use of org.onosproject.workflow.api.TimeoutTask in project onos by opennetworkinglab.
the class WorkFlowEngine method execWorkflowContext.
/**
* Executes workflow context.
*
* @param context workflow context
* @return workflow context
*/
private WorkflowContext execWorkflowContext(WorkflowContext context) {
Workflow workflow = workflowStore.get(context.workflowId());
if (workflow == null) {
log.error("Invalid workflow {}", context.workflowId());
return null;
}
final WorkflowContext latestContext = workplaceStore.getContext(context.name());
if (latestContext == null) {
log.error("Invalid workflow context {}", context.name());
return null;
}
initWorkletExecution(latestContext);
try {
final ProgramCounter pc = workflow.next(latestContext);
final Worklet worklet = workflow.getWorkletInstance(pc);
if (worklet == Worklet.Common.INIT) {
log.error("workflow.next gave INIT. It cannot be executed (context: {})", context.name());
return latestContext;
}
latestContext.setCurrent(pc);
if (worklet == Worklet.Common.COMPLETED) {
if (workflow.attributes().contains(REMOVE_AFTER_COMPLETE)) {
workplaceStore.removeContext(latestContext.name());
return null;
} else {
latestContext.setState(WorkflowState.IDLE);
workplaceStore.commitContext(latestContext.name(), latestContext, false);
return latestContext;
}
}
log.info("{} worklet.process:{}", latestContext.name(), worklet.tag());
log.trace("{} context: {}", latestContext.name(), latestContext);
dataModelInjector.inject(worklet, latestContext);
WorkletDescription workletDesc = workflow.getWorkletDesc(pc);
if (Objects.nonNull(workletDesc)) {
if (!(workletDesc.tag().equals("INIT") || workletDesc.tag().equals("COMPLETED"))) {
staticDataModelInjector.inject(worklet, workletDesc);
}
}
worklet.process(latestContext);
dataModelInjector.inhale(worklet, latestContext);
log.info("{} worklet.process(done): {}", latestContext.name(), worklet.tag());
log.trace("{} context: {}", latestContext.name(), latestContext);
if (latestContext.completionEventType() != null) {
if (latestContext.completionEventGenerator() == null) {
String msg = String.format("Invalid exepecting event(%s), generator(%s)", latestContext.completionEventType(), latestContext.completionEventGenerator());
throw new WorkflowException(msg);
}
registerEventMap(latestContext.completionEventType(), latestContext.completionEventHints(), latestContext.name(), pc.toString());
latestContext.completionEventGenerator().apply();
if (latestContext.completionEventTimeout() != 0L) {
final EventTimeoutTask eventTimeoutTask = EventTimeoutTask.builder().context(latestContext).programCounter(pc).eventType(latestContext.completionEventType().getName()).eventHintSet(latestContext.completionEventHints()).build();
timerChain.schedule(latestContext.completionEventTimeout(), () -> {
eventtaskAccumulator.add(eventTimeoutTask);
});
}
} else {
if (latestContext.completionEventTimeout() != 0L) {
final TimeoutTask timeoutTask = TimeoutTask.builder().context(latestContext).programCounter(pc).build();
timerChain.schedule(latestContext.completionEventTimeout(), () -> {
eventtaskAccumulator.add(timeoutTask);
});
} else {
// completed case
// increase program counter
latestContext.setCurrent(workflow.increased(pc));
}
}
workplaceStore.commitContext(latestContext.name(), latestContext, latestContext.triggerNext());
} catch (WorkflowException e) {
log.error("Exception: ", e);
latestContext.setCause(e.getMessage());
latestContext.setState(WorkflowState.EXCEPTION);
workplaceStore.commitContext(latestContext.name(), latestContext, false);
} catch (StorageException e) {
log.error("Exception: ", e);
// StorageException does not commit context.
} catch (Exception e) {
log.error("Exception: ", e);
latestContext.setCause(e.getMessage());
latestContext.setState(WorkflowState.EXCEPTION);
workplaceStore.commitContext(latestContext.name(), latestContext, false);
}
return latestContext;
}
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