-
Notifications
You must be signed in to change notification settings - Fork 0
/
writer.go
82 lines (71 loc) · 2.26 KB
/
writer.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
// Copyright 2020 the go-etl Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package runner
import (
"context"
"fmt"
"log/slog"
"github.com/as-tool/as-etl-engine/core/plugin"
"github.com/as-tool/as-etl-engine/core/spi/writer"
)
// Writer: Write Runner
type Writer struct {
*baseRunner
receiver plugin.RecordReceiver
task writer.Task
describe string
}
// NewWriter: Creates a write runner by reading the task, the recorder, and the task keyword
func NewWriter(task writer.Task, receiver plugin.RecordReceiver, taskKey string) *Writer {
return &Writer{
baseRunner: &baseRunner{},
receiver: receiver,
task: task,
describe: taskKey,
}
}
// Plugin: Plugin task
func (w *Writer) Plugin() plugin.Task {
return w.task
}
// Run: Runs in the following order: Init->Prepare->StartWrite->Post->Destroy
func (w *Writer) Run(ctx context.Context) (err error) {
defer func() {
slog.Debug(fmt.Sprintf("datax writer runner %v starts to destroy", w.describe))
if destroyErr := w.task.Destroy(ctx); destroyErr != nil {
slog.Error(fmt.Sprintf("task destroy fail, err: %v", destroyErr))
}
}()
slog.Debug(fmt.Sprintf("datax writer runner %v starts to init", w.describe))
if err = w.task.Init(ctx); err != nil {
return err
}
slog.Debug(fmt.Sprintf("datax writer runner %v starts to prepare", w.describe))
if err = w.task.Prepare(ctx); err != nil {
return err
}
slog.Debug(fmt.Sprintf("datax writer runner %v starts to StartWrite", w.describe))
if err = w.task.StartWrite(ctx, w.receiver); err != nil {
return err
}
slog.Debug(fmt.Sprintf("datax writer runner %v starts to post", w.describe))
if err = w.task.Post(ctx); err != nil {
return err
}
return
}
// Shutdown: Closes down
func (w *Writer) Shutdown() error {
return w.receiver.Shutdown()
}