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Example 16 with InternalKnowledgePackage

use of org.drools.core.definitions.InternalKnowledgePackage 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());
}
Also used : ClassObjectType(org.drools.core.base.ClassObjectType) HashMap(java.util.HashMap) GroupElement(org.drools.core.rule.GroupElement) Cheese(org.drools.compiler.Cheese) MVELConsequence(org.drools.core.base.mvel.MVELConsequence) AgendaItem(org.drools.core.common.AgendaItem) ClassObjectType(org.drools.core.base.ClassObjectType) ObjectType(org.drools.core.spi.ObjectType) LeftTupleImpl(org.drools.core.reteoo.LeftTupleImpl) AgendaItemImpl(org.drools.core.common.AgendaItemImpl) Declaration(org.drools.core.rule.Declaration) ImportDeclaration(org.drools.core.rule.ImportDeclaration) PackageDescr(org.drools.compiler.lang.descr.PackageDescr) InternalFactHandle(org.drools.core.common.InternalFactHandle) InternalKnowledgeBase(org.drools.core.impl.InternalKnowledgeBase) RuleTerminalNode(org.drools.core.reteoo.RuleTerminalNode) Pattern(org.drools.core.rule.Pattern) PropagationContextFactory(org.drools.core.common.PropagationContextFactory) RuleBuildContext(org.drools.compiler.rule.builder.RuleBuildContext) DialectCompiletimeRegistry(org.drools.compiler.compiler.DialectCompiletimeRegistry) DefaultKnowledgeHelper(org.drools.core.base.DefaultKnowledgeHelper) BuildContext(org.drools.core.reteoo.builder.BuildContext) RuleBuildContext(org.drools.compiler.rule.builder.RuleBuildContext) KnowledgeBuilderImpl(org.drools.compiler.builder.impl.KnowledgeBuilderImpl) StatefulKnowledgeSessionImpl(org.drools.core.impl.StatefulKnowledgeSessionImpl) RuleDescr(org.drools.compiler.lang.descr.RuleDescr) InternalKnowledgePackage(org.drools.core.definitions.InternalKnowledgePackage) CompositeObjectSinkAdapterTest(org.drools.core.reteoo.CompositeObjectSinkAdapterTest) Test(org.junit.Test)

Example 17 with InternalKnowledgePackage

use of org.drools.core.definitions.InternalKnowledgePackage 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());
}
Also used : ClassObjectType(org.drools.core.base.ClassObjectType) KnowledgeBuilderConfigurationImpl(org.drools.compiler.builder.impl.KnowledgeBuilderConfigurationImpl) HashMap(java.util.HashMap) Cheese(org.drools.compiler.Cheese) MVELConsequence(org.drools.core.base.mvel.MVELConsequence) Properties(java.util.Properties) AgendaItem(org.drools.core.common.AgendaItem) ClassObjectType(org.drools.core.base.ClassObjectType) ObjectType(org.drools.core.spi.ObjectType) LeftTupleImpl(org.drools.core.reteoo.LeftTupleImpl) AgendaItemImpl(org.drools.core.common.AgendaItemImpl) Declaration(org.drools.core.rule.Declaration) ImportDeclaration(org.drools.core.rule.ImportDeclaration) InternalFactHandle(org.drools.core.common.InternalFactHandle) InternalKnowledgeBase(org.drools.core.impl.InternalKnowledgeBase) Pattern(org.drools.core.rule.Pattern) RuleBuildContext(org.drools.compiler.rule.builder.RuleBuildContext) DialectCompiletimeRegistry(org.drools.compiler.compiler.DialectCompiletimeRegistry) DefaultKnowledgeHelper(org.drools.core.base.DefaultKnowledgeHelper) PatternExtractor(org.drools.core.spi.PatternExtractor) DroolsParserException(org.drools.compiler.compiler.DroolsParserException) PackageRegistry(org.drools.compiler.compiler.PackageRegistry) KnowledgeBuilderImpl(org.drools.compiler.builder.impl.KnowledgeBuilderImpl) StatefulKnowledgeSessionImpl(org.drools.core.impl.StatefulKnowledgeSessionImpl) RuleDescr(org.drools.compiler.lang.descr.RuleDescr) KnowledgePackageImpl(org.drools.core.definitions.impl.KnowledgePackageImpl) InternalKnowledgePackage(org.drools.core.definitions.InternalKnowledgePackage) CompositeObjectSinkAdapterTest(org.drools.core.reteoo.CompositeObjectSinkAdapterTest) Test(org.junit.Test)

Example 18 with InternalKnowledgePackage

use of org.drools.core.definitions.InternalKnowledgePackage 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);
    }
}
Also used : InputStreamReader(java.io.InputStreamReader) RuleBuildContext(org.drools.compiler.rule.builder.RuleBuildContext) DialectCompiletimeRegistry(org.drools.compiler.compiler.DialectCompiletimeRegistry) RuleImpl(org.drools.core.definitions.rule.impl.RuleImpl) MVELConsequence(org.drools.core.base.mvel.MVELConsequence) KnowledgeBuilderImpl(org.drools.compiler.builder.impl.KnowledgeBuilderImpl) RuleDescr(org.drools.compiler.lang.descr.RuleDescr) Dialect(org.drools.compiler.compiler.Dialect) DrlParser(org.drools.compiler.compiler.DrlParser) PackageDescr(org.drools.compiler.lang.descr.PackageDescr) KnowledgePackageImpl(org.drools.core.definitions.impl.KnowledgePackageImpl) InternalKnowledgePackage(org.drools.core.definitions.InternalKnowledgePackage) CompositeObjectSinkAdapterTest(org.drools.core.reteoo.CompositeObjectSinkAdapterTest) Test(org.junit.Test)

Example 19 with InternalKnowledgePackage

use of org.drools.core.definitions.InternalKnowledgePackage in project drools by kiegroup.

the class MVELDebugTest method testDebug.

