content: /*
   * Copyright (C) 2010-2101 Alibaba Group Holding Limited.
   *
   * 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.otter.node.etl.common.db.dialect;
  
  import org.apache.commons.lang.StringUtils;
  import org.springframework.jdbc.core.JdbcTemplate;
  import org.springframework.jdbc.support.lob.LobHandler;
  
  import com.alibaba.otter.node.etl.common.db.dialect.mysql.MysqlDialect;
  import com.alibaba.otter.node.etl.common.db.dialect.oracle.OracleDialect;
  import com.alibaba.otter.shared.common.model.config.data.DataMediaType;
  
  /**
   * @author zebin.xuzb @ 2012-8-8
   * @version 4.1.0
   */
  public class DbDialectGenerator {
  
      protected static final String ORACLE      = "oracle";
      protected static final String MYSQL       = "mysql";
      protected static final String TDDL_GROUP  = "TGroupDatabase";
      protected static final String TDDL_CLIENT = "TDDL";
  
      protected LobHandler          defaultLobHandler;
      protected LobHandler          oracleLobHandler;
  
      protected DbDialect generate(JdbcTemplate jdbcTemplate, String databaseName, String databaseNameVersion,
                                   int databaseMajorVersion, int databaseMinorVersion, DataMediaType dataMediaType) {
          DbDialect dialect = null;
  
          if (StringUtils.startsWithIgnoreCase(databaseName, ORACLE)) { // for
                                                                        // oracle
              dialect = new OracleDialect(jdbcTemplate,
                  oracleLobHandler,
                  databaseName,
                  databaseMajorVersion,
                  databaseMinorVersion);
          } else if (StringUtils.startsWithIgnoreCase(databaseName, MYSQL)) { // for
                                                                              // mysql
              dialect = new MysqlDialect(jdbcTemplate,
                  defaultLobHandler,
                  databaseName,
                  databaseNameVersion,
                  databaseMajorVersion,
                  databaseMinorVersion);
          } else if (StringUtils.startsWithIgnoreCase(databaseName, TDDL_GROUP)) { // for
                                                                                   // tddl
                                                                                   // group
              throw new RuntimeException(databaseName + " type is not support!");
          } else if (StringUtils.startsWithIgnoreCase(databaseName, TDDL_CLIENT)) {
              throw new RuntimeException(databaseName + " type is not support!");
          }
  
          // diamond is delegated to mysql/oracle, so don't need to extend here
  
          return dialect;
      }
  
      // ======== setter =========
      public void setDefaultLobHandler(LobHandler defaultLobHandler) {
          this.defaultLobHandler = defaultLobHandler;
      }
  
      public void setOracleLobHandler(LobHandler oracleLobHandler) {
          this.oracleLobHandler = oracleLobHandler;
      }
  }
  