Package javax.jcr.query

Examples of javax.jcr.query.InvalidQueryException

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    private NodeType getNodeType(Selector selector) throws RepositoryException {
        try {
            return ntManager.getNodeType(selector.getNodeTypeName());
        } catch (NoSuchNodeTypeException e) {
            throw new InvalidQueryException(
                    "Selected node type does not exist: " + selector, e);
        }
    }
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                // path is 1) relative or 2) descendant-or-self
                // use root node as context
                context = new JackrabbitTermQuery(new Term(FieldNames.PARENT, ""));
            }
        } else {
            exceptions.add(new InvalidQueryException("Number of location steps must be > 0"));
        }
        // loop over steps
        for (LocationStepQueryNode step : steps) {
            context = (Query) step.accept(this, context);
        }
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    public Object visit(RelationQueryNode node, Object data) throws RepositoryException {
        PathQueryNode relPath = node.getRelativePath();
        if (relPath == null
                && node.getOperation() != QueryConstants.OPERATION_SIMILAR
                && node.getOperation() != QueryConstants.OPERATION_SPELLCHECK) {
            exceptions.add(new InvalidQueryException("@* not supported in predicate"));
            return data;
        }
        LocationStepQueryNode[] steps = relPath.getPathSteps();
        Name propertyName;
        if (node.getOperation() == QueryConstants.OPERATION_SIMILAR) {
            // this is a bit ugly:
            // use the name of a dummy property because relPath actually
            // references a property. whereas the relPath of the similar
            // operation references a node
            propertyName = NameConstants.JCR_PRIMARYTYPE;
        } else {
            propertyName = steps[steps.length - 1].getNameTest();
        }

        Query query;
        String[] stringValues = new String[1];
        switch (node.getValueType()) {
            case 0:
                // not set: either IS NULL or IS NOT NULL
                break;
            case QueryConstants.TYPE_DATE:
                stringValues[0] = DateField.dateToString(node.getDateValue());
                break;
            case QueryConstants.TYPE_DOUBLE:
                stringValues[0] = DoubleField.doubleToString(node.getDoubleValue());
                break;
            case QueryConstants.TYPE_LONG:
                stringValues[0] = LongField.longToString(node.getLongValue());
                break;
            case QueryConstants.TYPE_STRING:
                if (node.getOperation() == QueryConstants.OPERATION_EQ_GENERAL
                        || node.getOperation() == QueryConstants.OPERATION_EQ_VALUE
                        || node.getOperation() == QueryConstants.OPERATION_NE_GENERAL
                        || node.getOperation() == QueryConstants.OPERATION_NE_VALUE) {
                    // only use coercing on non-range operations
                    stringValues = getStringValues(propertyName, node.getStringValue());
                } else {
                    stringValues[0] = node.getStringValue();
                }
                break;
            case QueryConstants.TYPE_POSITION:
                // ignore position. is handled in the location step
                return null;
            default:
                throw new IllegalArgumentException("Unknown relation type: "
                        + node.getValueType());
        }

        // get property transformation
        final int[] transform = new int[]{TransformConstants.TRANSFORM_NONE};
        node.acceptOperands(new DefaultQueryNodeVisitor() {
            public Object visit(PropertyFunctionQueryNode node, Object data) {
                if (node.getFunctionName().equals(PropertyFunctionQueryNode.LOWER_CASE)) {
                    transform[0] = TransformConstants.TRANSFORM_LOWER_CASE;
                } else if (node.getFunctionName().equals(PropertyFunctionQueryNode.UPPER_CASE)) {
                    transform[0] = TransformConstants.TRANSFORM_UPPER_CASE;
                }
                return data;
            }
        }, null);

        String field = "";
        try {
            field = resolver.getJCRName(propertyName);
        } catch (NamespaceException e) {
            // should never happen
            exceptions.add(e);
        }

