Examples of org.apache.jackrabbit.spi.commons.query.RelationQueryNode

Package org.apache.jackrabbit.spi.commons.query

Examples of org.apache.jackrabbit.spi.commons.query.RelationQueryNode

org.apache.jackrabbit.spi.commons.query.RelationQueryNode
Implements a query node that defines property value relation.


        // check for position predicate
        QueryNode[] pred = node.getPredicates();
        for (QueryNode aPred : pred) {
            if (aPred.getType() == QueryNode.TYPE_RELATION) {
                RelationQueryNode pos = (RelationQueryNode) aPred;
                if (pos.getValueType() == QueryConstants.TYPE_POSITION) {
                    node.setIndex(pos.getPositionValue());
                }
            }
        }


        NameQuery nameTest = null;

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                            || 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);
                        if (tmpRelPath == null) {
                            tmpRelPath = new PathBuilder();
                        }
                        PathQueryNode relPath = tmp.getRelativePath();
                        LocationStepQueryNode[] steps = relPath.getPathSteps();
                        
                        tmpRelPath.addLast(steps[steps.length-1].getNameTest());
                    }
                }

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            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;
                }

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                }
            } 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(PATH_FACTORY.createElement(FN_POSITION_FULL));
                    } 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;
                        
                        pathNode.addPathStep(createDerefQueryNode(node, descendant, pathNode));
                    } else if (queryNode.getType() == QueryNode.TYPE_RELATION) {
                        RelationQueryNode relNode = (RelationQueryNode) queryNode;
                        DerefQueryNode deref = createDerefQueryNode(node, descendant, relNode.getRelativePath());
                        relNode.getRelativePath().addPathStep(deref);
                    } 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(PATH_FACTORY.createElement(NameConstants.JCR_PRIMARYTYPE));
                    } 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 {
                    Name name = resolver.getQName(fName + "()");
                    Path.Element element = PATH_FACTORY.createElement(name);
                    RelationQueryNode relNode = (RelationQueryNode) queryNode;
                    relNode.addPathElement(element);
                } catch (NameException e) {
                    exceptions.add(e);
                }
            } else if (queryNode.getType() == QueryNode.TYPE_PATH) {
                // use function name as name of a pseudo property in select clause

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        // check for position predicate
        QueryNode[] pred = node.getPredicates();
        for (int i = 0; i < pred.length; i++) {
            if (pred[i].getType() == QueryNode.TYPE_RELATION) {
                RelationQueryNode pos = (RelationQueryNode) pred[i];
                if (pos.getValueType() == QueryConstants.TYPE_POSITION) {
                    node.setIndex(pos.getPositionValue());
                }
            }
        }


        NameQuery nameTest = null;

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        // check for position predicate
        QueryNode[] pred = node.getPredicates();
        for (int i = 0; i < pred.length; i++) {
            if (pred[i].getType() == QueryNode.TYPE_RELATION) {
                RelationQueryNode pos = (RelationQueryNode) pred[i];
                if (pos.getValueType() == QueryConstants.TYPE_POSITION) {
                    node.setIndex(pos.getPositionValue());
                }
            }
        }


        NameQuery nameTest = null;

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        // check for position predicate
        QueryNode[] pred = node.getPredicates();
        for (int i = 0; i < pred.length; i++) {
            if (pred[i].getType() == QueryNode.TYPE_RELATION) {
                RelationQueryNode pos = (RelationQueryNode) pred[i];
                if (pos.getValueType() == QueryConstants.TYPE_POSITION) {
                    node.setIndex(pos.getPositionValue());
                }
            }
        }


        NameQuery nameTest = null;

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        // check for position predicate
        QueryNode[] pred = node.getPredicates();
        for (int i = 0; i < pred.length; i++) {
            if (pred[i].getType() == QueryNode.TYPE_RELATION) {
                RelationQueryNode pos = (RelationQueryNode) pred[i];
                if (pos.getValueType() == QueryConstants.TYPE_POSITION) {
                    node.setIndex(pos.getPositionValue());
                }
            }
        }


        NameQuery nameTest = null;

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        // check for position predicate
        QueryNode[] pred = node.getPredicates();
        for (QueryNode aPred : pred) {
            if (aPred.getType() == QueryNode.TYPE_RELATION) {
                RelationQueryNode pos = (RelationQueryNode) aPred;
                if (pos.getValueType() == QueryConstants.TYPE_POSITION) {
                    node.setIndex(pos.getPositionValue());
                }
            }
        }


        NameQuery nameTest = null;

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                return data;
            }


            if (type == QueryConstants.OPERATION_BETWEEN) {
                AndQueryNode between = factory.createAndQueryNode(parent);
                RelationQueryNode rel = createRelationQueryNode(between,
                        identifier, QueryConstants.OPERATION_GE_GENERAL, (ASTLiteral) node.children[1]);
                node.childrenAccept(this, rel);
                between.addOperand(rel);
                rel = createRelationQueryNode(between,
                        identifier, QueryConstants.OPERATION_LE_GENERAL, (ASTLiteral) node.children[2]);
                node.childrenAccept(this, rel);
                between.addOperand(rel);
                predicateNode = between;
            } else if (type == QueryConstants.OPERATION_GE_GENERAL
                    || type == QueryConstants.OPERATION_GT_GENERAL
                    || type == QueryConstants.OPERATION_LE_GENERAL
                    || type == QueryConstants.OPERATION_LT_GENERAL
                    || type == QueryConstants.OPERATION_NE_GENERAL
                    || type == QueryConstants.OPERATION_EQ_GENERAL) {
                predicateNode = createRelationQueryNode(parent,
                        identifier, type, value[0]);
                node.childrenAccept(this, predicateNode);
            } else if (type == QueryConstants.OPERATION_LIKE) {
                ASTLiteral pattern = value[0];
                if (node.getEscapeString() != null) {
                    if (node.getEscapeString().length() == 1) {
                        // backslash is the escape character we use internally
                        pattern.setValue(translateEscaping(pattern.getValue(), node.getEscapeString().charAt(0), '\\'));
                    } else {
                        throw new IllegalArgumentException("ESCAPE string value must have length 1: '" + node.getEscapeString() + "'");
                    }
                } else {
                    // no escape character specified.
                    // if the pattern contains any backslash characters we need
                    // to escape them.
                    pattern.setValue(pattern.getValue().replaceAll("\\\\", "\\\\\\\\"));
                }
                predicateNode = createRelationQueryNode(parent,
                        identifier, type, pattern);
                node.childrenAccept(this, predicateNode);
            } else if (type == QueryConstants.OPERATION_IN) {
                OrQueryNode in = factory.createOrQueryNode(parent);
                for (int i = 1; i < node.children.length; i++) {
                    RelationQueryNode rel = createRelationQueryNode(in,
                            identifier, QueryConstants.OPERATION_EQ_VALUE, (ASTLiteral) node.children[i]);
                    node.childrenAccept(this, rel);
                    in.addOperand(rel);
                }
                predicateNode = in;

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