Examples with ClassObjectType org.drools.core.base.ClassObjectType used on opensource projects

Example 11 with ClassObjectType

use of org.drools.core.base.ClassObjectType in project drools by kiegroup.

the class MVELConsequenceBuilderTest method testImperativeCodeError.

@Test
public void testImperativeCodeError() throws Exception {
    InternalKnowledgePackage pkg = new KnowledgePackageImpl("pkg1");
    final RuleDescr ruleDescr = new RuleDescr("rule 1");
    ruleDescr.setConsequence("if (cheese.price == 10) { cheese.price = 5; }");
    Properties properties = new Properties();
    properties.setProperty("drools.dialect.default", "mvel");
    KnowledgeBuilderConfigurationImpl cfg1 = new KnowledgeBuilderConfigurationImpl(properties);
    KnowledgeBuilderImpl pkgBuilder = new KnowledgeBuilderImpl(pkg, cfg1);
    PackageRegistry pkgRegistry = pkgBuilder.getPackageRegistry(pkg.getName());
    DialectCompiletimeRegistry dialectRegistry = pkgBuilder.getPackageRegistry(pkg.getName()).getDialectCompiletimeRegistry();
    MVELDialect mvelDialect = (MVELDialect) dialectRegistry.getDialect(pkgRegistry.getDialect());
    final RuleBuildContext context = new RuleBuildContext(pkgBuilder, ruleDescr, dialectRegistry, pkg, mvelDialect);
    final InstrumentedDeclarationScopeResolver declarationResolver = new InstrumentedDeclarationScopeResolver();
    final ObjectType cheeseObjeectType = new ClassObjectType(Cheese.class);
    final Pattern pattern = new Pattern(0, cheeseObjeectType);
    final PatternExtractor extractor = new PatternExtractor(cheeseObjeectType);
    final Declaration declaration = new Declaration("cheese", extractor, pattern);
    final Map<String, Declaration> map = new HashMap<String, Declaration>();
    map.put("cheese", declaration);
    declarationResolver.setDeclarations(map);
    context.setDeclarationResolver(declarationResolver);
    final MVELConsequenceBuilder builder = new MVELConsequenceBuilder();
    builder.build(context, RuleImpl.DEFAULT_CONSEQUENCE_NAME);
    InternalKnowledgeBase kBase = KnowledgeBaseFactory.newKnowledgeBase();
    StatefulKnowledgeSessionImpl ksession = (StatefulKnowledgeSessionImpl) kBase.newKieSession();
    final Cheese cheddar = new Cheese("cheddar", 10);
    final InternalFactHandle f0 = (InternalFactHandle) ksession.insert(cheddar);
    final LeftTupleImpl tuple = new LeftTupleImpl(f0, null, true);
    final AgendaItem item = new AgendaItemImpl(0, tuple, 10, null, null, null);
    final DefaultKnowledgeHelper kbHelper = new DefaultKnowledgeHelper(ksession);
    kbHelper.setActivation(item);
    try {
        ((MVELConsequence) context.getRule().getConsequence()).compile((MVELDialectRuntimeData) pkgBuilder.getPackageRegistry(pkg.getName()).getDialectRuntimeRegistry().getDialectData("mvel"));
        context.getRule().getConsequence().evaluate(kbHelper, ksession);
        fail("should throw an exception, as 'if' is not allowed");
    } catch (Exception e) {
    }
    assertEquals(10, cheddar.getPrice());
}

Example 12 with ClassObjectType

use of org.drools.core.base.ClassObjectType in project drools by kiegroup.

the class MVELEvalBuilderTest method testSimpleExpression.

