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using Google.Protobuf;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reactive.Subjects;
using System.Text;
using System.Threading.Tasks;
using Tango.PMR;
namespace Tango.Transport
{
/// <summary>
/// Represents a generic transport message.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <seealso cref="Tango.Transport.TransportMessageBase" />
internal class TransportMessage<T> : TransportMessageBase
{
private TaskCompletionSource<T> _completionSource;
public Subject<T> ContinuesResponseSubject { get; set; }
public bool AtLeastOneResponseReceived { get; set; }
/// <summary>
/// Initializes a new instance of the <see cref="TransportMessage{T}"/> class.
/// </summary>
/// <param name="token">The token.</param>
/// <param name="message">The message.</param>
/// <param name="direction">The direction.</param>
/// <param name="toBytes">To bytes.</param>
/// <param name="completionSource">The completion source.</param>
public TransportMessage(string token, object message, TransportMessageDirection direction, Func<byte[]> toBytes, TaskCompletionSource<T> completionSource) : base(token, message, direction, toBytes)
{
_completionSource = completionSource;
}
/// <summary>
/// Notifies the message observer of the new result.
/// </summary>
/// <param name="result">The result.</param>
public override void SetResult(object result, bool completed)
{
if (!IsContinuous)
{
_completionSource.SetResult((T)result);
}
else
{
AtLeastOneResponseReceived = true;
ContinuesResponseSubject.OnNext((T)result);
if (completed)
{
ContinuesResponseSubject.OnCompleted();
}
}
}
/// <summary>
/// Notifies the message observer of an exception.
/// </summary>
/// <param name="ex">The ex.</param>
public override void SetException(Exception ex)
{
if (!IsContinuous)
{
_completionSource.SetException(ex);
}
else
{
AtLeastOneResponseReceived = true;
ContinuesResponseSubject.OnError(ex);
}
}
}
}
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