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

Example 86 with PatternDescr

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

the class KnowledgeBuilderTest method testErrors.

@Test
public void testErrors() 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"));
    pattern.addConstraint(new ExprConstraintDescr("price == x"));
    // There is no m this should produce errors.
    ruleDescr.setConsequence("update(m);");
    builder.addPackage(packageDescr);
    assertTrue(builder.getErrors().getErrors().length > 0);
}

Example 87 with PatternDescr

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

the class XmlPackageReaderTest method testAccumulate.

@Test
public void testAccumulate() throws Exception {
    final XmlPackageReader xmlPackageReader = getXmReader();
    xmlPackageReader.read(new InputStreamReader(getClass().getResourceAsStream("test_ParseAccumulate.xml")));
    final PackageDescr packageDescr = xmlPackageReader.getPackageDescr();
    assertNotNull(packageDescr);
    RuleDescr obj = (RuleDescr) packageDescr.getRules().get(0);
    Object patternobj = obj.getLhs().getDescrs().get(0);
    assertTrue(patternobj instanceof PatternDescr);
    final PatternDescr patterncheese = (PatternDescr) patternobj;
    assertEquals(patterncheese.getIdentifier(), "cheese");
    assertEquals(patterncheese.getObjectType(), "Cheese");
    AccumulateDescr accumulatedescr = (AccumulateDescr) patterncheese.getSource();
    assertEquals("total += $cheese.getPrice();", accumulatedescr.getActionCode());
    assertEquals("int total = 0;", accumulatedescr.getInitCode());
    assertEquals("new Integer( total ) );", accumulatedescr.getResultCode());
    patternobj = obj.getLhs().getDescrs().get(1);
    assertTrue(patternobj instanceof PatternDescr);
    final PatternDescr patternmax = (PatternDescr) patternobj;
    assertEquals(patternmax.getIdentifier(), "max");
    assertEquals(patternmax.getObjectType(), "Number");
    accumulatedescr = (AccumulateDescr) patternmax.getSource();
    assertTrue(accumulatedescr.isExternalFunction());
    assertEquals("max", accumulatedescr.getFunctions().get(0).getFunction());
    assertNull(accumulatedescr.getInitCode());
    assertNull(accumulatedescr.getActionCode());
    assertNull(accumulatedescr.getResultCode());
    assertNull(accumulatedescr.getReverseCode());
}

Example 88 with PatternDescr

use of org.drools.drl.ast.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");
}

Example 89 with PatternDescr

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

the class XmlPackageReaderTest method testParseQuery.

@Test
public void testParseQuery() throws Exception {
    final XmlPackageReader xmlPackageReader = getXmReader();
    xmlPackageReader.read(new InputStreamReader(getClass().getResourceAsStream("test_ParseQuery.xml")));
    final PackageDescr packageDescr = xmlPackageReader.getPackageDescr();
    assertNotNull(packageDescr);
    assertEquals("com.sample", packageDescr.getName());
    final List imports = packageDescr.getImports();
    assertEquals(2, imports.size());
    assertEquals("java.util.HashMap", ((ImportDescr) imports.get(0)).getTarget());
    assertEquals("org.drools.mvel.compiler.*", ((ImportDescr) imports.get(1)).getTarget());
    final List globals = packageDescr.getGlobals();
    assertEquals(2, globals.size());
    final GlobalDescr x = (GlobalDescr) globals.get(0);
    final GlobalDescr yada = (GlobalDescr) globals.get(1);
    assertEquals("com.sample.X", x.getType());
    assertEquals("x", x.getIdentifier());
    assertEquals("com.sample.Yada", yada.getType());
    assertEquals("yada", yada.getIdentifier());
    final FunctionDescr functionDescr = (FunctionDescr) packageDescr.getFunctions().get(0);
    final List names = functionDescr.getParameterNames();
    assertEquals("foo", names.get(0));
    assertEquals("bada", names.get(1));
    final List types = functionDescr.getParameterTypes();
    assertEquals("Bar", types.get(0));
    assertEquals("Bing", types.get(1));
    assertEquals("System.out.println(\"hello world\");", functionDescr.getText().trim());
    final QueryDescr queryDescr = (QueryDescr) packageDescr.getRules().get(0);
    assertEquals("my query", queryDescr.getName());
    final AndDescr lhs = queryDescr.getLhs();
    assertEquals(1, lhs.getDescrs().size());
    final PatternDescr patternDescr = (PatternDescr) lhs.getDescrs().get(0);
    assertEquals("Foo", patternDescr.getObjectType());
}

Example 90 with PatternDescr

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

the class PatternBuilderForQueryTest 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());
}