public void updateSink(
final ObjectSink sink,
final PropagationContext context,
final InternalWorkingMemory workingMemory) {
// @todo
// JBRULES-612: the cache MUST be invalidated when a new node type is added to the network, so
// iterate and reset all caches.
final ObjectTypeNode node = (ObjectTypeNode) sink;
final ObjectType newObjectType = node.getObjectType();
InternalWorkingMemoryEntryPoint wmEntryPoint =
(InternalWorkingMemoryEntryPoint)
workingMemory.getWorkingMemoryEntryPoint(this.entryPoint.getEntryPointId());
for (ObjectTypeConf objectTypeConf :
wmEntryPoint.getObjectTypeConfigurationRegistry().values()) {
if (newObjectType.isAssignableFrom(
objectTypeConf.getConcreteObjectTypeNode().getObjectType())) {
objectTypeConf.resetCache();
ObjectTypeNode sourceNode = objectTypeConf.getConcreteObjectTypeNode();
Iterator it =
((ObjectTypeNodeMemory) workingMemory.getNodeMemory(sourceNode)).memory.iterator();
for (ObjectEntry entry = (ObjectEntry) it.next();
entry != null;
entry = (ObjectEntry) it.next()) {
sink.assertObject((InternalFactHandle) entry.getValue(), context, workingMemory);
}
}
}
}
public static Class<?> getNodeClass(ObjectTypeNode objectTypeNode) {
if (objectTypeNode == null) {
return null;
}
ObjectType objectType = objectTypeNode.getObjectType();
return objectType != null && objectType instanceof ClassObjectType
? ((ClassObjectType) objectType).getClassType()
: null;
}
public ObjectTypeNode getObjectTypeNode(KnowledgeBase kbase, Class<?> nodeClass) {
List<ObjectTypeNode> nodes =
((InternalRuleBase) ((KnowledgeBaseImpl) kbase).ruleBase).getRete().getObjectTypeNodes();
for (ObjectTypeNode n : nodes) {
if (((ClassObjectType) n.getObjectType()).getClassType() == nodeClass) {
return n;
}
}
return null;
}
/**
* Constructus a LeftInputAdapterNode with a unique id that receives <code>FactHandle</code> from
* a parent <code>ObjectSource</code> and adds it to a given pattern in the resulting Tuples.
*
* @param id The unique id of this node in the current Rete network
* @param source The parent node, where Facts are propagated from
*/
public LeftInputAdapterNode(final int id, final ObjectSource source, final BuildContext context) {
super(
id,
context.getPartitionId(),
context.getRuleBase().getConfiguration().isMultithreadEvaluation());
this.objectSource = source;
this.leftTupleMemoryEnabled = context.isTupleMemoryEnabled();
ObjectSource current = source;
while (!(current instanceof ObjectTypeNode)) {
current = current.getParentObjectSource();
}
ObjectTypeNode otn = (ObjectTypeNode) current;
rootQueryNode = ClassObjectType.DroolsQuery_ObjectType.isAssignableFrom(otn.getObjectType());
}
@Test
public void testEvalDetectionInBetaNode() {
// Tests evals are generated and executed with Java dialect
String drl = "";
drl += "package org.test\n";
drl += "import org.drools.Person\n";
drl += "global java.util.List list\n";
drl += "rule test1\n";
drl += "when\n";
drl += " $s : String()\n";
drl += " $p1 : Person( eval( name \n != $s ), name == ( new String($s+\"xxx\") ) )\n";
drl += "then\n";
drl += "end\n";
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newReaderResource(new StringReader(drl)), ResourceType.DRL);
KnowledgeBuilderErrors errors = kbuilder.getErrors();
if (kbuilder.hasErrors()) {
fail(kbuilder.getErrors().toString());
}
assertFalse(kbuilder.hasErrors());
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
List<ObjectTypeNode> nodes =
((InternalRuleBase) ((KnowledgeBaseImpl) kbase).ruleBase).getRete().getObjectTypeNodes();
ObjectTypeNode node = null;
for (ObjectTypeNode n : nodes) {
if (((ClassObjectType) n.getObjectType()).getClassType() == Person.class) {
node = n;
break;
}
}
BetaNode betaanode = (BetaNode) node.getSinkPropagator().getSinks()[0];
BetaNodeFieldConstraint[] constraint = (BetaNodeFieldConstraint[]) betaanode.getConstraints();
PredicateConstraint c = (PredicateConstraint) constraint[0];
assertTrue(c.getPredicateExpression() instanceof PredicateExpression);
assertTrue(c.getPredicateExpression() instanceof CompiledInvoker);
assertTrue(!(c.getPredicateExpression() instanceof MVELPredicateExpression));
ReturnValueRestriction r =
(ReturnValueRestriction) ((VariableConstraint) constraint[1]).getRestriction();
assertTrue(r.getExpression() instanceof ReturnValueExpression);
assertTrue(r.getExpression() instanceof CompiledInvoker);
assertTrue(!(r.getExpression() instanceof MVELReturnValueExpression));
}
@Test
public void testEvalDetectionInAlphaNode() {
// Tests evals are generated and executed with Java dialect
String drl = "";
drl += "package org.test\n";
drl += "import org.drools.Person\n";
drl += "global java.util.List list\n";
drl += "rule test1\n";
