@Test
public void testOr() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl(
new InputStreamReader(getClass().getResourceAsStream("test_OrNesting.drl")));
final Package pkg = builder.getPackage();
RuleBase ruleBase = getSinglethreadRuleBase();
ruleBase.addPackage(pkg);
ruleBase = SerializationHelper.serializeObject(ruleBase);
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal("results", list);
final Cheese cheddar = new Cheese("cheddar", 7);
final Cheese provolone = new Cheese("provolone", 5);
final Cheese brie = new Cheese("brie", 15);
final Person mark = new Person("mark", "stilton");
FactHandle ch = workingMemory.insert(cheddar);
FactHandle ph = workingMemory.insert(provolone);
FactHandle bh = workingMemory.insert(brie);
FactHandle markh = workingMemory.insert(mark);
workingMemory.fireAllRules();
assertEquals(1, list.size());
}
@Test
public void testNestedCorelatedRulesWithForall() throws Exception {
PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl(
new InputStreamReader(
FirstOrderLogicTest.class.getResourceAsStream(
"test_NestedCorrelatedRulesWithForall.drl")));
RuleBase ruleBase = RuleBaseFactory.newRuleBase();
ruleBase.addPackage(builder.getPackage());
ruleBase = SerializationHelper.serializeObject(ruleBase);
StatefulSession session = ruleBase.newStatefulSession();
List list1 = new ArrayList();
List list2 = new ArrayList();
List list3 = new ArrayList();
List list4 = new ArrayList();
session.setGlobal("list1", list1);
session.setGlobal("list2", list2);
session.setGlobal("list3", list3);
session.setGlobal("list4", list4);
SpecialString first42 = new SpecialString("42");
SpecialString second42 = new SpecialString("42");
SpecialString world = new SpecialString("World");
// System.out.println( "Inserting ..." );
session.insert(world);
session.insert(first42);
session.insert(second42);
// System.out.println( "Done." );
// System.out.println( "Firing rules ..." );
// check all lists are empty
assertTrue(list1.isEmpty());
assertTrue(list2.isEmpty());
assertTrue(list3.isEmpty());
assertTrue(list4.isEmpty());
session.fireAllRules();
// System.out.println( "Done." );
// check first list is populated correctly
assertEquals(0, list1.size());
// check second list is populated correctly
assertEquals(0, list2.size());
// check third list is populated correctly
assertEquals(1, list3.size());
// check fourth list is populated correctly
assertEquals(0, list4.size());
}
@Test
public void testFromInsideNotAndExists() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl(
new InputStreamReader(getClass().getResourceAsStream("test_FromInsideNotAndExists.drl")));
final Package pkg = builder.getPackage();
RuleBase ruleBase = getSinglethreadRuleBase();
ruleBase.addPackage(pkg);
ruleBase = SerializationHelper.serializeObject(ruleBase);
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal("results", list);
final Cheese cheddar = new Cheese("cheddar", 7);
final Cheese provolone = new Cheese("provolone", 5);
final Cheesery cheesery = new Cheesery();
cheesery.addCheese(cheddar);
cheesery.addCheese(provolone);
FactHandle handle = workingMemory.insert(cheesery);
workingMemory.fireAllRules();
assertEquals(0, list.size());
cheesery.addCheese(new Cheese("stilton", 10));
cheesery.removeCheese(cheddar);
workingMemory.update(handle, cheesery);
workingMemory.fireAllRules();
assertEquals(2, list.size());
}
@Test
public void testCollectWithNestedFromWithParams() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl(
new InputStreamReader(getClass().getResourceAsStream("test_CollectWithNestedFrom.drl")));
final Package pkg = builder.getPackage();
RuleBase ruleBase = getSinglethreadRuleBase();
ruleBase.addPackage(pkg);
ruleBase = SerializationHelper.serializeObject(ruleBase);
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List results = new ArrayList();
workingMemory.setGlobal("results", results);
final Person bob = new Person("bob", "stilton");
Cheesery cheesery = new Cheesery();
cheesery.addCheese(new Cheese("stilton", 10));
cheesery.addCheese(new Cheese("brie", 20));
cheesery.addCheese(new Cheese("muzzarela", 8));
