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StateMachines.java
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/*
* Copyright 2012-2016 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* Modifications copyright (C) 2017 Uber Technologies, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License"). You may not
* use this file except in compliance with the License. A copy of the License is
* located at
*
* http://aws.amazon.com/apache2.0
*
* or in the "license" file accompanying this file. This file is distributed on
* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the License for the specific language governing
* permissions and limitations under the License.
*/
package com.uber.cadence.internal.testservice;
import static com.uber.cadence.internal.testservice.StateMachines.Action.CANCEL;
import static com.uber.cadence.internal.testservice.StateMachines.Action.COMPLETE;
import static com.uber.cadence.internal.testservice.StateMachines.Action.CONTINUE_AS_NEW;
import static com.uber.cadence.internal.testservice.StateMachines.Action.FAIL;
import static com.uber.cadence.internal.testservice.StateMachines.Action.INITIATE;
import static com.uber.cadence.internal.testservice.StateMachines.Action.REQUEST_CANCELLATION;
import static com.uber.cadence.internal.testservice.StateMachines.Action.START;
import static com.uber.cadence.internal.testservice.StateMachines.Action.TIME_OUT;
import static com.uber.cadence.internal.testservice.StateMachines.Action.UPDATE;
import static com.uber.cadence.internal.testservice.StateMachines.State.CANCELED;
import static com.uber.cadence.internal.testservice.StateMachines.State.CANCELLATION_REQUESTED;
import static com.uber.cadence.internal.testservice.StateMachines.State.COMPLETED;
import static com.uber.cadence.internal.testservice.StateMachines.State.CONTINUED_AS_NEW;
import static com.uber.cadence.internal.testservice.StateMachines.State.FAILED;
import static com.uber.cadence.internal.testservice.StateMachines.State.INITIATED;
import static com.uber.cadence.internal.testservice.StateMachines.State.NONE;
import static com.uber.cadence.internal.testservice.StateMachines.State.STARTED;
import static com.uber.cadence.internal.testservice.StateMachines.State.TIMED_OUT;
import com.uber.cadence.ActivityTaskCancelRequestedEventAttributes;
import com.uber.cadence.ActivityTaskCanceledEventAttributes;
import com.uber.cadence.ActivityTaskCompletedEventAttributes;
import com.uber.cadence.ActivityTaskFailedEventAttributes;
import com.uber.cadence.ActivityTaskScheduledEventAttributes;
import com.uber.cadence.ActivityTaskStartedEventAttributes;
import com.uber.cadence.ActivityTaskTimedOutEventAttributes;
import com.uber.cadence.BadRequestError;
import com.uber.cadence.CancelTimerDecisionAttributes;
import com.uber.cadence.CancelWorkflowExecutionDecisionAttributes;
import com.uber.cadence.ChildWorkflowExecutionCanceledEventAttributes;
import com.uber.cadence.ChildWorkflowExecutionCompletedEventAttributes;
import com.uber.cadence.ChildWorkflowExecutionFailedCause;
import com.uber.cadence.ChildWorkflowExecutionFailedEventAttributes;
import com.uber.cadence.ChildWorkflowExecutionStartedEventAttributes;
import com.uber.cadence.ChildWorkflowExecutionTimedOutEventAttributes;
import com.uber.cadence.CompleteWorkflowExecutionDecisionAttributes;
import com.uber.cadence.ContinueAsNewWorkflowExecutionDecisionAttributes;
import com.uber.cadence.DecisionTaskCompletedEventAttributes;
import com.uber.cadence.DecisionTaskFailedEventAttributes;
import com.uber.cadence.DecisionTaskScheduledEventAttributes;
import com.uber.cadence.DecisionTaskStartedEventAttributes;
import com.uber.cadence.DecisionTaskTimedOutEventAttributes;
import com.uber.cadence.EntityNotExistsError;
import com.uber.cadence.EventType;
import com.uber.cadence.ExternalWorkflowExecutionSignaledEventAttributes;
import com.uber.cadence.FailWorkflowExecutionDecisionAttributes;
import com.uber.cadence.GetWorkflowExecutionHistoryRequest;
import com.uber.cadence.History;
import com.uber.cadence.HistoryEvent;
import com.uber.cadence.InternalServiceError;
import com.uber.cadence.PollForActivityTaskRequest;
import com.uber.cadence.PollForActivityTaskResponse;
import com.uber.cadence.PollForDecisionTaskRequest;
import com.uber.cadence.PollForDecisionTaskResponse;
import com.uber.cadence.RequestCancelActivityTaskDecisionAttributes;
import com.uber.cadence.RequestCancelWorkflowExecutionRequest;
import com.uber.cadence.RespondActivityTaskCanceledByIDRequest;
import com.uber.cadence.RespondActivityTaskCanceledRequest;
