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api.go
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api.go
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// 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 deleteworkflow
import (
"context"
commonpb "go.temporal.io/api/common/v1"
"go.temporal.io/server/api/historyservice/v1"
"go.temporal.io/server/common/definition"
"go.temporal.io/server/common/namespace"
"go.temporal.io/server/service/history/api"
"go.temporal.io/server/service/history/consts"
"go.temporal.io/server/service/history/deletemanager"
"go.temporal.io/server/service/history/shard"
"go.temporal.io/server/service/history/workflow"
)
func Invoke(
ctx context.Context,
request *historyservice.DeleteWorkflowExecutionRequest,
shard shard.Context,
workflowConsistencyChecker api.WorkflowConsistencyChecker,
workflowDeleteManager deletemanager.DeleteManager,
) (_ *historyservice.DeleteWorkflowExecutionResponse, retError error) {
weCtx, err := workflowConsistencyChecker.GetWorkflowContext(
ctx,
nil,
api.BypassMutableStateConsistencyPredicate,
definition.NewWorkflowKey(
request.NamespaceId,
request.WorkflowExecution.WorkflowId,
request.WorkflowExecution.RunId,
),
workflow.LockPriorityLow,
)
if err != nil {
return nil, err
}
defer func() { weCtx.GetReleaseFn()(retError) }()
// Open and Close workflow executions are deleted differently.
// Open workflow execution is deleted by terminating with special flag `deleteAfterTerminate` set to true.
// This flag will be carried over with CloseExecutionTask and workflow will be deleted as the last step while processing the task.
//
// Close workflow execution is deleted using DeleteExecutionTask.
//
// DeleteWorkflowExecution is not replicated automatically. Workflow executions must be deleted separately in each cluster.
// Although running workflows in active cluster are terminated first and the termination event might be replicated.
// In passive cluster, workflow executions are just deleted in regardless of its state.
if weCtx.GetMutableState().IsWorkflowExecutionRunning() {
if request.GetClosedWorkflowOnly() {
// skip delete open workflow
return &historyservice.DeleteWorkflowExecutionResponse{}, nil
}
ns, err := shard.GetNamespaceRegistry().GetNamespaceByID(namespace.ID(request.GetNamespaceId()))
if err != nil {
return nil, err
}
if ns.ActiveInCluster(shard.GetClusterMetadata().GetCurrentClusterName()) {
// If workflow execution is running and in active cluster.
if err := api.UpdateWorkflowWithNew(
shard,
ctx,
weCtx,
func(workflowContext api.WorkflowContext) (*api.UpdateWorkflowAction, error) {
mutableState := workflowContext.GetMutableState()
eventBatchFirstEventID := mutableState.GetNextEventID()
return api.UpdateWorkflowWithoutWorkflowTask, workflow.TerminateWorkflow(
mutableState,
eventBatchFirstEventID,
"Delete workflow execution",
nil,
consts.IdentityHistoryService,
true,
)
},
nil,
); err != nil {
return nil, err
}
return &historyservice.DeleteWorkflowExecutionResponse{}, nil
}
}
// If workflow execution is closed or in passive cluster.
if err := workflowDeleteManager.AddDeleteWorkflowExecutionTask(
ctx,
namespace.ID(request.GetNamespaceId()),
commonpb.WorkflowExecution{
WorkflowId: request.GetWorkflowExecution().GetWorkflowId(),
RunId: request.GetWorkflowExecution().GetRunId(),
},
weCtx.GetMutableState(),
request.GetWorkflowVersion(),
); err != nil {
return nil, err
}
return &historyservice.DeleteWorkflowExecutionResponse{}, nil
}