@Test
public void testSimpleExpression() {
    InternalKnowledgePackage pkg = new KnowledgePackageImpl("pkg1");
    final RuleDescr ruleDescr = new RuleDescr("rule 1");
    KnowledgeBuilderImpl pkgBuilder = new KnowledgeBuilderImpl(pkg);
    final KnowledgeBuilderConfigurationImpl conf = pkgBuilder.getBuilderConfiguration();
    DialectCompiletimeRegistry dialectRegistry = pkgBuilder.getPackageRegistry(pkg.getName()).getDialectCompiletimeRegistry();
    MVELDialect mvelDialect = (MVELDialect) dialectRegistry.getDialect("mvel");
    final RuleBuildContext context = new RuleBuildContext(pkgBuilder, ruleDescr, dialectRegistry, pkg, mvelDialect);
    final InstrumentedDeclarationScopeResolver declarationResolver = new InstrumentedDeclarationScopeResolver();
    final InternalReadAccessor extractor = store.getReader(Cheese.class, "price");
    final Pattern pattern = new Pattern(0, new ClassObjectType(int.class));
    final Declaration declaration = new Declaration("a", extractor, pattern);
    final Map map = new HashMap();
    map.put("a", declaration);
    declarationResolver.setDeclarations(map);
    context.setDeclarationResolver(declarationResolver);
    final EvalDescr evalDescr = new EvalDescr();
    evalDescr.setContent("a == 10");
    final MVELEvalBuilder builder = new MVELEvalBuilder();
    final EvalCondition eval = (EvalCondition) builder.build(context, evalDescr);
    ((MVELEvalExpression) eval.getEvalExpression()).compile((MVELDialectRuntimeData) pkgBuilder.getPackageRegistry(pkg.getName()).getDialectRuntimeRegistry().getDialectData("mvel"));
    InternalKnowledgeBase kBase = KnowledgeBaseFactory.newKnowledgeBase();
    StatefulKnowledgeSessionImpl ksession = (StatefulKnowledgeSessionImpl) kBase.newKieSession();
    MockLeftTupleSink sink = new MockLeftTupleSink();
    final Cheese cheddar = new Cheese("cheddar", 10);
    final InternalFactHandle f0 = (InternalFactHandle) ksession.insert(cheddar);
    final LeftTupleImpl tuple = new LeftTupleImpl(f0, sink, true);
    f0.removeLeftTuple(tuple);
    Object evalContext = eval.createContext();
    assertTrue(eval.isAllowed(tuple, ksession, evalContext));
    cheddar.setPrice(9);
    ksession.update(f0, cheddar);
    assertFalse(eval.isAllowed(tuple, ksession, evalContext));
}

Example 13 with ClassObjectType

use of org.drools.core.base.ClassObjectType in project drools by kiegroup.

the class MVELSalienceBuilderTest method setUp.

@Before
public void setUp() throws Exception {
    InternalKnowledgePackage pkg = new KnowledgePackageImpl("pkg1");
    final RuleDescr ruleDescr = new RuleDescr("rule 1");
    ruleDescr.addAttribute(new AttributeDescr("salience", "(p.age + 20)/2"));
    ruleDescr.setConsequence("");
    KnowledgeBuilderImpl pkgBuilder = new KnowledgeBuilderImpl(pkg);
    DialectCompiletimeRegistry dialectRegistry = pkgBuilder.getPackageRegistry(pkg.getName()).getDialectCompiletimeRegistry();
    MVELDialect mvelDialect = (MVELDialect) dialectRegistry.getDialect("mvel");
    context = new RuleBuildContext(pkgBuilder, ruleDescr, dialectRegistry, pkg, mvelDialect);
    final InstrumentedDeclarationScopeResolver declarationResolver = new InstrumentedDeclarationScopeResolver();
    final ObjectType personObjeectType = new ClassObjectType(Person.class);
    final Pattern pattern = new Pattern(0, personObjeectType);
    final PatternExtractor extractor = new PatternExtractor(personObjeectType);
    final Declaration declaration = new Declaration("p", extractor, pattern);
    final Map<String, Declaration> map = new HashMap<String, Declaration>();
    map.put("p", declaration);
    declarationResolver.setDeclarations(map);
    context.setDeclarationResolver(declarationResolver);
    kBase = KnowledgeBaseFactory.newKnowledgeBase();
    SalienceBuilder salienceBuilder = new MVELSalienceBuilder();
    salienceBuilder.build(context);
    ((MVELSalienceExpression) context.getRule().getSalience()).compile((MVELDialectRuntimeData) context.getPkg().getDialectRuntimeRegistry().getDialectData("mvel"));
}

Example 14 with ClassObjectType

use of org.drools.core.base.ClassObjectType in project drools by kiegroup.

