...
In order to cover the scenario where the process is failed but elements that are in a success state should not be repeat the process, the participant have to know what was the previous state.
Solutions
A simple solution from participant side is that they can use "useState" or "operationalState" to save information related to the deployment process.
...
| Code Block | ||
|---|---|---|
| ||
public record InstanceElementDto(UUID instanceId, UUID elementId, ToscaServiceTemplate toscaServiceTemplateFragment,
Map<String, Object> inProperties, Map<String, Object> outProperties, String operationalState, String useState) {
} |
Below an example how could be usedwith operationalState:
| Code Block | ||
|---|---|---|
| ||
@Override
public void deploy(CompositionElementDto compositionElement, InstanceElementDto instanceElement)
throws PfModelException {
if ("DEPLOYED".equals(instanceElement.useStateoperationalState())) {
// deploy process already done
intermediaryApi.updateAutomationCompositionElementState(instanceId, elementId,
DeployState.DEPLOYED, null, StateChangeResult.NO_ERROR, "Already Deployed");
return;
}
// deployment process
.......................................
.......................................
// end of the deployment process
intermediaryApi.sendAcElementInfo(instanceElement.instanceId(), instanceElement.elementId(),
"", "DEPLOYED", instanceElement.outProperties());
intermediaryApi.updateAutomationCompositionElementState(instanceId, elementId,
DeployState.DEPLOYED, null, StateChangeResult.NO_ERROR, "Deployed");
}
@Override
public void undeploy(CompositionElementDto compositionElement, InstanceElementDto instanceElement)
throws PfModelException {
if ("UNDEPLOYED".equals(instanceElement.useStateoperationalState())) {
// undeploy process already done
intermediaryApi.updateAutomationCompositionElementState(instanceId, elementId,
DeployState.UNDEPLOYED, null, StateChangeResult.NO_ERROR, "Already Undeployed");
return;
}
// undeployment process
.......................................
.......................................
// end of the undeployment process
intermediaryApi.sendAcElementInfo(instanceElement.instanceId(), instanceElement.elementId(),
"", "UNDEPLOYED", instanceElement.outProperties());
intermediaryApi.updateAutomationCompositionElementState(instanceId, elementId,
DeployState.UNDEPLOYED, null, StateChangeResult.NO_ERROR, "Undeployed");
} |
...