        // support for fn:name()
        if (propertyName.equals(FN_NAME)) {
            if (node.getValueType() != QueryConstants.TYPE_STRING) {
                exceptions.add(new InvalidQueryException("Name function can "
                        + "only be used in conjunction with a string literal"));
                return data;
            }
            if (node.getOperation() == QueryConstants.OPERATION_EQ_VALUE
                    || node.getOperation() == QueryConstants.OPERATION_EQ_GENERAL) {
                // check if string literal is a valid XML Name
                if (XMLChar.isValidName(node.getStringValue())) {
                    // parse string literal as JCR Name
                    try {
                        Name n = session.getQName(ISO9075.decode(node.getStringValue()));
                        query = new NameQuery(n, indexFormatVersion, nsMappings);
                    } catch (NameException e) {
                        exceptions.add(e);
                        return data;
                    } catch (NamespaceException e) {
                        exceptions.add(e);
                        return data;
                    }
                } else {
                    // will never match -> create dummy query
                    query = new BooleanQuery();
                }
            } else if (node.getOperation() == QueryConstants.OPERATION_LIKE) {
                // the like operation always has one string value.
                // no coercing, see above
                if (stringValues[0].equals("%")) {
                    query = new org.apache.lucene.search.MatchAllDocsQuery();
                } else {
                    query = new WildcardNameQuery(stringValues[0],
                            transform[0], session, nsMappings, cache);
                }
            } else {
                exceptions.add(new InvalidQueryException("Name function can "
                        + "only be used in conjunction with the following operators: equals, like"));
                return data;
            }
        } else {
            switch (node.getOperation()) {
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                parser.ReInit(new StringReader(statement));
                query = parser.XPath2();
            }
            query.jjtAccept(this, root);
        } catch (ParseException e) {
            throw new InvalidQueryException(e.getMessage() + " for statement: " + statement, e);
        } catch (Throwable t) {
            // also catch any other exception
            throw new InvalidQueryException(t.getMessage() + " for statement: " + statement, t);
        }
        if (exceptions.size() > 0) {
            // simply report the first one
            Exception e = (Exception) exceptions.get(0);
            if (e instanceof InvalidQueryException) {
                // just re-throw
                throw (InvalidQueryException) e;
            } else {
                // otherwise package
                throw new InvalidQueryException(e.getMessage(), e);
            }
        }
    }
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            case JJTROOT:
            case JJTROOTDESCENDANTS:
                if (queryNode instanceof PathQueryNode) {
                    ((PathQueryNode) queryNode).setAbsolute(true);
                } else {
                    exceptions.add(new InvalidQueryException(
                            "Unsupported root level query node: " + queryNode));
                }
                break;
            case JJTSTEPEXPR:
                if (isAttributeAxis(node)) {
                    if (queryNode.getType() == QueryNode.TYPE_RELATION
                            || (queryNode.getType() == QueryNode.TYPE_DEREF
                                     && ((DerefQueryNode) queryNode).getRefProperty() == null)
                            || queryNode.getType() == QueryNode.TYPE_ORDER
                            || queryNode.getType() == QueryNode.TYPE_PATH
                            || queryNode.getType() == QueryNode.TYPE_TEXTSEARCH) {
                        // traverse
                        node.childrenAccept(this, queryNode);
                    } else if (queryNode.getType() == QueryNode.TYPE_NOT) {
                        // is null expression
                        RelationQueryNode isNull
                                = factory.createRelationQueryNode(queryNode,
                                        RelationQueryNode.OPERATION_NULL);
                        applyRelativePath(isNull);
                        node.childrenAccept(this, isNull);
                        NotQueryNode notNode = (NotQueryNode) queryNode;
                        NAryQueryNode parent = (NAryQueryNode) notNode.getParent();
                        parent.removeOperand(notNode);
                        parent.addOperand(isNull);
                    } else {
                        // not null expression
                        RelationQueryNode notNull =
                                factory.createRelationQueryNode(queryNode,
                                        RelationQueryNode.OPERATION_NOT_NULL);
                        applyRelativePath(notNull);
                        node.childrenAccept(this, notNull);
                        ((NAryQueryNode) queryNode).addOperand(notNull);
                    }
                } else {
                    if (queryNode.getType() == QueryNode.TYPE_PATH) {
                        createLocationStep(node, (NAryQueryNode) queryNode);
                    } else if (queryNode.getType() == QueryNode.TYPE_TEXTSEARCH
                            || queryNode.getType() == QueryNode.TYPE_RELATION) {
                        node.childrenAccept(this, queryNode);
                    } else {
                        // step within a predicate
                        RelationQueryNode tmp = factory.createRelationQueryNode(
                                null, RelationQueryNode.OPERATION_NOT_NULL);
                        node.childrenAccept(this, tmp);
                        QPathEntry[] entr = tmp.getRelativePath().getEntries();
                        if (tmpRelPath == null)
                        {

