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

Example 56 with BaseDescr

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

the class DRL6Parser method lhsOr.

/**
 * lhsOr := LEFT_PAREN OR lhsAnd+ RIGHT_PAREN
 *        | lhsAnd (OR lhsAnd)*
 *
 * @param ce
 * @param allowOr
 * @throws org.antlr.runtime.RecognitionException
 */
private BaseDescr lhsOr(final CEDescrBuilder<?, ?> ce, boolean allowOr) throws RecognitionException {
    BaseDescr result = null;
    if (allowOr && input.LA(1) == DRL6Lexer.LEFT_PAREN && helper.validateLT(2, DroolsSoftKeywords.OR)) {
        // prefixed OR
        CEDescrBuilder<?, OrDescr> or = null;
        if (state.backtracking == 0) {
            or = ce.or();
            result = or.getDescr();
            helper.start(or, CEDescrBuilder.class, null);
        }
        try {
            match(input, DRL6Lexer.LEFT_PAREN, null, null, DroolsEditorType.SYMBOL);
            if (state.failed)
                return null;
            match(input, DRL6Lexer.ID, DroolsSoftKeywords.OR, null, DroolsEditorType.KEYWORD);
            if (state.failed)
                return null;
            while (input.LA(1) == DRL6Lexer.AT) {
                // annotation*
                annotation(or);
                if (state.failed)
                    return null;
            }
            if (state.backtracking == 0) {
                helper.emit(Location.LOCATION_LHS_BEGIN_OF_CONDITION_AND_OR);
            }
            while (input.LA(1) != DRL6Lexer.RIGHT_PAREN) {
                lhsAnd(or, allowOr);
                if (state.failed)
                    return null;
            }
            match(input, DRL6Lexer.RIGHT_PAREN, null, null, DroolsEditorType.SYMBOL);
            if (state.failed)
                return null;
        } finally {
            if (state.backtracking == 0) {
                helper.end(CEDescrBuilder.class, or);
            }
        }
    } else {
        // infix OR
        // create an OR anyway, as if it is not an OR we remove it later
        CEDescrBuilder<?, OrDescr> or = null;
        if (state.backtracking == 0) {
            or = ce.or();
            result = or.getDescr();
            helper.start(or, CEDescrBuilder.class, null);
        }
        try {
            lhsAnd(or, allowOr);
            if (state.failed)
                return null;
            if (allowOr && (helper.validateIdentifierKey(DroolsSoftKeywords.OR) || input.LA(1) == DRL6Lexer.DOUBLE_PIPE)) {
                while (helper.validateIdentifierKey(DroolsSoftKeywords.OR) || input.LA(1) == DRL6Lexer.DOUBLE_PIPE) {
                    if (input.LA(1) == DRL6Lexer.DOUBLE_PIPE) {
                        match(input, DRL6Lexer.DOUBLE_PIPE, null, null, DroolsEditorType.SYMBOL);
                    } else {
                        match(input, DRL6Lexer.ID, DroolsSoftKeywords.OR, null, DroolsEditorType.KEYWORD);
                    }
                    if (state.failed)
                        return null;
                    while (input.LA(1) == DRL6Lexer.AT) {
                        // annotation*
                        annotation(or);
                        if (state.failed)
                            return null;
                    }
                    if (state.backtracking == 0) {
                        helper.emit(Location.LOCATION_LHS_BEGIN_OF_CONDITION_AND_OR);
                    }
                    lhsAnd(or, allowOr);
                    if (state.failed)
                        return null;
                }
            } else if (allowOr) {
                if (state.backtracking == 0) {
                    // if no OR present, then remove it and add children to parent
                    ((ConditionalElementDescr) ce.getDescr()).getDescrs().remove(or.getDescr());
                    for (BaseDescr base : or.getDescr().getDescrs()) {
                        ((ConditionalElementDescr) ce.getDescr()).addDescr(base);
                    }
                    result = ce.getDescr();
                }
            }
        } finally {
            if (state.backtracking == 0) {
                helper.end(CEDescrBuilder.class, or);
            }
        }
    }
    return result;
}

Example 57 with BaseDescr

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

the class DRL6Parser method lhsPatternBind.

