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

Example 11 with Tuple

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

the class RightTupleIndexHashTableTest method testSingleEntry.

@Test
public void testSingleEntry() throws Exception {
    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 cheddar = new Cheese("cheddar", 10);
    final InternalFactHandle cheddarHandle1 = new DefaultFactHandle(0, cheddar);
    assertEquals(0, map.size());
    assertNull(map.getFirst(new LeftTupleImpl(cheddarHandle1, null, true)));
    final Cheese stilton1 = new Cheese("stilton", 35);
    RightTuple stiltonRighTuple = new RightTupleImpl(new DefaultFactHandle(1, stilton1), null);
    map.add(stiltonRighTuple);
    assertEquals(1, map.size());
    assertEquals(1, tablePopulationSize(map));
    final Cheese stilton2 = new Cheese("stilton", 80);
    final InternalFactHandle stiltonHandle2 = new DefaultFactHandle(2, stilton2);
    final Tuple tuple = map.getFirst(new LeftTupleImpl(stiltonHandle2, null, true));
    assertSame(stiltonRighTuple.getFactHandle(), tuple.getFactHandle());
    assertNull(tuple.getNext());
}

Example 12 with Tuple

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

the class RightTupleIndexHashTableTest method testTwoEqualEntries.

@Test
public void testTwoEqualEntries() throws Exception {
    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);
    assertEquals(0, map.size());
    final Cheese stilton1 = new Cheese("stilton", 35);
    final InternalFactHandle stiltonHandle1 = new DefaultFactHandle(1, stilton1);
    map.add(new RightTupleImpl(stiltonHandle1, null));
    final Cheese cheddar1 = new Cheese("cheddar", 35);
    final InternalFactHandle cheddarHandle1 = new DefaultFactHandle(2, cheddar1);
    map.add(new RightTupleImpl(cheddarHandle1, null));
    final Cheese stilton2 = new Cheese("stilton", 81);
    final InternalFactHandle stiltonHandle2 = new DefaultFactHandle(3, stilton2);
    map.add(new RightTupleImpl(stiltonHandle2, null));
    assertEquals(3, map.size());
    assertEquals(2, tablePopulationSize(map));
    // Check they are correctly chained to the same FieldIndexEntry
    final Cheese stilton3 = new Cheese("stilton", 89);
    final InternalFactHandle stiltonHandle3 = new DefaultFactHandle(4, stilton2);
    final Tuple tuple = map.getFirst(new LeftTupleImpl(stiltonHandle3, null, true));
    assertSame(stiltonHandle1, tuple.getFactHandle());
    assertSame(stiltonHandle2, ((RightTuple) tuple.getNext()).getFactHandle());
}

Example 13 with Tuple

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

the class RightTupleIndexHashTableTest method testTwoDifferentEntries.

@Test
public void testTwoDifferentEntries() throws Exception {
    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);
    assertEquals(0, map.size());
    final Cheese stilton1 = new Cheese("stilton", 35);
    final InternalFactHandle stiltonHandle1 = new DefaultFactHandle(1, stilton1);
    map.add(new RightTupleImpl(stiltonHandle1, null));
    final Cheese cheddar1 = new Cheese("cheddar", 35);
    final InternalFactHandle cheddarHandle1 = new DefaultFactHandle(2, cheddar1);
    map.add(new RightTupleImpl(cheddarHandle1, null));
    assertEquals(2, map.size());
    assertEquals(2, tablePopulationSize(map));
    final Cheese stilton2 = new Cheese("stilton", 77);
    final InternalFactHandle stiltonHandle2 = new DefaultFactHandle(2, stilton2);
    Tuple tuple = map.getFirst(new LeftTupleImpl(stiltonHandle2, null, true));
    assertSame(stiltonHandle1, tuple.getFactHandle());
    assertNull(tuple.getNext());
    final Cheese cheddar2 = new Cheese("cheddar", 5);
    final InternalFactHandle cheddarHandle2 = new DefaultFactHandle(2, cheddar2);
    tuple = map.getFirst(new LeftTupleImpl(cheddarHandle2, null, true));
    assertSame(cheddarHandle1, tuple.getFactHandle());
    assertNull(tuple.getNext());
}

Example 14 with Tuple

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

the class EvalGenerator method generate.