                           tmpRelPath = new QPath(new QPathEntry[]{entr[entr.length - 1]});
                        }
                        else
                        {
                           tmpRelPath = QPath.makeChildPath(tmpRelPath, entr[entr.length - 1]);
                        }
                       
                    }
                }
                break;
            case JJTNAMETEST:
                if (queryNode.getType() == QueryNode.TYPE_LOCATION
                        || queryNode.getType() == QueryNode.TYPE_DEREF
                        || queryNode.getType() == QueryNode.TYPE_RELATION
                        || queryNode.getType() == QueryNode.TYPE_TEXTSEARCH
                        || queryNode.getType() == QueryNode.TYPE_PATH) {
                    createNodeTest(node, queryNode);
                } else if (queryNode.getType() == QueryNode.TYPE_ORDER) {
                    createOrderSpec(node, (OrderQueryNode) queryNode);
                } else {
                    // traverse
                    node.childrenAccept(this, queryNode);
                }
                break;
            case JJTELEMENTNAMEORWILDCARD:
                if (queryNode.getType() == QueryNode.TYPE_LOCATION) {
                    SimpleNode child = (SimpleNode) node.jjtGetChild(0);
                    if (child.getId() != JJTANYNAME) {
                        createNodeTest(child, queryNode);
                    }
                }
                break;
            case JJTTEXTTEST:
                if (queryNode.getType() == QueryNode.TYPE_LOCATION) {
                    LocationStepQueryNode loc = (LocationStepQueryNode) queryNode;
                    loc.setNameTest(JCR_XMLTEXT);
                }
                break;
            case JJTTYPENAME:
                if (queryNode.getType() == QueryNode.TYPE_LOCATION) {
                    LocationStepQueryNode loc = (LocationStepQueryNode) queryNode;
                    String ntName = ((SimpleNode) node.jjtGetChild(0)).getValue();
                    try {
                        InternalQName nt = resolver.parseJCRName(ntName).getInternalName();
                        NodeTypeQueryNode nodeType = factory.createNodeTypeQueryNode(loc, nt);
                        loc.addPredicate(nodeType);
                    } catch (NamespaceException e) {
                        exceptions.add(new InvalidQueryException("Not a valid name: " + ntName));
                    } catch (RepositoryException e) {
                        exceptions.add(new InvalidQueryException("Not a valid name: " + ntName));
                    }
                }
                break;
            case JJTOREXPR:
                NAryQueryNode parent = (NAryQueryNode) queryNode;
                QueryNode orQueryNode = factory.createOrQueryNode(parent);
                parent.addOperand(orQueryNode);
                // traverse
                node.childrenAccept(this, orQueryNode);
                break;
            case JJTANDEXPR:
                parent = (NAryQueryNode) queryNode;
                QueryNode andQueryNode = factory.createAndQueryNode(parent);
                parent.addOperand(andQueryNode);
                // traverse
                node.childrenAccept(this, andQueryNode);
                break;
            case JJTCOMPARISONEXPR:
                createExpression(node, (NAryQueryNode) queryNode);
                break;
            case JJTSTRINGLITERAL:
            case JJTDECIMALLITERAL:
            case JJTDOUBLELITERAL:
            case JJTINTEGERLITERAL:
                if (queryNode.getType() == QueryNode.TYPE_RELATION) {
                    assignValue(node, (RelationQueryNode) queryNode);
                } else if (queryNode.getType() == QueryNode.TYPE_LOCATION) {
                    if (node.getId() == JJTINTEGERLITERAL) {
                        int index = Integer.parseInt(node.getValue());
                        ((LocationStepQueryNode) queryNode).setIndex(index);
                    } else {