the class BetaNodeBuilder method build.

public BetaNode build() {
    NodeFactory nFactory = buildContext.getComponentFactory().getNodeFactoryService();
    EntryPointNode epn = buildContext.getKnowledgeBase().getRete().getEntryPointNodes().values().iterator().next();
    ObjectTypeNode otn = nFactory.buildObjectTypeNode(buildContext.getNextId(), epn, new ClassObjectType(leftType), buildContext);
    LeftInputAdapterNode leftInput = nFactory.buildLeftInputAdapterNode(buildContext.getNextId(), otn, buildContext);
    ObjectSource rightInput = nFactory.buildObjectTypeNode(buildContext.getNextId(), epn, new ClassObjectType(rightType), buildContext);
    ReteTesterHelper reteTesterHelper = new ReteTesterHelper();
    Pattern pattern = new Pattern(0, new ClassObjectType(leftType));
    // BetaNodeFieldConstraint betaConstraint = null;
    BetaConstraints betaConstraints = null;
    if (constraintFieldName != null) {
        ClassFieldAccessorStore store = (ClassFieldAccessorStore) reteTesterHelper.getStore();
        InternalReadAccessor extractor = store.getReader(leftType, leftFieldName);
        Declaration declr = new Declaration(leftVariableName, extractor, pattern);
        betaConstraints = new SingleBetaConstraints(reteTesterHelper.getBoundVariableConstraint(rightType, constraintFieldName, declr, constraintOperator), buildContext.getKnowledgeBase().getConfiguration());
    } else {
        betaConstraints = new EmptyBetaConstraints();
    }
    switch(nodeType) {
        case NodeTypeEnums.JoinNode:
            return new JoinNode(0, leftInput, rightInput, betaConstraints, buildContext);
        case NodeTypeEnums.NotNode:
            return new NotNode(0, leftInput, rightInput, betaConstraints, buildContext);
        case NodeTypeEnums.ExistsNode:
            return new ExistsNode(0, leftInput, rightInput, betaConstraints, buildContext);
    }
    throw new IllegalStateException("Unable to build Node");
}

Example 15 with ClassObjectType

use of org.drools.core.base.ClassObjectType in project drools by kiegroup.

the class AccumulateTemplateTest method testInvokerGenerationSinglePattern.

@Test
public void testInvokerGenerationSinglePattern() {
    final String className = "accumulate0";
    final String[] declarationTypes = new String[] { "String", "int" };
    final Declaration[] declarations = new Declaration[] { new Declaration("name", store.getReader(Person.class, "name"), null), new Declaration("age", store.getReader(Person.class, "age"), null) };
    final Declaration[] inner = new Declaration[] { new Declaration("cheese", new PatternExtractor(new ClassObjectType(Cheese.class)), null), new Declaration("price", store.getReader(Cheese.class, "price"), null) };
    final String[] globals = new String[] { "aGlobal", "anotherGlobal" };
    final List globalTypes = Arrays.asList(new String[] { "String", "String" });
    final Map map = new HashMap();
    map.put("className", StringUtils.ucFirst(className));
    map.put("instanceName", className);
    map.put("package", "org.drools");
    map.put("ruleClassName", "Rule0");
    map.put("invokerClassName", "Rule0" + StringUtils.ucFirst(className) + "Invoker");
    map.put("declarations", declarations);
    map.put("declarationTypes", declarationTypes);
    map.put("globals", globals);
    map.put("globalTypes", globalTypes);
    map.put("innerDeclarations", inner);
    map.put("attributes", new Attribute[] { new Attribute("int", "x") });
    map.put("initCode", "x = 0;");
    map.put("actionCode", "x += 1;");
    map.put("reverseCode", "");
    map.put("resultCode", "x + 10");
    map.put("supportsReverse", "false");
    map.put("resultType", Integer.class);
    map.put("hashCode", new Integer(10));
    map.put("isMultiPattern", Boolean.FALSE);
    TemplateRegistry registry = getInvokerTemplateRegistry();
    Object method = TemplateRuntime.execute(registry.getNamedTemplate("accumulateInvoker"), null, new MapVariableResolverFactory(map), registry);
// System.out.println( method );
}