modules/platforms/dotnet/examples/Apache.Ignite.ExamplesDll/Messaging/RemoteOrderedListener.cs

/*
 * 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.
 */

namespace Apache.Ignite.ExamplesDll.Messaging
{
    using System;
    using Apache.Ignite.Core;
    using Apache.Ignite.Core.Messaging;
    using Apache.Ignite.Core.Resource;

    /// <summary>
    /// Listener for Ordered topic.
    /// </summary>
    [Serializable]
    public class RemoteOrderedListener : IMessageListener<int>
    {
        /** Injected Ignite instance. */
        [InstanceResource]
#pragma warning disable 649
        private readonly IIgnite _ignite;
#pragma warning restore 649

        /// <summary>
        /// Receives a message and returns a value 
        /// indicating whether provided message and node id satisfy this predicate.
        /// Returning false will unsubscribe this listener from future notifications.
        /// </summary>
        /// <param name="nodeId">Node identifier.</param>
        /// <param name="message">Message.</param>
        /// <returns>Value indicating whether provided message and node id satisfy this predicate.</returns>
        public bool Invoke(Guid nodeId, int message)
        {
            Console.WriteLine("Received ordered message [msg={0}, fromNodeId={1}]", message, nodeId);

            _ignite.GetCluster().ForNodeIds(nodeId).GetMessaging().Send(message, Topic.Ordered);

            return true;
        }
    }
}