                        exceptions.add(new InvalidQueryException("LocationStep only allows integer literal as position index"));
                    }
                } else {
                    exceptions.add(new InvalidQueryException("Parse error: data is not a RelationQueryNode"));
                }
                break;
            case JJTUNARYMINUS:
                if (queryNode.getType() == QueryNode.TYPE_RELATION) {
                    ((RelationQueryNode) queryNode).setUnaryMinus(true);
                } else {
                    exceptions.add(new InvalidQueryException("Parse error: data is not a RelationQueryNode"));
                }
                break;
            case JJTFUNCTIONCALL:
                queryNode = createFunction(node, queryNode);
                break;
            case JJTORDERBYCLAUSE:
                root.setOrderNode(factory.createOrderQueryNode(root));
                queryNode = root.getOrderNode();
                node.childrenAccept(this, queryNode);
                break;
            case JJTORDERMODIFIER:
                if (node.jjtGetNumChildren() > 0
                        && ((SimpleNode) node.jjtGetChild(0)).getId() == JJTDESCENDING) {
                    OrderQueryNode.OrderSpec[] specs = ((OrderQueryNode) queryNode).getOrderSpecs();
                    specs[specs.length - 1].setAscending(false);
                }
                break;
            case JJTPREDICATELIST:
                if (queryNode.getType() == QueryNode.TYPE_PATH) {
                    // switch to last location
                    QueryNode[] operands = ((PathQueryNode) queryNode).getOperands();
                    queryNode = operands[operands.length - 1];
                }
                node.childrenAccept(this, queryNode);
                break;
            case JJTPREDICATE:
                if (queryNode.getType() == QueryNode.TYPE_LOCATION
                        || queryNode.getType() == QueryNode.TYPE_DEREF) {
                    node.childrenAccept(this, queryNode);
                } else {
                    // predicate not allowed here
                    exceptions.add(new InvalidQueryException("Unsupported location for predicate"));
                }
                break;
            case JJTDOTDOT:
                exceptions.add(new InvalidQueryException("Parent axis is not supported"));
                break;
            default:
                // per default traverse
                node.childrenAccept(this, queryNode);
        }
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                       {
                          ts.setReferencesProperty(true);
                       }
                    }
                } catch (RepositoryException e) {
                    exceptions.add(new InvalidQueryException("Illegal name: " + child.getValue()));
                }
            } else if (child.getId() == JJTSTAR) {
                if (queryNode.getType() == QueryNode.TYPE_LOCATION) {
                    ((LocationStepQueryNode) queryNode).setNameTest(null);
                } else if (queryNode.getType() == QueryNode.TYPE_RELATION) {
                   ((RelationQueryNode)queryNode).addPathElement(new QPathEntry(RelationQueryNode.STAR_NAME_TEST, 0));
                } else if (queryNode.getType() == QueryNode.TYPE_TEXTSEARCH) {
                   ((TextsearchQueryNode)queryNode).addPathElement(new QPathEntry(RelationQueryNode.STAR_NAME_TEST, 0));
                }
            } else {
                exceptions.add(new InvalidQueryException("Unsupported location for name test: " + child));
            }
        }
    }
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        } else if (opType.equals(OP_NE)) {
            type = RelationQueryNode.OPERATION_NE_VALUE;
        } else if (opType.equals(OP_SIGN_NE)) {
            type = RelationQueryNode.OPERATION_NE_GENERAL;
        } else {
            exceptions.add(new InvalidQueryException("Unsupported ComparisonExpr type:" + node.getValue()));
        }

        final RelationQueryNode rqn = factory.createRelationQueryNode(queryNode, type);

