content: /**
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 org.apache.apex.examples.FileToJdbcApp;
  
  import java.util.List;
  
  import org.apache.apex.malhar.lib.db.jdbc.JdbcFieldInfo;
  import org.apache.apex.malhar.lib.db.jdbc.JdbcPOJOInsertOutputOperator;
  import org.apache.apex.malhar.lib.db.jdbc.JdbcTransactionalStore;
  import org.apache.hadoop.conf.Configuration;
  
  import com.google.common.collect.Lists;
  
  import com.datatorrent.api.DAG;
  import com.datatorrent.api.StreamingApplication;
  import com.datatorrent.api.annotation.ApplicationAnnotation;
  
  import static java.sql.Types.INTEGER;
  import static java.sql.Types.VARCHAR;
  
  @ApplicationAnnotation(name = "FileToJdbcCustomParser")
  /**
   * @since 3.8.0
   */
  public class FileToJdbcCustomParser implements StreamingApplication
  {
    @Override
    public void populateDAG(DAG dag, Configuration configuration)
    {
      // create operators
      FileReader fileReader = dag.addOperator("FileReader", FileReader.class);
      CustomParser customParser = dag.addOperator("CustomParser", CustomParser.class);
      JdbcPOJOInsertOutputOperator jdbcOutputOperator = dag.addOperator("JdbcOutput", JdbcPOJOInsertOutputOperator.class);
  
      // configure operators
      jdbcOutputOperator.setFieldInfos(addFieldInfos());
      JdbcTransactionalStore outputStore = new JdbcTransactionalStore();
      jdbcOutputOperator.setStore(outputStore);
  
      // add stream
      dag.addStream("Data", fileReader.output, customParser.input);
      dag.addStream("POJOs", customParser.output, jdbcOutputOperator.input);
    }
  
    /**
     * This method can be modified to have field mappings based on used defined
     * class
     */
    private List<JdbcFieldInfo> addFieldInfos()
    {
      List<JdbcFieldInfo> fieldInfos = Lists.newArrayList();
      fieldInfos.add(new JdbcFieldInfo("ACCOUNT_NO", "accountNumber", JdbcFieldInfo.SupportType.INTEGER, INTEGER));
      fieldInfos.add(new JdbcFieldInfo("NAME", "name", JdbcFieldInfo.SupportType.STRING, VARCHAR));
      fieldInfos.add(new JdbcFieldInfo("AMOUNT", "amount", JdbcFieldInfo.SupportType.INTEGER, INTEGER));
      return fieldInfos;
    }
  }
  
  