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

Example 26 with PackageDescr

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

the class RuleParserTest method testAndOrRules.

/**
 * Test that explicit "&&", "||" works as expected
 */
@Test
public void testAndOrRules() throws Exception {
    final PackageDescr pkg = (PackageDescr) parseResource("compilationUnit", "and_or_rule.drl");
    assertNotNull(pkg);
    assertEquals(1, pkg.getRules().size());
    final RuleDescr rule = (RuleDescr) pkg.getRules().get(0);
    assertEquals("simple_rule", rule.getName());
    // we will have 3 children under the main And node
    final AndDescr and = rule.getLhs();
    assertEquals(3, and.getDescrs().size());
    PatternDescr left = (PatternDescr) and.getDescrs().get(0);
    PatternDescr right = (PatternDescr) and.getDescrs().get(1);
    assertEquals("Person", left.getObjectType());
    assertEquals("Cheese", right.getObjectType());
    assertEquals(1, left.getConstraint().getDescrs().size());
    ExprConstraintDescr fld = (ExprConstraintDescr) left.getConstraint().getDescrs().get(0);
    assertEquals("name == \"mark\"", fld.getExpression());
    assertEquals(1, right.getConstraint().getDescrs().size());
    fld = (ExprConstraintDescr) right.getConstraint().getDescrs().get(0);
    assertEquals("type == \"stilton\"", fld.getExpression());
    // now the "||" part
    final OrDescr or = (OrDescr) and.getDescrs().get(2);
    assertEquals(2, or.getDescrs().size());
    left = (PatternDescr) or.getDescrs().get(0);
    right = (PatternDescr) or.getDescrs().get(1);
    assertEquals("Person", left.getObjectType());
    assertEquals("Cheese", right.getObjectType());
    assertEquals(1, left.getConstraint().getDescrs().size());
    fld = (ExprConstraintDescr) left.getConstraint().getDescrs().get(0);
    assertEquals("name == \"mark\"", fld.getExpression());
    assertEquals(1, right.getConstraint().getDescrs().size());
    fld = (ExprConstraintDescr) right.getConstraint().getDescrs().get(0);
    assertEquals("type == \"stilton\"", fld.getExpression());
    assertEqualsIgnoreWhitespace("System.out.println( \"Mark and Michael\" );", (String) rule.getConsequence());
}

Example 27 with PackageDescr

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

the class RuleParserTest method testRuleOldSyntax1.

@Test
public void testRuleOldSyntax1() throws Exception {
    final String source = "rule \"Test\" when ( not $r :LiteralRestriction( operator == Operator.EQUAL ) ) then end";
    PackageDescr pkg = (PackageDescr) parse("compilationUnit", source);
    assertFalse(parser.getErrors().toString(), parser.hasErrors());
    RuleDescr rule = (RuleDescr) pkg.getRules().get(0);
    assertEquals("Test", rule.getName());
    assertEquals(1, rule.getLhs().getDescrs().size());
    assertEquals(1, ((NotDescr) rule.getLhs().getDescrs().get(0)).getDescrs().size());
    NotDescr notDescr = (NotDescr) rule.getLhs().getDescrs().get(0);
    PatternDescr patternDescr = (PatternDescr) notDescr.getDescrs().get(0);
    assertEquals("$r", patternDescr.getIdentifier());
    assertEquals(1, patternDescr.getDescrs().size());
    ExprConstraintDescr fieldConstraintDescr = (ExprConstraintDescr) patternDescr.getDescrs().get(0);
    assertEquals("operator == Operator.EQUAL", fieldConstraintDescr.getExpression());
}

Example 28 with PackageDescr

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

the class RuleParserTest method testRuleExtends.

@Test
public void testRuleExtends() throws Exception {
    final PackageDescr pkg = (PackageDescr) parseResource("compilationUnit", "Rule_with_Extends.drl");
    assertFalse(parser.getErrors().toString(), parser.hasErrors());
    RuleDescr rule = pkg.getRules().get(0);
    assertTrue(rule.getParentName() != null);
    assertEquals("rule1", rule.getParentName());
    AndDescr lhs = rule.getLhs();
    assertNotNull(lhs);
    assertEquals(1, lhs.getDescrs().size());
    PatternDescr pattern = (PatternDescr) lhs.getDescrs().get(0);
    assertEquals("foo", pattern.getObjectType());
    assertEquals("$foo", pattern.getIdentifier());
}

Example 29 with PackageDescr

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

the class RuleParserTest method testOrCE.

@Test
public void testOrCE() throws Exception {
    final PackageDescr pkg = (PackageDescr) parseResource("compilationUnit", "or_ce.drl");
    assertEquals(1, pkg.getRules().size());
    final RuleDescr rule = (RuleDescr) pkg.getRules().get(0);
    assertEquals(2, rule.getLhs().getDescrs().size());
    final PatternDescr person = (PatternDescr) rule.getLhs().getDescrs().get(0);
    assertEquals("Person", person.getObjectType());
    assertEquals("$p", person.getIdentifier());
    final OrDescr or = (OrDescr) rule.getLhs().getDescrs().get(1);
    assertEquals(2, or.getDescrs().size());
    final PatternDescr cheese1 = (PatternDescr) or.getDescrs().get(0);
    assertEquals("Cheese", cheese1.getObjectType());
    assertEquals("$c", cheese1.getIdentifier());
    final PatternDescr cheese2 = (PatternDescr) or.getDescrs().get(1);
    assertEquals("Cheese", cheese2.getObjectType());
    assertNull(cheese2.getIdentifier());
}

Example 30 with PackageDescr

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

the class RuleParserTest method testQualifiedClassname.

@Test
public void testQualifiedClassname() throws Exception {
    final PackageDescr pkg = (PackageDescr) parseResource("compilationUnit", "qualified_classname.drl");
    final RuleDescr rule = (RuleDescr) pkg.getRules().get(0);
    final PatternDescr p = (PatternDescr) rule.getLhs().getDescrs().get(0);
    assertEquals("com.cheeseco.Cheese", p.getObjectType());
}