Examples with RuleBuildContext org.drools.compiler.rule.builder.RuleBuildContext used on opensource projects

Example 1 with RuleBuildContext

use of org.drools.compiler.rule.builder.RuleBuildContext in project drools by kiegroup.

the class RuleBuilderTest method testBuildDurationExpression.

@Test
public void testBuildDurationExpression() throws Exception {
    // creates mock objects
    final RuleBuildContext context = mock(RuleBuildContext.class);
    final RuleImpl rule = mock(RuleImpl.class);
    // creates input object
    final RuleDescr ruleDescr = new RuleDescr("my rule");
    ruleDescr.addAttribute(new AttributeDescr("duration", "( 1h30m )"));
    ruleDescr.addAttribute(new AttributeDescr("calendars", "[\"cal1\", \"cal2\"]"));
    // defining expectations on the mock object
    when(context.getRule()).thenReturn(rule);
    when(context.getRuleDescr()).thenReturn(ruleDescr);
    // calling the build method
    RuleBuilder.buildAttributes(context);
    // check expectations
    verify(rule).setTimer(new IntervalTimer(null, null, -1, TimeUtils.parseTimeString("1h30m"), 0));
    verify(rule).setCalendars(new String[] { "cal1", "cal2" });
}

Example 2 with RuleBuildContext

use of org.drools.compiler.rule.builder.RuleBuildContext in project drools by kiegroup.

the class RuleBuilderTest method testBuildMetaAttributes.

@Test
public void testBuildMetaAttributes() throws Exception {
    // creates mock objects
    final RuleBuildContext context = mock(RuleBuildContext.class);
    final RuleImpl rule = mock(RuleImpl.class);
    // creates input object
    final RuleDescr ruleDescr = new RuleDescr("my rule");
    ruleDescr.addAnnotation("ruleId", "123");
    ruleDescr.addAnnotation("author", "Bob Doe");
    ruleDescr.addAnnotation("text", "\"It's a quoted\\\" string\"");
    // creates expected results
    // defining expectations on the mock object
    when(context.getRule()).thenReturn(rule);
    when(context.getRuleDescr()).thenReturn(ruleDescr);
    when(context.getKnowledgeBuilder()).thenReturn(new KnowledgeBuilderImpl());
    // calling the build method
    RuleBuilder.buildMetaAttributes(context);
    // check expectations
    verify(rule).addMetaAttribute("ruleId", 123);
    verify(rule).addMetaAttribute("author", "Bob Doe");
    verify(rule).addMetaAttribute("text", "It's a quoted\" string");
}

Example 3 with RuleBuildContext

use of org.drools.compiler.rule.builder.RuleBuildContext in project drools by kiegroup.

the class MVELConsequenceBuilderTest method testSimpleExpression.

@Test
public void testSimpleExpression() throws Exception {
    PackageDescr pkgDescr = new PackageDescr("pkg1");
    KnowledgeBuilderImpl pkgBuilder = new KnowledgeBuilderImpl();
    pkgBuilder.addPackage(pkgDescr);
    InternalKnowledgePackage pkg = pkgBuilder.getPackageRegistry("pkg1").getPackage();
    final RuleDescr ruleDescr = new RuleDescr("rule 1");
    ruleDescr.setNamespace("pkg1");
    ruleDescr.setConsequence("modify (cheese) {price = 5 };\nretract (cheese)");
    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 ObjectType cheeseObjeectType = new ClassObjectType(Cheese.class);
    final Pattern pattern = new Pattern(0, cheeseObjeectType, "cheese");
    final GroupElement subrule = new GroupElement(GroupElement.AND);
    subrule.addChild(pattern);
    final Map<String, Declaration> map = new HashMap<String, Declaration>();
    map.put("cheese", pattern.getDeclaration());
    declarationResolver.setDeclarations(map);
    context.setDeclarationResolver(declarationResolver);
    final MVELConsequenceBuilder builder = new MVELConsequenceBuilder();
    builder.build(context, RuleImpl.DEFAULT_CONSEQUENCE_NAME);
    InternalKnowledgeBase kBase = KnowledgeBaseFactory.newKnowledgeBase();
    PropagationContextFactory pctxFactory = kBase.getConfiguration().getComponentFactory().getPropagationContextFactory();
    kBase.addPackage(pkg);
    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);
    f0.removeLeftTuple(tuple);
    final AgendaItem item = new AgendaItemImpl(0, tuple, 10, pctxFactory.createPropagationContext(1, PropagationContext.Type.DELETION, null, tuple != null ? (TerminalNode) tuple.getTupleSink() : null, null), new RuleTerminalNode(0, new CompositeObjectSinkAdapterTest.MockBetaNode(), context.getRule(), subrule, 0, new BuildContext(kBase)), null);
    final DefaultKnowledgeHelper kbHelper = new DefaultKnowledgeHelper(ksession);
    kbHelper.setActivation(item);
    ((MVELConsequence) context.getRule().getConsequence()).compile((MVELDialectRuntimeData) pkgBuilder.getPackageRegistry(pkg.getName()).getDialectRuntimeRegistry().getDialectData("mvel"));
    context.getRule().getConsequence().evaluate(kbHelper, ksession);
    assertEquals(5, cheddar.getPrice());
}

Example 4 with RuleBuildContext

use of org.drools.compiler.rule.builder.RuleBuildContext 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 5 with RuleBuildContext

use of org.drools.compiler.rule.builder.RuleBuildContext in project drools by kiegroup.

the class MVELConsequenceBuilderTest method testMVELDebugSymbols.

@Test
public void testMVELDebugSymbols() throws DroolsParserException {
    MVELDebugHandler.setDebugMode(true);
    try {
        final DrlParser parser = new DrlParser(LanguageLevelOption.DRL5);
        final PackageDescr pkgDescr = parser.parse(new InputStreamReader(getClass().getResourceAsStream("mvel_rule.drl")));
        // just checking there is no parsing errors
        assertFalse(parser.getErrors().toString(), parser.hasErrors());
        InternalKnowledgePackage pkg = new KnowledgePackageImpl("org.drools");
        final RuleDescr ruleDescr = pkgDescr.getRules().get(0);
        final KnowledgeBuilderImpl pkgBuilder = new KnowledgeBuilderImpl(pkg);
        DialectCompiletimeRegistry dialectRegistry = pkgBuilder.getPackageRegistry(pkg.getName()).getDialectCompiletimeRegistry();
        Dialect dialect = dialectRegistry.getDialect("mvel");
        RuleBuildContext context = new RuleBuildContext(pkgBuilder, ruleDescr, dialectRegistry, pkg, dialect);
        RuleBuilder.build(context);
        assertTrue(context.getErrors().toString(), context.getErrors().isEmpty());
        final RuleImpl rule = context.getRule();
        MVELConsequence mvelCons = (MVELConsequence) rule.getConsequence();
        mvelCons.compile((MVELDialectRuntimeData) pkgBuilder.getPackageRegistry(pkg.getName()).getDialectRuntimeRegistry().getDialectData("mvel"));
        String s = DebugTools.decompile(mvelCons.getCompExpr());
        int fromIndex = 0;
        int count = 0;
        while ((fromIndex = s.indexOf("DEBUG_SYMBOL", fromIndex + 1)) > -1) {
            count++;
        }
        assertEquals(4, count);
    } finally {
        MVELDebugHandler.setDebugMode(false);
    }
}