cheesery.addCheese(new Cheese("stilton", 5));
cheesery.addCheese(new Cheese("provolone", 1));
workingMemory.insert(bob);
workingMemory.insert(cheesery);
workingMemory.fireAllRules();
assertEquals(1, results.size());
List cheeses = (List) results.get(0);
assertEquals(2, cheeses.size());
assertEquals(bob.getLikes(), ((Cheese) cheeses.get(0)).getType());
assertEquals(bob.getLikes(), ((Cheese) cheeses.get(1)).getType());
}
@Test
public void testForall() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl(
new InputStreamReader(getClass().getResourceAsStream("test_Forall.drl")));
final Package pkg = builder.getPackage();
RuleBase ruleBase = getSinglethreadRuleBase();
ruleBase.addPackage(pkg);
ruleBase = SerializationHelper.serializeObject(ruleBase);
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal("results", list);
final State state = new State("SP");
workingMemory.insert(state);
final Person bob = new Person("Bob");
bob.setStatus(state.getState());
bob.setLikes("stilton");
workingMemory.insert(bob);
workingMemory.fireAllRules();
assertEquals(0, list.size());
workingMemory.insert(new Cheese(bob.getLikes(), 10));
workingMemory.fireAllRules();
assertEquals(1, list.size());
}
@Test
public void testExists() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl(
new InputStreamReader(getClass().getResourceAsStream("exists_rule_test.drl")));
final Package pkg = builder.getPackage();
RuleBase ruleBase = getSinglethreadRuleBase();
ruleBase.addPackage(pkg);
ruleBase = SerializationHelper.serializeObject(ruleBase);
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal("list", list);
final Cheese cheddar = new Cheese("cheddar", 7);
final FactHandle cheddarHandle = workingMemory.insert(cheddar);
workingMemory.fireAllRules();
assertEquals(0, list.size());
final Cheese stilton = new Cheese("stilton", 5);
final FactHandle stiltonHandle = workingMemory.insert(stilton);
workingMemory.fireAllRules();
assertEquals(1, list.size());
final Cheese brie = new Cheese("brie", 5);
final FactHandle brieHandle = workingMemory.insert(brie);
workingMemory.fireAllRules();
assertEquals(1, list.size());
}
@Test
public void testNotWithBindings() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl(
new InputStreamReader(getClass().getResourceAsStream("not_with_bindings_rule_test.drl")));
final Package pkg = builder.getPackage();
final Rule rule = pkg.getRules()[0];
assertTrue(rule.isValid());
assertEquals(0, builder.getErrors().getErrors().length);
RuleBase ruleBase = getSinglethreadRuleBase();
ruleBase.addPackage(pkg);
ruleBase = SerializationHelper.serializeObject(ruleBase);
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal("list", list);
final Cheese stilton = new Cheese("stilton", 5);
final FactHandle stiltonHandle = workingMemory.insert(stilton);
final Cheese cheddar = new Cheese("cheddar", 7);
final FactHandle cheddarHandle = workingMemory.insert(cheddar);
final PersonInterface paul = new Person("paul", "stilton", 12);
workingMemory.insert(paul);
workingMemory.fireAllRules();
assertEquals(0, list.size());
workingMemory.retract(stiltonHandle);
workingMemory.fireAllRules();
assertEquals(1, list.size());
}
@Test
public void testCollectNodeSharing() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl(
new InputStreamReader(getClass().getResourceAsStream("test_collectNodeSharing.drl")));
final Package pkg = builder.getPackage();
RuleBase ruleBase = getSinglethreadRuleBase();
ruleBase.addPackage(pkg);
ruleBase = SerializationHelper.serializeObject(ruleBase);
StatefulSession workingMemory = ruleBase.newStatefulSession();
List results = new ArrayList();
workingMemory.setGlobal("results", results);
workingMemory = SerializationHelper.getSerialisedStatefulSession(workingMemory);
results = (List) workingMemory.getGlobal("results");
workingMemory.insert(new Cheese("stilton", 10));
workingMemory = SerializationHelper.getSerialisedStatefulSession(workingMemory);
results = (List) workingMemory.getGlobal("results");
workingMemory.insert(new Cheese("brie", 15));
workingMemory.fireAllRules();
workingMemory = SerializationHelper.getSerialisedStatefulSession(workingMemory);
