Examples with OrQueryNode org.apache.jackrabbit.spi.commons.query.OrQueryNode used on opensource projects

Example 1 with OrQueryNode

use of org.apache.jackrabbit.spi.commons.query.OrQueryNode in project jackrabbit by apache.

the class JCRSQLQueryBuilder method visit.

public Object visit(ASTOrExpression node, Object data) {
    NAryQueryNode parent = (NAryQueryNode) data;
    OrQueryNode orQuery = factory.createOrQueryNode(parent);
    // pass to operands
    node.childrenAccept(this, orQuery);
    if (orQuery.getNumOperands() > 0) {
        parent.addOperand(orQuery);
    }
    return parent;
}

Example 2 with OrQueryNode

use of org.apache.jackrabbit.spi.commons.query.OrQueryNode in project jackrabbit by apache.

the class JCRSQLQueryBuilder method visit.

public Object visit(ASTPredicate node, Object data) {
    NAryQueryNode parent = (NAryQueryNode) data;
    int type = node.getOperationType();
    QueryNode predicateNode;
    try {
        final Name[] tmp = new Name[2];
        final ASTLiteral[] value = new ASTLiteral[1];
        node.childrenAccept(new DefaultParserVisitor() {

            public Object visit(ASTIdentifier node, Object data) {
                if (tmp[0] == null) {
                    tmp[0] = node.getName();
                } else if (tmp[1] == null) {
                    tmp[1] = node.getName();
                }
                return data;
            }

            public Object visit(ASTLiteral node, Object data) {
                value[0] = node;
                return data;
            }

            public Object visit(ASTLowerFunction node, Object data) {
                getIdentifier(node);
                return data;
            }

            public Object visit(ASTUpperFunction node, Object data) {
                getIdentifier(node);
                return data;
            }

            private void getIdentifier(SimpleNode node) {
                if (node.jjtGetNumChildren() > 0) {
                    Node n = node.jjtGetChild(0);
                    if (n instanceof ASTIdentifier) {
                        ASTIdentifier identifier = (ASTIdentifier) n;
                        if (tmp[0] == null) {
                            tmp[0] = identifier.getName();
                        } else if (tmp[1] == null) {
                            tmp[1] = identifier.getName();
                        }
                    }
                }
            }
        }, data);
        Name identifier = tmp[0];
        if (identifier != null && identifier.equals(NameConstants.JCR_PATH)) {
            if (tmp[1] != null) {
            // simply ignore, this is a join of a mixin node type
            } else {
                createPathQuery(value[0].getValue(), parent.getType());
            }
            // done
            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;
        } else if (type == QueryConstants.OPERATION_NULL || type == QueryConstants.OPERATION_NOT_NULL) {
            predicateNode = createRelationQueryNode(parent, identifier, type, null);
        } else if (type == QueryConstants.OPERATION_SIMILAR) {
            ASTLiteral literal;
            if (node.children.length == 1) {
                literal = (ASTLiteral) node.children[0];
            } else {
                literal = (ASTLiteral) node.children[1];
            }
            predicateNode = createRelationQueryNode(parent, identifier, type, literal);
        } else if (type == QueryConstants.OPERATION_SPELLCHECK) {
            predicateNode = createRelationQueryNode(parent, NameConstants.JCR_PRIMARYTYPE, type, (ASTLiteral) node.children[0]);
        } else {
            throw new IllegalArgumentException("Unknown operation type: " + type);
        }
    } catch (ArrayIndexOutOfBoundsException e) {
        throw new IllegalArgumentException("Too few arguments in predicate");
    }
    if (predicateNode != null) {
        parent.addOperand(predicateNode);
    }
    return data;
}