🔥A cross-language distributed transaction manager. Support xa, tcc, saga, transactional messages. 跨语言分布式事务管理器
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/*
* Copyright (c) 2021 yedf. All rights reserved.
* Use of this source code is governed by a BSD-style
* license that can be found in the LICENSE file.
*/
package examples
import (
"fmt"
"github.com/yedf/dtm/common"
"github.com/yedf/dtm/dtmcli/dtmimp"
)
var config = &common.Config
func resetXaData() {
if config.ExamplesDB.Driver != "mysql" {
return
}
db := dbGet()
type XaRow struct {
Data string
}
xas := []XaRow{}
db.Must().Raw("xa recover").Scan(&xas)
for _, xa := range xas {
db.Must().Exec(fmt.Sprintf("xa rollback '%s'", xa.Data))
}
}
// PopulateDB populate example mysql data
func PopulateDB(skipDrop bool) {
resetXaData()
file := fmt.Sprintf("%s/examples.%s.sql", common.GetSqlDir(), config.ExamplesDB.Driver)
common.RunSQLScript(config.ExamplesDB, file, skipDrop)
file = fmt.Sprintf("%s/dtmcli.barrier.%s.sql", common.GetSqlDir(), config.ExamplesDB.Driver)
common.RunSQLScript(config.ExamplesDB, file, skipDrop)
}
type sampleInfo struct {
Arg string
Action func() string
Desc string
}
// Samples 所有的示例都会注册到这里
var Samples = map[string]*sampleInfo{}
func addSample(name string, fn func() string) {
dtmimp.LogIfFatalf(Samples[name] != nil, "%s already exists", name)
Samples[name] = &sampleInfo{Arg: name, Action: fn}
}