/*
    * Copyright 2004-2025 the original author or authors.
    *
    * 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
    *
    *    https://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.ibatis.sqlmap.engine.type;
  
  import com.ibatis.sqlmap.client.extensions.ParameterSetter;
  import com.ibatis.sqlmap.client.extensions.ResultGetter;
  import com.ibatis.sqlmap.client.extensions.TypeHandlerCallback;
  
  import java.io.StringReader;
  import java.sql.Clob;
  import java.sql.SQLException;
  import java.sql.Types;
  
  /**
   * The Class ClobTypeHandlerCallback.
   */
  public class ClobTypeHandlerCallback implements TypeHandlerCallback {
  
    @Override
    public Object getResult(ResultGetter getter) throws SQLException {
      String value;
      Clob clob = getter.getClob();
      if (!getter.wasNull()) {
        int size = (int) clob.length();
        value = clob.getSubString(1, size);
      } else {
        value = null;
      }
  
      return value;
    }
  
    @Override
    public void setParameter(ParameterSetter setter, Object parameter) throws SQLException {
      String s = (String) parameter;
      if (s != null) {
        StringReader reader = new StringReader(s);
        setter.setCharacterStream(reader, s.length());
      } else {
        setter.setNull(Types.CLOB);
      }
    }
  
    @Override
    public Object valueOf(String s) {
      return s;
    }
  
  }