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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 signalwithstartworkflow
import (
"context"
"go.temporal.io/api/serviceerror"
"go.temporal.io/server/api/historyservice/v1"
"go.temporal.io/server/common/definition"
"go.temporal.io/server/common/metrics"
"go.temporal.io/server/common/namespace"
"go.temporal.io/server/service/history/api"
"go.temporal.io/server/service/history/shard"
"go.temporal.io/server/service/history/workflow"
)
func Invoke(
ctx context.Context,
signalWithStartRequest *historyservice.SignalWithStartWorkflowExecutionRequest,
shard shard.Context,
workflowConsistencyChecker api.WorkflowConsistencyChecker,
) (_ *historyservice.SignalWithStartWorkflowExecutionResponse, retError error) {
namespaceEntry, err := api.GetActiveNamespace(shard, namespace.ID(signalWithStartRequest.GetNamespaceId()))
if err != nil {
return nil, err
}
namespaceID := namespaceEntry.ID()
var currentWorkflowContext api.WorkflowContext
currentWorkflowContext, err = workflowConsistencyChecker.GetWorkflowContext(
ctx,
nil,
api.BypassMutableStateConsistencyPredicate,
definition.NewWorkflowKey(
string(namespaceID),
signalWithStartRequest.SignalWithStartRequest.WorkflowId,
"",
),
workflow.LockPriorityHigh,
)
switch err.(type) {
case nil:
defer func() { currentWorkflowContext.GetReleaseFn()(retError) }()
case *serviceerror.NotFound:
currentWorkflowContext = nil
default:
return nil, err
}
// Start workflow and signal
startRequest := ConvertToStartRequest(
namespaceID,
signalWithStartRequest.SignalWithStartRequest,
shard.GetTimeSource().Now(),
)
request := startRequest.StartRequest
api.OverrideStartWorkflowExecutionRequest(request, metrics.HistorySignalWithStartWorkflowExecutionScope, shard, shard.GetMetricsHandler())
err = api.ValidateStartWorkflowExecutionRequest(ctx, request, shard, namespaceEntry, "SignalWithStartWorkflowExecution")
if err != nil {
return nil, err
}
runID, err := SignalWithStartWorkflow(
ctx,
shard,
namespaceEntry,
currentWorkflowContext,
startRequest,
signalWithStartRequest.SignalWithStartRequest,
)
if err != nil {
return nil, err
}
return &historyservice.SignalWithStartWorkflowExecutionResponse{
RunId: runID,
}, nil
}