Examples with LeftTupleImpl org.drools.core.reteoo.LeftTupleImpl used on opensource projects

Example 11 with LeftTupleImpl

use of org.drools.core.reteoo.LeftTupleImpl in project drools by kiegroup.

the class KnowledgeBuilderTest method testSerializable.

@Test
public void testSerializable() throws Exception {
    final KnowledgeBuilderImpl builder = new KnowledgeBuilderImpl();
    final PackageDescr packageDescr = new PackageDescr("p1");
    final RuleDescr ruleDescr = new RuleDescr("rule-1");
    packageDescr.addRule(ruleDescr);
    final AndDescr lhs = new AndDescr();
    ruleDescr.setLhs(lhs);
    packageDescr.addGlobal(new GlobalDescr("map", "java.util.Map"));
    ruleDescr.setConsequence("map.put(\"value\", new Integer(1) );");
    // check that packageDescr is serializable
    final PackageDescr back = (PackageDescr) SerializationHelper.serializeObject(packageDescr);
    assertNotNull(back);
    assertEquals("p1", back.getName());
    builder.addPackage(packageDescr);
    InternalKnowledgePackage pkg = builder.getPackage(packageDescr.getName());
    final RuleImpl rule = pkg.getRule("rule-1");
    assertLength(0, builder.getErrors().getErrors());
    InternalKnowledgePackage newPkg = SerializationHelper.serializeObject(pkg);
    final RuleImpl newRule = newPkg.getRule("rule-1");
    InternalKnowledgeBase kBase = (InternalKnowledgeBase) KnowledgeBaseFactory.newKnowledgeBase();
    // It's been serialised so we have to simulate the re-wiring process
    newPkg.getDialectRuntimeRegistry().onAdd(kBase.getRootClassLoader());
    newPkg.getDialectRuntimeRegistry().onBeforeExecute();
    kBase.getGlobals().put("map", Map.class);
    final KieSession workingMemory = kBase.newKieSession();
    final HashMap map = new HashMap();
    workingMemory.setGlobal("map", map);
    final LeftTupleImpl tuple = new MockTuple(new HashMap());
    tuple.setLeftTupleSink(new RuleTerminalNode(1, new CompositeObjectSinkAdapterTest.MockBetaNode(), newRule, newRule.getLhs(), 0, new BuildContext(kBase)));
    final Activation activation = new MockActivation(newRule, 0, newRule.getLhs(), tuple);
    final DefaultKnowledgeHelper knowledgeHelper = new org.drools.core.base.DefaultKnowledgeHelper(((StatefulKnowledgeSessionImpl) workingMemory));
    knowledgeHelper.setActivation(activation);
    newRule.getConsequence().evaluate(knowledgeHelper, ((StatefulKnowledgeSessionImpl) workingMemory));
    assertEquals(new Integer(1), map.get("value"));
}

Example 12 with LeftTupleImpl

use of org.drools.core.reteoo.LeftTupleImpl in project drools by kiegroup.

the class KnowledgeBuilderTest method testReload.

@Test
public void testReload() throws Exception {
    final KnowledgeBuilderImpl builder = new KnowledgeBuilderImpl();
    final PackageDescr packageDescr = new PackageDescr("p1");
    final RuleDescr ruleDescr = new RuleDescr("rule-1");
    packageDescr.addRule(ruleDescr);
    final AndDescr lhs = new AndDescr();
    ruleDescr.setLhs(lhs);
    packageDescr.addGlobal(new GlobalDescr("map", "java.util.Map"));
    ruleDescr.setConsequence("map.put(\"value\", new Integer(1) );");
    builder.addPackage(packageDescr);
    InternalKnowledgePackage pkg = builder.getPackage(packageDescr.getName());
    RuleImpl rule = pkg.getRule("rule-1");
    assertLength(0, builder.getErrors().getErrors());
    InternalKnowledgeBase kBase = KnowledgeBaseFactory.newKnowledgeBase();
    kBase.addGlobal("map", Map.class);
    final KieSession workingMemory = kBase.newKieSession();
    final HashMap map = new HashMap();
    workingMemory.setGlobal("map", map);
    final LeftTupleImpl tuple = new MockTuple(new HashMap());
    tuple.setLeftTupleSink(new RuleTerminalNode(1, new CompositeObjectSinkAdapterTest.MockBetaNode(), rule, rule.getLhs(), 0, new BuildContext(kBase)));
    final Activation activation = new MockActivation(rule, 0, rule.getLhs(), tuple);
    DefaultKnowledgeHelper knowledgeHelper = new org.drools.core.base.DefaultKnowledgeHelper(((StatefulKnowledgeSessionImpl) workingMemory));
    knowledgeHelper.setActivation(activation);
    rule.getConsequence().evaluate(knowledgeHelper, ((StatefulKnowledgeSessionImpl) workingMemory));
    assertEquals(new Integer(1), map.get("value"));
    ruleDescr.setConsequence("map.put(\"value\", new Integer(2) );");
    pkg.removeRule(rule);
    // Make sure the compiled classes are also removed
    assertEquals(0, ((JavaDialectRuntimeData) pkg.getDialectRuntimeRegistry().getDialectData("java")).getStore().size());
    builder.addPackage(packageDescr);
    pkg = builder.getPackage(packageDescr.getName());
    rule = pkg.getRule("rule-1");
    knowledgeHelper = new org.drools.core.base.DefaultKnowledgeHelper(((StatefulKnowledgeSessionImpl) workingMemory));
    knowledgeHelper.setActivation(activation);
    rule.getConsequence().evaluate(knowledgeHelper, ((StatefulKnowledgeSessionImpl) workingMemory));
    assertEquals(new Integer(2), map.get("value"));
}

