mirror of
https://github.com/hanzoai/tasks.git
synced 2026-10-04 02:04:03 +00:00
Yichao YangandGitHub
b8006bf0c5
## What changed? <!-- Describe what has changed in this PR --> - Add a new replication task type for sync HSM states when there's no history events associated with the state transition. - This task is only supported in streaming replication. It will go directly to DLQ with the old replication stack. - This task will only be used for the short term nexus replication solution and will be deprecated once the state based replication is fully implemented. Some minor fixes: - Fixed empty startEventID check in getRawHistoryV2 api - Rename helper methods in ActivityStateReplicatorImpl from testXXX to compareXXX. ## Why? <!-- Tell your future self why have you made these changes --> - Sync state only hsm changes ## How did you test it? <!-- How have you verified this change? Tested locally? Added a unit test? Checked in staging env? --> - Unit test - Functional tests will be added in a separate PR ## Potential risks <!-- Assuming the worst case, what can be broken when deploying this change to production? --> ## Documentation <!-- Have you made sure this change doesn't falsify anything currently stated in `docs/`? If significant new behavior is added, have you described that in `docs/`? --> ## Is hotfix candidate? <!-- Is this PR a hotfix candidate or does it require a notification to be sent to the broader community? (Yes/No) --> - No
119 lines
3.1 KiB
Go
119 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 dummy
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import (
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"encoding/json"
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"go.temporal.io/api/serviceerror"
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"go.temporal.io/server/service/history/hsm"
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)
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type State int
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const (
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State0 State = iota
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State1
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)
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var StateMachineType = "dummy.Dummy"
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func MachineCollection(tree *hsm.Node) hsm.Collection[*Dummy] {
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return hsm.NewCollection[*Dummy](tree, StateMachineType)
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}
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// Dummy state machine.
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// It's used for writing unit tests. Do not use in production!
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type Dummy struct {
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CurrentState State
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}
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var _ hsm.StateMachine[State] = &Dummy{}
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// NewDummy creates a new callback in the STANDBY state from given params.
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func NewDummy() *Dummy {
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return &Dummy{
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CurrentState: State0,
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}
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}
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func (sm *Dummy) State() State {
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return sm.CurrentState
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}
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func (sm *Dummy) SetState(state State) {
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sm.CurrentState = state
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}
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func (sm Dummy) RegenerateTasks(*hsm.Node) ([]hsm.Task, error) {
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return []hsm.Task{}, nil
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}
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type stateMachineDefinition struct{}
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var _ hsm.StateMachineDefinition = stateMachineDefinition{}
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func (stateMachineDefinition) Type() string {
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return StateMachineType
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}
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func (stateMachineDefinition) Deserialize(d []byte) (any, error) {
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sm := &Dummy{}
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err := json.Unmarshal(d, &sm)
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return sm, err
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}
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func (stateMachineDefinition) Serialize(state any) ([]byte, error) {
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return json.Marshal(state)
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}
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func (stateMachineDefinition) CompareState(s1, s2 any) (int, error) {
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// This is just a dummy used in tests, CompareState is not used.
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return 0, serviceerror.NewUnimplemented("CompareState not implemented for dummy state machine")
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}
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func RegisterStateMachine(r *hsm.Registry) error {
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return r.RegisterMachine(stateMachineDefinition{})
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}
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type Event0 struct{}
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var Transition0 = hsm.NewTransition(
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[]State{State0, State1},
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State0,
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func(sm *Dummy, e Event0) (hsm.TransitionOutput, error) {
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return hsm.TransitionOutput{}, nil
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},
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)
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type Event1 struct{}
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var Transition1 = hsm.NewTransition(
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[]State{State0, State1},
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State1,
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func(sm *Dummy, e Event1) (hsm.TransitionOutput, error) {
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return hsm.TransitionOutput{}, nil
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},
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)
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