public void TestServer()
{
// We do not test for block 0 because the client is currently unable to
// know if the user attempts to just retrieve block 0 or if he wants to
// do early block negotiation with a specific size but actually wants to
// retrieve all blocks.
Int32[] blockOrder = { 2, 1, 3 };
String[] expectations =
{
RESPONSE_PAYLOAD.Substring(32 /* until the end */),
RESPONSE_PAYLOAD.Substring(16, 16),
null // block is out of bounds
};
for (Int32 i = 0; i < blockOrder.Length; i++)
{
Int32 num = blockOrder[i];
Console.WriteLine("Request block number " + num);
Int32 szx = BlockOption.EncodeSZX(16);
Request request = Request.NewGet();
request.URI = new Uri("coap://localhost:" + _serverPort + "/" + TARGET);
request.SetBlock2(szx, false, num);
request.Send();
Response response = request.WaitForResponse(1000);
Assert.IsNotNull(response);
Assert.AreEqual(expectations[i], response.PayloadString);
Assert.IsTrue(response.HasOption(OptionType.Block2));
Assert.AreEqual(num, response.Block2.NUM);
Assert.AreEqual(szx, response.Block2.SZX);
}
}
/// <summary>
/// Converts a BlockOption with the specified parameters to a byte array and
/// back and checks that the result is the same as the original.
/// </summary>
private void TestCombined(Int32 szx, Boolean m, Int32 num)
{
BlockOption block = new BlockOption(OptionType.Block1, num, szx, m);
BlockOption copy = new BlockOption(OptionType.Block1);
copy.RawValue = block.RawValue;
Assert.AreEqual(block.SZX, copy.SZX);
Assert.AreEqual(block.M, copy.M);
Assert.AreEqual(block.NUM, copy.NUM);
}
/// <summary>
/// Converts a BlockOption with the specified parameters to a byte array and
/// back and checks that the result is the same as the original.
/// </summary>
private void TestCombined(Int32 szx, Boolean m, Int32 num)
{
BlockOption block = new BlockOption(OptionType.Block1, num, szx, m);
BlockOption copy = new BlockOption(OptionType.Block1);
copy.RawValue = block.RawValue;
Assert.AreEqual(block.SZX, copy.SZX);
Assert.AreEqual(block.M, copy.M);
Assert.AreEqual(block.NUM, copy.NUM);
}
/// <summary>
/// Places a new response to this request, e.g. to answer it
/// </summary>
/// <param name="response"></param>
public void Respond(Response response)
{
response.Request = this;
response.Communicator = this.Communicator;
response.PeerAddress = this.PeerAddress;
if (_responseCount == 0 && IsConfirmable)
{
response.ID = this.ID;
}
// TODO 枚举不能与null比较
//if (null == response.Type)
{
if (_responseCount == 0 && IsConfirmable)
{
// use piggy-backed response
response.Type = MessageType.ACK;
}
else
{
// use separate response:
// Confirmable response to confirmable request,
// Non-confirmable response to non-confirmable request
response.Type = this.Type;
}
}
if (response.Code != CoAP.Code.Empty)
{
response.Token = this.Token;
response.RequiresToken = this.RequiresToken;
// echo block1 option
BlockOption block1 = (BlockOption)GetFirstOption(OptionType.Block1);
if (null != block1)
{
// TODO: block1.setM(false); maybe in TransferLayer
response.AddOption(block1);
}
}
_responseCount++;
Response = response;
// Endpoint will call SendResponse();
}
protected Request Prepare(Request request, IEndPoint endpoint)
{
request.Type = _type;
request.URI = _uri;
if (_blockwise != 0)
{
request.SetBlock2(BlockOption.EncodeSZX(_blockwise), false, 0);
}
if (endpoint != null)
{
request.EndPoint = endpoint;
}
return(request);
}
/// <summary>
/// Helper function that creates a BlockOption with the specified parameters
/// and serializes them to a byte array.
/// </summary>
private Byte[] ToBytes(Int32 szx, Boolean m, Int32 num)
{
Byte[] bytes = new BlockOption(OptionType.Block1, num, szx, m).RawValue;
return bytes;
}
/// <summary>
/// Helper function that creates a BlockOption with the specified parameters
/// and serializes them to a byte array.
/// </summary>
private Byte[] ToBytes(Int32 szx, Boolean m, Int32 num)
{
Byte[] bytes = new BlockOption(OptionType.Block1, num, szx, m).RawValue;
return(bytes);
}
