/
internal_public.go
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/
internal_public.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 internal
// WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! WARNING!
// Any of the APIs in this file are not supported for application level developers
// and are subject to change without any notice.
//
// APIs that are internal to Temporal system developers and are public from the Go
// point of view only to access them from other packages.
import (
"time"
historypb "go.temporal.io/api/history/v1"
"go.temporal.io/api/workflowservice/v1"
)
type (
workflowTaskHeartbeatFunc func(response interface{}, startTime time.Time) (*workflowTask, error)
// HistoryIterator iterator through history events
HistoryIterator interface {
// GetNextPage returns next page of history events
GetNextPage() (*historypb.History, error)
// Reset resets the internal state so next GetNextPage() call will return first page of events from beginning.
Reset()
// HasNextPage returns if there are more page of events
HasNextPage() bool
}
// WorkflowExecutionContext represents one instance of workflow execution state in memory. Lock must be obtained before
// calling into any methods.
WorkflowExecutionContext interface {
Lock()
Unlock(err error)
ProcessWorkflowTask(workflowTask *workflowTask) (completeRequest interface{}, err error)
ProcessLocalActivityResult(workflowTask *workflowTask, lar *localActivityResult) (interface{}, error)
// CompleteWorkflowTask try to complete current workflow task and get response that needs to be sent back to server.
// The waitLocalActivity is used to control if we should wait for outstanding local activities.
// If there is no outstanding local activities or if waitLocalActivity is false, the complete will return response
// which will be one of following:
// - RespondWorkflowTaskCompletedRequest
// - RespondWorkflowTaskFailedRequest
// - RespondQueryTaskCompletedRequest
// If waitLocalActivity is true, and there is outstanding local activities, this call will return nil.
CompleteWorkflowTask(workflowTask *workflowTask, waitLocalActivity bool) interface{}
// GetWorkflowTaskTimeout returns the WorkflowTaskTimeout
GetWorkflowTaskTimeout() time.Duration
GetCurrentWorkflowTask() *workflowservice.PollWorkflowTaskQueueResponse
IsDestroyed() bool
StackTrace() string
}
EventLevelResetter func(int64)
// WorkflowTaskHandler represents workflow task handlers.
WorkflowTaskHandler interface {
// Processes the workflow task
// The response could be:
// - RespondWorkflowTaskCompletedRequest
// - RespondWorkflowTaskFailedRequest
// - RespondQueryTaskCompletedRequest
ProcessWorkflowTask(
task *workflowTask,
f workflowTaskHeartbeatFunc,
) (response interface{}, resetter EventLevelResetter, err error)
}
// ActivityTaskHandler represents activity task handlers.
ActivityTaskHandler interface {
// Executes the activity task
// The response is one of the types:
// - RespondActivityTaskCompletedRequest
// - RespondActivityTaskFailedRequest
// - RespondActivityTaskCanceledRequest
Execute(taskQueue string, task *workflowservice.PollActivityTaskQueueResponse) (interface{}, error)
}
)
var enableVerboseLogging = false
// EnableVerboseLogging enable or disable verbose logging. This is for internal use only.
func EnableVerboseLogging(enable bool) {
enableVerboseLogging = enable
}