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

Example 41 with ConstraintConnectiveDescr

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

the class MVELDumper method processConstraint.

private void processConstraint(StringBuilder sbuilder, ExprConstraintDescr base, boolean isInsideRelCons, MVELDumperContext context) {
    DrlExprParser expr = new DrlExprParser(context.getRuleContext().getConfiguration().getLanguageLevel());
    ConstraintConnectiveDescr result = expr.parse(base.getExpression());
    if (result.getDescrs().size() == 1) {
        dump(sbuilder, result.getDescrs().get(0), 0, isInsideRelCons, context);
    } else {
        dump(sbuilder, result, 0, isInsideRelCons, context);
    }
}

Example 42 with ConstraintConnectiveDescr

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

the class MVELDumper method processNullSafeDereferencing.

private String[] processNullSafeDereferencing(String expr, AtomicExprDescr atomicExpr, ConstraintConnectiveDescr ccd, int nullSafePos, int parentIdx, int childIdx) {
    // convert "field1!.field2" in ["field1 != null && ", "field1.field2"]
    String field1 = expr.substring(0, nullSafePos).trim();
    expr = field1 + "." + expr.substring(nullSafePos + 2).trim();
    RelationalExprDescr check = new RelationalExprDescr("!=", false, null, new AtomicExprDescr(getPreconditionsToAppend(field1)), new AtomicExprDescr("null"));
    if (ccd.getConnective() == ConnectiveType.AND || ccd.getConnective() == ConnectiveType.INC_AND) {
        ccd.getDescrs().add(childIdx, check);
    } else {
        BaseDescr desc = ccd.getDescrs().get(parentIdx);
        if (desc instanceof ConstraintConnectiveDescr) {
            ((ConstraintConnectiveDescr) desc).getDescrs().add(childIdx, check);
        } else {
            ConstraintConnectiveDescr localAnd = new ConstraintConnectiveDescr(ConnectiveType.AND);
            BaseDescr original = ccd.getDescrs().remove(parentIdx);
            localAnd.getDescrs().add(check);
            localAnd.getDescrs().add(original);
            ccd.getDescrs().add(parentIdx, localAnd);
        }
    }
    String innerCheck = check.toString() + " && ";
    String[] nullCheckAndExpr = new String[] { innerCheck, expr };
    atomicExpr.setRewrittenExpression(expr);
    return nullCheckAndExpr;
}

Example 43 with ConstraintConnectiveDescr

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

the class DRL5Expressions method andRestriction.

// $ANTLR end "orRestriction"
// $ANTLR start "andRestriction"
// src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:405:1: andRestriction returns [BaseDescr result] : left= singleRestriction ( ( DOUBLE_AMPER ( fullAnnotation[null] )? operator )=>lop= DOUBLE_AMPER (args= fullAnnotation[null] )? right= singleRestriction )* ;
public final BaseDescr andRestriction() throws RecognitionException {
    BaseDescr result = null;
    Token lop = null;
    BaseDescr left = null;
    AnnotationDescr args = null;
    BaseDescr right = null;
    try {
        // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:406:3: (left= singleRestriction ( ( DOUBLE_AMPER ( fullAnnotation[null] )? operator )=>lop= DOUBLE_AMPER (args= fullAnnotation[null] )? right= singleRestriction )* )
        // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:406:5: left= singleRestriction ( ( DOUBLE_AMPER ( fullAnnotation[null] )? operator )=>lop= DOUBLE_AMPER (args= fullAnnotation[null] )? right= singleRestriction )*
        {
            pushFollow(FOLLOW_singleRestriction_in_andRestriction1881);
            left = singleRestriction();
            state._fsp--;
            if (state.failed)
                return result;
            if (state.backtracking == 0) {
                if (buildDescr) {
                    result = left;
                }
            }
            // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:407:3: ( ( DOUBLE_AMPER ( fullAnnotation[null] )? operator )=>lop= DOUBLE_AMPER (args= fullAnnotation[null] )? right= singleRestriction )*
            loop42: while (true) {
                int alt42 = 2;
                int LA42_0 = input.LA(1);
                if ((LA42_0 == DOUBLE_AMPER)) {
                    int LA42_9 = input.LA(2);
                    if ((synpred10_DRL5Expressions())) {
                        alt42 = 1;
                    }
                }
                switch(alt42) {
                    case 1:
                        // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:407:5: ( DOUBLE_AMPER ( fullAnnotation[null] )? operator )=>lop= DOUBLE_AMPER (args= fullAnnotation[null] )? right= singleRestriction
                        {
                            lop = (Token) match(input, DOUBLE_AMPER, FOLLOW_DOUBLE_AMPER_in_andRestriction1901);
                            if (state.failed)
                                return result;
                            if (state.backtracking == 0) {
                                if (isNotEOF())
                                    helper.emit(Location.LOCATION_LHS_INSIDE_CONDITION_OPERATOR);
                            }
                            // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:409:13: (args= fullAnnotation[null] )?
                            int alt41 = 2;
                            int LA41_0 = input.LA(1);
                            if ((LA41_0 == AT)) {
                                alt41 = 1;
                            }
                            switch(alt41) {
                                case 1:
                                    // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:409:13: args= fullAnnotation[null]
                                    {
                                        pushFollow(FOLLOW_fullAnnotation_in_andRestriction1922);
                                        args = fullAnnotation(null);
                                        state._fsp--;
                                        if (state.failed)
                                            return result;
                                    }
                                    break;
                            }
                            pushFollow(FOLLOW_singleRestriction_in_andRestriction1927);
                            right = singleRestriction();
                            state._fsp--;
                            if (state.failed)
                                return result;
                            if (state.backtracking == 0) {
                                if (buildDescr) {
                                    ConstraintConnectiveDescr descr = ConstraintConnectiveDescr.newAnd();
                                    descr.addOrMerge(result);
                                    descr.addOrMerge(right);
                                    if (args != null) {
                                        descr.addAnnotation(args);
                                    }
                                    result = descr;
                                }
                            }
                        }
                        break;
                    default:
                        break loop42;
                }
            }
        }
    } catch (RecognitionException re) {
        throw re;
    } finally {
    // do for sure before leaving
    }
    return result;
}

