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/*
 * This file is part of Log4Jdbc.
 *
 * Log4Jdbc is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Log4Jdbc is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Log4Jdbc.  If not, see .
 *
 */
package fr.ms.log4jdbc.rdbms;

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

import fr.ms.log4jdbc.utils.StringUtils;
import fr.ms.log4jdbc.utils.SystemPropertyUtils;

/**
 * 
 * @see Marco4J
 * 
 * 
 * @author Marco Semiao
 * 
 */
public class GenericRdbmsSpecifics implements RdbmsSpecifics {

  private final static RdbmsSpecifics instance = new GenericRdbmsSpecifics();

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

  private final boolean caseSensitive = SystemPropertyUtils.getProperty("log4jdbc.rdms.caseSensitive", false);

  // Constructeur Privé
  private GenericRdbmsSpecifics() {
  }

  public static RdbmsSpecifics getInstance() {
    return instance;
  }

  public boolean isRdbms(final String classType) {
    return true;
  }

  public DataRdbms getData(final Object object) {
    if (object == null) {
      return new GenericDataRdbms("NULL");
    }

    if (object instanceof String) {
      return new GenericDataRdbms(escapeString((String) object), "'");
    } else if (object instanceof Date) {
      return new GenericDataRdbms(new SimpleDateFormat(dateFormat).format(object), "'");
    } else if (object instanceof Boolean) {
      return new GenericDataRdbms(((Boolean) object).booleanValue() ? "1" : "0", "'");
    } else {
      return new GenericDataRdbms(object.toString());
    }
  }

  public String getTypeQuery(String sql) {
    sql = removeComment(sql);
    return sql.substring(0, 6).toLowerCase();
  }

  public String removeComment(final String sql) {
    return StringUtils.removePart(sql, "/*", "*/");
  }

  public boolean isCaseSensitive() {
    return caseSensitive;
  }

  private static String escapeString(final String in) {
    String out = "";
    for (int i = 0, j = in.length(); i < j; i++) {
      final char c = in.charAt(i);
      if (c == '\'') {
        out = out + c;
      }
      out = out + c;
    }
    return out.toString();
  }
}