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Move history API logic into its own package (#2778)
* Move workflow creation logic util into api package * Simplify history engine impl
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,128 @@ | ||
| // The MIT License | ||
| // | ||
| // Copyright (c) 2020 Temporal Technologies Inc. All rights reserved. | ||
| // | ||
| // Copyright (c) 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 api | ||
|
|
||
| import ( | ||
| commonpb "go.temporal.io/api/common/v1" | ||
| historypb "go.temporal.io/api/history/v1" | ||
| "go.temporal.io/api/workflowservice/v1" | ||
|
|
||
| "go.temporal.io/server/api/historyservice/v1" | ||
| workflowspb "go.temporal.io/server/api/workflow/v1" | ||
| "go.temporal.io/server/common/definition" | ||
| "go.temporal.io/server/common/namespace" | ||
| "go.temporal.io/server/service/history/shard" | ||
| "go.temporal.io/server/service/history/workflow" | ||
| ) | ||
|
|
||
| func NewWorkflowWithSignal( | ||
| shard shard.Context, | ||
| namespaceEntry *namespace.Namespace, | ||
| execution commonpb.WorkflowExecution, | ||
| startRequest *historyservice.StartWorkflowExecutionRequest, | ||
| signalWithStartRequest *workflowservice.SignalWithStartWorkflowExecutionRequest, | ||
| ) (workflow.Context, workflow.MutableState, error) { | ||
| newMutableState, err := CreateMutableState(shard, namespaceEntry, execution.GetRunId()) | ||
| if err != nil { | ||
| return nil, nil, err | ||
| } | ||
|
|
||
| startEvent, err := newMutableState.AddWorkflowExecutionStartedEvent( | ||
| execution, | ||
| startRequest, | ||
| ) | ||
| if err != nil { | ||
| return nil, nil, err | ||
| } | ||
|
|
||
| if signalWithStartRequest != nil { | ||
| if signalWithStartRequest.GetRequestId() != "" { | ||
| newMutableState.AddSignalRequested(signalWithStartRequest.GetRequestId()) | ||
| } | ||
| if _, err := newMutableState.AddWorkflowExecutionSignaled( | ||
| signalWithStartRequest.GetSignalName(), | ||
| signalWithStartRequest.GetSignalInput(), | ||
| signalWithStartRequest.GetIdentity(), | ||
| signalWithStartRequest.GetHeader(), | ||
| ); err != nil { | ||
| return nil, nil, err | ||
| } | ||
| } | ||
|
|
||
| // Generate first workflow task event if not child WF and no first workflow task backoff | ||
| if err := GenerateFirstWorkflowTask( | ||
| newMutableState, | ||
| startRequest.ParentExecutionInfo, | ||
| startEvent, | ||
| ); err != nil { | ||
| return nil, nil, err | ||
| } | ||
|
|
||
| newWorkflowContext := workflow.NewContext( | ||
| shard, | ||
| definition.NewWorkflowKey( | ||
| namespaceEntry.ID().String(), | ||
| execution.GetWorkflowId(), | ||
| execution.GetRunId(), | ||
| ), | ||
| shard.GetLogger(), | ||
| ) | ||
| return newWorkflowContext, newMutableState, nil | ||
| } | ||
|
|
||
| func CreateMutableState( | ||
| shard shard.Context, | ||
| namespaceEntry *namespace.Namespace, | ||
| runID string, | ||
| ) (workflow.MutableState, error) { | ||
| newMutableState := workflow.NewMutableState( | ||
| shard, | ||
| shard.GetEventsCache(), | ||
| shard.GetLogger(), | ||
| namespaceEntry, | ||
| shard.GetTimeSource().Now(), | ||
| ) | ||
| if err := newMutableState.SetHistoryTree(runID); err != nil { | ||
| return nil, err | ||
| } | ||
| return newMutableState, nil | ||
| } | ||
|
|
||
| func GenerateFirstWorkflowTask( | ||
| mutableState workflow.MutableState, | ||
| parentInfo *workflowspb.ParentExecutionInfo, | ||
| startEvent *historypb.HistoryEvent, | ||
| ) error { | ||
|
|
||
| if parentInfo == nil { | ||
| // WorkflowTask is only created when it is not a Child Workflow and no backoff is needed | ||
| if err := mutableState.AddFirstWorkflowTaskScheduled( | ||
| startEvent, | ||
| ); err != nil { | ||
| return err | ||
| } | ||
| } | ||
| return nil | ||
| } |
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