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.extract.extractor;
  
  import com.alibaba.otter.node.common.config.ConfigClientService;
  import com.alibaba.otter.node.etl.common.db.dialect.DbDialect;
  import com.alibaba.otter.node.etl.common.db.dialect.DbDialectFactory;
  import com.alibaba.otter.shared.common.model.config.ConfigHelper;
  import com.alibaba.otter.shared.common.model.config.data.DataMedia;
  import com.alibaba.otter.shared.common.model.config.data.db.DbMediaSource;
  import com.alibaba.otter.shared.common.model.config.pipeline.Pipeline;
  
  /**
   * 单条记录处理的extractor
   * 
   * @author jianghang 2012-4-18 下午04:12:39
   * @version 4.0.2
   */
  public abstract class AbstractExtractor<P> implements OtterExtractor<P> {
  
      protected ConfigClientService configClientService;
      protected DbDialectFactory    dbDialectFactory;
  
      protected DbDialect getDbDialect(Long pipelineId, Long tableId) {
          DataMedia dataMedia = ConfigHelper.findDataMedia(getPipeline(pipelineId), tableId);
          return dbDialectFactory.getDbDialect(pipelineId, (DbMediaSource) dataMedia.getSource());
      }
  
      protected Pipeline getPipeline(Long pipelineId) {
          return configClientService.findPipeline(pipelineId);
      }
  
      // ==================== setter / getter =====================
  
      public void setConfigClientService(ConfigClientService configClientService) {
          this.configClientService = configClientService;
      }
  
      public void setDbDialectFactory(DbDialectFactory dbDialectFactory) {
          this.dbDialectFactory = dbDialectFactory;
      }
  
  }
  