Examples with RuleDescr org.drools.drl.ast.descr.RuleDescr used on opensource projects

Example 26 with RuleDescr

use of org.drools.drl.ast.descr.RuleDescr in project drools by kiegroup.

the class KnowledgeBuilderTest method createRule.

private RuleImpl createRule(final ConditionalElementDescr ceDescr, final KnowledgeBuilderImpl builder, final String consequence) throws Exception {
    final PackageDescr packageDescr = new PackageDescr("p1");
    final RuleDescr ruleDescr = new RuleDescr("rule-1");
    packageDescr.addRule(ruleDescr);
    final AndDescr lhs = new AndDescr();
    ruleDescr.setLhs(lhs);
    lhs.addDescr((BaseDescr) ceDescr);
    final PatternDescr patternDescr = new PatternDescr(Cheese.class.getName(), "stilton");
    patternDescr.addConstraint(new ExprConstraintDescr("type == \"stilton\" "));
    ceDescr.addDescr(patternDescr);
    ruleDescr.setConsequence(consequence);
    builder.addPackage(packageDescr);
    InternalKnowledgePackage pkg = builder.getPackage(packageDescr.getName());
    final RuleImpl rule = pkg.getRule("rule-1");
    assertEquals("rule-1", rule.getName());
    return rule;
}

Example 27 with RuleDescr

use of org.drools.drl.ast.descr.RuleDescr in project drools by kiegroup.

the class KnowledgeBuilderTest method testNull.

@Test
public void testNull() {
    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 patternDescr = new PatternDescr(Cheese.class.getName(), "stilton");
    final FieldConstraintDescr literalDescr = new FieldConstraintDescr("type");
    literalDescr.addRestriction(new LiteralRestrictionDescr("==", null));
    patternDescr.addConstraint(literalDescr);
    ruleDescr.setConsequence("");
    builder.addPackage(packageDescr);
    InternalKnowledgePackage pkg = builder.getPackage(packageDescr.getName());
    final RuleImpl rule = pkg.getRule("rule-1");
    assertLength(0, builder.getErrors().getErrors());
}

Example 28 with RuleDescr

use of org.drools.drl.ast.descr.RuleDescr 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();
    String s = invoker.getMethodBytecode();
}

Example 29 with RuleDescr

use of org.drools.drl.ast.descr.RuleDescr in project drools by kiegroup.

the class KnowledgeBuilderTest method createBasicPackageWithOneRule.

private PackageDescr createBasicPackageWithOneRule(int line, int col) {
    PackageDescr packageDescr = new PackageDescr("p1");
    RuleDescr ruleDescr = new RuleDescr("rule-1");
    ruleDescr.setLocation(line, col);
    packageDescr.addRule(ruleDescr);
    AndDescr lhs = new AndDescr();
    ruleDescr.setLhs(lhs);
    PatternDescr patternDescr = new PatternDescr(Cheese.class.getName(), "stilton");
    FieldConstraintDescr literalDescr = new FieldConstraintDescr("type");
    literalDescr.addRestriction(new LiteralRestrictionDescr("==", null));
    patternDescr.addConstraint(literalDescr);
    ruleDescr.setConsequence("");
    return packageDescr;
}

Example 30 with RuleDescr

use of org.drools.drl.ast.descr.RuleDescr in project drools by kiegroup.

the class KnowledgeBuilderTest method testLiteral.

@Test
public void testLiteral() 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);
    pattern.addConstraint(new ExprConstraintDescr("type == 'stilton'"));
    ruleDescr.setConsequence("update(stilton);");
    builder.addPackage(packageDescr);
    assertLength(0, builder.getErrors().getErrors());
}