/*
    *
    * The DbUnit Database Testing Framework
    * Copyright (C)2002-2004, DbUnit.org
    *
    * This library is free software; you can redistribute it and/or
    * modify it under the terms of the GNU Lesser General Public
    * License as published by the Free Software Foundation; either
    * version 2.1 of the License, or (at your option) any later version.
   *
   * This library 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
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   *
   */
  
  package org.dbunit.dataset.datatype;
  
  import java.sql.Blob;
  import java.sql.Clob;
  import java.sql.PreparedStatement;
  import java.sql.ResultSet;
  import java.sql.SQLException;
  
  import org.dbunit.dataset.ITable;
  import org.dbunit.util.Base64;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * @author Manuel Laflamme
   * @author Last changed by: $Author$
   * @version $Revision$ $Date$
   * @since 1.0
   */
  public class StringDataType extends AbstractDataType
  {
      private static final Logger logger =
              LoggerFactory.getLogger(StringDataType.class);
  
      public StringDataType(final String name, final int sqlType)
      {
          super(name, sqlType, String.class, false);
      }
  
      ////////////////////////////////////////////////////////////////////////////
      // DataType class
  
      @Override
      public Object typeCast(final Object value) throws TypeCastException
      {
          logger.debug("typeCast(value={}) - start", value);
  
          if (value == null || value == ITable.NO_VALUE)
          {
              return null;
          }
  
          if (value instanceof String)
          {
              return value;
          }
  
          if (value instanceof java.sql.Date || value instanceof java.sql.Time
                  || value instanceof java.sql.Timestamp
                  || value instanceof java.time.temporal.TemporalAccessor)
          {
              return value.toString();
          }
  
          if (value instanceof Boolean)
          {
              return value.toString();
          }
  
          if (value instanceof Number)
          {
              try
              {
                  return value.toString();
              } catch (final java.lang.NumberFormatException e)
              {
                  throw new TypeCastException(value, this, e);
              }
          }
  
          if (value instanceof byte[])
          {
              return Base64.encodeBytes((byte[]) value);
          }
  
          if (value instanceof Blob)
          {
              try
             {
                 final Blob blob = (Blob) value;
                 final byte[] blobValue = blob.getBytes(1, (int) blob.length());
                 return typeCast(blobValue);
             } catch (final SQLException e)
             {
                 throw new TypeCastException(value, this, e);
             }
         }
 
         if (value instanceof Clob)
         {
             try
             {
                 final Clob clobValue = (Clob) value;
                 final int length = (int) clobValue.length();
                 if (length > 0)
                 {
                     return clobValue.getSubString(1, length);
                 }
                 return "";
             } catch (final SQLException e)
             {
                 throw new TypeCastException(value, this, e);
             }
         }
 
         logger.warn(
                 "Unknown/unsupported object type '{}' - "
                         + "will invoke toString() as last fallback which "
                         + "might produce undesired results",
                 value.getClass().getName());
         return value.toString();
     }
 
     @Override
     public Object getSqlValue(final int column, final ResultSet resultSet)
             throws SQLException, TypeCastException
     {
         logger.debug("getSqlValue(column={}, resultSet={}) - start", column,
                 resultSet);
         final String rawValue = resultSet.getString(column);
         final String value = resultSet.wasNull() ? null : rawValue;
         logger.debug("getSqlValue: column={}, value={}", column, value);
         return value;
     }
 
     @Override
     public void setSqlValue(final Object value, final int column,
             final PreparedStatement statement)
             throws SQLException, TypeCastException
     {
         logger.debug("setSqlValue(value={}, column={}, statement={}) - start",
                 value, column, statement);
 
         statement.setString(column, asString(value));
     }
 }