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

Example 11 with ConstraintConnectiveDescr

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

the class DescrDumperTest method testDumpExcludes.

@Test
public void testDumpExcludes() throws Exception {
    String input = "list excludes \"b\"";
    String expected = "!( list contains \"b\" )";
    ConstraintConnectiveDescr descr = parse(input);
    String result = dumper.dump(descr);
    assertEquals(expected, result);
}

Example 12 with ConstraintConnectiveDescr

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

the class DescrDumperTest method testDumpContains.

@Test
public void testDumpContains() throws Exception {
    String input = "list contains \"b\"";
    String expected = "list contains \"b\"";
    ConstraintConnectiveDescr descr = parse(input);
    String result = dumper.dump(descr);
    assertEquals(expected, result);
}

Example 13 with ConstraintConnectiveDescr

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

the class DescrDumperTest method testDumpBindings2.

@Test
public void testDumpBindings2() throws Exception {
    String input = "( $a : a > $b : b[10].prop || 10 != 20 ) && $x : someMethod(10) == 20";
    String expected = "( a > b[10].prop || 10 != 20 ) && someMethod(10) == 20";
    ConstraintConnectiveDescr descr = parse(input);
    DumperContext ctx = new DumperContext();
    String result = dumper.dump(descr, ctx);
    assertEquals(expected, result);
    assertEquals(3, ctx.getBindings().size());
    BindingDescr bind = ctx.getBindings().get(0);
    assertEquals("$a", bind.getVariable());
    assertEquals("a", bind.getExpression());
    bind = ctx.getBindings().get(1);
    assertEquals("$b", bind.getVariable());
    assertEquals("b[10].prop", bind.getExpression());
    bind = ctx.getBindings().get(2);
    assertEquals("$x", bind.getVariable());
    assertEquals("someMethod(10)", bind.getExpression());
}

Example 14 with ConstraintConnectiveDescr

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

the class DescrDumperTest method parse.

public ConstraintConnectiveDescr parse(final String constraint) {
    DrlExprParser parser = new DrlExprParser(LanguageLevelOption.DRL6);
    ConstraintConnectiveDescr result = parser.parse(constraint);
    assertFalse(parser.getErrors().toString(), parser.hasErrors());
    return result;
}

Example 15 with ConstraintConnectiveDescr

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

the class PatternBuilder method rewriteCompositeExpressions.

private String rewriteCompositeExpressions(RuleBuildContext context, Pattern pattern, ConstraintConnectiveDescr d) {
    int i = 0;
    StringBuilder sb = new StringBuilder();
    for (BaseDescr subDescr : d.getDescrs()) {
        if (subDescr instanceof BindingDescr) {
            continue;
        }
        if (i++ > 0) {
            sb.append(" ").append(d.getConnective().getConnective()).append(" ");
        }
        String normalizedExpr;
        if (subDescr instanceof RelationalExprDescr && isSimpleExpr((RelationalExprDescr) subDescr)) {
            RelationalExprDescr relDescr = (RelationalExprDescr) subDescr;
            if (relDescr.getExpression() != null) {
                normalizedExpr = normalizeExpression(context, pattern, relDescr, relDescr.getExpression());
            } else {
                i--;
                normalizedExpr = "";
            }
        } else if (subDescr instanceof ConstraintConnectiveDescr) {
            String rewrittenExpr = rewriteCompositeExpressions(context, pattern, (ConstraintConnectiveDescr) subDescr);
            if (rewrittenExpr == null) {
                return null;
            }
            normalizedExpr = "(" + rewrittenExpr + ")";
        } else if (subDescr instanceof AtomicExprDescr) {
            normalizedExpr = ((AtomicExprDescr) subDescr).getRewrittenExpression();
        } else {
            return null;
        }
        sb.append(normalizedExpr);
    }
    return sb.toString();
}