public AlphaNodeFieldConstraint getLiteralConstraint(
final Pattern pattern,
final String fieldName,
final String evaluatorString,
final String value)
throws IntrospectionException {
final Class<?> clazz = ((ClassObjectType) pattern.getObjectType()).getClassType();
final InternalReadAccessor extractor =
store.getReader(clazz, fieldName, getClass().getClassLoader());
FieldValue fieldValue =
FieldFactory.getInstance().getFieldValue(value, extractor.getValueType(), null);
return new MvelConstraintTestUtil(fieldName + evaluatorString + value, fieldValue, extractor);
}
/* (non-Javadoc)
* @see junit.framework.TestCase#setUp()
*/
@Before
public void setUp() throws Exception {
kBase = (InternalKnowledgeBase) KnowledgeBaseFactory.newKnowledgeBase();
listener1 = new TestRuleBaseListener("(listener-1) ");
listener2 = new TestRuleBaseListener("(listener-2) ");
kBase.addEventListener(listener1);
kBase.addEventListener(listener2);
final RuleImpl rule1 = new RuleImpl("test1");
final ClassObjectType cheeseObjectType = new ClassObjectType(Cheese.class);
final Pattern pattern = new Pattern(0, cheeseObjectType);
ClassFieldAccessorStore store = new ClassFieldAccessorStore();
store.setClassFieldAccessorCache(
new ClassFieldAccessorCache(Thread.currentThread().getContextClassLoader()));
store.setEagerWire(true);
final ClassFieldReader extractor = store.getReader(Cheese.class, "type");
final FieldValue field = FieldFactory.getInstance().getFieldValue("cheddar");
final MvelConstraint constraint =
new MvelConstraintTestUtil("type == \"cheddar\"", field, extractor);
pattern.addConstraint(constraint);
rule1.addPattern(pattern);
rule1.setConsequence(
new Consequence() {
private static final long serialVersionUID = 510l;
public void evaluate(
final KnowledgeHelper knowledgeHelper, final WorkingMemory workingMemory)
throws Exception {}
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {}
public void writeExternal(ObjectOutput out) throws IOException {}
public String getName() {
return "default";
}
});
final RuleImpl rule2 = new RuleImpl("test2");
final ClassObjectType cheeseObjectType2 = new ClassObjectType(Cheese.class);
final Pattern pattern2 = new Pattern(0, cheeseObjectType2);
final FieldValue field2 = FieldFactory.getInstance().getFieldValue("stilton");
final MvelConstraint constraint2 =
new MvelConstraintTestUtil("type == \"stilton\"", field, extractor);
pattern2.addConstraint(constraint2);
rule2.addPattern(pattern2);
rule2.setConsequence(
new Consequence() {
private static final long serialVersionUID = 510l;
public void evaluate(
final KnowledgeHelper knowledgeHelper, final WorkingMemory workingMemory)
throws Exception {}
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {}
public void writeExternal(ObjectOutput out) throws IOException {}
public String getName() {
return "default";
}
});
pkg = new KnowledgePackageImpl("org.drools.test1");
pkg.addRule(rule1);
pkg.addRule(rule2);
}
public class KieComponentFactory implements Serializable {
public static KieComponentFactory DEFAULT = new KieComponentFactory();
public static KieComponentFactory getDefault() {
return DEFAULT;
}
private FactHandleFactory handleFactory = new ReteooFactHandleFactory();
public FactHandleFactory getFactHandleFactoryService() {
return handleFactory;
}
public void setHandleFactoryProvider(FactHandleFactory provider) {
handleFactory = provider;
}
public void setDefaultHandleFactoryProvider() {
handleFactory = new ReteooFactHandleFactory();
}
public static FactHandleFactory getDefaultHandleFactoryProvider() {
return new ReteooFactHandleFactory();
}