/**
 * lhsPatternBind := label?
 *                ( LEFT_PAREN lhsPattern (OR lhsPattern)* RIGHT_PAREN
 *                | lhsPattern )
 *
 * @param ce
 * @return
 * @throws org.antlr.runtime.RecognitionException
 */
@SuppressWarnings("unchecked")
private BaseDescr lhsPatternBind(PatternContainerDescrBuilder<?, ?> ce, final boolean allowOr) throws RecognitionException {
    PatternDescrBuilder<?> pattern = null;
    CEDescrBuilder<?, OrDescr> or = null;
    BaseDescr result = null;
    Token first = input.LT(1);
    pattern = helper.start((DescrBuilder<?, ?>) ce, PatternDescrBuilder.class, null);
    if (pattern != null) {
        result = pattern.getDescr();
    }
    String label = null;
    boolean isUnification = false;
    if (input.LA(1) == DRL6Lexer.ID && input.LA(2) == DRL6Lexer.COLON && !helper.validateCEKeyword(1)) {
        label = label(DroolsEditorType.IDENTIFIER_PATTERN);
        if (state.failed)
            return null;
    } else if (input.LA(1) == DRL6Lexer.ID && input.LA(2) == DRL6Lexer.UNIFY && !helper.validateCEKeyword(1)) {
        label = unif(DroolsEditorType.IDENTIFIER_PATTERN);
        if (state.failed)
            return null;
        isUnification = true;
    }
    if (input.LA(1) == DRL6Lexer.LEFT_PAREN) {
        try {
            match(input, DRL6Lexer.LEFT_PAREN, null, null, DroolsEditorType.SYMBOL);
            if (state.failed)
                return null;
            if (helper.validateCEKeyword(1)) {
                failMismatchedTokenException();
                // in case it is backtracking
                return null;
            }
            lhsPattern(pattern, label, isUnification);
            if (state.failed)
                return null;
            if (allowOr && helper.validateIdentifierKey(DroolsSoftKeywords.OR) && ce instanceof CEDescrBuilder) {
                if (state.backtracking == 0) {
                    // this is necessary because of the crappy bind with multi-pattern OR syntax
                    or = ((CEDescrBuilder<DescrBuilder<?, ?>, OrDescr>) ce).or();
                    result = or.getDescr();
                    helper.end(PatternDescrBuilder.class, pattern);
                    helper.start(or, CEDescrBuilder.class, null);
                    // adjust real or starting token:
                    helper.setStart(or, first);
                    // remove original pattern from the parent CE child list:
                    ((ConditionalElementDescr) ce.getDescr()).getDescrs().remove(pattern.getDescr());
                    // add pattern to the OR instead
                    or.getDescr().addDescr(pattern.getDescr());
                }
                while (helper.validateIdentifierKey(DroolsSoftKeywords.OR)) {
                    match(input, DRL6Lexer.ID, DroolsSoftKeywords.OR, null, DroolsEditorType.KEYWORD);
                    if (state.failed)
                        return null;
                    pattern = helper.start(or, PatternDescrBuilder.class, null);
                    // new pattern, same binding
                    lhsPattern(pattern, label, isUnification);
                    if (state.failed)
                        return null;
                    helper.end(PatternDescrBuilder.class, pattern);
                }
            }
            match(input, DRL6Lexer.RIGHT_PAREN, null, null, DroolsEditorType.SYMBOL);
            if (state.failed)
                return null;
        } finally {
            if (or != null) {
                helper.end(CEDescrBuilder.class, or);
            } else {
                helper.end(PatternDescrBuilder.class, pattern);
            }
        }
    } else {
        try {
            lhsPattern(pattern, label, isUnification);
            if (state.failed)
                return null;
        } finally {
            helper.end(PatternDescrBuilder.class, pattern);
        }
    }
    return result;
}

Example 58 with BaseDescr

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

the class DRL6Parser method declare.

