/*
* 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.
*/

using System;

using Apache.Geode.Client;

namespace Apache.Geode.Examples.ContinuousQuery
{
  public class MyCqListener<TKey, TResult> : ICqListener<TKey, TResult>
  {
    public virtual void OnEvent(CqEvent<TKey, TResult> ev)
    {
      Order val = ev.getNewValue() as Order;
      TKey key = ev.getKey();
      string operationType = "UNKNOWN";

      switch (ev.getQueryOperation())
      {
        case CqOperation.OP_TYPE_CREATE:
          operationType = "CREATE";
          break;
        case CqOperation.OP_TYPE_UPDATE:
          operationType = "UPDATE";
          break;
        case CqOperation.OP_TYPE_DESTROY:
          operationType = "DESTROY";
          break;
        default:
          Console.WriteLine("Unexpected operation encountered {0}", ev.getQueryOperation());
          break;
      }

      if (val != null)
      {
        Console.WriteLine("MyCqListener::OnEvent({0}) called with key {1}, value {2}", operationType, key, val.ToString());
      }
      else
      {
        Console.WriteLine("MyCqListener::OnEvent({0}) called with key {1}, value null", operationType, key);
      }
    }

    public virtual void OnError(CqEvent<TKey, TResult> ev)
    {
      Console.WriteLine("MyCqListener::OnError called");
    }

    public virtual void Close()
    {
      Console.WriteLine("MyCqListener::close called");
    }
  }
}