private WorkingMemoryFactory wmFactory = new PhreakWorkingMemoryFactory();
public WorkingMemoryFactory getWorkingMemoryFactory() {
return wmFactory;
}
public void setWorkingMemoryFactory(WorkingMemoryFactory wmFactory) {
this.wmFactory = wmFactory;
}
private NodeFactory nodeFactory = new PhreakNodeFactory();
public NodeFactory getNodeFactoryService() {
return nodeFactory;
}
public void setNodeFactoryProvider(NodeFactory provider) {
nodeFactory = provider;
}
public void setDefaultNodeFactoryProvider() {
nodeFactory = new PhreakNodeFactory();
}
public static NodeFactory getDefaultNodeFactoryProvider() {
return new PhreakNodeFactory();
}
private PropagationContextFactory propagationFactory = new PhreakPropagationContextFactory();
public void setPropagationContextFactory(PropagationContextFactory factory) {
propagationFactory = factory;
}
public PropagationContextFactory getPropagationContextFactory() {
return propagationFactory;
}
private BeliefSystemFactory bsFactory = new PhreakBeliefSystemFactory();
public void setPropagationContextFactory(BeliefSystemFactory factory) {
bsFactory = factory;
}
public BeliefSystemFactory getBeliefSystemFactory() {
return bsFactory;
}
private RuleBuilderFactory ruleBuilderFactory = new ReteooRuleBuilderFactory();
public RuleBuilderFactory getRuleBuilderFactory() {
return ruleBuilderFactory;
}
public void setRuleBuilderProvider(RuleBuilderFactory provider) {
ruleBuilderFactory = provider;
}
public void setDefaultRuleBuilderProvider() {
ruleBuilderFactory = new ReteooRuleBuilderFactory();
}
public static RuleBuilderFactory getDefaultRuleBuilderFactory() {
return new ReteooRuleBuilderFactory();
}
private AgendaFactory agendaFactory = new DefaultAgendaFactory();
public AgendaFactory getAgendaFactory() {
return agendaFactory;
}
public void setAgendaFactory(AgendaFactory provider) {
agendaFactory = provider;
}
public void setDefaultAgendaFactory() {
agendaFactory = new DefaultAgendaFactory();
}
public static AgendaFactory getDefaultAgendaFactory() {
return new DefaultAgendaFactory();
}
private FieldDataFactory fieldFactory = FieldFactory.getInstance();
public FieldDataFactory getFieldFactory() {
return fieldFactory;
}
public void setFieldDataFactory(FieldDataFactory provider) {
fieldFactory = provider;
}
public void setDefaultFieldFactory() {
fieldFactory = FieldFactory.getInstance();
}
public static FieldDataFactory getDefaultFieldFactory() {
return FieldFactory.getInstance();
}
private TripleFactory tripleFactory = new TripleFactoryImpl();
public TripleFactory getTripleFactory() {
return tripleFactory;
}
public void setTripleFactory(TripleFactory provider) {
tripleFactory = provider;
}
public void setDefaultTripleFactory() {
tripleFactory = new TripleFactoryImpl();
}
public static TripleFactory getDefaultTripleFactory() {
return new TripleFactoryImpl();
}
private KnowledgeHelperFactory knowledgeHelperFactory = new DefaultKnowledgeHelperFactory();
public KnowledgeHelperFactory getKnowledgeHelperFactory() {
return knowledgeHelperFactory;
}
public void setKnowledgeHelperFactory(KnowledgeHelperFactory provider) {
knowledgeHelperFactory = provider;
}
public void setDefaultKnowledgeHelperFactory() {
knowledgeHelperFactory = new DefaultKnowledgeHelperFactory();
}
public static KnowledgeHelperFactory getDefaultKnowledgeHelperFactory() {
return new DefaultKnowledgeHelperFactory();
}
private LogicTransformerFactory logicTransformerFactory = new DefaultLogicTransformerFactory();
public LogicTransformerFactory getLogicTransformerFactory() {
return logicTransformerFactory;
}
public void setLogicTransformerFactory(LogicTransformerFactory provider) {
