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deb8ae15ef
## What changed? Building on #6065, this PR introduces the bulk of scheduler logic to the HSM-based prototype. This makes the prototype able to correctly start workflows according to a schedule, but does not yet port the original long-polling logic. The plan is to replace long-polling with HSM-based callbacks in the subsequent PR. HSM also makes most of the side-effects or activities based logic in the original scheduler obsolete. ## Why? #6065 ## How did you test it? Unit tests & Functional Tests ## Potential risks #6065 ## Documentation None ## Is hotfix candidate? No --------- Co-authored-by: Roey Berman <[email protected]>
103 lines
3.1 KiB
Go
103 lines
3.1 KiB
Go
// The MIT License
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//
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// Copyright (c) 2024 Temporal Technologies Inc. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package scheduler
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import (
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"fmt"
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"time"
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"go.temporal.io/server/service/history/hsm"
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)
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const (
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TaskTypeSchedulerWait = "scheduler.SchedulerWait"
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TaskTypeSchedulerExecute = "scheduler.SchedulerExecute"
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)
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type SchedulerWaitTask struct {
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Deadline time.Time
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}
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func (SchedulerWaitTask) Type() string {
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return TaskTypeSchedulerWait
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}
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func (t SchedulerWaitTask) Kind() hsm.TaskKind {
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return hsm.TaskKindTimer{Deadline: t.Deadline}
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}
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func (SchedulerWaitTask) Concurrent() bool {
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return false
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}
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type ScheduleWaitTaskSerializer struct{}
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func (ScheduleWaitTaskSerializer) Deserialize(data []byte, kind hsm.TaskKind) (hsm.Task, error) {
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if kind, ok := kind.(hsm.TaskKindTimer); ok {
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return SchedulerWaitTask{Deadline: kind.Deadline}, nil
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}
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return nil, fmt.Errorf("%w: expected timer", hsm.ErrInvalidTaskKind)
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}
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func (ScheduleWaitTaskSerializer) Serialize(hsm.Task) ([]byte, error) {
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return nil, nil
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}
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type SchedulerActivateTask struct {
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Destination string
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}
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var _ hsm.Task = SchedulerActivateTask{}
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func (SchedulerActivateTask) Type() string {
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return TaskTypeSchedulerExecute
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}
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func (t SchedulerActivateTask) Kind() hsm.TaskKind {
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return hsm.TaskKindOutbound{Destination: t.Destination}
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}
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func (SchedulerActivateTask) Concurrent() bool {
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return false
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}
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type ScheduleExecuteTaskSerializer struct{}
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func (ScheduleExecuteTaskSerializer) Deserialize(data []byte, kind hsm.TaskKind) (hsm.Task, error) {
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if kind, ok := kind.(hsm.TaskKindOutbound); ok {
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return SchedulerActivateTask{Destination: kind.Destination}, nil
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}
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return nil, fmt.Errorf("%w: expected outbound", hsm.ErrInvalidTaskKind)
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}
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func (ScheduleExecuteTaskSerializer) Serialize(hsm.Task) ([]byte, error) {
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return nil, nil
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}
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func RegisterTaskSerializers(reg *hsm.Registry) error {
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if err := reg.RegisterTaskSerializer(TaskTypeSchedulerWait, ScheduleWaitTaskSerializer{}); err != nil {
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return err
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}
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return reg.RegisterTaskSerializer(TaskTypeSchedulerExecute, ScheduleExecuteTaskSerializer{})
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}
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