public void testEvent1() {
RuleFlowProcess process = new RuleFlowProcess();
process.setId("org.drools.process.event");
process.setName("Event Process");
List<Variable> variables = new ArrayList<Variable>();
Variable variable = new Variable();
variable.setName("event");
ObjectDataType personDataType = new ObjectDataType();
personDataType.setClassName("org.drools.Person");
variable.setType(personDataType);
variables.add(variable);
process.getVariableScope().setVariables(variables);
StartNode startNode = new StartNode();
startNode.setName("Start");
startNode.setId(1);
process.addNode(startNode);
MilestoneNode milestoneNode = new MilestoneNode();
milestoneNode.setName("Milestone");
milestoneNode.setConstraint("eval(false)");
milestoneNode.setId(2);
process.addNode(milestoneNode);
new ConnectionImpl(
startNode, Node.CONNECTION_DEFAULT_TYPE,
milestoneNode, Node.CONNECTION_DEFAULT_TYPE);
EventNode eventNode = new EventNode();
EventTypeFilter eventFilter = new EventTypeFilter();
eventFilter.setType("myEvent");
eventNode.addEventFilter(eventFilter);
eventNode.setVariableName("event");
eventNode.setId(3);
process.addNode(eventNode);
final List<String> myList = new ArrayList<String>();
ActionNode actionNode = new ActionNode();
actionNode.setName("Print");
DroolsAction action = new DroolsConsequenceAction("java", null);
action.setMetaData(
"Action",
new Action() {
public void execute(ProcessContext context) throws Exception {
System.out.println(
"Detected event for person " + ((Person) context.getVariable("event")).getName());
myList.add("Executed action");
}
});
actionNode.setAction(action);
actionNode.setId(4);
process.addNode(actionNode);
new ConnectionImpl(
eventNode, Node.CONNECTION_DEFAULT_TYPE,
actionNode, Node.CONNECTION_DEFAULT_TYPE);
Join join = new Join();
join.setName("XOR Join");
join.setType(Join.TYPE_XOR);
join.setId(5);
process.addNode(join);
new ConnectionImpl(
milestoneNode, Node.CONNECTION_DEFAULT_TYPE,
join, Node.CONNECTION_DEFAULT_TYPE);
new ConnectionImpl(
actionNode, Node.CONNECTION_DEFAULT_TYPE,
join, Node.CONNECTION_DEFAULT_TYPE);
EndNode endNode = new EndNode();
endNode.setName("EndNode");
endNode.setId(6);
process.addNode(endNode);
new ConnectionImpl(
join, Node.CONNECTION_DEFAULT_TYPE,
endNode, Node.CONNECTION_DEFAULT_TYPE);
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
((AbstractRuleBase) ((InternalKnowledgeBase) kbase).getRuleBase()).addProcess(process);
StatefulKnowledgeSession ksession = kbase.newStatefulKnowledgeSession();
ProcessInstance processInstance = ksession.startProcess("org.drools.process.event");
assertEquals(0, myList.size());
Person jack = new Person();
jack.setName("Jack");
processInstance.signalEvent("myEvent", jack);
assertEquals(1, myList.size());
assertEquals(ProcessInstance.STATE_COMPLETED, processInstance.getState());
}
@Test
public void testProcessEventListener() throws Exception {
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
// create a simple package with one process to test the events
final InternalKnowledgePackage pkg = new KnowledgePackageImpl("org.drools.test");
RuleFlowProcess process = new RuleFlowProcess();
process.setId("org.drools.core.process.event");
process.setName("Event Process");
StartNode startNode = new StartNode();
startNode.setName("Start");
startNode.setId(1);
process.addNode(startNode);
ActionNode actionNode = new ActionNode();
actionNode.setName("Print");
DroolsAction action = new DroolsConsequenceAction("java", null);
action.setMetaData(
"Action",
new Action() {
public void execute(ProcessContext context) throws Exception {
logger.info("Executed action");
}
});
actionNode.setAction(action);
actionNode.setId(2);