import com.uber.cadence.RespondActivityTaskCompletedByIDRequest;
import com.uber.cadence.RespondActivityTaskCompletedRequest;
import com.uber.cadence.RespondActivityTaskFailedByIDRequest;
import com.uber.cadence.RespondActivityTaskFailedRequest;
import com.uber.cadence.RespondDecisionTaskCompletedRequest;
import com.uber.cadence.RespondDecisionTaskFailedRequest;
import com.uber.cadence.RetryPolicy;
import com.uber.cadence.ScheduleActivityTaskDecisionAttributes;
import com.uber.cadence.SignalExternalWorkflowExecutionDecisionAttributes;
import com.uber.cadence.SignalExternalWorkflowExecutionFailedCause;
import com.uber.cadence.SignalExternalWorkflowExecutionFailedEventAttributes;
import com.uber.cadence.SignalExternalWorkflowExecutionInitiatedEventAttributes;
import com.uber.cadence.StartChildWorkflowExecutionDecisionAttributes;
import com.uber.cadence.StartChildWorkflowExecutionFailedEventAttributes;
import com.uber.cadence.StartChildWorkflowExecutionInitiatedEventAttributes;
import com.uber.cadence.StartTimerDecisionAttributes;
import com.uber.cadence.StartWorkflowExecutionRequest;
import com.uber.cadence.TimeoutType;
import com.uber.cadence.TimerCanceledEventAttributes;
import com.uber.cadence.TimerFiredEventAttributes;
import com.uber.cadence.TimerStartedEventAttributes;
import com.uber.cadence.WorkflowExecution;
import com.uber.cadence.WorkflowExecutionAlreadyStartedError;
import com.uber.cadence.WorkflowExecutionCancelRequestedEventAttributes;
import com.uber.cadence.WorkflowExecutionCanceledEventAttributes;
import com.uber.cadence.WorkflowExecutionCompletedEventAttributes;
import com.uber.cadence.WorkflowExecutionContinuedAsNewEventAttributes;
import com.uber.cadence.WorkflowExecutionFailedEventAttributes;
import com.uber.cadence.WorkflowExecutionStartedEventAttributes;
import com.uber.cadence.WorkflowExecutionTimedOutEventAttributes;
import com.uber.cadence.internal.testservice.TestWorkflowStore.ActivityTask;
import com.uber.cadence.internal.testservice.TestWorkflowStore.DecisionTask;
import com.uber.cadence.internal.testservice.TestWorkflowStore.TaskListId;
import java.util.List;
import java.util.Optional;
import java.util.OptionalLong;
import java.util.concurrent.ForkJoinPool;
import java.util.concurrent.TimeUnit;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
class StateMachines {
private static final Logger log = LoggerFactory.getLogger(StateMachines.class);
private static final int NO_EVENT_ID = -1;
private static final String TIMEOUT_ERROR_REASON = "cadenceInternal:Timeout";
enum State {
NONE,
INITIATED,
STARTED,
FAILED,
TIMED_OUT,
CANCELLATION_REQUESTED,
CANCELED,
COMPLETED,
CONTINUED_AS_NEW,
}
enum Action {
INITIATE,
START,
FAIL,
TIME_OUT,
REQUEST_CANCELLATION,
CANCEL,
UPDATE,
COMPLETE,
CONTINUE_AS_NEW
}
static final class WorkflowData {
Optional<RetryState> retryState = Optional.empty();
int backoffStartIntervalInSeconds;
String cronSchedule;
byte[] lastCompletionResult;
WorkflowData(
Optional<RetryState> retryState,
int backoffStartIntervalInSeconds,
String cronSchedule,
byte[] lastCompletionResult) {
this.retryState = retryState;
this.backoffStartIntervalInSeconds = backoffStartIntervalInSeconds;
this.cronSchedule = cronSchedule;
this.lastCompletionResult = lastCompletionResult;
}
}
static final class DecisionTaskData {
final long previousStartedEventId;
final TestWorkflowStore store;
long startedEventId = NO_EVENT_ID;
PollForDecisionTaskResponse decisionTask;
long scheduledEventId = NO_EVENT_ID;
int attempt;
DecisionTaskData(long previousStartedEventId, TestWorkflowStore store) {
this.previousStartedEventId = previousStartedEventId;
this.store = store;
}
}
static final class ActivityTaskData {
StartWorkflowExecutionRequest startWorkflowExecutionRequest;
ActivityTaskScheduledEventAttributes scheduledEvent;
ActivityTask activityTask;
final TestWorkflowStore store;
long scheduledEventId = NO_EVENT_ID;
long startedEventId = NO_EVENT_ID;
public HistoryEvent startedEvent;
byte[] heartbeatDetails;
long lastHeartbeatTime;
RetryState retryState;
long nextBackoffIntervalSeconds;
ActivityTaskData(
TestWorkflowStore store, StartWorkflowExecutionRequest startWorkflowExecutionRequest) {
this.store = store;
this.startWorkflowExecutionRequest = startWorkflowExecutionRequest;
}
}
static final class SignalExternalData {
long initiatedEventId = NO_EVENT_ID;
public SignalExternalWorkflowExecutionInitiatedEventAttributes initiatedEvent;
}
static final class ChildWorkflowData {
final TestWorkflowService service;
