content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * 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 com.alibaba.druid.support.spring;
  
  import org.springframework.jdbc.support.lob.AbstractLobHandler;
  import org.springframework.jdbc.support.lob.LobCreator;
  
  import java.io.InputStream;
  import java.io.Reader;
  import java.sql.Blob;
  import java.sql.Clob;
  import java.sql.ResultSet;
  import java.sql.SQLException;
  
  public class DruidLobHandler extends AbstractLobHandler {
      public byte[] getBlobAsBytes(ResultSet rs, int columnIndex) throws SQLException {
          Blob blob = rs.getBlob(columnIndex);
  
          if (blob == null) {
              return null;
          }
  
          return blob.getBytes(1, (int) blob.length());
      }
  
      public InputStream getBlobAsBinaryStream(ResultSet rs, int columnIndex) throws SQLException {
          Blob blob = rs.getBlob(columnIndex);
  
          if (blob == null) {
              return null;
          }
  
          return blob.getBinaryStream();
      }
  
      public String getClobAsString(ResultSet rs, int columnIndex) throws SQLException {
          Clob clob = rs.getClob(columnIndex);
  
          if (clob == null) {
              return null;
          }
  
          return clob.getSubString(1, (int) clob.length());
      }
  
      public InputStream getClobAsAsciiStream(ResultSet rs, int columnIndex) throws SQLException {
          Clob clob = rs.getClob(columnIndex);
  
          if (clob == null) {
              return null;
          }
  
          return clob.getAsciiStream();
      }
  
      public Reader getClobAsCharacterStream(ResultSet rs, int columnIndex) throws SQLException {
          Clob clob = rs.getClob(columnIndex);
  
          if (clob == null) {
              return null;
          }
  
          return clob.getCharacterStream();
      }
  
      @Override
      public LobCreator getLobCreator() {
          return new DruidLobCreator();
      }
  
  }
  