Examples with Tuple org.drools.core.spi.Tuple used on opensource projects

Example 16 with Tuple

use of org.drools.core.spi.Tuple in project drools by kiegroup.

the class ReturnValueGenerator method generate.

public static void generate(final ReturnValueStub stub, final Tuple tuple, final Declaration[] previousDeclarations, final Declaration[] localDeclarations, final WorkingMemory workingMemory) {
    final String[] globals = stub.getGlobals();
    final String[] globalTypes = stub.getGlobalTypes();
    // Sort declarations based on their offset, so it can ascend the tuple's parents stack only once
    final List<DeclarationMatcher> declarationMatchers = matchDeclarationsToTuple(previousDeclarations);
    final ClassGenerator generator = createInvokerClassGenerator(stub, workingMemory).setInterfaces(ReturnValueExpression.class, CompiledInvoker.class);
    generator.addMethod(ACC_PUBLIC, "createContext", generator.methodDescr(Object.class), new ClassGenerator.MethodBody() {

        public void body(MethodVisitor mv) {
            mv.visitInsn(ACONST_NULL);
            mv.visitInsn(ARETURN);
        }
    }).addMethod(ACC_PUBLIC, "replaceDeclaration", generator.methodDescr(null, Declaration.class, Declaration.class)).addMethod(ACC_PUBLIC, "evaluate", generator.methodDescr(FieldValue.class, Object.class, Tuple.class, Declaration[].class, Declaration[].class, WorkingMemory.class, Object.class), new String[] { "java/lang/Exception" }, new GeneratorHelper.EvaluateMethod() {

        public void body(MethodVisitor mv) {
            objAstorePos = 9;
            int[] previousDeclarationsParamsPos = new int[previousDeclarations.length];
            mv.visitVarInsn(ALOAD, 2);
            cast(LeftTuple.class);
            // LeftTuple
            mv.visitVarInsn(ASTORE, 7);
            Tuple currentTuple = tuple;
            for (DeclarationMatcher matcher : declarationMatchers) {
                int i = matcher.getOriginalIndex();
                previousDeclarationsParamsPos[i] = objAstorePos;
                currentTuple = traverseTuplesUntilDeclaration(currentTuple, matcher.getRootDistance(), 7);
                mv.visitVarInsn(ALOAD, 3);
                push(i);
                // declarations[i]
                mv.visitInsn(AALOAD);
                // workingMemory
                mv.visitVarInsn(ALOAD, 5);
                mv.visitVarInsn(ALOAD, 7);
                invokeInterface(LeftTuple.class, "getFactHandle", InternalFactHandle.class);
                // tuple.getFactHandle().getObject()
                invokeInterface(InternalFactHandle.class, "getObject", Object.class);
                storeObjectFromDeclaration(previousDeclarations[i], previousDeclarations[i].getTypeName());
            }
            int[] localDeclarationsParamsPos = parseDeclarations(localDeclarations, 4, 2, 5, false);
            // @{ruleClassName}.@{methodName}(@foreach{previousDeclarations}, @foreach{localDeclarations}, @foreach{globals})
            StringBuilder returnValueMethodDescr = new StringBuilder("(");
            for (int i = 0; i < previousDeclarations.length; i++) {
                // previousDeclarations[i]
                load(previousDeclarationsParamsPos[i]);
                returnValueMethodDescr.append(typeDescr(previousDeclarations[i].getTypeName()));
            }
            for (int i = 0; i < localDeclarations.length; i++) {
                // localDeclarations[i]
                load(localDeclarationsParamsPos[i]);
                returnValueMethodDescr.append(typeDescr(localDeclarations[i].getTypeName()));
            }
            // @foreach{type : globalTypes, identifier : globals} @{type} @{identifier} = ( @{type} ) workingMemory.getGlobal( "@{identifier}" );
            parseGlobals(globals, globalTypes, 5, returnValueMethodDescr);
            returnValueMethodDescr.append(")Lorg/drools/core/spi/FieldValue;");
            mv.visitMethodInsn(INVOKESTATIC, stub.getInternalRuleClassName(), stub.getMethodName(), returnValueMethodDescr.toString());
            mv.visitInsn(ARETURN);
        }
    });
    stub.setReturnValue(generator.<ReturnValueExpression>newInstance());
}

Example 17 with Tuple

use of org.drools.core.spi.Tuple in project drools by kiegroup.

the class ASMConditionEvaluatorJitter method jitEvaluator.