logicTransformerFactory = provider;
}
public void setDefaultLogicTransformerFactory() {
logicTransformerFactory = new DefaultLogicTransformerFactory();
}
public static LogicTransformerFactory getDefaultLogicTransformerFactory() {
return new DefaultLogicTransformerFactory();
}
private TraitFactory traitFactory = new TraitFactory();
public TraitFactory getTraitFactory() {
return traitFactory;
}
public void setTraitFactory(TraitFactory tf) {
traitFactory = tf;
}
public void setDefaultTraitFactory() {
traitFactory = new TraitFactory();
}
public static TraitFactory getDefaultTraitFactory() {
return new TraitFactory();
}
private TraitRegistry traitRegistry = new TraitRegistry();
public TraitRegistry getTraitRegistry() {
return traitRegistry;
}
public void setTraitFactory(TraitRegistry tr) {
traitRegistry = tr;
}
public void setDefaultTraitRegistry() {
traitRegistry = new TraitRegistry();
}
public static TraitRegistry getDefaultTraitRegistry() {
return new TraitRegistry();
}
private TripleStore tripleStore = new TripleStore();
public TripleStore getTripleStore() {
return tripleStore;
}
public void setTraitFactory(TripleStore tr) {
tripleStore = tr;
}
public void setDefaultTripleStore() {
tripleStore = new TripleStore();
}
public static TripleStore getDefaultTripleStore() {
return new TripleStore();
}
private ClassBuilderFactory classBuilderFactory = new ClassBuilderFactory();
public ClassBuilderFactory getClassBuilderFactory() {
return classBuilderFactory;
}
public void setClassBuilderFactory(ClassBuilderFactory tf) {
classBuilderFactory = tf;
}
public void setDefaultClassBuilderFactory() {
classBuilderFactory = new ClassBuilderFactory();
}
public static ClassBuilderFactory getDefaultClassBuilderFactory() {
return new ClassBuilderFactory();
}
private Class<?> baseTraitProxyClass = TraitProxy.class;
public Class<?> getBaseTraitProxyClass() {
return baseTraitProxyClass;
}
public void setBaseTraitProxyClass(Class<?> baseTraitProxyClass) {
this.baseTraitProxyClass = baseTraitProxyClass;
}
}
public static FieldDataFactory getDefaultFieldFactory() {
return FieldFactory.getInstance();
}
public void setDefaultFieldFactory() {
fieldFactory = FieldFactory.getInstance();
}
@Test
public void testAlphaNode() {
final PropagationContext context =
pctxFactory.createPropagationContext(0, PropagationContext.INSERTION, null, null, null);
final StatefulKnowledgeSessionImpl workingMemory = new StatefulKnowledgeSessionImpl(1L, kBase);
final ClassFieldReader extractor = store.getReader(Cheese.class, "type");
final MvelConstraint constraint =
new MvelConstraintTestUtil(
"type == \"stilton\"", FieldFactory.getInstance().getFieldValue("stilton"), extractor);
final List list = new ArrayList();
final Cheese cheese1 = new Cheese("cheddar", 20);
final Cheese cheese2 = new Cheese("brie", 20);
list.add(cheese1);
list.add(cheese2);
final MockDataProvider dataProvider = new MockDataProvider(list);
final Pattern pattern = new Pattern(0, new ClassObjectType(Cheese.class));
From fromCe = new From(dataProvider);
fromCe.setResultPattern(pattern);
final ReteFromNode from =
new ReteFromNode(
3,
dataProvider,
new MockTupleSource(80),
new AlphaNodeFieldConstraint[] {constraint},
null,
true,
buildContext,
fromCe);
final MockLeftTupleSink sink = new MockLeftTupleSink(5);
from.addTupleSink(sink);
final Person person1 = new Person("xxx1", 30);
final FactHandle person1Handle = workingMemory.insert(person1);
final LeftTuple tuple1 = new LeftTupleImpl((DefaultFactHandle) person1Handle, from, true);
from.assertLeftTuple(tuple1, context, workingMemory);