        // traverse
        node.childrenAccept(this, rqn);

        // check if string transformation is valid
        try {
            rqn.acceptOperands(new DefaultQueryNodeVisitor() {
                public Object visit(PropertyFunctionQueryNode node, Object data) {
                    String functionName = node.getFunctionName();
                    if ((functionName.equals(PropertyFunctionQueryNode.LOWER_CASE)
                            || functionName.equals(PropertyFunctionQueryNode.UPPER_CASE))
                                && rqn.getValueType() != QueryConstants.TYPE_STRING) {
                        String msg = "Upper and lower case function are only supported with String literals";
                        exceptions.add(new InvalidQueryException(msg));
                    }
                    return data;
                }
            }, null);
        }
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                queryNode.setPositionValue(Integer.parseInt(node.getValue()));
            } else {
                queryNode.setLongValue(Long.parseLong(node.getValue()));
            }
        } else {
            exceptions.add(new InvalidQueryException("Unsupported literal type:" + node.toString()));
        }
    }
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                    queryNode = not;
                    // traverse
                    if (node.jjtGetNumChildren() == 2) {
                        node.jjtGetChild(1).jjtAccept(this, queryNode);
                    } else {
                        exceptions.add(new InvalidQueryException("fn:not only supports one expression argument"));
                    }
                } else {
                    exceptions.add(new InvalidQueryException("Unsupported location for function fn:not"));
                }
            } else if (XS_DATETIME.equals(funName)) {
                // check arguments
                if (node.jjtGetNumChildren() == 2) {
                    if (queryNode instanceof RelationQueryNode) {
                        RelationQueryNode rel = (RelationQueryNode) queryNode;
                        SimpleNode literal = (SimpleNode) node.jjtGetChild(1).jjtGetChild(0);
                        if (literal.getId() == JJTSTRINGLITERAL) {
                            String value = literal.getValue();
                            // strip quotes
                            value = value.substring(1, value.length() - 1);
                            Calendar c = ISO8601.parse(value);
                            if (c == null) {
                                exceptions.add(new InvalidQueryException("Unable to parse string literal for xs:dateTime: "
                                         + value));
                            } else {
                                rel.setDateValue(c.getTime());
                            }
                        } else {
                            exceptions.add(new InvalidQueryException("Wrong argument type for xs:dateTime"));
                        }
                    } else {
                        exceptions.add(new InvalidQueryException("Unsupported location for function xs:dateTime"));
                    }
                } else {
                    // wrong number of arguments
                    exceptions.add(new InvalidQueryException("Wrong number of arguments for xs:dateTime"));
                }
            } else if (JCR_CONTAINS.equals(funName)) {
                // check number of arguments
                if (node.jjtGetNumChildren() == 3) {
                    if (queryNode instanceof NAryQueryNode) {
                        SimpleNode literal = (SimpleNode) node.jjtGetChild(2).jjtGetChild(0);
                        if (literal.getId() == JJTSTRINGLITERAL) {
                            TextsearchQueryNode contains = factory.createTextsearchQueryNode(
                                    queryNode, unescapeQuotes(literal.getValue()));
                            // assign property name
                            SimpleNode path = (SimpleNode) node.jjtGetChild(1);
                            path.jjtAccept(this, contains);
                            ((NAryQueryNode) queryNode).addOperand(contains);
                        } else {
                            exceptions.add(new InvalidQueryException("Wrong argument type for jcr:contains"));
                        }
                    }
                } else {
                    // wrong number of arguments
                    exceptions.add(new InvalidQueryException("Wrong number of arguments for jcr:contains"));
                }
            } else if (JCR_LIKE.equals(funName)) {
                // check number of arguments
                if (node.jjtGetNumChildren() == 3) {
                    if (queryNode instanceof NAryQueryNode) {
                        RelationQueryNode like = factory.createRelationQueryNode(
                                queryNode, RelationQueryNode.OPERATION_LIKE);
                        ((NAryQueryNode) queryNode).addOperand(like);