results = (List) workingMemory.getGlobal("results");
assertEquals(1, results.size());
assertEquals(2, ((List) results.get(0)).size());
}
@Test
public void testForallSinglePatternWithExists() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl(
new InputStreamReader(
getClass().getResourceAsStream("test_ForallSinglePatternWithExists.drl")));
final Package pkg = builder.getPackage();
RuleBase ruleBase = getSinglethreadRuleBase();
ruleBase.addPackage(pkg);
ruleBase = SerializationHelper.serializeObject(ruleBase);
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal("results", list);
workingMemory.insert(new Cheese("stilton", 10));
workingMemory.insert(new Cheese("brie", 10));
workingMemory.insert(new Cheese("brie", 10));
workingMemory.insert(new Order(1, "bob"));
workingMemory.insert(new Person("bob", "stilton", 10));
workingMemory.insert(new Person("mark", "stilton"));
workingMemory.fireAllRules();
assertEquals(1, list.size());
}
@Test
@Ignore("This test requires us to fix the propagation order")
public void testForallSinglePattern() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl(
new InputStreamReader(getClass().getResourceAsStream("test_ForallSinglePattern.drl")));
final Package pkg = builder.getPackage();
RuleBase ruleBase = getSinglethreadRuleBase();
ruleBase.addPackage(pkg);
ruleBase = SerializationHelper.serializeObject(ruleBase);
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal("results", list);
int fired = 0;
// no cheeses, so should fire
workingMemory.fireAllRules();
assertEquals(++fired, list.size());
// only stilton, so should not fire again
FactHandle stilton1 = workingMemory.insert(new Cheese("stilton", 10));
workingMemory.fireAllRules();
assertEquals(fired, list.size());
// only stilton, so should not fire again
FactHandle stilton2 = workingMemory.insert(new Cheese("stilton", 11));
workingMemory.fireAllRules();
assertEquals(fired, list.size());
// still only stilton, so should not fire
workingMemory.retract(stilton1);
workingMemory.fireAllRules();
assertEquals(
++fired, // we need to fix forall to not fire in this situation
list.size());
// there is a brie, so should not fire
FactHandle brie = workingMemory.insert(new Cheese("brie", 10));
workingMemory.fireAllRules();
assertEquals(fired, list.size());
// no brie anymore, so should fire
workingMemory.retract(brie);
workingMemory.fireAllRules();
assertEquals(++fired, list.size());
// no more cheese, but since it already fired, should not fire again
workingMemory.retract(stilton2);
workingMemory.fireAllRules();
assertEquals(fired, list.size());
}
@Test
public void testRemoveIdentitiesSubNetwork() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl(
new InputStreamReader(
getClass().getResourceAsStream("test_removeIdentitiesSubNetwork.drl")));
final Package pkg = builder.getPackage();
final RuleBaseConfiguration config = new RuleBaseConfiguration();
config.setRemoveIdentities(true);
RuleBase ruleBase = getRuleBase(config);
ruleBase.addPackage(pkg);
ruleBase = SerializationHelper.serializeObject(ruleBase);
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal("results", list);
final Person bob = new Person("bob", "stilton");
workingMemory.insert(bob);
final Person mark = new Person("mark", "stilton");
workingMemory.insert(mark);
final Cheese stilton1 = new Cheese("stilton", 6);
final FactHandle stilton1Handle = workingMemory.insert(stilton1);
final Cheese stilton2 = new Cheese("stilton", 7);
final FactHandle stilton2Handle = workingMemory.insert(stilton2);
workingMemory.fireAllRules();
assertEquals(0, list.size());
workingMemory.retract(stilton1Handle);
workingMemory.fireAllRules();
assertEquals(1, list.size());
assertEquals(mark, list.get(0));
workingMemory.retract(stilton2Handle);
workingMemory.fireAllRules();
assertEquals(2, list.size());
assertEquals(bob, list.get(1));
}
@Test
public void testCollectAfterOrCE() throws Exception {
// Set up facts
final Cheesery bonFromage = new Cheesery();
bonFromage.addCheese(new Cheese("cheddar"));
bonFromage.addCheese(new Cheese("cheddar"));
// Test in memory compile of DRL