// nothing should be asserted, as cheese1 is cheddar and we are filtering on stilton
assertEquals(0, sink.getAsserted().size());
// Set cheese1 to stilton and it should now propagate
cheese1.setType("stilton");
final Person person2 = new Person("xxx2", 30);
final FactHandle person2Handle = workingMemory.insert(person2);
final LeftTuple tuple2 = new LeftTupleImpl((DefaultFactHandle) person2Handle, from, true);
from.assertLeftTuple(tuple2, context, workingMemory);
final List asserted = sink.getAsserted();
assertEquals(1, asserted.size());
Tuple tuple = (Tuple) ((Object[]) asserted.get(0))[0];
assertSame(person2, tuple.getObject(0));
assertSame(cheese1, tuple.getObject(1));
cheese2.setType("stilton");
final Person person3 = new Person("xxx2", 30);
final FactHandle person3Handle = workingMemory.insert(person3);
final LeftTuple tuple3 = new LeftTupleImpl((DefaultFactHandle) person3Handle, from, true);
from.assertLeftTuple(tuple3, context, workingMemory);
assertEquals(3, asserted.size());
tuple = (Tuple) ((Object[]) asserted.get(1))[0];
assertSame(person3, tuple.getObject(0));
assertSame(cheese1, tuple.getObject(1));
tuple = (Tuple) ((Object[]) asserted.get(2))[0];
assertSame(person3, tuple.getObject(0));
assertSame(cheese2, tuple.getObject(1));
assertNotSame(cheese1, cheese2);
}
@Test
public void testRestract() {
final PropagationContext context =
pctxFactory.createPropagationContext(0, PropagationContext.INSERTION, null, null, null);
final StatefulKnowledgeSessionImpl workingMemory =
new StatefulKnowledgeSessionImpl(
1L, (InternalKnowledgeBase) KnowledgeBaseFactory.newKnowledgeBase());
final ClassFieldReader extractor = store.getReader(Cheese.class, "type");
final MvelConstraint constraint =
new MvelConstraintTestUtil(
"type == \"stilton\"", FieldFactory.getInstance().getFieldValue("stilton"), extractor);
final List list = new ArrayList();
final Cheese cheese1 = new Cheese("stilton", 5);
final Cheese cheese2 = new Cheese("stilton", 15);
list.add(cheese1);
list.add(cheese2);
final MockDataProvider dataProvider = new MockDataProvider(list);
final Pattern pattern = new Pattern(0, new ClassObjectType(Cheese.class));
From fromCe = new From(dataProvider);
fromCe.setResultPattern(pattern);
final ReteFromNode from =
new ReteFromNode(
3,
dataProvider,
new MockTupleSource(30),
new AlphaNodeFieldConstraint[] {constraint},
null,
true,
buildContext,
fromCe);
final MockLeftTupleSink sink = new MockLeftTupleSink(5);
from.addTupleSink(sink);
final List asserted = sink.getAsserted();
final Person person1 = new Person("xxx2", 30);
final FactHandle person1Handle = workingMemory.insert(person1);
final LeftTuple tuple = new LeftTupleImpl((DefaultFactHandle) person1Handle, from, true);
from.assertLeftTuple(tuple, context, workingMemory);
assertEquals(2, asserted.size());
final FromMemory memory = (FromMemory) workingMemory.getNodeMemory(from);
assertEquals(1, memory.getBetaMemory().getLeftTupleMemory().size());
assertNull(memory.getBetaMemory().getRightTupleMemory());
RightTuple rightTuple2 = tuple.getFirstChild().getRightParent();
RightTuple rightTuple1 = tuple.getFirstChild().getHandleNext().getRightParent();
assertFalse(rightTuple1.equals(rightTuple2));
assertNull(tuple.getFirstChild().getHandleNext().getHandleNext());
final InternalFactHandle handle2 = rightTuple2.getFactHandle();
final InternalFactHandle handle1 = rightTuple1.getFactHandle();
assertEquals(handle1.getObject(), cheese2);
assertEquals(handle2.getObject(), cheese1);
from.retractLeftTuple(tuple, context, workingMemory);
assertEquals(0, memory.getBetaMemory().getLeftTupleMemory().size());