drl += "when\n";
drl += " $p1 : Person( eval( name \n != null ), name == ( new String(\"xxx\") ) )\n";
drl += "then\n";
drl += "end\n";
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newReaderResource(new StringReader(drl)), ResourceType.DRL);
KnowledgeBuilderErrors errors = kbuilder.getErrors();
if (kbuilder.hasErrors()) {
fail(kbuilder.getErrors().toString());
}
assertFalse(kbuilder.hasErrors());
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
List<ObjectTypeNode> nodes =
((InternalRuleBase) ((KnowledgeBaseImpl) kbase).ruleBase).getRete().getObjectTypeNodes();
ObjectTypeNode node = null;
for (ObjectTypeNode n : nodes) {
if (((ClassObjectType) n.getObjectType()).getClassType() == Person.class) {
node = n;
break;
}
}
AlphaNode alphanode = (AlphaNode) node.getSinkPropagator().getSinks()[0];
PredicateConstraint c = (PredicateConstraint) alphanode.getConstraint();
assertTrue(c.getPredicateExpression() instanceof PredicateExpression);
assertTrue(c.getPredicateExpression() instanceof CompiledInvoker);
assertTrue(!(c.getPredicateExpression() instanceof MVELPredicateExpression));
alphanode = (AlphaNode) alphanode.getSinkPropagator().getSinks()[0];
AlphaNodeFieldConstraint constraint = alphanode.getConstraint();
if (constraint instanceof LiteralConstraint) {
FieldValue fieldVal = ((LiteralConstraint) constraint).getField();
assertEquals("xxx", fieldVal.getValue());
}
}
@Test
public void testMapAccessorWithStaticFieldAccess() {
String str =
""
+ "package org.test \n"
+ "import "
+ Person.class.getCanonicalName()
+ "\n"
+ "import "
+ Address.class.getCanonicalName()
+ "\n"
+ "import "
+ TestEnum.class.getCanonicalName()
+ "\n"
+ "global java.util.List list \n"
+ "rule \"show\" \n"
+ "when \n"
+ " $m : Person( namedAddresses[TestEnum.ONE] == new Address('s1'), namedAddresses[TestEnum.ONE].street == new Address('s1').street ) \n"
+ "then \n"
+ " list.add('r1'); \n"
+ "end \n";
KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();
kbuilder.add(ResourceFactory.newByteArrayResource(str.getBytes()), ResourceType.DRL);
if (kbuilder.hasErrors()) {
fail(kbuilder.getErrors().toString());
}
KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
kbase.addKnowledgePackages(kbuilder.getKnowledgePackages());
StatefulKnowledgeSession ksession = createKnowledgeSession(kbase);
List list = new ArrayList();
ksession.setGlobal("list", list);
Person p = new Person("yoda");
p.getNamedAddresses().put(TestEnum.ONE, new Address("s1"));
ksession.insert(p);
ksession.fireAllRules();
assertEquals("r1", list.get(0));
// Check it was built with MVELReturnValueExpression constraint
List<ObjectTypeNode> nodes =
((InternalRuleBase) ((KnowledgeBaseImpl) kbase).ruleBase).getRete().getObjectTypeNodes();
ObjectTypeNode node = null;
for (ObjectTypeNode n : nodes) {
if (((ClassObjectType) n.getObjectType()).getClassType() == Person.class) {
node = n;
break;
}
}
AlphaNode alphanode = (AlphaNode) node.getSinkPropagator().getSinks()[0];
AlphaNodeFieldConstraint constraint = alphanode.getConstraint();
if (constraint instanceof MvelConstraint) {
assertTrue(
((MvelConstraint) alphanode.getConstraint()).getFieldExtractor()
instanceof MVELObjectClassFieldReader);
assertEquals(
new Address("s1"), ((MvelConstraint) alphanode.getConstraint()).getField().getValue());
}
alphanode = (AlphaNode) alphanode.getSinkPropagator().getSinks()[0];
constraint = alphanode.getConstraint();
if (constraint instanceof MvelConstraint) {
assertTrue(
((MvelConstraint) alphanode.getConstraint()).getFieldExtractor()
instanceof MVELObjectClassFieldReader);
assertEquals(
new Address("s1").getStreet(),
((MvelConstraint) alphanode.getConstraint()).getField().getValue());
}
}
protected void removeObjectSink(final ObjectSink objectSink) {
final ObjectTypeNode node = (ObjectTypeNode) objectSink;
this.objectTypeNodes.remove(node.getObjectType());
}
/**
* Adds the <code>ObjectSink</code> so that it may receive <code>Objects</code> propagated from
* this <code>ObjectSource</code>.
*
* @param objectSink The <code>ObjectSink</code> to receive propagated <code>Objects</code>. Rete
* only accepts <code>ObjectTypeNode</code>s as parameters to this method, though.
*/
public void addObjectSink(final ObjectSink objectSink) {
final ObjectTypeNode node = (ObjectTypeNode) objectSink;
this.objectTypeNodes.put(node.getObjectType(), node);
}
/* (non-Javadoc)
* @see org.drools.management.ObjectTypeNodeMonitorMbean#isEvent()
*/
public boolean isEvent() {
return node.getObjectType().isEvent();
}
/* (non-Javadoc)
* @see org.drools.management.ObjectTypeNodeMonitorMbean#getObjectType()
*/
public String getObjectType() {
return node.getObjectType().toString();
}