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(
ResourceFactory.newClassPathResource("test_OrCEFollowedByCollect.drl", getClass()),
ResourceType.DRL);
KnowledgeBuilderErrors errors = kbuilder.getErrors();
if (errors.size() > 0) {
for (KnowledgeBuilderError error : errors) {
logger.warn(error.toString());
}
throw new IllegalArgumentException("Could not parse knowledge.");
}
assertFalse(kbuilder.hasErrors());
Collection<KnowledgePackage> knowledgePackages = kbuilder.getKnowledgePackages();
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages(knowledgePackages);
StatefulKnowledgeSession session = createKnowledgeSession(kbase);
session.insert(bonFromage);
int rules = session.fireAllRules();
assertEquals(2, rules);
// Serialize and test again
knowledgePackages = SerializationHelper.serializeObject(knowledgePackages);
kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages(knowledgePackages);
session = createKnowledgeSession(kbase);
session.insert(bonFromage);
rules = session.fireAllRules();
assertEquals(2, rules);
}
@Test
public void testCollectWithContainsOperators() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl(
new InputStreamReader(getClass().getResourceAsStream("test_CollectContainsOperator.drl")));
final Package pkg = builder.getPackage();
RuleBase ruleBase = getSinglethreadRuleBase();
ruleBase.addPackage(pkg);
ruleBase = SerializationHelper.serializeObject(ruleBase);
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal("results", list);
final Order order1 = new Order(1, "bob");
final OrderItem item11 = new OrderItem(order1, 1);
final OrderItem item12 = new OrderItem(order1, 2);
final Order order2 = new Order(2, "mark");
final OrderItem item21 = new OrderItem(order2, 1);
final OrderItem item22 = new OrderItem(order2, 2);
workingMemory.insert(order1);
workingMemory.insert(item11);
workingMemory.insert(item12);
workingMemory.insert(order2);
workingMemory.insert(item21);
workingMemory.insert(item22);
workingMemory.fireAllRules();
int index = 0;
assertEquals(8, list.size());
assertSame(order1, list.get(index++));
assertSame(item11, list.get(index++));
assertSame(order2, list.get(index++));
assertSame(item21, list.get(index++));
assertSame(order1, list.get(index++));
assertSame(item11, list.get(index++));
assertSame(order2, list.get(index++));
assertSame(item21, list.get(index++));
}
@Test
public void testExists2() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl(
new InputStreamReader(getClass().getResourceAsStream("test_exists.drl")));
final Package pkg = builder.getPackage();
RuleBase ruleBase = getSinglethreadRuleBase();
ruleBase.addPackage(pkg);
ruleBase = SerializationHelper.serializeObject(ruleBase);
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal("list", list);
final Cheese cheddar = new Cheese("cheddar", 7);
final Cheese provolone = new Cheese("provolone", 5);
final Person edson = new Person("Edson", "cheddar");
final Person bob = new Person("Bob", "muzzarela");
workingMemory.insert(cheddar);
workingMemory.fireAllRules();
assertEquals(0, list.size());
workingMemory.insert(provolone);
workingMemory.fireAllRules();
assertEquals(0, list.size());
workingMemory.insert(edson);
workingMemory.fireAllRules();
assertEquals(1, list.size());
workingMemory.insert(bob);
workingMemory.fireAllRules();
assertEquals(1, list.size());
}
@Test
public void testExistsWithBinding() throws Exception {
final PackageBuilder builder = new PackageBuilder();
builder.addPackageFromDrl(
new InputStreamReader(getClass().getResourceAsStream("test_ExistsWithBindings.drl")));
final Package pkg = builder.getPackage();
RuleBase ruleBase = getSinglethreadRuleBase();
ruleBase.addPackage(pkg);
ruleBase = SerializationHelper.serializeObject(ruleBase);
final WorkingMemory workingMemory = ruleBase.newStatefulSession();
final List list = new ArrayList();
workingMemory.setGlobal("results", list);
final Cheese c = new Cheese("stilton", 10);
final Person p = new Person("Mark", "stilton");
workingMemory.insert(c);
workingMemory.insert(p);
workingMemory.fireAllRules();
assertTrue(list.contains(c.getType()));
assertEquals(1, list.size());
}