assertNull(memory.getBetaMemory().getRightTupleMemory());
}
@Test
public void testQueryTerminalNode() {
final ClassObjectType queryObjectType = new ClassObjectType(DroolsQuery.class);
final ObjectTypeNode queryObjectTypeNode =
new ObjectTypeNode(
this.buildContext.getNextId(), this.entryPoint, queryObjectType, buildContext);
queryObjectTypeNode.attach(buildContext);
ClassFieldReader extractor = store.getReader(DroolsQuery.class, "name");
MvelConstraint constraint =
new MvelConstraintTestUtil(
"name == \"query-1\"", FieldFactory.getInstance().getFieldValue("query-1"), extractor);
final QueryImpl query = new QueryImpl("query-1");
buildContext.setRule(query);
AlphaNode alphaNode =
new AlphaNode(this.buildContext.getNextId(), constraint, queryObjectTypeNode, buildContext);
alphaNode.attach(buildContext);
final LeftInputAdapterNode liaNode =
new LeftInputAdapterNode(this.buildContext.getNextId(), alphaNode, this.buildContext);
liaNode.attach(buildContext);
final ClassObjectType cheeseObjectType = new ClassObjectType(Cheese.class);
final ObjectTypeNode cheeseObjectTypeNode =
new ObjectTypeNode(
this.buildContext.getNextId(), this.entryPoint, cheeseObjectType, buildContext);
cheeseObjectTypeNode.attach(buildContext);
extractor = store.getReader(Cheese.class, "type");
constraint =
new MvelConstraintTestUtil(
"type == \"stilton\"", FieldFactory.getInstance().getFieldValue("stilton"), extractor);
alphaNode =
new AlphaNode(
this.buildContext.getNextId(), constraint, cheeseObjectTypeNode, buildContext);
alphaNode.attach(buildContext);
BuildContext buildContext = new BuildContext(kBase, kBase.getReteooBuilder().getIdGenerator());
buildContext.setTupleMemoryEnabled(false);
final JoinNode joinNode =
new JoinNode(
this.buildContext.getNextId(),
liaNode,
alphaNode,
EmptyBetaConstraints.getInstance(),
buildContext);
joinNode.attach(buildContext);
final QueryTerminalNode queryNode =
new QueryTerminalNode(
this.buildContext.getNextId(),
joinNode,
query,
((QueryImpl) query).getLhs(),
0,
buildContext);
queryNode.attach(buildContext);
final KnowledgePackageImpl pkg = new KnowledgePackageImpl("com.drools.test");
pkg.addRule(query);
((KnowledgeBaseImpl) kBase).addPackages(Arrays.asList(new InternalKnowledgePackage[] {pkg}));
KieSession kSession = kBase.newKieSession();
QueryResults results = kSession.getQueryResults("query-1");
assertEquals(0, results.size());
final Cheese stilton1 = new Cheese("stilton", 100);
final FactHandle handle1 = kSession.insert(stilton1);
results = kSession.getQueryResults("query-1");
assertEquals(1, results.size());
final Cheese cheddar = new Cheese("cheddar", 55);
kSession.insert(cheddar);
results = kSession.getQueryResults("query-1");
assertEquals(1, results.size());
final Cheese stilton2 = new Cheese("stilton", 5);
final FactHandle handle2 = kSession.insert(stilton2);
results = kSession.getQueryResults("query-1");
assertEquals(2, results.size());
/**
* QueryResultsRow result = results.get( 0 ); assertEquals( 1, result.size() ); assertEquals(
* stilton1, result.get( 0 ) );
*
* <p>result = results.get( 1 ); assertEquals( 1, result.size() ); assertEquals( stilton2,
* result.get( 0 ) );
*/
int i = 0;
for (final Iterator<QueryResultsRow> it = results.iterator(); it.hasNext(); ) {
QueryResultsRow resultRow = it.next();
if (i == 1) {
// assertSame( stilton2, result.g( 0 ) );
} else {
// assertSame( stilton1, result.get( 0 ) );
}
i++;
}
kSession.delete(handle1);
results = kSession.getQueryResults("query-1");
assertEquals(1, results.size());
kSession.delete(handle2);
results = kSession.getQueryResults("query-1");
assertEquals(0, results.size());
}