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

Example 36 with AndDescr

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

the class RuleHandler method end.

public Object end(final String uri, final String localName, final ExtensibleXmlParser parser) throws SAXException {
    final Element element = parser.endElementBuilder();
    final RuleDescr ruleDescr = (RuleDescr) parser.getCurrent();
    final AndDescr lhs = ruleDescr.getLhs();
    if (lhs == null) {
        throw new SAXParseException("<rule> requires a LHS", parser.getLocator());
    }
    NodeList list = element.getElementsByTagName("rhs");
    if (list.getLength() == 0) {
        throw new SAXParseException("<rule> requires a <rh> child element", parser.getLocator());
    }
    ruleDescr.setConsequence(((org.w3c.dom.Text) list.item(0).getChildNodes().item(0)).getWholeText());
    NodeList attributes = element.getElementsByTagName("rule-attribute");
    for (int i = 0, length = attributes.getLength(); i < length; i++) {
        final String name = ((Element) attributes.item(i)).getAttribute("name");
        emptyAttributeCheck("rule-attribute", "name", name, parser);
        final String value = ((Element) attributes.item(i)).getAttribute("value");
        ruleDescr.addAttribute(new AttributeDescr(name, value));
    }
    ((PackageDescr) parser.getData()).addRule(ruleDescr);
    return ruleDescr;
}

Example 37 with AndDescr

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

the class XmlPackageReaderTest method testAccumulateMultiPattern.

@Test
public void testAccumulateMultiPattern() 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(1);
    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());
    AndDescr anddescr = (AndDescr) accumulatedescr.getInput();
    List descrlist = anddescr.getDescrs();
    PatternDescr[] listpattern = (PatternDescr[]) descrlist.toArray(new PatternDescr[descrlist.size()]);
    assertEquals(listpattern[0].getObjectType(), "Milk");
    assertEquals(listpattern[1].getObjectType(), "Cup");
}

Example 38 with AndDescr

use of org.drools.compiler.lang.descr.AndDescr 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.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 39 with AndDescr

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

the class XmlPackageReaderTest method testParseSimpleRule.

@Test
public void testParseSimpleRule() throws Exception {
    final XmlPackageReader xmlPackageReader = getXmReader();
    xmlPackageReader.read(new InputStreamReader(getClass().getResourceAsStream("test_SimpleRule1.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.List", ((ImportDescr) imports.get(0)).getTarget());
    assertEquals("org.drools.compiler.Person", ((ImportDescr) imports.get(1)).getTarget());
    RuleDescr ruleDescr = (RuleDescr) packageDescr.getRules().get(0);
    assertEquals("simple_rule1", ruleDescr.getName());
    AndDescr lhs = ruleDescr.getLhs();
    PatternDescr patternDescr = (PatternDescr) lhs.getDescrs().get(0);
    assertEquals("Person", patternDescr.getObjectType());
    ExprConstraintDescr expr = (ExprConstraintDescr) ((AndDescr) patternDescr.getConstraint()).getDescrs().get(0);
    assertEquals("name == \"darth\"", expr.getExpression());
    ruleDescr = (RuleDescr) packageDescr.getRules().get(1);
    assertEquals("simple_rule2", ruleDescr.getName());
    lhs = ruleDescr.getLhs();
    patternDescr = (PatternDescr) lhs.getDescrs().get(0);
    assertEquals("Person", patternDescr.getObjectType());
    expr = (ExprConstraintDescr) ((AndDescr) patternDescr.getConstraint()).getDescrs().get(0);
    assertEquals("age == 35 || == -3.5", expr.getExpression());
    ruleDescr = (RuleDescr) packageDescr.getRules().get(2);
    assertEquals("simple_rule3", ruleDescr.getName());
    lhs = ruleDescr.getLhs();
    patternDescr = (PatternDescr) lhs.getDescrs().get(0);
    assertEquals("Person", patternDescr.getObjectType());
    expr = (ExprConstraintDescr) ((AndDescr) patternDescr.getConstraint()).getDescrs().get(0);
    assertEquals("age == 35 || (!= 7.0 && != -70)", expr.getExpression());
    ruleDescr = (RuleDescr) packageDescr.getRules().get(3);
    assertEquals("simple_rule3", ruleDescr.getName());
    lhs = ruleDescr.getLhs();
    patternDescr = (PatternDescr) lhs.getDescrs().get(1);
    assertEquals("Person", patternDescr.getObjectType());
    expr = (ExprConstraintDescr) ((AndDescr) patternDescr.getConstraint()).getDescrs().get(0);
    assertEquals("name == $s", expr.getExpression());
    ruleDescr = (RuleDescr) packageDescr.getRules().get(4);
    assertEquals("simple_rule4", ruleDescr.getName());
    lhs = ruleDescr.getLhs();
    patternDescr = (PatternDescr) lhs.getDescrs().get(1);
    assertEquals("Person", patternDescr.getObjectType());
    expr = (ExprConstraintDescr) ((AndDescr) patternDescr.getConstraint()).getDescrs().get(0);
    assertEquals("(name == $s) || (age == 35 || (!= 7.0 && != -70))", expr.getExpression());
    ruleDescr = (RuleDescr) packageDescr.getRules().get(5);
    assertEquals("simple_rule5", ruleDescr.getName());
    lhs = ruleDescr.getLhs();
    patternDescr = (PatternDescr) lhs.getDescrs().get(1);
    assertEquals("Person", patternDescr.getObjectType());
    expr = (ExprConstraintDescr) ((AndDescr) patternDescr.getConstraint()).getDescrs().get(0);
    assertEquals("(name == $s) || ((age != 34) && (age != 37) && (name != \"yoda\"))", expr.getExpression());
}