                        // assign property name
                        node.jjtGetChild(1).jjtAccept(this, like);
                        // check property name
                        if (like.getRelativePath() == null) {
                            exceptions.add(new InvalidQueryException("Wrong first argument type for jcr:like"));
                        }

                        SimpleNode literal = (SimpleNode) node.jjtGetChild(2).jjtGetChild(0);
                        if (literal.getId() == JJTSTRINGLITERAL) {
                            like.setStringValue(unescapeQuotes(literal.getValue()));
                        } else {
                            exceptions.add(new InvalidQueryException("Wrong second argument type for jcr:like"));
                        }
                    } else {
                        exceptions.add(new InvalidQueryException("Unsupported location for function jcr:like"));
                    }
                } else {
                    // wrong number of arguments
                    exceptions.add(new InvalidQueryException("Wrong number of arguments for jcr:like"));
                }
            } else if (FN_TRUE.equals(funName)) {
                if (queryNode.getType() == QueryNode.TYPE_RELATION) {
                    RelationQueryNode rel = (RelationQueryNode) queryNode;
                    rel.setStringValue("true");
                } else {
                    exceptions.add(new InvalidQueryException("Unsupported location for true()"));
                }
            } else if (FN_FALSE.equals(funName)) {
                if (queryNode.getType() == QueryNode.TYPE_RELATION) {
                    RelationQueryNode rel = (RelationQueryNode) queryNode;
                    rel.setStringValue("false");
                } else {
                    exceptions.add(new InvalidQueryException("Unsupported location for false()"));
                }
            } else if (FN_POSITION.equals(funName)) {
                if (queryNode.getType() == QueryNode.TYPE_RELATION) {
                    RelationQueryNode rel = (RelationQueryNode) queryNode;
                    if (rel.getOperation() == RelationQueryNode.OPERATION_EQ_GENERAL) {
                        // set dummy value to set type of relation query node
                        // will be overwritten when the tree is furhter parsed.
                       rel.setPositionValue(1);
                       rel.addPathElement(new QPathEntry(FN_POSITION_FULL, 0));
                    } else {
                        exceptions.add(new InvalidQueryException("Unsupported expression with position(). Only = is supported."));
                    }
                } else {
                    exceptions.add(new InvalidQueryException("Unsupported location for position()"));
                }
            } else if (FN_FIRST.equals(funName)) {
                if (queryNode.getType() == QueryNode.TYPE_RELATION) {
                    ((RelationQueryNode) queryNode).setPositionValue(1);
                } else if (queryNode.getType() == QueryNode.TYPE_LOCATION) {
                    ((LocationStepQueryNode) queryNode).setIndex(1);
                } else {
                    exceptions.add(new InvalidQueryException("Unsupported location for first()"));
                }
            } else if (FN_LAST.equals(funName)) {
                if (queryNode.getType() == QueryNode.TYPE_RELATION) {
                    ((RelationQueryNode) queryNode).setPositionValue(LocationStepQueryNode.LAST);
                } else if (queryNode.getType() == QueryNode.TYPE_LOCATION) {
                    ((LocationStepQueryNode) queryNode).setIndex(LocationStepQueryNode.LAST);
                } else {
                    exceptions.add(new InvalidQueryException("Unsupported location for last()"));
                }
            } else if (JCR_DEREF.equals(funName)) {
                // check number of arguments
                if (node.jjtGetNumChildren() == 3) {
                    boolean descendant = false;
                    if (queryNode.getType() == QueryNode.TYPE_LOCATION) {
                        LocationStepQueryNode loc = (LocationStepQueryNode) queryNode;
                        // remember if descendant axis
                        descendant = loc.getIncludeDescendants();
                        queryNode = loc.getParent();
                        ((NAryQueryNode) queryNode).removeOperand(loc);
                    }
                    if (queryNode.getType() == QueryNode.TYPE_PATH) {
                        PathQueryNode pathNode = (PathQueryNode) queryNode;
                        DerefQueryNode derefNode = factory.createDerefQueryNode(pathNode, null, false);

