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

Example 11 with AndDescr

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

the class RuleParserTest method testRuleParseLhs3.

@Test
public void testRuleParseLhs3() throws Exception {
    final String text = "rule X when (or\nnot Person()\n(and Cheese()\nMeat()\nWine())) then end";
    AndDescr pattern = ((RuleDescr) parse("rule", text)).getLhs();
    assertEquals(1, pattern.getDescrs().size());
    OrDescr or = (OrDescr) pattern.getDescrs().get(0);
    assertEquals(2, or.getDescrs().size());
    NotDescr not = (NotDescr) or.getDescrs().get(0);
    AndDescr and = (AndDescr) or.getDescrs().get(1);
    assertEquals(1, not.getDescrs().size());
    PatternDescr person = (PatternDescr) not.getDescrs().get(0);
    assertEquals("Person", person.getObjectType());
    assertEquals(3, and.getDescrs().size());
    PatternDescr cheese = (PatternDescr) and.getDescrs().get(0);
    assertEquals("Cheese", cheese.getObjectType());
    PatternDescr meat = (PatternDescr) and.getDescrs().get(1);
    assertEquals("Meat", meat.getObjectType());
    PatternDescr wine = (PatternDescr) and.getDescrs().get(2);
    assertEquals("Wine", wine.getObjectType());
}

Example 12 with AndDescr

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

the class RuleParserTest method testRuleWithLHSNesting.

@Test
public void testRuleWithLHSNesting() throws Exception {
    final PackageDescr pkg = (PackageDescr) parseResource("compilationUnit", "Rule_with_nested_LHS.drl");
    assertFalse(parser.getErrors().toString(), parser.hasErrors());
    RuleDescr rule = pkg.getRules().get(0);
    assertEquals("test", rule.getName());
    AndDescr lhs = rule.getLhs();
    assertNotNull(lhs);
    assertEquals(2, lhs.getDescrs().size());
    PatternDescr a = (PatternDescr) lhs.getDescrs().get(0);
    assertEquals("A", a.getObjectType());
    OrDescr or = (OrDescr) lhs.getDescrs().get(1);
    assertEquals(3, or.getDescrs().size());
    AndDescr and1 = (AndDescr) or.getDescrs().get(0);
    assertEquals(2, and1.getDescrs().size());
    PatternDescr b = (PatternDescr) and1.getDescrs().get(0);
    PatternDescr c = (PatternDescr) and1.getDescrs().get(1);
    assertEquals("B", b.getObjectType());
    assertEquals("C", c.getObjectType());
    AndDescr and2 = (AndDescr) or.getDescrs().get(1);
    assertEquals(2, and2.getDescrs().size());
    PatternDescr d = (PatternDescr) and2.getDescrs().get(0);
    PatternDescr e = (PatternDescr) and2.getDescrs().get(1);
    assertEquals("D", d.getObjectType());
    assertEquals("E", e.getObjectType());
    AndDescr and3 = (AndDescr) or.getDescrs().get(2);
    assertEquals(2, and3.getDescrs().size());
    PatternDescr f = (PatternDescr) and3.getDescrs().get(0);
    PatternDescr g = (PatternDescr) and3.getDescrs().get(1);
    assertEquals("F", f.getObjectType());
    assertEquals("G", g.getObjectType());
}

Example 13 with AndDescr

use of org.drools.compiler.lang.descr.AndDescr 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 14 with AndDescr

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

the class RuleParserTest method testLhsSemicolonDelim.

@Test
public void testLhsSemicolonDelim() throws Exception {
    final RuleDescr rule = (RuleDescr) parseResource("rule", "lhs_semicolon_delim.drl");
    assertFalse(parser.getErrors().toString(), parser.hasErrors());
    assertNotNull(rule);
    assertEquals("simple_rule", rule.getName());
    final AndDescr lhs = rule.getLhs();
    assertNotNull(lhs);
    assertEquals(3, lhs.getDescrs().size());
    // System.err.println( lhs.getDescrs() );
    // Check first pattern
    final PatternDescr first = (PatternDescr) lhs.getDescrs().get(0);
    assertEquals("foo3", first.getIdentifier());
    assertEquals("Bar", first.getObjectType());
    assertEquals(1, first.getConstraint().getDescrs().size());
    // LiteralDescr constraint = (LiteralDescr) first.getDescrs().get( 0 );
    AndDescr and = (AndDescr) first.getConstraint();
    ExprConstraintDescr fld = (ExprConstraintDescr) and.getDescrs().get(0);
    assertNotNull(fld);
    assertEquals("a==3", fld.getExpression());
    // Check second pattern
    final PatternDescr second = (PatternDescr) lhs.getDescrs().get(1);
    assertEquals("foo4", second.getIdentifier());
    assertEquals("Bar", second.getObjectType());
    assertEquals(1, second.getDescrs().size());
    final ExprConstraintDescr fieldBindingDescr = (ExprConstraintDescr) second.getDescrs().get(0);
    assertEquals("a4:a==4", fieldBindingDescr.getExpression());
    // Check third pattern
    final PatternDescr third = (PatternDescr) lhs.getDescrs().get(2);
    assertNull(third.getIdentifier());
    assertEquals("Baz", third.getObjectType());
    assertEqualsIgnoreWhitespace("if ( a == b ) { " + "  assert( foo3 );" + "} else {" + "  retract( foo4 );" + "}" + "  System.out.println( a4 );", (String) rule.getConsequence());
}

Example 15 with AndDescr

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

the class RuleParserTest method testWithPredicate.

@Test
public void testWithPredicate() throws Exception {
    final PackageDescr pkg = (PackageDescr) parseResource("compilationUnit", "with_predicate.drl");
    assertEquals(1, pkg.getRules().size());
    final RuleDescr rule = (RuleDescr) pkg.getRules().get(0);
    assertEquals(1, rule.getLhs().getDescrs().size());
    final PatternDescr col = (PatternDescr) rule.getLhs().getDescrs().get(0);
    AndDescr and = (AndDescr) col.getConstraint();
    assertEquals(2, and.getDescrs().size());
    final ExprConstraintDescr field = (ExprConstraintDescr) col.getDescrs().get(0);
    final ExprConstraintDescr pred = (ExprConstraintDescr) and.getDescrs().get(1);
    assertEquals("$age2:age", field.getExpression());
    assertEqualsIgnoreWhitespace("$age2 == $age1+2", pred.getExpression());
}