Example 13 with LeftTupleImpl

use of org.drools.core.reteoo.LeftTupleImpl in project drools by kiegroup.

the class RightTupleIndexHashTableTest method testEmptyIterator.

@Test
public void testEmptyIterator() {
    final InternalReadAccessor extractor = store.getReader(Cheese.class, "type");
    final Pattern pattern = new Pattern(0, new ClassObjectType(Cheese.class));
    final Declaration declaration = new Declaration("typeOfCheese", extractor, pattern);
    final FieldIndex fieldIndex = new FieldIndex(extractor, declaration, MvelConstraint.INDEX_EVALUATOR);
    final TupleIndexHashTable map = new TupleIndexHashTable(new FieldIndex[] { fieldIndex }, false);
    final Cheese stilton = new Cheese("stilton", 55);
    final InternalFactHandle stiltonHandle = new DefaultFactHandle(2, stilton);
    assertNull(map.getFirst(new LeftTupleImpl(stiltonHandle, null, true)));
}

Example 14 with LeftTupleImpl

use of org.drools.core.reteoo.LeftTupleImpl in project drools by kiegroup.

the class RightTupleListTest method testEmptyIterator.

@Test
public void testEmptyIterator() {
    final TupleList map = new TupleList();
    final Cheese stilton1 = new Cheese("stilton", 35);
    final InternalFactHandle h1 = new DefaultFactHandle(1, stilton1);
    assertNull(map.getFirst(new LeftTupleImpl(h1, null, true)));
}

Example 15 with LeftTupleImpl

use of org.drools.core.reteoo.LeftTupleImpl in project drools by kiegroup.

the class FieldConstraintTest method testPredicateConstraint.

/**
 * <pre>
 *
 *                (Cheese (price ?price1 )
 *                (Cheese (price ?price2&amp;:(= ?price2 (* 2 ?price1) )
 *
 * </pre>
 */
@Test
public void testPredicateConstraint() {
    InternalKnowledgeBase kBase = (InternalKnowledgeBase) KnowledgeBaseFactory.newKnowledgeBase();
    StatefulKnowledgeSessionImpl ksession = (StatefulKnowledgeSessionImpl) kBase.newKieSession();
    final InternalReadAccessor priceExtractor = store.getReader(Cheese.class, "price");
    Pattern pattern = new Pattern(0, new ClassObjectType(Cheese.class));
    // Bind the extractor to a decleration
    // Declarations know the pattern they derive their value form
    final Declaration price1Declaration = new Declaration("price1", priceExtractor, pattern);
    pattern = new Pattern(1, new ClassObjectType(Cheese.class));
    // Bind the extractor to a decleration
    // Declarations know the pattern they derive their value form
    final Declaration price2Declaration = new Declaration("price2", priceExtractor, pattern);
    final PredicateExpression evaluator = new PredicateExpression() {

        private static final long serialVersionUID = 510l;

        public boolean evaluate(InternalFactHandle handle, Tuple tuple, Declaration[] previousDeclarations, Declaration[] localDeclarations, WorkingMemory workingMemory, Object context) {
            int price1 = previousDeclarations[0].getIntValue((InternalWorkingMemory) workingMemory, tuple.getObject(previousDeclarations[0]));
            int price2 = localDeclarations[0].getIntValue((InternalWorkingMemory) workingMemory, handle.getObject());
            return (price2 == (price1 * 2));
        }

        public Object createContext() {
            return null;
        }

        public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
        }

        public void writeExternal(ObjectOutput out) throws IOException {
        }
    };
    final PredicateConstraint constraint1 = new PredicateConstraint(evaluator, new Declaration[] { price1Declaration }, new Declaration[] { price2Declaration });
    final Cheese cheddar0 = new Cheese("cheddar", 5);
    final InternalFactHandle f0 = (InternalFactHandle) ksession.insert(cheddar0);
    LeftTupleImpl tuple = new LeftTupleImpl(f0, null, true);
    final Cheese cheddar1 = new Cheese("cheddar", 10);
    final InternalFactHandle f1 = (InternalFactHandle) ksession.insert(cheddar1);
    tuple = new LeftTupleImpl(tuple, new RightTupleImpl(f1, null), null, true);
    final PredicateContextEntry context = (PredicateContextEntry) constraint1.createContextEntry();
    context.updateFromTuple(ksession, tuple);
    assertTrue(constraint1.isAllowedCachedLeft(context, f1));
}