process.addNode(actionNode);
new ConnectionImpl(
startNode, Node.CONNECTION_DEFAULT_TYPE,
actionNode, Node.CONNECTION_DEFAULT_TYPE);
EndNode endNode = new EndNode();
endNode.setName("End");
endNode.setId(3);
process.addNode(endNode);
new ConnectionImpl(
actionNode, Node.CONNECTION_DEFAULT_TYPE,
endNode, Node.CONNECTION_DEFAULT_TYPE);
pkg.addProcess(process);
List<KnowledgePackage> pkgs = new ArrayList<KnowledgePackage>();
pkgs.add(pkg);
kbase.addKnowledgePackages(pkgs);
StatefulKnowledgeSession session = kbase.newStatefulKnowledgeSession();
final List<ProcessEvent> processEventList = new ArrayList<ProcessEvent>();
final ProcessEventListener processEventListener =
new ProcessEventListener() {
public void afterNodeLeft(ProcessNodeLeftEvent event) {
processEventList.add(event);
}
public void afterNodeTriggered(ProcessNodeTriggeredEvent event) {
processEventList.add(event);
}
public void afterProcessCompleted(ProcessCompletedEvent event) {
processEventList.add(event);
}
public void afterProcessStarted(ProcessStartedEvent event) {
processEventList.add(event);
}
public void beforeNodeLeft(ProcessNodeLeftEvent event) {
processEventList.add(event);
}
public void beforeNodeTriggered(ProcessNodeTriggeredEvent event) {
processEventList.add(event);
}
public void beforeProcessCompleted(ProcessCompletedEvent event) {
processEventList.add(event);
}
public void beforeProcessStarted(ProcessStartedEvent event) {
processEventList.add(event);
}
public void beforeVariableChanged(ProcessVariableChangedEvent event) {
processEventList.add(event);
}
public void afterVariableChanged(ProcessVariableChangedEvent event) {
processEventList.add(event);
}
};
session.addEventListener(processEventListener);
// execute the process
session.startProcess("org.drools.core.process.event");
assertEquals(16, processEventList.size());
assertEquals(
"org.drools.core.process.event",
((ProcessStartedEvent) processEventList.get(0)).getProcessInstance().getProcessId());
assertEquals(
"Start",
((ProcessNodeTriggeredEvent) processEventList.get(1)).getNodeInstance().getNodeName());
assertEquals(
"Start", ((ProcessNodeLeftEvent) processEventList.get(2)).getNodeInstance().getNodeName());
assertEquals(
"Print",
((ProcessNodeTriggeredEvent) processEventList.get(3)).getNodeInstance().getNodeName());
assertEquals(
"Print", ((ProcessNodeLeftEvent) processEventList.get(4)).getNodeInstance().getNodeName());
assertEquals(
"End",
((ProcessNodeTriggeredEvent) processEventList.get(5)).getNodeInstance().getNodeName());
assertEquals(
"End", ((ProcessNodeLeftEvent) processEventList.get(6)).getNodeInstance().getNodeName());
assertEquals(
"org.drools.core.process.event",
((ProcessCompletedEvent) processEventList.get(7)).getProcessInstance().getProcessId());
assertEquals(
"org.drools.core.process.event",
((ProcessCompletedEvent) processEventList.get(8)).getProcessInstance().getProcessId());
assertEquals(
"End", ((ProcessNodeLeftEvent) processEventList.get(9)).getNodeInstance().getNodeName());
assertEquals(
"End",
((ProcessNodeTriggeredEvent) processEventList.get(10)).getNodeInstance().getNodeName());
assertEquals(
"Print", ((ProcessNodeLeftEvent) processEventList.get(11)).getNodeInstance().getNodeName());
assertEquals(
"Print",
((ProcessNodeTriggeredEvent) processEventList.get(12)).getNodeInstance().getNodeName());
assertEquals(
"Start", ((ProcessNodeLeftEvent) processEventList.get(13)).getNodeInstance().getNodeName());
assertEquals(
"Start",
((ProcessNodeTriggeredEvent) processEventList.get(14)).getNodeInstance().getNodeName());
assertEquals(
"org.drools.core.process.event",
((ProcessStartedEvent) processEventList.get(15)).getProcessInstance().getProcessId());
}