@Test
public void testDebug() throws Exception {
    String rule = "package com.sample; dialect \"mvel\" rule myRule when then\n System.out.println( \"test\" ); end";
    KnowledgeBuilderImpl builder = new KnowledgeBuilderImpl();
    DrlParser parser = new DrlParser(LanguageLevelOption.DRL5);
    PackageDescr packageDescr = parser.parse(null, rule);
    RuleDescr ruleDescr = packageDescr.getRules().get(0);
    builder = new KnowledgeBuilderImpl();
    builder.addPackage(packageDescr);
    InternalKnowledgePackage pkg = builder.getPackage("com.sample");
    MVELConsequence consequence = (MVELConsequence) pkg.getRule("myRule").getConsequence();
    String sourceName = ((CompiledExpression) consequence.getCompExpr()).getSourceName();
    System.out.println(sourceName);
    String ruleName = ruleDescr.getNamespace() + "." + ruleDescr.getClassName();
    System.out.println(ruleName);
    assertEquals(sourceName, ruleName);
}
Also used : KnowledgeBuilderImpl(org.drools.compiler.builder.impl.KnowledgeBuilderImpl) RuleDescr(org.drools.compiler.lang.descr.RuleDescr) DrlParser(org.drools.compiler.compiler.DrlParser) MVELConsequence(org.drools.core.base.mvel.MVELConsequence) PackageDescr(org.drools.compiler.lang.descr.PackageDescr) CompiledExpression(org.mvel2.compiler.CompiledExpression) InternalKnowledgePackage(org.drools.core.definitions.InternalKnowledgePackage) Test(org.junit.Test)

Example 20 with InternalKnowledgePackage

use of org.drools.core.definitions.InternalKnowledgePackage 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));
}
Also used : ClassObjectType(org.drools.core.base.ClassObjectType) KnowledgeBuilderConfigurationImpl(org.drools.compiler.builder.impl.KnowledgeBuilderConfigurationImpl) HashMap(java.util.HashMap) MockLeftTupleSink(org.drools.compiler.reteoo.MockLeftTupleSink) Cheese(org.drools.compiler.Cheese) EvalCondition(org.drools.core.rule.EvalCondition) EvalDescr(org.drools.compiler.lang.descr.EvalDescr) InternalReadAccessor(org.drools.core.spi.InternalReadAccessor) LeftTupleImpl(org.drools.core.reteoo.LeftTupleImpl) Declaration(org.drools.core.rule.Declaration) InternalFactHandle(org.drools.core.common.InternalFactHandle) InternalKnowledgeBase(org.drools.core.impl.InternalKnowledgeBase) Pattern(org.drools.core.rule.Pattern) RuleBuildContext(org.drools.compiler.rule.builder.RuleBuildContext) DialectCompiletimeRegistry(org.drools.compiler.compiler.DialectCompiletimeRegistry) MVELEvalExpression(org.drools.core.base.mvel.MVELEvalExpression) KnowledgeBuilderImpl(org.drools.compiler.builder.impl.KnowledgeBuilderImpl) StatefulKnowledgeSessionImpl(org.drools.core.impl.StatefulKnowledgeSessionImpl) RuleDescr(org.drools.compiler.lang.descr.RuleDescr) KnowledgePackageImpl(org.drools.core.definitions.impl.KnowledgePackageImpl) HashMap(java.util.HashMap) Map(java.util.Map) InternalKnowledgePackage(org.drools.core.definitions.InternalKnowledgePackage) Test(org.junit.Test)

Aggregations

InternalKnowledgePackage (org.drools.core.definitions.InternalKnowledgePackage)97 Test (org.junit.Test)32 RuleImpl (org.drools.core.definitions.rule.impl.RuleImpl)28 KnowledgePackageImpl (org.drools.core.definitions.impl.KnowledgePackageImpl)26 RuleDescr (org.drools.compiler.lang.descr.RuleDescr)24 KnowledgeBuilderImpl (org.drools.compiler.builder.impl.KnowledgeBuilderImpl)21 PackageDescr (org.drools.compiler.lang.descr.PackageDescr)20 PackageRegistry (org.drools.compiler.compiler.PackageRegistry)16 DialectCompiletimeRegistry (org.drools.compiler.compiler.DialectCompiletimeRegistry)14 InternalKnowledgeBase (org.drools.core.impl.InternalKnowledgeBase)13 TypeDeclaration (org.drools.core.rule.TypeDeclaration)13 HashMap (java.util.HashMap)12 Pattern (org.drools.core.rule.Pattern)12 RuleBuildContext (org.drools.compiler.rule.builder.RuleBuildContext)11 CompositeObjectSinkAdapterTest (org.drools.core.reteoo.CompositeObjectSinkAdapterTest)11 MVELDialectRuntimeData (org.drools.core.rule.MVELDialectRuntimeData)11 ClassObjectType (org.drools.core.base.ClassObjectType)10 ArrayList (java.util.ArrayList)9 KnowledgeBuilderConfigurationImpl (org.drools.compiler.builder.impl.KnowledgeBuilderConfigurationImpl)9 ResourceTypePackage (org.kie.api.internal.io.ResourceTypePackage)8