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.rabbitmq;
  
  import com.datatorrent.api.DefaultInputPort;
  
  /**
   * This is the base implementation of a single port RabbitMQ output operator.&nbsp;
   * Subclasses should implement the methods which convert tuples to RabbitMQ messages.
   * <p>
   * Ports:<br>
   * <b>Input</b>: Can have one input port<br>
   * <b>Output</b>: no output port<br>
   * <br>
   * Properties:<br>
   * None<br>
   * <br>
   * Compile time checks:<br>
   * None<br>
   * <br>
   * Run time checks:<br>
   * None<br>
   * <br>
   * <b>Benchmarks</b>: Blast as many tuples as possible in inline mode<br>
   * <table border="1" cellspacing=1 cellpadding=1 summary="Benchmark table for AbstractSinglePortRabbitMQOutputOperator&lt;K,V extends Number&gt; operator template">
   * <tr><th>In-Bound</th><th>Out-bound</th><th>Comments</th></tr>
   * <tr><td>One tuple per key per window per port</td><td><b>10 thousand K,V pairs/s</td><td>Out-bound rate is the main determinant of performance. Operator can process about 10 thousand unique (k,v immutable pairs) tuples/sec as RabbitMQ DAG. Tuples are assumed to be
   * immutable. If you use mutable tuples and have lots of keys, the benchmarks may differ</td></tr>
   * </table><br>
   * </p>
   * @displayName Abstract Single Port RabbitMQ Output
   * @category Messaging
   * @tags output operator
   *
   * @since 0.3.2
   */
  public abstract class AbstractSinglePortRabbitMQOutputOperator<T> extends AbstractRabbitMQOutputOperator
  {
    /**
     * Users need to provide conversion of Tuple to message
     * @param tuple
     */
    public abstract void processTuple(T tuple);
  
    public final transient DefaultInputPort<T> inputPort = new DefaultInputPort<T>()
    {
      @Override
      public void process(T tuple)
      {
        if (!skipProcessingTuple) {
          processTuple(tuple); // This is an abstract call
        }
      }
    };
  }
  