+" SET user_name = ?, live_url = ?, channel = ?, latest_log_uid = ?, ext = ?, operator = ?, update_time = ? WHERE uid = ?;",
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isource.Get("UserName"), isource.Get("LiveUrl"), isource.Get("Channel"), isource.Get("LatestLogUid"), isource.Get("Ext"), isource.Get("Operator"), isource.Get("UpdateTime"), isource.Get("Uid"))
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if err != nil {
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panic(err)
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}
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}
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// InsertCollectLog CollectLog表插入数据
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func (store *StoreExtractor) InsertCollectLog(isource IGet) int64 {
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tx, err := store.db.Begin()
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defer func() {
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if err := recover(); err != nil {
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tx.Rollback()
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log.Panic(err)
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}
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}()
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if err != nil {
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panic(err)
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}
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result, err := tx.Exec("insert into "+CollectLogTable+"(streamer_uid, platform, user_id, is_live_streaming, is_error, followers, views, giver, gratuity, live_title, live_start_time, live_end_time, update_time, tags, ext, error_msg) values(?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)",
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isource.Get("StreamerUid"), isource.Get("Platform"), isource.Get("UserId"), isource.Get("IsLiveStreaming"), isource.Get("IsError"), isource.Get("Followers"), isource.Get("Views"), isource.Get("Giver"), isource.Get("Gratuity"), isource.Get("LiveTitle"), isource.Get("LiveStartTime"), isource.Get("LiveEndTime"), isource.Get("UpdateTime"), isource.Get("Tags"), isource.Get("Ext"), isource.Get("ErrorMsg"),
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)
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if err != nil {
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panic(err)
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}
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logUid, err := result.LastInsertId()
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if err != nil {
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panic(err)
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}
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_, err = tx.Exec("update "+StreamerTable+" set latest_log_uid = ? where uid = ?", logUid, isource.Get("StreamerUid"))
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if err = tx.Commit(); err != nil {
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panic(err)
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}
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return logUid
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}
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