Example 44 with ConstraintConnectiveDescr

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

the class DRL5Expressions method exclusiveOrExpression.

// $ANTLR end "inclusiveOrExpression"
// $ANTLR start "exclusiveOrExpression"
// src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:259:1: exclusiveOrExpression returns [BaseDescr result] : left= andExpression ( XOR right= andExpression )* ;
public final BaseDescr exclusiveOrExpression() throws RecognitionException {
    BaseDescr result = null;
    BaseDescr left = null;
    BaseDescr right = null;
    try {
        // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:260:3: (left= andExpression ( XOR right= andExpression )* )
        // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:260:5: left= andExpression ( XOR right= andExpression )*
        {
            pushFollow(FOLLOW_andExpression_in_exclusiveOrExpression1301);
            left = andExpression();
            state._fsp--;
            if (state.failed)
                return result;
            if (state.backtracking == 0) {
                if (buildDescr) {
                    result = left;
                }
            }
            // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:261:3: ( XOR right= andExpression )*
            loop29: while (true) {
                int alt29 = 2;
                int LA29_0 = input.LA(1);
                if ((LA29_0 == XOR)) {
                    alt29 = 1;
                }
                switch(alt29) {
                    case 1:
                        // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:261:5: XOR right= andExpression
                        {
                            match(input, XOR, FOLLOW_XOR_in_exclusiveOrExpression1309);
                            if (state.failed)
                                return result;
                            pushFollow(FOLLOW_andExpression_in_exclusiveOrExpression1313);
                            right = andExpression();
                            state._fsp--;
                            if (state.failed)
                                return result;
                            if (state.backtracking == 0) {
                                if (buildDescr) {
                                    ConstraintConnectiveDescr descr = ConstraintConnectiveDescr.newXor();
                                    descr.addOrMerge(result);
                                    descr.addOrMerge(right);
                                    result = descr;
                                }
                            }
                        }
                        break;
                    default:
                        break loop29;
                }
            }
        }
    } catch (RecognitionException re) {
        throw re;
    } finally {
    // do for sure before leaving
    }
    return result;
}

Example 45 with ConstraintConnectiveDescr

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

the class DRL5Expressions method inclusiveOrExpression.

// $ANTLR end "conditionalAndExpression"
// $ANTLR start "inclusiveOrExpression"
// src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:246:1: inclusiveOrExpression returns [BaseDescr result] : left= exclusiveOrExpression ( PIPE right= exclusiveOrExpression )* ;
public final BaseDescr inclusiveOrExpression() throws RecognitionException {
    BaseDescr result = null;
    BaseDescr left = null;
    BaseDescr right = null;
    try {
        // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:247:3: (left= exclusiveOrExpression ( PIPE right= exclusiveOrExpression )* )
        // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:247:5: left= exclusiveOrExpression ( PIPE right= exclusiveOrExpression )*
        {
            pushFollow(FOLLOW_exclusiveOrExpression_in_inclusiveOrExpression1254);
            left = exclusiveOrExpression();
            state._fsp--;
            if (state.failed)
                return result;
            if (state.backtracking == 0) {
                if (buildDescr) {
                    result = left;
                }
            }
            // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:248:3: ( PIPE right= exclusiveOrExpression )*
            loop28: while (true) {
                int alt28 = 2;
                int LA28_0 = input.LA(1);
                if ((LA28_0 == PIPE)) {
                    alt28 = 1;
                }
                switch(alt28) {
                    case 1:
                        // src/main/resources/org/drools/compiler/lang/DRL5Expressions.g:248:5: PIPE right= exclusiveOrExpression
                        {
                            match(input, PIPE, FOLLOW_PIPE_in_inclusiveOrExpression1262);
                            if (state.failed)
                                return result;
                            pushFollow(FOLLOW_exclusiveOrExpression_in_inclusiveOrExpression1266);
                            right = exclusiveOrExpression();
                            state._fsp--;
                            if (state.failed)
                                return result;
                            if (state.backtracking == 0) {
                                if (buildDescr) {
                                    ConstraintConnectiveDescr descr = ConstraintConnectiveDescr.newIncOr();
                                    descr.addOrMerge(result);
                                    descr.addOrMerge(right);
                                    result = descr;
                                }
                            }
                        }
                        break;
                    default:
                        break loop28;
                }
            }
        }
    } catch (RecognitionException re) {
        throw re;
    } finally {
    // do for sure before leaving
    }
    return result;
}