StartChildWorkflowExecutionInitiatedEventAttributes initiatedEvent;
long initiatedEventId;
long startedEventId;
WorkflowExecution execution;
public ChildWorkflowData(TestWorkflowService service) {
this.service = service;
}
}
static final class TimerData {
TimerStartedEventAttributes startedEvent;
public long startedEventId;
}
static StateMachine<WorkflowData> newWorkflowStateMachine(WorkflowData data) {
return new StateMachine<>(data)
.add(NONE, START, STARTED, StateMachines::startWorkflow)
.add(STARTED, COMPLETE, COMPLETED, StateMachines::completeWorkflow)
.add(STARTED, CONTINUE_AS_NEW, CONTINUED_AS_NEW, StateMachines::continueAsNewWorkflow)
.add(STARTED, FAIL, FAILED, StateMachines::failWorkflow)
.add(STARTED, TIME_OUT, TIMED_OUT, StateMachines::timeoutWorkflow)
.add(
STARTED,
REQUEST_CANCELLATION,
CANCELLATION_REQUESTED,
StateMachines::requestWorkflowCancellation)
.add(CANCELLATION_REQUESTED, COMPLETE, COMPLETED, StateMachines::completeWorkflow)
.add(CANCELLATION_REQUESTED, CANCEL, CANCELED, StateMachines::cancelWorkflow)
.add(CANCELLATION_REQUESTED, FAIL, FAILED, StateMachines::failWorkflow)
.add(CANCELLATION_REQUESTED, TIME_OUT, TIMED_OUT, StateMachines::timeoutWorkflow);
}
static StateMachine<DecisionTaskData> newDecisionStateMachine(
long previousStartedEventId, TestWorkflowStore store) {
return new StateMachine<>(new DecisionTaskData(previousStartedEventId, store))
.add(NONE, INITIATE, INITIATED, StateMachines::scheduleDecisionTask)
.add(INITIATED, START, STARTED, StateMachines::startDecisionTask)
.add(STARTED, COMPLETE, COMPLETED, StateMachines::completeDecisionTask)
.add(STARTED, FAIL, FAILED, StateMachines::failDecisionTask)
.add(STARTED, TIME_OUT, TIMED_OUT, StateMachines::timeoutDecisionTask)
.add(TIMED_OUT, INITIATE, INITIATED, StateMachines::scheduleDecisionTask)
.add(FAILED, INITIATE, INITIATED, StateMachines::scheduleDecisionTask);
}
public static StateMachine<ActivityTaskData> newActivityStateMachine(
TestWorkflowStore store, StartWorkflowExecutionRequest workflowStartedEvent) {
return new StateMachine<>(new ActivityTaskData(store, workflowStartedEvent))
.add(NONE, INITIATE, INITIATED, StateMachines::scheduleActivityTask)
.add(INITIATED, START, STARTED, StateMachines::startActivityTask)
.add(INITIATED, TIME_OUT, TIMED_OUT, StateMachines::timeoutActivityTask)
.add(
INITIATED,
REQUEST_CANCELLATION,
CANCELLATION_REQUESTED,
StateMachines::requestActivityCancellation)
.add(STARTED, COMPLETE, COMPLETED, StateMachines::completeActivityTask)
// Transitions to initiated in case of the a retry
.add(STARTED, FAIL, new State[] {FAILED, INITIATED}, StateMachines::failActivityTask)
// Transitions to initiated in case of a retry
.add(
STARTED,
TIME_OUT,
new State[] {TIMED_OUT, INITIATED},
StateMachines::timeoutActivityTask)
.add(STARTED, UPDATE, STARTED, StateMachines::heartbeatActivityTask)
.add(
STARTED,
REQUEST_CANCELLATION,
CANCELLATION_REQUESTED,
StateMachines::requestActivityCancellation)
.add(
CANCELLATION_REQUESTED, CANCEL, CANCELED, StateMachines::reportActivityTaskCancellation)
.add(CANCELLATION_REQUESTED, COMPLETE, COMPLETED, StateMachines::completeActivityTask)
.add(
CANCELLATION_REQUESTED,
UPDATE,
CANCELLATION_REQUESTED,
StateMachines::heartbeatActivityTask)
.add(CANCELLATION_REQUESTED, TIME_OUT, TIMED_OUT, StateMachines::timeoutActivityTask)
.add(CANCELLATION_REQUESTED, FAIL, FAILED, StateMachines::failActivityTask);
}
public static StateMachine<ChildWorkflowData> newChildWorkflowStateMachine(
TestWorkflowService service) {
return new StateMachine<>(new ChildWorkflowData(service))
.add(NONE, INITIATE, INITIATED, StateMachines::initiateChildWorkflow)
.add(INITIATED, START, STARTED, StateMachines::childWorkflowStarted)
.add(INITIATED, FAIL, FAILED, StateMachines::startChildWorkflowFailed)
.add(INITIATED, TIME_OUT, TIMED_OUT, StateMachines::timeoutChildWorkflow)
.add(STARTED, COMPLETE, COMPLETED, StateMachines::childWorkflowCompleted)
.add(STARTED, FAIL, FAILED, StateMachines::childWorkflowFailed)
.add(STARTED, TIME_OUT, TIMED_OUT, StateMachines::timeoutChildWorkflow)
.add(STARTED, CANCEL, CANCELED, StateMachines::childWorkflowCanceled);
}
public static StateMachine<TimerData> newTimerStateMachine() {
return new StateMachine<>(new TimerData())
.add(NONE, START, STARTED, StateMachines::startTimer)
.add(STARTED, COMPLETE, COMPLETED, StateMachines::fireTimer)
.add(STARTED, CANCEL, CANCELED, StateMachines::cancelTimer);
}
public static StateMachine<SignalExternalData> newSignalExternalStateMachine() {
return new StateMachine<>(new SignalExternalData())
