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BSD Licensed JDBC driver for Drizzle and MySQL

There is a newer version: 1.4

/*
 * Drizzle-JDBC
 *
 * Copyright (c) 2009-2011, Marcus Eriksson
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following
 * conditions are met:
 *
 *  Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
 *  Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
 *   disclaimer in the documentation and/or other materials provided with the distribution.
 *  Neither the name of the driver nor the names of its contributors may be used to endorse or promote products derived
 *   from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
 * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package org.drizzle.jdbc.internal.common;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class RewriteParameterizedBatchHandlerFactory implements ParameterizedBatchHandlerFactory {

    public ParameterizedBatchHandler get(final String query, final Protocol protocol) {
        final Pattern p = Pattern.compile(
                "(?i)^\\s*+(INSERT (INTO)?\\s*(\\w+\\.)?\\w+\\s*(\\([^\\)]*\\))?\\s*VALUES?)\\s*(\\([^\\)]*\\))\\s*(ON DUPLICATE KEY UPDATE.+)?");
        final Matcher m = p.matcher(query);
        if (m.matches()) {
            return new RewriteParameterizedBatchHandler(protocol, m.group(1), m.group(5), m.group(6));
        } else {
            return new DefaultParameterizedBatchHandler(protocol);
        }
    }
}