public static void generate(final EvalStub stub, final Tuple tuple, final Declaration[] declarations, 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(declarations);
    final ClassGenerator generator = createInvokerClassGenerator(stub, workingMemory).setInterfaces(EvalExpression.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, "clone", generator.methodDescr(EvalExpression.class), new ClassGenerator.MethodBody() {

        public void body(MethodVisitor mv) {
            mv.visitVarInsn(ALOAD, 0);
            mv.visitInsn(ARETURN);
        }
    }).addMethod(ACC_PUBLIC, "replaceDeclaration", generator.methodDescr(null, Declaration.class, Declaration.class)).addMethod(ACC_PUBLIC, "evaluate", generator.methodDescr(Boolean.TYPE, Tuple.class, Declaration[].class, WorkingMemory.class, Object.class), new String[] { "java/lang/Exception" }, new GeneratorHelper.EvaluateMethod() {

        public void body(MethodVisitor mv) {
            objAstorePos = 7;
            String[] expectedDeclarations = stub.getExpectedDeclarationTypes();
            int[] declarationsParamsPos = new int[declarations.length];
            mv.visitVarInsn(ALOAD, 1);
            cast(LeftTuple.class);
            // LeftTuple
            mv.visitVarInsn(ASTORE, 5);
            Tuple currentTuple = tuple;
            for (DeclarationMatcher matcher : declarationMatchers) {
                int i = matcher.getOriginalIndex();
                declarationsParamsPos[i] = objAstorePos;
                currentTuple = traverseTuplesUntilDeclaration(currentTuple, matcher.getRootDistance(), 5);
                mv.visitVarInsn(ALOAD, 2);
                push(i);
                // declarations[i]
                mv.visitInsn(AALOAD);
                // workingMemory
                mv.visitVarInsn(ALOAD, 3);
                mv.visitVarInsn(ALOAD, 5);
                invokeInterface(LeftTuple.class, "getFactHandle", InternalFactHandle.class);
                // tuple.getFactHandle().getObject()
                invokeInterface(InternalFactHandle.class, "getObject", Object.class);
                storeObjectFromDeclaration(declarations[i], expectedDeclarations[i]);
            }
            // @{ruleClassName}.@{methodName}(@foreach{declarations}, @foreach{globals})
            StringBuilder evalMethodDescr = new StringBuilder("(");
            for (int i = 0; i < declarations.length; i++) {
                // declarations[i]
                load(declarationsParamsPos[i]);
                evalMethodDescr.append(typeDescr(expectedDeclarations[i]));
            }
            // @foreach{type : globalTypes, identifier : globals} @{type} @{identifier} = ( @{type} ) workingMemory.getGlobal( "@{identifier}" );
            parseGlobals(globals, globalTypes, 3, evalMethodDescr);
            evalMethodDescr.append(")Z");
            mv.visitMethodInsn(INVOKESTATIC, stub.getInternalRuleClassName(), stub.getMethodName(), evalMethodDescr.toString());
            mv.visitInsn(IRETURN);
        }
    });
    stub.setEval(generator.<EvalExpression>newInstance());
}

Example 15 with Tuple

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

the class PredicateGenerator method generate.

public static void generate(final PredicateStub 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(PredicateExpression.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, "evaluate", generator.methodDescr(Boolean.TYPE, InternalFactHandle.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, 1);
            invokeInterface(InternalFactHandle.class, "getObject", Object.class);
            mv.visitVarInsn(ASTORE, 1);
            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 predicateMethodDescr = new StringBuilder("(");
            for (int i = 0; i < previousDeclarations.length; i++) {
                // previousDeclarations[i]
                load(previousDeclarationsParamsPos[i]);
                predicateMethodDescr.append(typeDescr(previousDeclarations[i].getTypeName()));
            }
            for (int i = 0; i < localDeclarations.length; i++) {
                // localDeclarations[i]
                load(localDeclarationsParamsPos[i]);
                predicateMethodDescr.append(typeDescr(localDeclarations[i].getTypeName()));
            }
            // @foreach{type : globalTypes, identifier : globals} @{type} @{identifier} = ( @{type} ) workingMemory.getGlobal( "@{identifier}" );
            parseGlobals(globals, globalTypes, 5, predicateMethodDescr);
            predicateMethodDescr.append(")Z");
            mv.visitMethodInsn(INVOKESTATIC, stub.getInternalRuleClassName(), stub.getMethodName(), predicateMethodDescr.toString());
            mv.visitInsn(IRETURN);
        }
    });
    stub.setPredicate(generator.<PredicateExpression>newInstance());
}