.add(NONE, INITIATE, INITIATED, StateMachines::initiateExternalSignal)
.add(INITIATED, FAIL, FAILED, StateMachines::failExternalSignal)
.add(INITIATED, COMPLETE, COMPLETED, StateMachines::completeExternalSignal);
}
private static void timeoutChildWorkflow(
RequestContext ctx, ChildWorkflowData data, TimeoutType timeoutType, long notUsed) {
StartChildWorkflowExecutionInitiatedEventAttributes ie = data.initiatedEvent;
ChildWorkflowExecutionTimedOutEventAttributes a =
new ChildWorkflowExecutionTimedOutEventAttributes()
.setDomain(ie.getDomain())
.setStartedEventId(data.startedEventId)
.setWorkflowExecution(data.execution)
.setWorkflowType(ie.getWorkflowType())
.setTimeoutType(timeoutType)
.setInitiatedEventId(data.initiatedEventId);
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.ChildWorkflowExecutionTimedOut)
.setChildWorkflowExecutionTimedOutEventAttributes(a);
ctx.addEvent(event);
}
private static void startChildWorkflowFailed(
RequestContext ctx,
ChildWorkflowData data,
StartChildWorkflowExecutionFailedEventAttributes a,
long notUsed) {
a.setInitiatedEventId(data.initiatedEventId);
a.setWorkflowType(data.initiatedEvent.getWorkflowType());
a.setWorkflowId(data.initiatedEvent.getWorkflowId());
if (data.initiatedEvent.isSetDomain()) {
a.setDomain(data.initiatedEvent.getDomain());
}
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.StartChildWorkflowExecutionFailed)
.setStartChildWorkflowExecutionFailedEventAttributes(a);
ctx.addEvent(event);
}
private static void childWorkflowStarted(
RequestContext ctx,
ChildWorkflowData data,
ChildWorkflowExecutionStartedEventAttributes a,
long notUsed) {
a.setInitiatedEventId(data.initiatedEventId);
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.ChildWorkflowExecutionStarted)
.setChildWorkflowExecutionStartedEventAttributes(a);
long startedEventId = ctx.addEvent(event);
ctx.onCommit(
(historySize) -> {
data.startedEventId = startedEventId;
data.execution = a.getWorkflowExecution();
});
}
private static void childWorkflowCompleted(
RequestContext ctx,
ChildWorkflowData data,
ChildWorkflowExecutionCompletedEventAttributes a,
long notUsed) {
a.setInitiatedEventId(data.initiatedEventId).setStartedEventId(data.startedEventId);
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.ChildWorkflowExecutionCompleted)
.setChildWorkflowExecutionCompletedEventAttributes(a);
ctx.addEvent(event);
}
private static void childWorkflowFailed(
RequestContext ctx,
ChildWorkflowData data,
ChildWorkflowExecutionFailedEventAttributes a,
long notUsed) {
a.setInitiatedEventId(data.initiatedEventId);
a.setStartedEventId(data.startedEventId);
a.setWorkflowExecution(data.execution);
a.setWorkflowType(data.initiatedEvent.getWorkflowType());
if (data.initiatedEvent.domain != null) {
a.setDomain(data.initiatedEvent.domain);
}
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.ChildWorkflowExecutionFailed)
.setChildWorkflowExecutionFailedEventAttributes(a);
ctx.addEvent(event);
}
private static void childWorkflowCanceled(
RequestContext ctx,
ChildWorkflowData data,
ChildWorkflowExecutionCanceledEventAttributes a,
long notUsed) {
a.setInitiatedEventId(data.initiatedEventId);
a.setStartedEventId(data.startedEventId);
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.ChildWorkflowExecutionCanceled)
.setChildWorkflowExecutionCanceledEventAttributes(a);
ctx.addEvent(event);
}
private static void initiateChildWorkflow(
RequestContext ctx,
ChildWorkflowData data,
StartChildWorkflowExecutionDecisionAttributes d,
long decisionTaskCompletedEventId) {
StartChildWorkflowExecutionInitiatedEventAttributes a =
new StartChildWorkflowExecutionInitiatedEventAttributes()
.setControl(d.getControl())
.setInput(d.getInput())
.setChildPolicy(d.getChildPolicy())
.setDecisionTaskCompletedEventId(decisionTaskCompletedEventId)
.setDomain(d.getDomain() == null ? ctx.getDomain() : d.getDomain())
.setExecutionStartToCloseTimeoutSeconds(d.getExecutionStartToCloseTimeoutSeconds())
.setTaskStartToCloseTimeoutSeconds(d.getTaskStartToCloseTimeoutSeconds())
.setTaskList(d.getTaskList())
.setWorkflowId(d.getWorkflowId())
.setWorkflowIdReusePolicy(d.getWorkflowIdReusePolicy())
.setWorkflowType(d.getWorkflowType())
.setRetryPolicy(d.getRetryPolicy())
.setCronSchedule(d.getCronSchedule());
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.StartChildWorkflowExecutionInitiated)
.setStartChildWorkflowExecutionInitiatedEventAttributes(a);
long initiatedEventId = ctx.addEvent(event);
ctx.onCommit(
(historySize) -> {
data.initiatedEventId = initiatedEventId;
data.initiatedEvent = a;