public static ConditionEvaluator jitEvaluator(String expression, Condition condition, Declaration[] declarations, EvaluatorWrapper[] operators, ClassLoader classLoader, Tuple tuple) {
    ClassGenerator generator = new ClassGenerator(getUniqueClassName(), classLoader).setInterfaces(ConditionEvaluator.class).addStaticField(ACC_PRIVATE | ACC_FINAL, "EXPRESSION", String.class, expression).addField(ACC_PRIVATE | ACC_FINAL, "declarations", Declaration[].class);
    generator.addMethod(ACC_PUBLIC, "evaluate", generator.methodDescr(boolean.class, InternalFactHandle.class, InternalWorkingMemory.class, Tuple.class), new EvaluateMethodGenerator(condition, declarations, operators, tuple));
    if (operators.length == 0) {
        generator.addDefaultConstructor(new ClassGenerator.MethodBody() {

            public void body(MethodVisitor mv) {
                putFieldInThisFromRegistry("declarations", Declaration[].class, 1);
                mv.visitInsn(RETURN);
            }
        }, Declaration[].class);
        return generator.newInstance(Declaration[].class, declarations);
    }
    generator.addField(ACC_PRIVATE | ACC_FINAL, "operators", EvaluatorWrapper[].class);
    generator.addDefaultConstructor(new ClassGenerator.MethodBody() {

        public void body(MethodVisitor mv) {
            putFieldInThisFromRegistry("declarations", Declaration[].class, 1);
            putFieldInThisFromRegistry("operators", EvaluatorWrapper[].class, 2);
            mv.visitInsn(RETURN);
        }
    }, Declaration[].class, EvaluatorWrapper[].class);
    return generator.newInstance(Declaration[].class, declarations, EvaluatorWrapper[].class, operators);
}

Example 18 with Tuple

use of org.drools.core.spi.Tuple in project drools by kiegroup.

the class FieldIndexEntryTest method testTwoEntries.

@Test
public void testTwoEntries() {
    final ClassFieldReader extractor = store.getReader(Cheese.class, "type");
    final FieldIndex fieldIndex = new FieldIndex(extractor, null, MvelConstraint.INDEX_EVALUATOR);
    final SingleIndex singleIndex = new SingleIndex(new FieldIndex[] { fieldIndex }, 1);
    Tuple tuple = new RightTupleImpl(new DefaultFactHandle(1, new Cheese("stilton", 10)));
    final TupleList index = new AbstractHashTable.SingleIndexTupleList(singleIndex, tuple, "stilton".hashCode(), false);
    final Cheese stilton1 = new Cheese("stilton", 35);
    final InternalFactHandle h1 = new DefaultFactHandle(1, stilton1);
    final Cheese stilton2 = new Cheese("stilton", 59);
    final InternalFactHandle h2 = new DefaultFactHandle(2, stilton2);
    RightTuple h1RightTuple = new RightTupleImpl(h1, null);
    RightTuple h2RightTuple = new RightTupleImpl(h2, null);
    // test add
    index.add(h1RightTuple);
    index.add(h2RightTuple);
    assertEquals(h1, index.getFirst().getFactHandle());
    assertEquals(h2, ((RightTuple) index.getFirst().getNext()).getFactHandle());
    // test get
    assertEquals(h1, index.get(h1).getFactHandle());
    assertEquals(h2, index.get(h2).getFactHandle());
    // test removal for combinations
    // remove first
    index.remove(h2RightTuple);
    assertEquals(h1RightTuple.getFactHandle(), index.getFirst().getFactHandle());
    // remove second
    index.add(h2RightTuple);
    index.remove(h1RightTuple);
    assertEquals(h2RightTuple.getFactHandle(), index.getFirst().getFactHandle());
    // check index type does not change, as this fact is removed
    stilton1.setType("cheddar");
}

Example 19 with Tuple

use of org.drools.core.spi.Tuple in project drools by kiegroup.

the class MemoryVisitor method checkRightTupleList.

private void checkRightTupleList(final TupleList memory) {
    int count = 0;
    FastIterator rightIt = memory.fastIterator();
    for (Tuple rightTuple = memory.getFirst(); rightTuple != null; rightTuple = (Tuple) rightIt.next(rightTuple)) {
        count++;
    }
    logger.info(indent() + "FactHashTable: " + memory.size() + ":" + count);
    if (memory.size() != count) {
        logger.info(indent() + "error");
    }
}

Example 20 with Tuple

use of org.drools.core.spi.Tuple in project drools by kiegroup.

the class RuleTerminalNode method cancelMatch.

public void cancelMatch(AgendaItem match, InternalWorkingMemoryActions workingMemory) {
    match.cancel();
    if (match.isQueued()) {
        Tuple leftTuple = match.getTuple();
        if (match.getRuleAgendaItem() != null) {
            // phreak must also remove the LT from the rule network evaluator
            if (leftTuple.getMemory() != null) {
                leftTuple.getMemory().remove(leftTuple);
            }
        }
        RuleExecutor ruleExecutor = ((RuleTerminalNodeLeftTuple) leftTuple).getRuleAgendaItem().getRuleExecutor();
        PhreakRuleTerminalNode.doLeftDelete(ruleExecutor.getPathMemory().getActualAgenda(workingMemory), ruleExecutor, leftTuple);
    }
}