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

Example 66 with AndDescr

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

the class AccumulateInlineVisitor method findBoundIdentifier.

private Optional<String> findBoundIdentifier(AccumulateDescr descr, BaseDescr input) {
    BlockStmt actionBlock = parseBlockAddSemicolon(descr.getActionCode());
    Collection<String> allNamesInActionBlock = collectNamesInBlock(actionBlock, context);
    if (allNamesInActionBlock.size() == 1) {
        return Optional.of(allNamesInActionBlock.iterator().next());
    }
    if (input instanceof PatternDescr) {
        return Optional.of(((PatternDescr) input).getIdentifier());
    }
    return ((AndDescr) input).getDescrs().stream().filter(b -> ((PatternDescr) b).getAllBoundIdentifiers().containsAll(allNamesInActionBlock)).findFirst().map(binding -> ((PatternDescr) binding).getIdentifier());
}

Example 67 with AndDescr

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

the class JavaAccumulateBuilder method build.

public RuleConditionElement build(final RuleBuildContext context, final BaseDescr descr, final Pattern prefixPattern) {
    final AccumulateDescr accumDescr = (AccumulateDescr) descr;
    if (!accumDescr.hasValidInput()) {
        return null;
    }
    // build source
    BaseDescr input = accumDescr.getInput();
    if (input instanceof AndDescr && ((AndDescr) input).getDescrs().size() == 1) {
        input = ((AndDescr) input).getDescrs().get(0);
    }
    final RuleConditionBuilder builder = (RuleConditionBuilder) context.getDialect().getBuilder(input.getClass());
    final RuleConditionElement source = builder.build(context, input);
    if (source == null) {
        return null;
    }
    final boolean readLocalsFromTuple = PackageBuilderUtil.isReadLocalsFromTuple(context, accumDescr, source);
    Map<String, Declaration> declsInScope = context.getDeclarationResolver().getDeclarations(context.getRule());
    if (prefixPattern != null && prefixPattern.getDeclaration() != null) {
        declsInScope.remove(prefixPattern.getDeclaration().getIdentifier());
    }
    Map<String, Class<?>> declCls = DeclarationScopeResolver.getDeclarationClasses(declsInScope);
    Accumulate accumulate;
    if (accumDescr.isExternalFunction()) {
        // if it uses 1+ external function, build methods for them
        accumulate = buildExternalFunctionCall(context, accumDescr, source, declsInScope, declCls, readLocalsFromTuple);
    } else {
        // if it uses inline code, build the class for it
        accumulate = buildInlineAccumulate(context, accumDescr, source, declsInScope, declCls, readLocalsFromTuple);
    }
    return accumulate;
}

Example 68 with AndDescr

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

the class RuleBuilderTest method testBuildBigIntegerLiteralConstraint.

@Test
public void testBuildBigIntegerLiteralConstraint() throws Exception {
    final PackageDescr pkgDescr = new PackageDescr("org.drools");
    final RuleDescr ruleDescr = new RuleDescr("Test Rule");
    AndDescr andDescr = new AndDescr();
    PatternDescr patDescr = new PatternDescr("java.math.BigInteger", "$bd");
    ExprConstraintDescr fcd = new ExprConstraintDescr("this==10");
    patDescr.addConstraint(fcd);
    andDescr.addDescr(patDescr);
    ruleDescr.setLhs(andDescr);
    ruleDescr.setConsequence("");
    pkgDescr.addRule(ruleDescr);
    final KnowledgeBuilderImpl kBuilder = new KnowledgeBuilderImpl();
    kBuilder.addPackage(pkgDescr);
    assertTrue(kBuilder.getErrors().toString(), kBuilder.getErrors().isEmpty());
    final RuleImpl rule = kBuilder.getPackages()[0].getRule("Test Rule");
    final GroupElement and = rule.getLhs();
    final Pattern pat = (Pattern) and.getChildren().get(0);
    if (pat.getConstraints().get(0) instanceof MVELConstraint) {
        final MVELConstraint fc = (MVELConstraint) pat.getConstraints().get(0);
        assertTrue("Wrong class. Expected java.math.BigInteger. Found: " + fc.getField().getValue().getClass(), fc.getField().getValue() instanceof BigInteger);
    }
}

Example 69 with AndDescr

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

the class RuleParserTest method testLiteralBoolAndNegativeNumbersRule.

@Test
public void testLiteralBoolAndNegativeNumbersRule() throws Exception {
    final RuleDescr rule = (RuleDescr) parseResource("rule", "literal_bool_and_negative.drl");
    assertFalse(parser.getErrors().toString(), parser.hasErrors());
    assertNotNull(rule);
    assertEquals("simple_rule", rule.getName());
    assertNotNull(rule.getLhs());
    assertEqualsIgnoreWhitespace("cons();", (String) rule.getConsequence());
    final AndDescr lhs = rule.getLhs();
    assertEquals(3, lhs.getDescrs().size());
    PatternDescr pattern = (PatternDescr) lhs.getDescrs().get(0);
    assertEquals(1, pattern.getConstraint().getDescrs().size());
    AndDescr fieldAnd = (AndDescr) pattern.getConstraint();
    ExprConstraintDescr fld = (ExprConstraintDescr) fieldAnd.getDescrs().get(0);
    assertEquals("bar == false", fld.getExpression());
    pattern = (PatternDescr) lhs.getDescrs().get(1);
    assertEquals(1, pattern.getConstraint().getDescrs().size());
    fieldAnd = (AndDescr) pattern.getConstraint();
    fld = (ExprConstraintDescr) fieldAnd.getDescrs().get(0);
    assertEquals("boo > -42", fld.getText());
    pattern = (PatternDescr) lhs.getDescrs().get(2);
    assertEquals(1, pattern.getConstraint().getDescrs().size());
    fieldAnd = (AndDescr) pattern.getConstraint();
    fld = (ExprConstraintDescr) fieldAnd.getDescrs().get(0);
    assertEquals("boo > -42.42", fld.getText());
}

Example 70 with AndDescr

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

the class RuleParserTest method testOrWithSpecialBind.

@Test
public void testOrWithSpecialBind() throws Exception {
    String source = "rule \"A and (B or C or D)\" \n" + "    when \n" + "        pdo1 : ParametricDataObject( paramID == 101, stringValue == \"1000\" ) and \n" + "        pdo2 :(ParametricDataObject( paramID == 101, stringValue == \"1001\" ) or \n" + "               ParametricDataObject( paramID == 101, stringValue == \"1002\" ) or \n" + "               ParametricDataObject( paramID == 101, stringValue == \"1003\" )) \n" + "    then \n" + "        System.out.println( \"Rule: A and (B or C or D) Fired. pdo1: \" + pdo1 +  \" pdo2: \"+ pdo2); \n" + "end\n";
    PackageDescr pkg = (PackageDescr) parse("compilationUnit", source);
    assertFalse(parser.getErrors().toString(), parser.hasErrors());
    RuleDescr rule = pkg.getRules().get(0);
    AndDescr lhs = rule.getLhs();
    assertEquals(2, lhs.getDescrs().size());
    PatternDescr pdo1 = (PatternDescr) lhs.getDescrs().get(0);
    assertEquals("pdo1", pdo1.getIdentifier());
    OrDescr or = (OrDescr) rule.getLhs().getDescrs().get(1);
    assertEquals(3, or.getDescrs().size());
    for (BaseDescr pdo2 : or.getDescrs()) {
        assertEquals("pdo2", ((PatternDescr) pdo2).getIdentifier());
    }
}