Example 40 with AndDescr

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

the class KnowledgeBuilderTest method testSerializable.

@Test
public void testSerializable() 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);
    packageDescr.addGlobal(new GlobalDescr("map", "java.util.Map"));
    ruleDescr.setConsequence("map.put(\"value\", new Integer(1) );");
    // check that packageDescr is serializable
    final PackageDescr back = (PackageDescr) SerializationHelper.serializeObject(packageDescr);
    assertNotNull(back);
    assertEquals("p1", back.getName());
    builder.addPackage(packageDescr);
    InternalKnowledgePackage pkg = builder.getPackage(packageDescr.getName());
    final RuleImpl rule = pkg.getRule("rule-1");
    assertLength(0, builder.getErrors().getErrors());
    InternalKnowledgePackage newPkg = SerializationHelper.serializeObject(pkg);
    final RuleImpl newRule = newPkg.getRule("rule-1");
    InternalKnowledgeBase kBase = (InternalKnowledgeBase) KnowledgeBaseFactory.newKnowledgeBase();
    // It's been serialised so we have to simulate the re-wiring process
    newPkg.getDialectRuntimeRegistry().onAdd(kBase.getRootClassLoader());
    newPkg.getDialectRuntimeRegistry().onBeforeExecute();
    kBase.getGlobals().put("map", Map.class);
    final KieSession workingMemory = kBase.newKieSession();
    final HashMap map = new HashMap();
    workingMemory.setGlobal("map", map);
    final LeftTupleImpl tuple = new MockTuple(new HashMap());
    tuple.setLeftTupleSink(new RuleTerminalNode(1, new CompositeObjectSinkAdapterTest.MockBetaNode(), newRule, newRule.getLhs(), 0, new BuildContext(kBase)));
    final Activation activation = new MockActivation(newRule, 0, newRule.getLhs(), tuple);
    final DefaultKnowledgeHelper knowledgeHelper = new org.drools.core.base.DefaultKnowledgeHelper(((StatefulKnowledgeSessionImpl) workingMemory));
    knowledgeHelper.setActivation(activation);
    newRule.getConsequence().evaluate(knowledgeHelper, ((StatefulKnowledgeSessionImpl) workingMemory));
    assertEquals(new Integer(1), map.get("value"));
}