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

Example 1 with FromDescr

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

the class XmlPackageReaderTest method testParseFrom.

@Test
public void testParseFrom() throws Exception {
    final XmlPackageReader xmlPackageReader = getXmReader();
    xmlPackageReader.read(new InputStreamReader(getClass().getResourceAsStream("test_ParseFrom.xml")));
    final PackageDescr packageDescr = xmlPackageReader.getPackageDescr();
    assertNotNull(packageDescr);
    RuleDescr obj = (RuleDescr) packageDescr.getRules().get(0);
    PatternDescr patterndescr = (PatternDescr) obj.getLhs().getDescrs().get(0);
    FromDescr from = (FromDescr) patterndescr.getSource();
    MVELExprDescr accessordescriptor = (MVELExprDescr) from.getDataSource();
    assertEquals("cheesery.getCheeses(i+4)", accessordescriptor.getExpression());
    assertEquals(patterndescr.getObjectType(), "Cheese");
    assertEquals(patterndescr.getIdentifier(), "cheese");
}

Example 2 with FromDescr

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

the class RuleParserTest method testSimpleMethodCallWithFrom.

@Test
public void testSimpleMethodCallWithFrom() throws Exception {
    final RuleDescr rule = (RuleDescr) parseResource("rule", "test_SimpleMethodCallWithFrom.drl");
    assertFalse(parser.getErrors().toString(), parser.hasErrors());
    final PatternDescr pattern = (PatternDescr) rule.getLhs().getDescrs().get(0);
    final FromDescr from = (FromDescr) pattern.getSource();
    final MVELExprDescr method = (MVELExprDescr) from.getDataSource();
    assertEquals("something.doIt( foo,bar,42,\"hello\",[ a : \"b\", \"something\" : 42, \"a\" : foo, x : [x:y]],\"end\", [a, \"b\", 42] )", method.getExpression());
}

Example 3 with FromDescr

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

the class RuleParserTest method testFromWithInlineListIndex.

@Test
public void testFromWithInlineListIndex() throws Exception {
    String source = "rule XYZ \n" + " when \n" + " o: Order( ) \n" + " Number( ) from [1, 2, 3][1] \n" + " then \n" + " System.err.println(\"Invalid customer id found!\"); \n" + " o.addError(\"Invalid customer id\"); \n" + "end \n";
    PackageDescr pkg = (PackageDescr) parse("compilationUnit", source);
    assertFalse(parser.getErrors().toString(), parser.hasErrors());
    RuleDescr rule = (RuleDescr) pkg.getRules().get(0);
    assertEquals("XYZ", rule.getName());
    assertFalse(parser.hasErrors());
    PatternDescr number = (PatternDescr) rule.getLhs().getDescrs().get(1);
    assertEquals("[1, 2, 3][1]", ((FromDescr) number.getSource()).getDataSource().toString());
}

Example 4 with FromDescr

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

the class RuleParserTest method testForallWithFrom.

@Test
public void testForallWithFrom() throws Exception {
    final PackageDescr pkg = (PackageDescr) parseResource("compilationUnit", "forallwithfrom.drl");
    assertEquals(1, pkg.getRules().size());
    final RuleDescr rule = (RuleDescr) pkg.getRules().get(0);
    assertEquals(1, rule.getLhs().getDescrs().size());
    final ForallDescr forall = (ForallDescr) rule.getLhs().getDescrs().get(0);
    assertEquals(2, forall.getDescrs().size());
    final PatternDescr pattern = forall.getBasePattern();
    assertEquals("Person", pattern.getObjectType());
    assertEquals("$village", ((FromDescr) pattern.getSource()).getDataSource().toString());
    final List<BaseDescr> remaining = forall.getRemainingPatterns();
    assertEquals(1, remaining.size());
    final PatternDescr cheese = (PatternDescr) remaining.get(0);
    assertEquals("Cheese", cheese.getObjectType());
    assertEquals("$cheesery", ((FromDescr) cheese.getSource()).getDataSource().toString());
}

Example 5 with FromDescr

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

the class RuleParserTest method testFromWithInlineList.

@Test
public void testFromWithInlineList() throws Exception {
    String source = "rule XYZ \n" + " when \n" + " o: Order( ) \n" + " not( Number( ) from [1, 2, 3] ) \n" + " then \n" + " System.err.println(\"Invalid customer id found!\"); \n" + " o.addError(\"Invalid customer id\"); \n" + "end \n";
    PackageDescr pkg = (PackageDescr) parse("compilationUnit", source);
    assertFalse(parser.getErrors().toString(), parser.hasErrors());
    RuleDescr rule = (RuleDescr) pkg.getRules().get(0);
    assertEquals("XYZ", rule.getName());
    PatternDescr number = (PatternDescr) ((NotDescr) rule.getLhs().getDescrs().get(1)).getDescrs().get(0);
    assertEquals("[1, 2, 3]", ((FromDescr) number.getSource()).getDataSource().toString());
}