StartWorkflowExecutionRequest startChild =
new StartWorkflowExecutionRequest()
.setDomain(d.getDomain() == null ? ctx.getDomain() : d.getDomain())
.setExecutionStartToCloseTimeoutSeconds(
d.getExecutionStartToCloseTimeoutSeconds())
.setTaskStartToCloseTimeoutSeconds(d.getTaskStartToCloseTimeoutSeconds())
.setTaskList(d.getTaskList())
.setWorkflowId(d.getWorkflowId())
.setWorkflowIdReusePolicy(d.getWorkflowIdReusePolicy())
.setWorkflowType(d.getWorkflowType())
.setRetryPolicy(d.getRetryPolicy())
.setCronSchedule(d.getCronSchedule());
if (d.isSetInput()) {
startChild.setInput(d.getInput());
}
addStartChildTask(ctx, data, initiatedEventId, startChild);
});
}
private static void addStartChildTask(
RequestContext ctx,
ChildWorkflowData data,
long initiatedEventId,
StartWorkflowExecutionRequest startChild) {
ForkJoinPool.commonPool()
.execute(
() -> {
try {
int backoffIntervalSecs =
TestWorkflowMutableStateImpl.getBackoffIntervalSeconds(
data.service::currentTimeMillis, startChild.getCronSchedule());
data.service.startWorkflowExecutionImpl(
startChild,
backoffIntervalSecs,
Optional.of(ctx.getWorkflowMutableState()),
OptionalLong.of(data.initiatedEventId),
Optional.empty());
} catch (WorkflowExecutionAlreadyStartedError workflowExecutionAlreadyStartedError) {
StartChildWorkflowExecutionFailedEventAttributes failRequest =
new StartChildWorkflowExecutionFailedEventAttributes()
.setInitiatedEventId(initiatedEventId)
.setCause(ChildWorkflowExecutionFailedCause.WORKFLOW_ALREADY_RUNNING);
try {
ctx.getWorkflowMutableState()
.failStartChildWorkflow(data.initiatedEvent.getWorkflowId(), failRequest);
} catch (Throwable e) {
log.error("Unexpected failure inserting failStart for a child workflow", e);
}
} catch (Exception e) {
log.error("Unexpected failure starting a child workflow", e);
}
});
}
private static void startWorkflow(
RequestContext ctx, WorkflowData data, StartWorkflowExecutionRequest request, long notUsed)
throws BadRequestError {
WorkflowExecutionStartedEventAttributes a = new WorkflowExecutionStartedEventAttributes();
if (request.isSetIdentity()) {
a.setIdentity(request.getIdentity());
}
if (!request.isSetTaskStartToCloseTimeoutSeconds()) {
throw new BadRequestError("missing taskStartToCloseTimeoutSeconds");
}
a.setTaskStartToCloseTimeoutSeconds(request.getTaskStartToCloseTimeoutSeconds());
if (!request.isSetWorkflowType()) {
throw new BadRequestError("missing workflowType");
}
a.setWorkflowType(request.getWorkflowType());
if (!request.isSetTaskList()) {
throw new BadRequestError("missing taskList");
}
a.setTaskList(request.getTaskList());
if (!request.isSetExecutionStartToCloseTimeoutSeconds()) {
throw new BadRequestError("missing executionStartToCloseTimeoutSeconds");
}
a.setExecutionStartToCloseTimeoutSeconds(request.getExecutionStartToCloseTimeoutSeconds());
if (request.isSetInput()) {
a.setInput(request.getInput());
}
if (data.retryState.isPresent()) {
a.setAttempt(data.retryState.get().getAttempt());
}
a.setLastCompletionResult(data.lastCompletionResult);
a.setMemo(request.getMemo());
a.setSearchAttributes((request.getSearchAttributes()));
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.WorkflowExecutionStarted)
.setWorkflowExecutionStartedEventAttributes(a);
ctx.addEvent(event);
}
private static void completeWorkflow(
RequestContext ctx,
WorkflowData data,
CompleteWorkflowExecutionDecisionAttributes d,
long decisionTaskCompletedEventId) {
WorkflowExecutionCompletedEventAttributes a =
new WorkflowExecutionCompletedEventAttributes()
.setResult(d.getResult())
.setDecisionTaskCompletedEventId(decisionTaskCompletedEventId);
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.WorkflowExecutionCompleted)
.setWorkflowExecutionCompletedEventAttributes(a);
ctx.addEvent(event);
}
private static void continueAsNewWorkflow(
RequestContext ctx,
WorkflowData data,
ContinueAsNewWorkflowExecutionDecisionAttributes d,
long decisionTaskCompletedEventId) {
StartWorkflowExecutionRequest sr = ctx.getWorkflowMutableState().getStartRequest();
WorkflowExecutionContinuedAsNewEventAttributes a =
new WorkflowExecutionContinuedAsNewEventAttributes();
a.setInput(d.getInput());
if (d.isSetExecutionStartToCloseTimeoutSeconds()) {
a.setExecutionStartToCloseTimeoutSeconds(d.getExecutionStartToCloseTimeoutSeconds());
} else {
a.setExecutionStartToCloseTimeoutSeconds(sr.getExecutionStartToCloseTimeoutSeconds());
}
if (d.isSetTaskList()) {
a.setTaskList(d.getTaskList());
} else {
a.setTaskList(sr.getTaskList());
}
if (d.isSetWorkflowType()) {
a.setWorkflowType(d.getWorkflowType());
} else {