                        // assign property name
                        node.jjtGetChild(1).jjtAccept(this, derefNode);
                        // check property name
                        if (derefNode.getRefProperty() == null) {
                            exceptions.add(new InvalidQueryException("Wrong first argument type for jcr:deref"));
                        }

                        SimpleNode literal = (SimpleNode) node.jjtGetChild(2).jjtGetChild(0);
                        if (literal.getId() == JJTSTRINGLITERAL) {
                            String value = literal.getValue();
                            // strip quotes
                            value = value.substring(1, value.length() - 1);
                            if (!value.equals("*")) {
                                InternalQName name = null;
                                try {
                                   name = decode(resolver.parseJCRName(value).getInternalName());
                                } catch (RepositoryException e) {
                                    exceptions.add(new InvalidQueryException("Illegal name: " + value));
                                }
                                derefNode.setNameTest(name);
                            }
                        } else {
                            exceptions.add(new InvalidQueryException("Second argument for jcr:deref must be a String"));
                        }

                        // check if descendant
                        if (!descendant) {
                            Node p = node.jjtGetParent();
                            for (int i = 0; i < p.jjtGetNumChildren(); i++) {
                                SimpleNode c = (SimpleNode) p.jjtGetChild(i);
                                if (c == node) { // NOSONAR
                                    break;
                                }
                                descendant = (c.getId() == JJTSLASHSLASH
                                        || c.getId() == JJTROOTDESCENDANTS);
                            }
                        }
                        derefNode.setIncludeDescendants(descendant);
                        pathNode.addPathStep(derefNode);
                    } else {
                        exceptions.add(new InvalidQueryException("Unsupported location for jcr:deref()"));
                    }
                }
            } else if (JCR_SCORE.equals(funName)) {
                if (queryNode.getType() == QueryNode.TYPE_ORDER) {
                    createOrderSpec(node, (OrderQueryNode) queryNode);
                } else {
                    exceptions.add(new InvalidQueryException("Unsupported location for jcr:score()"));
                }
            } else if (FN_LOWER_CASE.equals(funName)) {
                if (node.jjtGetNumChildren() == 2) {
                    if (queryNode.getType() == QueryNode.TYPE_RELATION) {
                        RelationQueryNode relNode = (RelationQueryNode) queryNode;
                        relNode.addOperand(factory.createPropertyFunctionQueryNode(
                                relNode, PropertyFunctionQueryNode.LOWER_CASE));
                        // get property name
                        node.jjtGetChild(1).jjtAccept(this, relNode);
                    } else {
                        exceptions.add(new InvalidQueryException("Unsupported location for fn:lower-case()"));
                    }
                } else {
                    exceptions.add(new InvalidQueryException("Wrong number of argument for fn:lower-case()"));
                }
            } else if (FN_UPPER_CASE.equals(funName)) {
                if (node.jjtGetNumChildren() == 2) {
                    if (queryNode.getType() == QueryNode.TYPE_RELATION) {
                        RelationQueryNode relNode = (RelationQueryNode) queryNode;
                        relNode.addOperand(factory.createPropertyFunctionQueryNode(
                                relNode, PropertyFunctionQueryNode.UPPER_CASE));
                        // get property name
                        node.jjtGetChild(1).jjtAccept(this, relNode);
                    } else {
                        exceptions.add(new InvalidQueryException("Unsupported location for fn:upper-case()"));
                    }
                } else {
                    exceptions.add(new InvalidQueryException("Unsupported location for fn:upper-case()"));
                }
            } else if (REP_SIMILAR.equals(funName)) {
                if (node.jjtGetNumChildren() == 3) {
                    if (queryNode instanceof NAryQueryNode) {
                        NAryQueryNode parent = (NAryQueryNode) queryNode;
                        RelationQueryNode rel = factory.createRelationQueryNode(
                                parent, RelationQueryNode.OPERATION_SIMILAR);
                        parent.addOperand(rel);
                        // assign path
                        node.jjtGetChild(1).jjtAccept(this, rel);

