@Test
public void testUpdateSinkWithoutMemory() throws FactException, IntrospectionException {
// An AlphaNode should try and repropagate from its source
ReteooRuleBase ruleBase = (ReteooRuleBase) RuleBaseFactory.newRuleBase();
BuildContext buildContext =
new BuildContext(ruleBase, ((ReteooRuleBase) ruleBase).getReteooBuilder().getIdGenerator());
ReteooWorkingMemory workingMemory = (ReteooWorkingMemory) ruleBase.newStatefulSession();
final Rule rule = new Rule("test-rule");
final PropagationContext context =
new PropagationContextImpl(0, PropagationContext.INSERTION, null, null, null);
final MockObjectSource source = new MockObjectSource(buildContext.getNextId());
final InternalReadAccessor extractor =
store.getReader(Cheese.class, "type", getClass().getClassLoader());
final FieldValue field = FieldFactory.getInstance().getFieldValue("cheddar");
final MvelConstraint constraint =
new MvelConstraintTestUtil("type == \"cheddar\"", field, extractor);
final AlphaNode alphaNode =
new AlphaNode(buildContext.getNextId(), constraint, source, buildContext); // no memory
alphaNode.attach();
final MockObjectSink sink1 = new MockObjectSink();
alphaNode.addObjectSink(sink1);
// Assert a single fact which should be in the AlphaNode memory and also
// propagated to the
// the tuple sink
final Cheese cheese = new Cheese("cheddar", 0);
final DefaultFactHandle handle1 = new DefaultFactHandle(1, cheese);
// adding handle to the mock source
source.addFact(handle1);
alphaNode.assertObject(handle1, context, workingMemory);
// Create a fact that should not be propagated, since the alpha node restriction will filter it
// out
final Cheese stilton = new Cheese("stilton", 10);
final DefaultFactHandle handle2 = new DefaultFactHandle(2, stilton);
// adding handle to the mock source
source.addFact(handle2);
alphaNode.assertObject(handle2, context, workingMemory);
assertLength(1, sink1.getAsserted());
// Attach a new tuple sink
final MockObjectSink sink2 = new MockObjectSink();
// Tell the alphanode to update the new node. Make sure the first sink1
// is not updated
// likewise the source should not do anything
alphaNode.updateSink(sink2, context, workingMemory);
assertLength(1, sink1.getAsserted());
assertLength(1, sink2.getAsserted());
assertEquals(1, source.getUdated());
}
public void testUpdateSinkWithMemory() throws FactException, IntrospectionException {
// An AlphaNode with memory should not try and repropagate from its source
// Also it should only update the latest tuple sinky
RuleBaseConfiguration config = new RuleBaseConfiguration();
config.setAlphaMemory(true);
ReteooRuleBase ruleBase = (ReteooRuleBase) RuleBaseFactory.newRuleBase(config);
BuildContext buildContext =
new BuildContext(ruleBase, ((ReteooRuleBase) ruleBase).getReteooBuilder().getIdGenerator());
ReteooWorkingMemory workingMemory = (ReteooWorkingMemory) ruleBase.newStatefulSession();
final Rule rule = new Rule("test-rule");
final PropagationContext context =
new PropagationContextImpl(0, PropagationContext.ASSERTION, null, null);
final MockObjectSource source = new MockObjectSource(buildContext.getNextId());
final FieldExtractor extractor =
cache.getExtractor(Cheese.class, "type", getClass().getClassLoader());
final FieldValue field = FieldFactory.getFieldValue("cheddar");
final Evaluator evaluator = ValueType.OBJECT_TYPE.getEvaluator(Operator.EQUAL);
final LiteralConstraint constraint = new LiteralConstraint(extractor, evaluator, field);
buildContext.setAlphaNodeMemoryAllowed(true);
final AlphaNode alphaNode =
new AlphaNode(buildContext.getNextId(), constraint, source, buildContext); // has memory
alphaNode.attach();
final MockObjectSink sink1 = new MockObjectSink();
alphaNode.addObjectSink(sink1);
// Assert a single fact which should be in the AlphaNode memory and also
// propagated to the
// the tuple sink
final Cheese cheese = new Cheese("cheddar", 0);
final DefaultFactHandle handle1 = new DefaultFactHandle(1, cheese);
alphaNode.assertObject(handle1, context, workingMemory);
// Create a fact that should not be propagated, since the alpha node restriction will filter it
// out
final Cheese stilton = new Cheese("stilton", 10);
final DefaultFactHandle handle2 = new DefaultFactHandle(2, stilton);
// adding handle to the mock source
source.addFact(handle2);
alphaNode.assertObject(handle2, context, workingMemory);
assertLength(1, sink1.getAsserted());
// Attach a new tuple sink
final MockObjectSink sink2 = new MockObjectSink();
// Tell the alphanode to update the new node. Make sure the first sink1
// is not updated
// likewise the source should not do anything
alphaNode.updateSink(sink2, context, workingMemory);
assertLength(1, sink1.getAsserted());
assertLength(1, sink2.getAsserted());
assertEquals(0, source.getUdated());
}
