net.sf.log4jdbc.RdbmsSpecifics Maven / Gradle / Ivy

Go to download
Show more of this group Show more artifacts with this name
Show all versions of log4jdbc-remix Show documentation
experimental fork of log4jdbc
The newest version!
/**
 * Copyright 2007-2010 Arthur Blake
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package net.sf.log4jdbc;

import java.util.Date;
import java.text.DateFormat;
import java.text.SimpleDateFormat;

/**
 * Encapsulate sql formatting details about a particular relational database management system so that
 * accurate, useable SQL can be composed for that RDMBS.
 *
 * @author Arthur Blake
 */
class RdbmsSpecifics
{
  /**
   * Default constructor.
   */
  RdbmsSpecifics()
  {
  }

  protected static final String dateFormat = "MM/dd/yyyy HH:mm:ss.SSS";

  /**
   * Format an Object that is being bound to a PreparedStatement parameter, for display. The goal is to reformat the
   * object in a format that can be re-run against the native SQL client of the particular Rdbms being used.  This
   * class should be extended to provide formatting instances that format objects correctly for different RDBMS
   * types.
   *
   * @param object jdbc object to be formatted.
   * @return formatted dump of the object.
   */
  String formatParameterObject(Object object)
  {
    if (object == null)
    {
      return "NULL";
    }
    else
    {
      if (object instanceof String)
      {
        // todo: need to handle imbedded quotes??
        return "'" + object + "'";
      }
      else if (object instanceof Date)
      {
        return "'" + new SimpleDateFormat(dateFormat).format(object) + "'";
      }
      else if (object instanceof Boolean)
      {
        return DriverSpy.DumpBooleanAsTrueFalse?
            ((Boolean)object).booleanValue()?"true":"false"
            :((Boolean)object).booleanValue()?"1":"0";
      }
      else
      {
        return object.toString();
      }
    }
  }

}