/* ------------------------------------------------------------------------------------------------
     *                         DECLARE STATEMENT
     * ------------------------------------------------------------------------------------------------ */
/**
 * declare := DECLARE
 *               | (ENTRY-POINT) => entryPointDeclaration
 *               | (WINDOW) => windowDeclaration
 *               | (TRAIT) => typeDeclaration (trait)
 *               | (ENUM) => enumDeclaration
 *               | typeDeclaration (class)
 *            END
 *
 * @return
 * @throws org.antlr.runtime.RecognitionException
 */
public BaseDescr declare(PackageDescrBuilder pkg) throws RecognitionException {
    BaseDescr declaration = null;
    try {
        DeclareDescrBuilder declare = helper.start(pkg, DeclareDescrBuilder.class, null);
        // 'declare'
        match(input, DRL6Lexer.ID, DroolsSoftKeywords.DECLARE, null, DroolsEditorType.KEYWORD);
        if (state.failed)
            return null;
        if (helper.validateIdentifierKey(DroolsSoftKeywords.ENTRY)) {
            // entry point declaration
            declaration = entryPointDeclaration(declare);
        } else if (helper.validateIdentifierKey(DroolsSoftKeywords.WINDOW)) {
            // window declaration
            declaration = windowDeclaration(declare);
        } else if (helper.validateIdentifierKey(DroolsSoftKeywords.TRAIT)) {
            // trait type declaration
            // 'trait'
            match(input, DRL6Lexer.ID, DroolsSoftKeywords.TRAIT, null, DroolsEditorType.KEYWORD);
            if (state.failed)
                return null;
            declaration = typeDeclaration(declare, true);
        } else if (helper.validateIdentifierKey(DroolsSoftKeywords.ENUM)) {
            match(input, DRL6Lexer.ID, DroolsSoftKeywords.ENUM, null, DroolsEditorType.KEYWORD);
            if (state.failed)
                return null;
            declaration = enumDeclaration(declare);
        } else {
            // class type declaration
            declaration = typeDeclaration(declare, false);
        }
    } catch (RecognitionException re) {
        reportError(re);
    }
    return declaration;
}

Example 59 with BaseDescr

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

the class DRL6Parser method lhsExpression.

/**
 * lhsExpression := lhsOr*
 *
 * @param lhs
 * @throws org.antlr.runtime.RecognitionException
 */
private void lhsExpression(CEDescrBuilder<?, AndDescr> lhs) throws RecognitionException {
    helper.start(lhs, CEDescrBuilder.class, null);
    if (state.backtracking == 0) {
        helper.emit(Location.LOCATION_LHS_BEGIN_OF_CONDITION);
    }
    try {
        while (input.LA(1) != DRL6Lexer.EOF && !helper.validateIdentifierKey(DroolsSoftKeywords.THEN) && !helper.validateIdentifierKey(DroolsSoftKeywords.END)) {
            if (state.backtracking == 0) {
                helper.emit(Location.LOCATION_LHS_BEGIN_OF_CONDITION);
            }
            lhsOr(lhs, true);
            if (lhs.getDescr() != null && lhs.getDescr() instanceof ConditionalElementDescr) {
                ConditionalElementDescr root = (ConditionalElementDescr) lhs.getDescr();
                BaseDescr[] descrs = root.getDescrs().toArray(new BaseDescr[root.getDescrs().size()]);
                root.getDescrs().clear();
                for (int i = 0; i < descrs.length; i++) {
                    root.addOrMerge(descrs[i]);
                }
            }
            if (state.failed)
                return;
        }
    } finally {
        helper.end(CEDescrBuilder.class, lhs);
    }
}

Example 60 with BaseDescr

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

the class KiePMMLDescrLhsFactoryTest method declareConstraintNotIn.

@Test
public void declareConstraintNotIn() {
    List<Object> values = Arrays.asList("3", "8.5");
    String patternType = "INPUT2";
    KiePMMLDescrLhsFactory.factory(lhsBuilder).declareConstraintNotIn(patternType, values);
    final List<BaseDescr> descrs = lhsBuilder.getDescr().getDescrs();
    assertNotNull(descrs);
    assertEquals(1, descrs.size());
    assertTrue(descrs.get(0) instanceof NotDescr);
    NotDescr notDescr = (NotDescr) descrs.get(0);
    assertEquals(1, notDescr.getDescrs().size());
    assertTrue(notDescr.getDescrs().get(0) instanceof PatternDescr);
    PatternDescr patternDescr = (PatternDescr) notDescr.getDescrs().get(0);
    assertEquals(patternType, patternDescr.getObjectType());
    assertNull(patternDescr.getIdentifier());
    assertTrue(patternDescr.getConstraint() instanceof AndDescr);
    AndDescr andDescr = (AndDescr) patternDescr.getConstraint();
    assertEquals(1, andDescr.getDescrs().size());
    assertTrue(andDescr.getDescrs().get(0) instanceof ExprConstraintDescr);
    ExprConstraintDescr exprConstraintDescr = (ExprConstraintDescr) andDescr.getDescrs().get(0);
    assertFalse(exprConstraintDescr.isNegated());
    assertEquals(ExprConstraintDescr.Type.NAMED, exprConstraintDescr.getType());
    String expected = "value in (3, 8.5)";
    assertEquals(expected, exprConstraintDescr.getExpression());
}