001/* 002 * (C) Copyright 2006-2011 Nuxeo SA (http://nuxeo.com/) and others. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 * 016 * Contributors: 017 * Nuxeo - initial API and implementation 018 * 019 * $Id$ 020 */ 021 022package org.nuxeo.ecm.core.query.sql; 023 024import java.io.Reader; 025import java.io.StringReader; 026 027import org.nuxeo.common.utils.ExceptionUtils; 028import org.nuxeo.ecm.core.query.QueryParseException; 029import org.nuxeo.ecm.core.query.sql.model.SQLQuery; 030import org.nuxeo.ecm.core.query.sql.parser.Scanner; 031import org.nuxeo.ecm.core.query.sql.parser.parser; 032 033/** 034 * @author <a href="mailto:bs@nuxeo.com">Bogdan Stefanescu</a> 035 */ 036public final class SQLQueryParser { 037 038 // Utility class 039 private SQLQueryParser() { 040 } 041 042 public static SQLQuery parse(Reader reader) throws QueryParseException { 043 try { 044 Scanner scanner = new Scanner(reader); 045 parser parser = new parser(scanner); 046 return (SQLQuery) parser.parse().value; 047 } catch (QueryParseException e) { 048 throw e; 049 } catch (Exception e) { // stupid CUPS API throws Exception 050 throw new QueryParseException(ExceptionUtils.runtimeException(e)); 051 } 052 } 053 054 public static SQLQuery parse(String string) throws QueryParseException { 055 SQLQuery query = parse(new StringReader(string)); 056 query.setQueryString(string); 057 return query; 058 } 059 060 /** 061 * Returns the string literal in a form ready to embed in an NXQL statement. 062 * 063 * @deprecated since 5.7, 5.6.0-HF08 use {{@link NXQL#escapeString} instead 064 */ 065 @Deprecated 066 public static String prepareStringLiteral(String s) { 067 return NXQL.escapeString(s); 068 } 069 070}