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'jdbacl' stands for 'Java DataBase ACcess Layer' and provides utilities for accessing JDBC databases from Java programs, retrieving meta information in an object model and querying database data. 'rapiddweller jdbacl' is forked from Databene jdbacl by Volker Bergmann.

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/*
 * (c) Copyright 2010-2011 by Volker Bergmann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, is permitted under the terms of the
 * GNU General Public License (GPL).
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * WITHOUT A WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED CONDITIONS,
 * REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE
 * HEREBY EXCLUDED. IN NO EVENT SHALL THE COPYRIGHT OWNER 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 com.rapiddweller.jdbacl;

import com.rapiddweller.common.BeanUtil;
import com.rapiddweller.common.DeploymentError;
import com.rapiddweller.common.IOUtil;
import com.rapiddweller.common.version.VersionNumber;
import com.rapiddweller.jdbacl.dialect.UnknownDialect;

import java.io.IOException;
import java.util.Map;

/**
 * Manages {@link DatabaseDialect}s.


 * Created: 18.02.2010 16:32:55
 *
 * @author Volker Bergmann
 * @since 0.6.0
 */
public class DatabaseDialectManager {

  private static final String FILENAME = "com/rapiddweller/jdbacl/databene.db_dialect.properties";

  private static final Map mappings;

  static {
    try {
      mappings = IOUtil.readProperties(FILENAME);
    } catch (IOException e) {
      throw new DeploymentError("Configuration file not found: " + FILENAME);
    }
  }

  /**
   * Gets dialect for product.
   *
   * @param productName the product name
   * @param version     if no version is specified, the newest one is assumed
   * @return the dialect for product
   */
  public static DatabaseDialect getDialectForProduct(String productName, VersionNumber version) {
    String normalizedProductName = productName.toLowerCase().replace(' ', '_');
    for (Map.Entry entry : mappings.entrySet()) {
      String[] tokens = entry.getKey().split(" ");
      String p = tokens[0];
      String v = null;
      if (tokens.length == 2) {
        v = tokens[1];
      }
      if (normalizedProductName.contains(p) && (v == null || version == null || version.compareTo(VersionNumber.valueOf(v)) >= 0)) {
        return (DatabaseDialect) BeanUtil.newInstance(entry.getValue());
      }
    }
    return new UnknownDialect(productName);
  }

}