/// <summary>
/// Creates a client channel sink instance.
/// </summary>
/// <param name="channel">Channel for which the current sink chain is being constructed.</param>
/// <param name="url">The URL of the object to connect to. This parameter can be null if the connection is based entirely on the information contained in the <paramref name="remoteChannelData"/> parameter.</param>
/// <param name="remoteChannelData">A channel data object that describes a channel on the remote server.</param>
/// <returns>
/// The first sink of the newly formed channel sink chain, or null, which indicates that this provider will not or cannot provide a connection for this endpoint.
/// </returns>
/// <exception cref="T:System.Security.SecurityException">The immediate caller does not have infrastructure permission. </exception>
public IClientChannelSink CreateSink(IChannelSender channel, string url, object remoteChannelData)
{
IClientChannelSink nextSink = null;
if (_nextSink != null)
{
// Call CreateSink on the next sink provider in the chain. This will return
// to us the actual next sink object. If the next sink is null, uh oh!
if ((nextSink = _nextSink.CreateSink(channel, url, remoteChannelData)) == null)
return null;
}
InitializeSerializer();
var sink = new EnvelopeClientChannelSink(nextSink, _targetApplicationName, _serializer);
return sink;
}