public DefaultChannelMessageDispatchContext(IMessagingChannel channel, ChannelMessage channelMessage)
{
if (channel == null)
throw new ArgumentNullException("channel");
if (channelMessage == null)
throw new ArgumentNullException("channelMessage");
this.channel = channel;
this.channelMessage = channelMessage;
}
/// <summary>
/// Initializes a new instance of the ChannelEnvelope class.
/// </summary>
/// <param name="message">The message to be dispatched</param>
/// <param name="recipients">The collection of recipients to which the message will be sent</param>
public ChannelEnvelope(ChannelMessage message, IEnumerable<Uri> recipients)
: this()
{
if (message == null)
throw new ArgumentNullException("message");
if (recipients == null)
throw new ArgumentNullException("recipients");
this.Message = message;
var immutable = new ReadOnlyCollection<Uri>(recipients.Where(x => x != null).ToArray());
this.Recipients = immutable;
if (immutable.Count == 0)
throw new ArgumentException("No recipients were provided.", "recipients");
}
public virtual ChannelMessage Build(
Guid correlationId,
Uri returnAddress,
IDictionary<string, string> headers,
ICollection<object> messages)
{
var message = new ChannelMessage(Guid.NewGuid(), correlationId, returnAddress, headers, messages)
{
Expiration = DateTime.MaxValue,
Persistent = true
};
var primaryType = message.Messages.Count > 0 ? message.Messages.First().GetType() : null;
if (primaryType == null)
return message;
message.Persistent = !this.transient.Contains(primaryType);
TimeSpan timeToLive;
if (this.expirations.TryGetValue(primaryType, out timeToLive))
message.Expiration = SystemTime.UtcNow + timeToLive;
return message;
}
protected static void Build(IMessagingChannel channel, ChannelMessage channelMessage)
{
dispatchContext = new DefaultChannelMessageDispatchContext(channel, channelMessage);
}