                        // get path string
                        node.jjtGetChild(2).jjtAccept(this, rel);
                        // check if string is set
                        if (rel.getStringValue() == null) {
                            exceptions.add(new InvalidQueryException(
                                    "Second argument for rep:similar() must be of type string"));
                        }
                    } else {
                        exceptions.add(new InvalidQueryException(
                                "Unsupported location for rep:similar()"));
                    }
                } else {
                    exceptions.add(new InvalidQueryException(
                            "Wrong number of arguments for rep:similar()"));
                }
            } else if (REP_SPELLCHECK.equals(funName)
                    && queryNode.getType() != QueryNode.TYPE_PATH) {
                if (node.jjtGetNumChildren() == 2) {
                    if (queryNode instanceof NAryQueryNode) {
                        NAryQueryNode parent = (NAryQueryNode) queryNode;
                        RelationQueryNode rel = factory.createRelationQueryNode(
                                parent, RelationQueryNode.OPERATION_SPELLCHECK);
                        parent.addOperand(rel);

                        // get string to check
                        node.jjtGetChild(1).jjtAccept(this, rel);
                        // check if string is set
                        if (rel.getStringValue() == null) {
                            exceptions.add(new InvalidQueryException(
                                    "Argument for rep:spellcheck() must be of type string"));
                        }

                        // set a dummy property name
                        rel.addPathElement(new QPathEntry(Constants.JCR_PRIMARYTYPE, 0));
                } else {
                        exceptions.add(new InvalidQueryException(
                                "Unsupported location for rep:spellcheck()"));
                    }
                } else {
                    exceptions.add(new InvalidQueryException(
                            "Wrong number of arguments for rep:spellcheck()"));
                }
            } else if (queryNode.getType() == QueryNode.TYPE_RELATION) {
                // use function name as name of a pseudo property in a relation
                try {
                   InternalQName name = resolver.parseJCRName(fName + "()").getInternalName();

                   RelationQueryNode relNode = (RelationQueryNode)queryNode;
                   relNode.addPathElement(new QPathEntry(name, 0));
                } catch (RepositoryException e) {
                    exceptions.add(e);
                }
            } else if (queryNode.getType() == QueryNode.TYPE_PATH) {
                // use function name as name of a pseudo property in select clause
                try {
                   InternalQName name = resolver.parseJCRName(fName + "()").getInternalName();
                   root.addSelectProperty(name);
                } catch (RepositoryException e) {
                    exceptions.add(e);
                }
            } else {
                exceptions.add(new InvalidQueryException("Unsupported function: " + fName));
            }
        } catch (NamespaceException e) {
            exceptions.add(e);
        } catch (RepositoryException e) {
            exceptions.add(e);
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           }
          
           spec = new OrderQueryNode.OrderSpec(resultPath, true);
           queryNode.addOrderSpec(spec);
       } catch (RepositoryException e) {
           exceptions.add(new InvalidQueryException("Illegal name: " + child.getValue()));
       }
       return spec;
    }
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