a.setWorkflowType(sr.getWorkflowType());
}
if (d.isSetTaskStartToCloseTimeoutSeconds()) {
a.setTaskStartToCloseTimeoutSeconds(d.getTaskStartToCloseTimeoutSeconds());
} else {
a.setTaskStartToCloseTimeoutSeconds(sr.getTaskStartToCloseTimeoutSeconds());
}
a.setDecisionTaskCompletedEventId(decisionTaskCompletedEventId);
a.setBackoffStartIntervalInSeconds(d.getBackoffStartIntervalInSeconds());
a.setLastCompletionResult(d.getLastCompletionResult());
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.WorkflowExecutionContinuedAsNew)
.setWorkflowExecutionContinuedAsNewEventAttributes(a);
ctx.addEvent(event);
}
private static void failWorkflow(
RequestContext ctx,
WorkflowData data,
FailWorkflowExecutionDecisionAttributes d,
long decisionTaskCompletedEventId) {
WorkflowExecutionFailedEventAttributes a =
new WorkflowExecutionFailedEventAttributes()
.setReason(d.getReason())
.setDetails(d.getDetails())
.setDecisionTaskCompletedEventId(decisionTaskCompletedEventId);
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.WorkflowExecutionFailed)
.setWorkflowExecutionFailedEventAttributes(a);
ctx.addEvent(event);
}
private static void timeoutWorkflow(
RequestContext ctx, WorkflowData data, TimeoutType timeoutType, long notUsed) {
WorkflowExecutionTimedOutEventAttributes a =
new WorkflowExecutionTimedOutEventAttributes().setTimeoutType(timeoutType);
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.WorkflowExecutionTimedOut)
.setWorkflowExecutionTimedOutEventAttributes(a);
ctx.addEvent(event);
}
private static void cancelWorkflow(
RequestContext ctx,
WorkflowData data,
CancelWorkflowExecutionDecisionAttributes d,
long decisionTaskCompletedEventId) {
WorkflowExecutionCanceledEventAttributes a =
new WorkflowExecutionCanceledEventAttributes()
.setDetails(d.getDetails())
.setDecisionTaskCompletedEventId(decisionTaskCompletedEventId);
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.WorkflowExecutionCanceled)
.setWorkflowExecutionCanceledEventAttributes(a);
ctx.addEvent(event);
}
private static void requestWorkflowCancellation(
RequestContext ctx,
WorkflowData data,
RequestCancelWorkflowExecutionRequest cancelRequest,
long notUsed) {
WorkflowExecutionCancelRequestedEventAttributes a =
new WorkflowExecutionCancelRequestedEventAttributes()
.setIdentity(cancelRequest.getIdentity());
HistoryEvent cancelRequested =
new HistoryEvent()
.setEventType(EventType.WorkflowExecutionCancelRequested)
.setWorkflowExecutionCancelRequestedEventAttributes(a);
ctx.addEvent(cancelRequested);
}
private static void scheduleActivityTask(
RequestContext ctx,
ActivityTaskData data,
ScheduleActivityTaskDecisionAttributes d,
long decisionTaskCompletedEventId)
throws BadRequestError {
int scheduleToCloseTimeoutSeconds = d.getScheduleToCloseTimeoutSeconds();
int scheduleToStartTimeoutSeconds = d.getScheduleToStartTimeoutSeconds();
RetryState retryState;
RetryPolicy retryPolicy = d.getRetryPolicy();
if (retryPolicy != null) {
long expirationInterval =
TimeUnit.SECONDS.toMillis(retryPolicy.getExpirationIntervalInSeconds());
long expirationTime = data.store.currentTimeMillis() + expirationInterval;
retryState = new RetryState(retryPolicy, expirationTime);
// Override activity timeouts to allow retry policy to run up to its expiration.
int overriddenTimeout;
if (retryPolicy.getExpirationIntervalInSeconds() > 0) {
overriddenTimeout = retryPolicy.getExpirationIntervalInSeconds();
} else {
overriddenTimeout =
data.startWorkflowExecutionRequest.getExecutionStartToCloseTimeoutSeconds();
}
scheduleToCloseTimeoutSeconds = overriddenTimeout;
scheduleToStartTimeoutSeconds = overriddenTimeout;
} else {
retryState = null;
}
ActivityTaskScheduledEventAttributes a =
new ActivityTaskScheduledEventAttributes()
.setInput(d.getInput())
.setActivityId(d.getActivityId())
.setActivityType(d.getActivityType())
.setDomain(d.getDomain() == null ? ctx.getDomain() : d.getDomain())
.setHeartbeatTimeoutSeconds(d.getHeartbeatTimeoutSeconds())
.setScheduleToCloseTimeoutSeconds(scheduleToCloseTimeoutSeconds)
.setScheduleToStartTimeoutSeconds(scheduleToStartTimeoutSeconds)
.setStartToCloseTimeoutSeconds(d.getStartToCloseTimeoutSeconds())
.setTaskList(d.getTaskList())
.setRetryPolicy(retryPolicy)
.setDecisionTaskCompletedEventId(decisionTaskCompletedEventId);
data.scheduledEvent =
a; // Cannot set it in onCommit as it is used in the processScheduleActivityTask
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.ActivityTaskScheduled)
.setActivityTaskScheduledEventAttributes(a);
long scheduledEventId = ctx.addEvent(event);
