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

Example 71 with PatternDescr

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

the class RuleBuilder method getLhsForRuleUnit.

private static AndDescr getLhsForRuleUnit(RuleImpl rule, AndDescr lhs) {
    if (rule.hasRuleUnit()) {
        PatternDescr unitPattern = new PatternDescr(rule.getRuleUnitClassName(), RULE_UNIT_DECLARATION);
        unitPattern.setSource(EntryPointDescr.RULE_UNIT_ENTRY_POINT_DESCR);
        unitPattern.setResource(rule.getResource());
        lhs.getDescrs().add(0, unitPattern);
    }
    return lhs;
}

Example 72 with PatternDescr

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

the class QueryBuilderTest method testQuery.

@Test
public void testQuery() throws Exception {
    final KnowledgeBuilderImpl builder = new KnowledgeBuilderImpl();
    final PackageDescr packageDescr = new PackageDescr("p1");
    final QueryDescr queryDescr = new QueryDescr("query1");
    queryDescr.addParameter("String", "$type");
    packageDescr.addRule(queryDescr);
    final AndDescr lhs = new AndDescr();
    queryDescr.setLhs(lhs);
    final PatternDescr pattern = new PatternDescr(Cheese.class.getName(), "stilton");
    lhs.addDescr(pattern);
    pattern.addConstraint(new ExprConstraintDescr("type == $type"));
    // Another query, no parameters
    QueryDescr queryDescr2 = new QueryDescr("query2");
    packageDescr.addRule(queryDescr2);
    AndDescr lhs2 = new AndDescr();
    queryDescr2.setLhs(lhs2);
    PatternDescr pattern2 = new PatternDescr(Cheese.class.getName());
    lhs2.addDescr(pattern2);
    builder.addPackage(packageDescr);
    assertLength(0, builder.getErrors().getErrors());
    InternalKnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
    kbase.addPackages(Arrays.asList(new KiePackage[] { builder.getPackage(packageDescr.getName()) }));
    final KieSession session = kbase.newKieSession();
    session.insert(new Cheese("stilton", 15));
    QueryResults results = session.getQueryResults("query1", "stilton");
    assertEquals(1, results.size());
    Object object = results.iterator().next().get("stilton");
    assertEquals(new Cheese("stilton", 15), object);
    results = session.getQueryResults("query1", new Object[] { "cheddar" });
    assertEquals(0, results.size());
    session.insert(new Cheese("dolcelatte", 20));
    results = session.getQueryResults("query2", new Object[] {});
    assertEquals(2, results.size());
}

Example 73 with PatternDescr

use of org.drools.compiler.lang.descr.PatternDescr 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 74 with PatternDescr

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

the class XmlPackageReaderTest method testParseExists.

@Test
public void testParseExists() throws Exception {
    final XmlPackageReader xmlPackageReader = getXmReader();
    xmlPackageReader.read(new InputStreamReader(getClass().getResourceAsStream("test_ParseExists.xml")));
    final PackageDescr packageDescr = xmlPackageReader.getPackageDescr();
    assertNotNull(packageDescr);
    RuleDescr obj = (RuleDescr) packageDescr.getRules().get(0);
    Object existdescr = obj.getLhs().getDescrs().get(0);
    assertTrue(existdescr instanceof ExistsDescr);
    Object patternDescriptor = ((ExistsDescr) existdescr).getDescrs().get(0);
    assertTrue(patternDescriptor instanceof PatternDescr);
    assertEquals(((PatternDescr) patternDescriptor).getObjectType(), "Person");
    Object notDescr = obj.getLhs().getDescrs().get(1);
    assertEquals(notDescr.getClass().getName(), NotDescr.class.getName());
    existdescr = ((NotDescr) notDescr).getDescrs().get(0);
    patternDescriptor = ((ExistsDescr) existdescr).getDescrs().get(0);
    assertTrue(patternDescriptor instanceof PatternDescr);
    assertEquals(((PatternDescr) patternDescriptor).getObjectType(), "Cheese");
}

Example 75 with PatternDescr

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

the class XmlPackageReaderTest method testParseForall.

@Test
public void testParseForall() throws Exception {
    final XmlPackageReader xmlPackageReader = getXmReader();
    xmlPackageReader.read(new InputStreamReader(getClass().getResourceAsStream("test_ParseForall.xml")));
    final PackageDescr packageDescr = xmlPackageReader.getPackageDescr();
    assertNotNull(packageDescr);
    RuleDescr obj = (RuleDescr) packageDescr.getRules().get(0);
    ForallDescr forall = (ForallDescr) obj.getLhs().getDescrs().get(0);
    List forallPaterns = forall.getDescrs();
    PatternDescr pattarnState = (PatternDescr) forallPaterns.get(0);
    PatternDescr personState = (PatternDescr) forallPaterns.get(1);
    PatternDescr cheeseState = (PatternDescr) forallPaterns.get(2);
    assertEquals(pattarnState.getObjectType(), "State");
    assertEquals(personState.getObjectType(), "Person");
    assertEquals(cheeseState.getObjectType(), "Cheese");
}