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.malhar.contrib.elasticsearch;
  
  import java.io.IOException;
  
  import javax.validation.constraints.NotNull;
  
  import org.elasticsearch.action.percolate.PercolateResponse;
  
  import com.datatorrent.api.DefaultInputPort;
  import com.datatorrent.api.DefaultOutputPort;
  import com.datatorrent.common.util.BaseOperator;
  import com.datatorrent.netlet.util.DTThrowable;
  
  /**
   * Percolate operator for ElasticSearch
   *
   * @category Output
   * @tags elastic search
   * @since 2.1.0
   */
  public class ElasticSearchPercolatorOperator extends BaseOperator
  {
    @NotNull
    public String hostName;
    public int port;
  
    @NotNull
    public String indexName;
    @NotNull
    public String documentType;
  
    protected transient ElasticSearchPercolatorStore store;
    public final transient DefaultOutputPort<PercolateResponse> outputPort = new DefaultOutputPort<PercolateResponse>();
  
    public final transient DefaultInputPort<Object> inputPort = new DefaultInputPort<Object>()
    {
      /*
       * (non-Javadoc)
       *
       * @see com.datatorrent.api.DefaultInputPort#process(java.lang.Object)
       */
      @Override
      public void process(Object tuple)
      {
  
        PercolateResponse response = store.percolate(new String[] {indexName}, documentType, tuple);
        outputPort.emit(response);
      }
    };
  
    public void setup(com.datatorrent.api.Context.OperatorContext context)
    {
      store = new ElasticSearchPercolatorStore(hostName, port);
      try {
        store.connect();
      } catch (IOException e) {
        DTThrowable.rethrow(e);
      }
    }
  
    /* (non-Javadoc)
     * @see com.datatorrent.common.util.BaseOperator#teardown()
     */
    @Override
    public void teardown()
    {
      super.teardown();
      try {
        store.disconnect();
      } catch (IOException e) {
        DTThrowable.rethrow(e);
      }
    }
  }
  