PollForActivityTaskResponse taskResponse =
new PollForActivityTaskResponse()
.setActivityType(d.getActivityType())
.setWorkflowExecution(ctx.getExecution())
.setActivityId(d.getActivityId())
.setInput(d.getInput())
.setHeartbeatTimeoutSeconds(d.getHeartbeatTimeoutSeconds())
.setScheduleToCloseTimeoutSeconds(scheduleToCloseTimeoutSeconds)
.setStartToCloseTimeoutSeconds(d.getStartToCloseTimeoutSeconds())
.setScheduledTimestamp(ctx.currentTimeInNanoseconds())
.setAttempt(0);
TaskListId taskListId = new TaskListId(ctx.getDomain(), d.getTaskList().getName());
ActivityTask activityTask = new ActivityTask(taskListId, taskResponse);
ctx.addActivityTask(activityTask);
ctx.onCommit(
(historySize) -> {
data.scheduledEventId = scheduledEventId;
data.activityTask = activityTask;
data.retryState = retryState;
});
}
private static void requestActivityCancellation(
RequestContext ctx,
ActivityTaskData data,
RequestCancelActivityTaskDecisionAttributes d,
long decisionTaskCompletedEventId) {
ActivityTaskCancelRequestedEventAttributes a =
new ActivityTaskCancelRequestedEventAttributes()
.setActivityId(d.getActivityId())
.setDecisionTaskCompletedEventId(decisionTaskCompletedEventId);
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.ActivityTaskCancelRequested)
.setActivityTaskCancelRequestedEventAttributes(a);
ctx.addEvent(event);
}
private static void scheduleDecisionTask(
RequestContext ctx,
DecisionTaskData data,
StartWorkflowExecutionRequest request,
long notUsed) {
DecisionTaskScheduledEventAttributes a =
new DecisionTaskScheduledEventAttributes()
.setStartToCloseTimeoutSeconds(request.getTaskStartToCloseTimeoutSeconds())
.setTaskList(request.getTaskList())
.setAttempt(data.attempt);
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.DecisionTaskScheduled)
.setDecisionTaskScheduledEventAttributes(a);
long scheduledEventId = ctx.addEvent(event);
PollForDecisionTaskResponse decisionTaskResponse = new PollForDecisionTaskResponse();
if (data.previousStartedEventId > 0) {
decisionTaskResponse.setPreviousStartedEventId(data.previousStartedEventId);
}
decisionTaskResponse.setWorkflowExecution(ctx.getExecution());
decisionTaskResponse.setWorkflowType(request.getWorkflowType());
decisionTaskResponse.setAttempt(data.attempt);
TaskListId taskListId = new TaskListId(ctx.getDomain(), request.getTaskList().getName());
DecisionTask decisionTask = new DecisionTask(taskListId, decisionTaskResponse);
ctx.setDecisionTask(decisionTask);
ctx.onCommit(
(historySize) -> {
data.scheduledEventId = scheduledEventId;
data.decisionTask = decisionTaskResponse;
});
}
private static void startDecisionTask(
RequestContext ctx, DecisionTaskData data, PollForDecisionTaskRequest request, long notUsed) {
DecisionTaskStartedEventAttributes a =
new DecisionTaskStartedEventAttributes()
.setIdentity(request.getIdentity())
.setScheduledEventId(data.scheduledEventId);
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.DecisionTaskStarted)
.setDecisionTaskStartedEventAttributes(a);
long startedEventId = ctx.addEvent(event);
ctx.onCommit(
(historySize) -> {
data.decisionTask.setStartedEventId(startedEventId);
DecisionTaskToken taskToken = new DecisionTaskToken(ctx.getExecutionId(), historySize);
data.decisionTask.setTaskToken(taskToken.toBytes());
GetWorkflowExecutionHistoryRequest getRequest =
new GetWorkflowExecutionHistoryRequest()
.setDomain(request.getDomain())
.setExecution(ctx.getExecution());
List<HistoryEvent> events;
try {
events =
data.store
.getWorkflowExecutionHistory(ctx.getExecutionId(), getRequest)
.getHistory()
.getEvents();
if (ctx.getWorkflowMutableState().getStickyExecutionAttributes() != null) {
events = events.subList((int) data.previousStartedEventId, events.size());
}
// get it from pervious started event id.
} catch (EntityNotExistsError entityNotExistsError) {
throw new InternalServiceError(entityNotExistsError.toString());
}
data.decisionTask.setHistory(new History().setEvents(events));
data.startedEventId = startedEventId;
data.attempt++;
});
}
private static void startActivityTask(
RequestContext ctx, ActivityTaskData data, PollForActivityTaskRequest request, long notUsed) {
ActivityTaskStartedEventAttributes a =
new ActivityTaskStartedEventAttributes()
.setIdentity(request.getIdentity())
.setScheduledEventId(data.scheduledEventId);
if (data.retryState != null) {
a.setAttempt(data.retryState.getAttempt());
}
// Setting timestamp here as the default logic will set it to the time when it is added to the
// history. But in the case of retry it happens only after an activity completion.
