/// <summary>
/// Creates a new attachment.
/// </summary>
/// <param name="id">A correlation id.</param>
/// <param name="payloadName">A payload name.</param>
/// <param name="payloadValue">A payload value.</param>
/// <returns>A new attachment instance.</returns>
public static TAttachment Create <TAttachment, TPayload>(AttachmentId id, string payloadName,
TPayload payloadValue)
where TAttachment : class, IAttachment, new()
{
TAttachment attachment = null;
if (id != AttachmentId.Empty && !string.IsNullOrWhiteSpace(payloadName) &&
!Equals(payloadValue, default(TPayload)))
{
attachment = Activator.CreateInstance <TAttachment>();
attachment.Id = id;
attachment.Name = payloadName;
attachment.Value = payloadValue.Serialize();
}
return(attachment);
}
/// <summary>
/// Creates a new attachment for a stream.
/// </summary>
/// <param name="id">A correlation id.</param>
/// <param name="payloadName">A payload name.</param>
/// <param name="payloadValue">A payload value.</param>
/// <returns>A new attachment instance.</returns>
public static TAttachment Create <TAttachment>(
AttachmentId id,
string payloadName,
Stream payloadValue)
where TAttachment : class, IAttachment, new()
{
TAttachment attachment = null;
if (payloadValue?.Length > 0)
{
using (StreamReader reader = new StreamReader(payloadValue.SetToStart()))
{
attachment = Create <TAttachment, string>(id, payloadName, reader.ReadToEnd());
}
}
return(attachment);
}
/// <summary>
/// Creates a new attachment for an object.
/// </summary>
/// <param name="id">A correlation id.</param>
/// <param name="payloadName">A payload name.</param>
/// <param name="payloadValue">A payload value.</param>
/// <returns>A new attachment instance.</returns>
public static ObjectAttachment Create(AttachmentId id, string payloadName, object payloadValue)
{
return(Create <ObjectAttachment, object>(id, payloadName, payloadValue));
}
/// <summary>
/// Creates a new attachment for an exception.
/// </summary>
/// <param name="id">A correlation id.</param>
/// <param name="payloadName">A payload name.</param>
/// <param name="payloadValue">A payload value.</param>
/// <returns>A new attachment instance.</returns>
public static ExceptionAttachment Create(AttachmentId id, string payloadName, Exception payloadValue)
{
return(Create <ExceptionAttachment, Exception>(id, payloadName, payloadValue));
}