private void addActivity(ActivityBehavior behavior) {
builder
.createActivity(popCurrentId())
.behavior(behavior)
.transition(nextActivityId)
.endActivity();
}
private void addStartState() {
builder
.createActivity("start")
.initial()
.behavior(behaviorFactory.startBehavior())
.transition(genNextActivityId())
.endActivity();
}
@Override
public void addProcess(String id, List<ExecutionPoint> executionPoints) {
builder = new ExtendedProcessDefinitionBuilder(id);
addStartState();
addFlow(executionPoints);
addProcessEndState();
ExtendedProcessDefinitionImpl definition = builder.buildProcessDefinition();
registry.add(definition.getId(), definition);
}
private String[] splitExecution(
String startActivityId,
ActivityBehavior behaviorInstance,
int numberOftransitions,
List<String> transitionIds) {
// add decision
String[] flowIds = new String[numberOftransitions];
builder.createActivity(startActivityId).behavior(behaviorInstance);
for (int i = 0; i < numberOftransitions; i++) {
flowIds[i] = "flow-start-" + popCurrentId();
if (transitionIds != null && i < transitionIds.size()) {
builder.transition(flowIds[i], transitionIds.get(i));
} else {
builder.transition(flowIds[i]);
}
}
builder.endActivity();
return flowIds;
}
private void addFlows(String[] flowIds, List<ExecutionFlow> flows, String endingActivityId) {
for (int i = 0; i < flowIds.length; i++) {
nextActivityId = flowIds[i];
addFlow(flows.get(i));
// end the flow
builder
.createActivity(nextActivityId)
.behavior(behaviorFactory.emptyBehaviorInstance())
.transition(endingActivityId)
.endActivity();
}
}
@Override
public void addParallel(List<ExecutionFlow> threads) {
if (threads.size() >= 2) {
String forkActivityId = popCurrentId();
String joinActivityId = "join-" + popCurrentId();
// split executions with fork
String[] flowIds =
splitExecution(
forkActivityId, behaviorFactory.forkBehaviorInstance(), threads.size(), null);
addFlows(flowIds, threads, joinActivityId);
// add join
builder
.createActivity(joinActivityId)
.behavior(behaviorFactory.joinBehaviorInstance())
.transition(genNextActivityId())
.endActivity();
} else if (threads.size() == 1) {
addFlow(threads.get(0));
}
}
private void addProcessEndState() {
builder
.createActivity(nextActivityId)
.behavior(behaviorFactory.waitBehavior(null))
.endActivity();
}