long timestamp = TimeUnit.MILLISECONDS.toNanos(data.store.currentTimeMillis());
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.ActivityTaskStarted)
.setTimestamp(timestamp)
.setActivityTaskStartedEventAttributes(a);
long startedEventId;
if (data.retryState == null) {
startedEventId = ctx.addEvent(event);
} else {
startedEventId = NO_EVENT_ID;
}
ctx.onCommit(
(historySize) -> {
data.startedEventId = startedEventId;
data.startedEvent = event;
PollForActivityTaskResponse task = data.activityTask.getTask();
task.setTaskToken(new ActivityId(ctx.getExecutionId(), task.getActivityId()).toBytes());
task.setStartedTimestamp(timestamp);
});
}
private static void completeDecisionTask(
RequestContext ctx,
DecisionTaskData data,
RespondDecisionTaskCompletedRequest request,
long notUsed) {
DecisionTaskCompletedEventAttributes a =
new DecisionTaskCompletedEventAttributes()
.setIdentity(request.getIdentity())
.setScheduledEventId(data.scheduledEventId);
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.DecisionTaskCompleted)
.setDecisionTaskCompletedEventAttributes(a);
ctx.addEvent(event);
ctx.onCommit((historySize) -> data.attempt = 0);
}
private static void failDecisionTask(
RequestContext ctx,
DecisionTaskData data,
RespondDecisionTaskFailedRequest request,
long notUsed) {
DecisionTaskFailedEventAttributes a =
new DecisionTaskFailedEventAttributes()
.setIdentity(request.getIdentity())
.setCause(request.getCause())
.setDetails(request.getDetails())
.setStartedEventId(data.startedEventId)
.setScheduledEventId(data.scheduledEventId);
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.DecisionTaskFailed)
.setDecisionTaskFailedEventAttributes(a);
ctx.addEvent(event);
}
private static void timeoutDecisionTask(
RequestContext ctx, DecisionTaskData data, Object ignored, long notUsed) {
DecisionTaskTimedOutEventAttributes a =
new DecisionTaskTimedOutEventAttributes()
.setStartedEventId(data.startedEventId)
.setTimeoutType(TimeoutType.START_TO_CLOSE)
.setScheduledEventId(data.scheduledEventId);
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.DecisionTaskTimedOut)
.setDecisionTaskTimedOutEventAttributes(a);
ctx.addEvent(event);
}
private static void completeActivityTask(
RequestContext ctx, ActivityTaskData data, Object request, long notUsed) {
if (data.retryState != null) {
ctx.addEvent(data.startedEvent);
}
if (request instanceof RespondActivityTaskCompletedRequest) {
completeActivityTaskByTaskToken(ctx, data, (RespondActivityTaskCompletedRequest) request);
} else if (request instanceof RespondActivityTaskCompletedByIDRequest) {
completeActivityTaskById(ctx, data, (RespondActivityTaskCompletedByIDRequest) request);
} else {
throw new IllegalArgumentException("Unknown request: " + request);
}
}
private static void completeActivityTaskByTaskToken(
RequestContext ctx, ActivityTaskData data, RespondActivityTaskCompletedRequest request) {
ActivityTaskCompletedEventAttributes a =
new ActivityTaskCompletedEventAttributes()
.setIdentity(request.getIdentity())
.setScheduledEventId(data.scheduledEventId)
.setResult(request.getResult())
.setIdentity(request.getIdentity())
.setStartedEventId(data.startedEventId);
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.ActivityTaskCompleted)
.setActivityTaskCompletedEventAttributes(a);
ctx.addEvent(event);
}
private static void completeActivityTaskById(
RequestContext ctx, ActivityTaskData data, RespondActivityTaskCompletedByIDRequest request) {
ActivityTaskCompletedEventAttributes a =
new ActivityTaskCompletedEventAttributes()
.setIdentity(request.getIdentity())
.setScheduledEventId(data.scheduledEventId)
.setResult(request.getResult())
.setIdentity(request.getIdentity())
.setStartedEventId(data.startedEventId);
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.ActivityTaskCompleted)
.setActivityTaskCompletedEventAttributes(a);
ctx.addEvent(event);
}
private static State failActivityTask(
RequestContext ctx, ActivityTaskData data, Object request, long notUsed) {
if (request instanceof RespondActivityTaskFailedRequest) {
return failActivityTaskByTaskToken(ctx, data, (RespondActivityTaskFailedRequest) request);
} else if (request instanceof RespondActivityTaskFailedByIDRequest) {
return failActivityTaskById(ctx, data, (RespondActivityTaskFailedByIDRequest) request);
} else {
throw new IllegalArgumentException("Unknown request: " + request);
}
}
private static State failActivityTaskByTaskToken(
RequestContext ctx, ActivityTaskData data, RespondActivityTaskFailedRequest request) {
if (attemptActivityRetry(ctx, request.getReason(), data)) {
return INITIATED;
}
ActivityTaskFailedEventAttributes a =
new ActivityTaskFailedEventAttributes()
.setIdentity(request.getIdentity())
.setScheduledEventId(data.scheduledEventId)
.setDetails(request.getDetails())
.setReason(request.getReason())
.setIdentity(request.getIdentity())
.setStartedEventId(data.startedEventId);
HistoryEvent event =
new HistoryEvent()
.setEventType(EventType.ActivityTaskFailed)
.setActivityTaskFailedEventAttributes(a);
ctx.addEvent(event);
return FAILED;
}
private static State failActivityTaskById(
RequestContext ctx, ActivityTaskData data, RespondActivityTaskFailedByIDRequest request) {
if (attemptActivityRetry(ctx, request.getReason(), data)) {
return INITIATED;
}
ActivityTaskFailedEventAttributes a =
new ActivityTaskFailedEventAttributes()
.setIdentity(request.getIdentity())
.setScheduledEventId(data.scheduledEventId)
.setDetails(request.getDetails())