58 lines
1.3 KiB
Go
58 lines
1.3 KiB
Go
package dtm
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import (
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"fmt"
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jsonitor "github.com/json-iterator/go"
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"github.com/sirupsen/logrus"
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"github.com/yedf/dtm/common"
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)
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type Saga struct {
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SagaData
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Server string
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}
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type SagaData struct {
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Gid string `json:"gid"`
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TransType string `json:"trans_type"`
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Steps []SagaStep `json:"steps"`
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}
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type SagaStep struct {
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Action string `json:"action"`
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Compensate string `json:"compensate"`
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Data string `json:"data"`
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}
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func SagaNew(server string) *Saga {
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return &Saga{
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SagaData: SagaData{
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TransType: "saga",
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},
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Server: server,
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}
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}
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func (s *Saga) Add(action string, compensate string, postData interface{}) *Saga {
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logrus.Printf("saga %s Add %s %s %v", s.Gid, action, compensate, postData)
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step := SagaStep{
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Action: action,
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Compensate: compensate,
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Data: common.MustMarshalString(postData),
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}
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s.Steps = append(s.Steps, step)
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return s
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}
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func (s *Saga) Commit() error {
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logrus.Printf("committing %s body: %v", s.Gid, &s.SagaData)
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resp, err := common.RestyClient.R().SetBody(&s.SagaData).Post(fmt.Sprintf("%s/commit", s.Server))
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if err != nil {
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return err
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}
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if resp.StatusCode() != 200 {
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return fmt.Errorf("commit failed: %v", resp.Body())
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}
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s.Gid = jsonitor.Get(resp.Body(), "gid").ToString()
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return nil
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}
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