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.ftp;
  
  import org.apache.apex.malhar.lib.fs.GenericFileOutputOperator.StringFileOutputOperator;
  import org.apache.apex.malhar.lib.io.AbstractFTPInputOperator.FTPStringInputOperator;
  import org.apache.hadoop.conf.Configuration;
  
  import com.datatorrent.api.DAG;
  import com.datatorrent.api.StreamingApplication;
  import com.datatorrent.api.annotation.ApplicationAnnotation;
  
  /**
   * This application demonstrates the FTPStringInputOperator. It uses the FTPStringInputOperator which reads
   * data from a directory on an FTP server, and then writes it to a file using the  StringFileOutputOperator.
   *
   * @since 3.8.0
   */
  @ApplicationAnnotation(name = "FTPInputExample")
  public class Application implements StreamingApplication
  {
  
    @Override
    public void populateDAG(DAG dag, Configuration conf)
    {
      // ftp read operator. Configuration through resources/META-INF/properties.xml
      FTPStringInputOperator reader = dag.addOperator("Reader", new FTPStringInputOperator());
      //Set properties for the FTP input operator
      reader.setHost("localhost");
      reader.setUserName("ftp");
      reader.setDirectory("sourceDir");
      reader.setPartitionCount(2);
  
      // writer that writes strings to a file on hdfs
      StringFileOutputOperator writer = dag.addOperator("Writer", new StringFileOutputOperator());
      //Set properties for the output operator
      writer.setFilePath("malhar_examples/ftp");
      writer.setFilePath("destination");
  
      //Connect reader output to writer
      dag.addStream("data", reader.output, writer.input);
    }
  
  }
  