79 lines
2.1 KiB
Go
79 lines
2.1 KiB
Go
package dtmsvr
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import (
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"errors"
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"fmt"
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"github.com/gin-gonic/gin"
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"github.com/yedf/dtm/common"
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"gorm.io/gorm"
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"gorm.io/gorm/clause"
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)
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func AddRoute(engine *gin.Engine) {
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engine.POST("/api/dtmsvr/prepare", common.WrapHandler(Prepare))
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engine.POST("/api/dtmsvr/commit", common.WrapHandler(Commit))
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engine.POST("/api/dtmsvr/branch", common.WrapHandler(Branch))
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engine.POST("/api/dtmsvr/rollback", common.WrapHandler(Rollback))
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engine.GET("/api/dtmsvr/query", common.WrapHandler(Query))
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}
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func Prepare(c *gin.Context) (interface{}, error) {
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m := TransFromContext(c)
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m.Status = "prepared"
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m.SaveNew(dbGet())
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return M{"message": "SUCCESS", "gid": m.Gid}, nil
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}
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func Commit(c *gin.Context) (interface{}, error) {
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db := dbGet()
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m := TransFromContext(c)
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m.Status = "committed"
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m.SaveNew(db)
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go m.Process(db)
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return M{"message": "SUCCESS", "gid": m.Gid}, nil
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}
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func Rollback(c *gin.Context) (interface{}, error) {
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db := dbGet()
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m := TransFromContext(c)
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m = TransFromDb(db, m.Gid)
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if m.TransType != "xa" || m.Status != "prepared" {
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return nil, fmt.Errorf("unkown trans data. type: %s status: %s for gid: %s", m.TransType, m.Status, m.Gid)
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}
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// 当前xa trans的状态为prepared，直接处理，则是回滚
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go m.Process(db)
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return M{"message": "SUCCESS"}, nil
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}
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func Branch(c *gin.Context) (interface{}, error) {
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branch := TransBranch{}
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err := c.BindJSON(&branch)
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e2p(err)
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branches := []TransBranch{branch, branch}
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db := dbGet()
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branches[0].BranchType = "rollback"
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branches[1].BranchType = "commit"
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db.Must().Clauses(clause.OnConflict{
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DoNothing: true,
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}).Create(branches)
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e2p(err)
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return M{"message": "SUCCESS"}, nil
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}
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func Query(c *gin.Context) (interface{}, error) {
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gid := c.Query("gid")
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if gid == "" {
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return nil, errors.New("no gid specified")
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}
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trans := TransGlobal{}
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db := dbGet()
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dbr := db.Must().Where("gid", gid).First(&trans)
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if dbr.Error == gorm.ErrRecordNotFound {
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return M{"transaction": nil, "branches": [0]int{}}, nil
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}
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branches := []TransBranch{}
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db.Must().Where("gid", gid).Find(&branches)
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return M{"transaction": trans, "branches": branches}, nil
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}
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