Examples with PackageRegistry org.drools.compiler.compiler.PackageRegistry used on opensource projects

Example 11 with PackageRegistry

use of org.drools.compiler.compiler.PackageRegistry in project drools by kiegroup.

the class TypeDeclarationCache method buildTypeDeclarationInterfaces.

private boolean buildTypeDeclarationInterfaces(Class cls, Set<TypeDeclaration> tdecls) {
    PackageRegistry pkgReg;
    TypeDeclaration tdecl = this.cacheTypes.get((cls.getName()));
    if (tdecl == null) {
        pkgReg = kbuilder.getPackageRegistry(ClassUtils.getPackage(cls));
        if (pkgReg != null) {
            tdecl = pkgReg.getPackage().getTypeDeclaration(cls.getSimpleName());
        }
    }
    if (tdecl != null) {
        if (!tdecls.add(tdecl)) {
            // the interface already exists, return to stop recursion
            return false;
        }
    }
    Class<?>[] intfs = cls.getInterfaces();
    for (Class<?> intf : intfs) {
        pkgReg = kbuilder.getPackageRegistry(ClassUtils.getPackage(intf));
        if (pkgReg != null) {
            tdecl = pkgReg.getPackage().getTypeDeclaration(intf.getSimpleName());
        }
        if (tdecl != null) {
            tdecls.add(tdecl);
        }
    }
    for (Class<?> intf : intfs) {
        if (!buildTypeDeclarationInterfaces(intf, tdecls)) {
            return false;
        }
    }
    return true;
}

Example 12 with PackageRegistry

use of org.drools.compiler.compiler.PackageRegistry in project drools by kiegroup.

the class TypeDeclarationNameResolver method discoverHierarchyForRedeclarations.

private void discoverHierarchyForRedeclarations(TypeDeclarationDescr typeDescr, PackageDescr packageDescr, TypeResolver typeResolver) {
    PackageRegistry pkReg = kbuilder.getPackageRegistry(packageDescr.getName());
    Class typeClass = TypeDeclarationUtils.getExistingDeclarationClass(typeDescr, pkReg);
    if (typeClass != null) {
        if (typeDescr.isTrait()) {
            fillStaticInterfaces(typeDescr, typeClass);
        } else {
            typeDescr.getSuperTypes().clear();
            typeDescr.addSuperType(typeClass.isInterface() || typeClass == Object.class ? Object.class.getName() : typeClass.getSuperclass().getName());
        }
    } else {
        // avoid to cache in the type resolver that this class doesn't exist
        // since we may still look for it in the wrong package
        typeResolver.registerClass(typeDescr.getFullTypeName(), null);
    }
}

Example 13 with PackageRegistry

use of org.drools.compiler.compiler.PackageRegistry 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 14 with PackageRegistry

use of org.drools.compiler.compiler.PackageRegistry in project drools by kiegroup.

the class JavaConsequenceBuilderPRAlwaysTest method setupTest.

private void setupTest(String consequence, Map<String, Object> namedConsequences) {
    InternalKnowledgePackage pkg = new KnowledgePackageImpl("org.drools");
    pkg.addImport(new ImportDeclaration("org.drools.compiler.Cheese"));
    KnowledgeBuilderConfigurationImpl conf = new KnowledgeBuilderConfigurationImpl();
    // Although it should be the default, for completeness we explicit this is the test cases how RHS should be rewritten as:
    conf.setOption(PropertySpecificOption.ALWAYS);
    KnowledgeBuilderImpl kBuilder = new KnowledgeBuilderImpl(pkg, conf);
    ruleDescr = new RuleDescr("test consequence builder");
    ruleDescr.setConsequence(consequence);
    for (Entry<String, Object> entry : namedConsequences.entrySet()) {
        ruleDescr.addNamedConsequences(entry.getKey(), entry.getValue());
    }
    RuleImpl rule = ruleDescr.toRule();
    PackageRegistry pkgRegistry = kBuilder.getPackageRegistry(pkg.getName());
    DialectCompiletimeRegistry reg = kBuilder.getPackageRegistry(pkg.getName()).getDialectCompiletimeRegistry();
    context = new RuleBuildContext(kBuilder, ruleDescr, reg, pkg, reg.getDialect(pkgRegistry.getDialect()));
    rule.addPattern(new Pattern(0, new ClassObjectType(Cheese.class), "$cheese"));
    Pattern p = new Pattern(1, new ClassObjectType(Person.class), "$persone");
    Declaration declr = p.addDeclaration("age");
    final InternalReadAccessor extractor = PatternBuilder.getFieldReadAccessor(context, new BindingDescr("age", "age"), p, "age", declr, true);
    rule.addPattern(p);
    context.getDeclarationResolver().pushOnBuildStack(rule.getLhs());
    context.getDialect().getConsequenceBuilder().build(context, RuleImpl.DEFAULT_CONSEQUENCE_NAME);
    for (String name : namedConsequences.keySet()) {
        context.getDialect().getConsequenceBuilder().build(context, name);
    }
    context.getDialect().addRule(context);
    pkgRegistry.getPackage().addRule(context.getRule());
    kBuilder.compileAll();
    kBuilder.reloadAll();
}

Example 15 with PackageRegistry

use of org.drools.compiler.compiler.PackageRegistry in project drools by kiegroup.

the class JavaConsequenceBuilderTest method setupTest.

private void setupTest(String consequence, Map<String, Object> namedConsequences) {
    InternalKnowledgePackage pkg = new KnowledgePackageImpl("org.drools");
    pkg.addImport(new ImportDeclaration("org.drools.compiler.Cheese"));
    KnowledgeBuilderConfigurationImpl conf = new KnowledgeBuilderConfigurationImpl();
    // this test was originally intended with PropertyReactive.ALLOWED:
    conf.setOption(PropertySpecificOption.ALLOWED);
    KnowledgeBuilderImpl kBuilder = new KnowledgeBuilderImpl(pkg, conf);
    ruleDescr = new RuleDescr("test consequence builder");
    ruleDescr.setConsequence(consequence);
    for (Entry<String, Object> entry : namedConsequences.entrySet()) {
        ruleDescr.addNamedConsequences(entry.getKey(), entry.getValue());
    }
    RuleImpl rule = ruleDescr.toRule();
    PackageRegistry pkgRegistry = kBuilder.getPackageRegistry(pkg.getName());
    DialectCompiletimeRegistry reg = kBuilder.getPackageRegistry(pkg.getName()).getDialectCompiletimeRegistry();
    context = new RuleBuildContext(kBuilder, ruleDescr, reg, pkg, reg.getDialect(pkgRegistry.getDialect()));
    rule.addPattern(new Pattern(0, new ClassObjectType(Cheese.class), "$cheese"));
    Pattern p = new Pattern(1, new ClassObjectType(Person.class), "$persone");
    Declaration declr = p.addDeclaration("age");
    final InternalReadAccessor extractor = PatternBuilder.getFieldReadAccessor(context, new BindingDescr("age", "age"), p, "age", declr, true);
    rule.addPattern(p);
    context.getDeclarationResolver().pushOnBuildStack(rule.getLhs());
    context.getDialect().getConsequenceBuilder().build(context, RuleImpl.DEFAULT_CONSEQUENCE_NAME);
    for (String name : namedConsequences.keySet()) {
        context.getDialect().getConsequenceBuilder().build(context, name);
    }
    context.getDialect().addRule(context);
    pkgRegistry.getPackage().addRule(context.getRule());
    kBuilder.compileAll();
    kBuilder.reloadAll();
}