public CoapBlockWiseContext(CoapClient client, CoapMessage request, CoapMessage response = null)
{
Client = client
?? throw new ArgumentNullException(nameof(client));
Request = request?.Clone(true)
?? throw new ArgumentNullException(nameof(request));
Response = response?.Clone(true);
}
/// <summary>
/// Attempts to read the entire body of the block-wise message. Using the <paramref name="originalRequest"/> to request blocks.
/// </summary>
/// <param name="message">A message containing a <see cref="Block2"/> option.</param>
/// <param name="client"></param>
/// <param name="originalRequest">The orignal request which the block-wise response was for.</param>
/// <returns>The completed body for the block-wise messages.</returns>
public static byte[] GetCompletedBlockWisePayload(this CoapMessage message, CoapClient client, CoapMessage originalRequest)
{
var block2 = message.Options.Get <Options.Block2>()
?? throw new ArgumentException($"{nameof(CoapMessage)} does not contain a {nameof(Options.Block2)} option", nameof(message));
if (originalRequest == null)
{
throw new ArgumentNullException("Please provide original requesting message", nameof(originalRequest));
}
if (block2.BlockNumber != 0)
{
throw new CoapBlockException($"Can not get completed payload starting with block {block2.BlockNumber}. Please start from 0");
}
var memoryStream = new MemoryStream();
using (var reader = new CoapBlockStreamReader(client, message, originalRequest))
reader.CopyTo(memoryStream);
return(memoryStream.ToArray());
}
public static CoapBlockWiseContext CreateBlockWiseContext(this CoapMessage message, CoapClient client, CoapMessage response = null)
{
if (!message.Code.IsRequest())
{
throw new ArgumentException($"A block-Wise context requires a base request message. Message code {message.Code} is invalid.", nameof(message));
}
if (response != null && response.Code.IsRequest())
{
throw new ArgumentException($"A block-Wise context response can not be set from a message code {message.Code}.", nameof(response));
}
return(new CoapBlockWiseContext(client, message, response));
}
