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107 lines
4.4 KiB
Go
107 lines
4.4 KiB
Go
// The MIT License
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//
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// Copyright (c) 2020 Temporal Technologies Inc. All rights reserved.
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//
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// Copyright (c) 2020 Uber Technologies, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package internal
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// WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! WARNING!
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// Any of the APIs in this file are not supported for application level developers
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// and are subject to change without any notice.
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//
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// APIs that are internal to Temporal system developers and are public from the Go
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// point of view only to access them from other packages.
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import (
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"time"
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historypb "go.temporal.io/api/history/v1"
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"go.temporal.io/api/workflowservice/v1"
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)
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type (
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workflowTaskHeartbeatFunc func(response interface{}, startTime time.Time) (*workflowTask, error)
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// HistoryIterator iterator through history events
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HistoryIterator interface {
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// GetNextPage returns next page of history events
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GetNextPage() (*historypb.History, error)
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// Reset resets the internal state so next GetNextPage() call will return first page of events from beginning.
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Reset()
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// HasNextPage returns if there are more page of events
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HasNextPage() bool
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}
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// WorkflowExecutionContext represents one instance of workflow execution state in memory. Lock must be obtained before
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// calling into any methods.
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WorkflowExecutionContext interface {
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Lock()
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Unlock(err error)
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ProcessWorkflowTask(workflowTask *workflowTask) (completeRequest interface{}, err error)
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ProcessLocalActivityResult(workflowTask *workflowTask, lar *localActivityResult) (interface{}, error)
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// CompleteWorkflowTask try to complete current workflow task and get response that needs to be sent back to server.
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// The waitLocalActivity is used to control if we should wait for outstanding local activities.
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// If there is no outstanding local activities or if waitLocalActivity is false, the complete will return response
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// which will be one of following:
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// - RespondWorkflowTaskCompletedRequest
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// - RespondWorkflowTaskFailedRequest
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// - RespondQueryTaskCompletedRequest
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// If waitLocalActivity is true, and there is outstanding local activities, this call will return nil.
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CompleteWorkflowTask(workflowTask *workflowTask, waitLocalActivity bool) interface{}
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// GetWorkflowTaskTimeout returns the WorkflowTaskTimeout
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GetWorkflowTaskTimeout() time.Duration
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GetCurrentWorkflowTask() *workflowservice.PollWorkflowTaskQueueResponse
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IsDestroyed() bool
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StackTrace() string
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}
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// WorkflowTaskHandler represents workflow task handlers.
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WorkflowTaskHandler interface {
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// Processes the workflow task
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// The response could be:
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// - RespondWorkflowTaskCompletedRequest
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// - RespondWorkflowTaskFailedRequest
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// - RespondQueryTaskCompletedRequest
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ProcessWorkflowTask(
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task *workflowTask,
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f workflowTaskHeartbeatFunc,
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) (response interface{}, err error)
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}
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// ActivityTaskHandler represents activity task handlers.
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ActivityTaskHandler interface {
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// Executes the activity task
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// The response is one of the types:
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// - RespondActivityTaskCompletedRequest
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// - RespondActivityTaskFailedRequest
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// - RespondActivityTaskCanceledRequest
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Execute(taskQueue string, task *workflowservice.PollActivityTaskQueueResponse) (interface{}, error)
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}
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)
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var enableVerboseLogging = false
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// EnableVerboseLogging enable or disable verbose logging. This is for internal use only.
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func EnableVerboseLogging(enable bool) {
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enableVerboseLogging = enable
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}
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