Examples with EvalDescr org.drools.compiler.lang.descr.EvalDescr used on opensource projects

Example 6 with EvalDescr

use of org.drools.compiler.lang.descr.EvalDescr in project drools by kiegroup.

the class KnowledgeBuilderTest method testEval.

@Test
public void testEval() throws Exception {
    final KnowledgeBuilderImpl builder = new KnowledgeBuilderImpl();
    final PackageDescr packageDescr = new PackageDescr("p1");
    final RuleDescr ruleDescr = new RuleDescr("rule-1");
    packageDescr.addRule(ruleDescr);
    final AndDescr lhs = new AndDescr();
    ruleDescr.setLhs(lhs);
    final PatternDescr pattern = new PatternDescr(Cheese.class.getName(), "stilton");
    lhs.addDescr(pattern);
    BindingDescr fieldBindingDescr = new BindingDescr("x", "price");
    pattern.addConstraint(fieldBindingDescr);
    fieldBindingDescr = new BindingDescr("y", "price");
    pattern.addConstraint(fieldBindingDescr);
    packageDescr.addGlobal(new GlobalDescr("map", "java.util.Map"));
    final EvalDescr evalDescr = new EvalDescr("( ( Integer )map.get( new Integer(x) ) ).intValue() == y");
    lhs.addDescr(evalDescr);
    ruleDescr.setConsequence("update(stilton);");
    builder.addPackage(packageDescr);
    assertLength(0, builder.getErrors().getErrors());
    InternalKnowledgePackage pkg = builder.getPackage(packageDescr.getName());
    final RuleImpl rule = pkg.getRule("rule-1");
    final EvalCondition eval = (EvalCondition) rule.getLhs().getChildren().get(1);
    final CompiledInvoker invoker = (CompiledInvoker) eval.getEvalExpression();
    final List list = invoker.getMethodBytecode();
}

Example 7 with EvalDescr

use of org.drools.compiler.lang.descr.EvalDescr in project drools by kiegroup.

the class KnowledgeBuilderTest method createEvalRule.

private void createEvalRule(final PackageDescr packageDescr, final String expression) {
    final RuleDescr ruleDescr = new RuleDescr("rule-1");
    packageDescr.addRule(ruleDescr);
    final AndDescr lhs = new AndDescr();
    ruleDescr.setLhs(lhs);
    packageDescr.addGlobal(new GlobalDescr("map", "java.util.Map"));
    final EvalDescr evalDescr = new EvalDescr(expression);
    lhs.addDescr(evalDescr);
    ruleDescr.setConsequence("");
}

Example 8 with EvalDescr

use of org.drools.compiler.lang.descr.EvalDescr in project drools by kiegroup.

the class PackageBuilderConfigurationTest method testMockDialect.

@Test
public void testMockDialect() {
    InternalKnowledgePackage pkg = new KnowledgePackageImpl("org.pkg1");
    KnowledgeBuilderConfigurationImpl cfg1 = new KnowledgeBuilderConfigurationImpl();
    MockDialectConfiguration mockConf = new MockDialectConfiguration();
    // cfg1.buildDialectRegistry().addDialect( "mock",
    // mockConf.getDialect() );
    cfg1.addDialect("mock", mockConf);
    cfg1.setDefaultDialect("mock");
    KnowledgeBuilderImpl builder = new KnowledgeBuilderImpl(pkg, cfg1);
    PackageRegistry pkgRegistry = builder.getPackageRegistry(pkg.getName());
    DialectCompiletimeRegistry dialectRegistry = pkgRegistry.getDialectCompiletimeRegistry();
    MockDialect mockDialect2 = (MockDialect) dialectRegistry.getDialect(cfg1.getDefaultDialect());
    assertSame(pkg, mockDialect2.getPkg());
    assertNull(mockDialect2.getRuleDescr());
    RuleDescr ruleDescr = new RuleDescr("test rule");
    ruleDescr.addAttribute(new AttributeDescr("dialect", "mock"));
    ruleDescr.setLhs(new AndDescr());
    EvalDescr evalDescr = new EvalDescr();
    ruleDescr.getLhs().addDescr(evalDescr);
    PackageDescr pkgDescr = new PackageDescr("org.pkg1");
    pkgDescr.addImport(new ImportDescr("java.util.HashMap"));
    FunctionImportDescr functionImportDescr = new FunctionImportDescr();
    functionImportDescr.setTarget("java.lang.System.currentTimeMillis");
    pkgDescr.addFunctionImport(functionImportDescr);
    pkgDescr.addRule(ruleDescr);
    builder.addPackage(pkgDescr);
    assertSame(ruleDescr, mockDialect2.getRuleDescr());
    assertTrue(mockDialect2.getImport().contains("java.util.HashMap"));
    assertTrue(mockDialect2.getStaticImport().contains("java.lang.System.currentTimeMillis"));
    assertEquals("eval was built", evalDescr.getContent());
    assertEquals("consequence was built", ruleDescr.getConsequence());
    assertTrue(mockDialect2.isCompileAll());
    assertNotNull(pkg.getRule("test rule"));
    // make sure there were no other general errors.
    assertFalse(builder.hasErrors());
}

Example 9 with EvalDescr

use of org.drools.compiler.lang.descr.EvalDescr in project drools by kiegroup.

the class EvalHandler method end.

public Object end(final String uri, final String localName, final ExtensibleXmlParser parser) throws SAXException {
    final Element element = parser.endElementBuilder();
    final EvalDescr evalDescr = (EvalDescr) parser.getCurrent();
    final String expression = ((org.w3c.dom.Text) element.getChildNodes().item(0)).getWholeText();
    emptyContentCheck(localName, expression, parser);
    evalDescr.setContent(expression);
    final ConditionalElementDescr parentDescr = (ConditionalElementDescr) parser.getParent();
    parentDescr.addDescr(evalDescr);
    return evalDescr;
}

Example 10 with EvalDescr

use of org.drools.compiler.lang.descr.EvalDescr in project drools by kiegroup.

the class AbstractASMEvalBuilder method build.

public RuleConditionElement build(RuleBuildContext context, BaseDescr descr, Pattern prefixPattern) {
    if (prefixPattern == null) {
        return build(context, descr);
    }
    EvalDescr evalDescr = (EvalDescr) descr;
    PredicateDescr predicateDescr = new PredicateDescr(context.getRuleDescr().getResource(), evalDescr.getContent());
    AnalysisResult analysis = buildAnalysis(context, prefixPattern, predicateDescr, null);
    Declaration[] declarations = getUsedDeclarations(context, prefixPattern, analysis);
    return buildEval(context, evalDescr, analysis, declarations);
}