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types.go
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types.go
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// The MIT License (MIT)
//
// Copyright (c) 2017-2020 Uber Technologies Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
// SOFTWARE.
package entity
import (
"errors"
"fmt"
"time"
"github.com/uber/cadence/common/persistence"
)
type (
// Execution is a base type for executions which should be checked or fixed.
Execution struct {
ShardID int
DomainID string
WorkflowID string
RunID string
State int
}
// ConcreteExecution is a concrete execution.
ConcreteExecution struct {
BranchToken []byte
TreeID string
BranchID string
Execution
}
// CurrentExecution is a current execution.
CurrentExecution struct {
CurrentRunID string
Execution
}
// Timer is a timer scheduled to be fired
Timer struct {
ShardID int
WorkflowID string
DomainID string
RunID string
VisibilityTimestamp time.Time
TaskID int64
TaskType int
TimeoutType int
EventID int64
ScheduleAttempt int64
Version int64
}
)
func (t *Timer) Validate() error {
if t.ShardID < 0 {
return fmt.Errorf("invalid ShardID: %v", t.ShardID)
}
if len(t.DomainID) == 0 {
return errors.New("empty DomainID")
}
if len(t.WorkflowID) == 0 {
return errors.New("empty WorkflowID")
}
if len(t.RunID) == 0 {
return errors.New("empty RunID")
}
return nil
}
func (t *Timer) Clone() Entity {
return &Timer{}
}
func (t *Timer) GetShardID() int {
return t.ShardID
}
func (t *Timer) GetDomainID() string {
return t.DomainID
}
// ValidateExecution returns an error if Execution is not valid, nil otherwise.
func validateExecution(execution *Execution) error {
if execution.ShardID < 0 {
return fmt.Errorf("invalid ShardID: %v", execution.ShardID)
}
if len(execution.DomainID) == 0 {
return errors.New("empty DomainID")
}
if len(execution.WorkflowID) == 0 {
return errors.New("empty WorkflowID")
}
if len(execution.RunID) == 0 {
return errors.New("empty RunID")
}
if execution.State < persistence.WorkflowStateCreated || execution.State > persistence.WorkflowStateCorrupted {
return fmt.Errorf("unknown workflow state: %v", execution.State)
}
return nil
}
// Validate returns an error if ConcreteExecution is not valid, nil otherwise.
func (ce *ConcreteExecution) Validate() error {
err := validateExecution(&ce.Execution)
if err != nil {
return err
}
if len(ce.BranchToken) == 0 {
return errors.New("empty BranchToken")
}
if len(ce.TreeID) == 0 {
return errors.New("empty TreeID")
}
if len(ce.BranchID) == 0 {
return errors.New("empty BranchID")
}
return nil
}
// Validate returns an error if CurrentExecution is not valid, nil otherwise.
func (curre *CurrentExecution) Validate() error {
err := validateExecution(&curre.Execution)
if err != nil {
return err
}
if len(curre.CurrentRunID) == 0 {
return errors.New("empty CurrentRunID")
}
return nil
}
// Clone will return a new copy of ConcreteExecution
func (ConcreteExecution) Clone() Entity {
return &ConcreteExecution{}
}
// Clone will return a new copy of CurrentExecution
func (CurrentExecution) Clone() Entity {
return &CurrentExecution{}
}
// GetShardID returns shard id
func (ce *ConcreteExecution) GetShardID() int {
return ce.Execution.ShardID
}
// GetShardID returns shard id
func (curre *CurrentExecution) GetShardID() int {
return curre.Execution.ShardID
}
// GetDomainID returns the domain id
func (ce *ConcreteExecution) GetDomainID() string {
return ce.DomainID
}
// GetDomainID returns the domain id
func (curre *CurrentExecution) GetDomainID() string {
return curre.DomainID
}
// Entity allows to deserialize and validate different type of executions
type Entity interface {
Validate() error
Clone() Entity
GetShardID() int
GetDomainID() string
}