internal static MultiProtocolRequest CreateRequest(IEnumerable <byte> data, ResponseInfo responseInfo)
{
return(new MultiProtocolRequest(default, RequestAddress.NONE, default, responseInfo)
MultiProtocolRequest(byte deviceId, RequestAddress address, bool isWriteRequest, ResponseInfo responseInfo)
: this(deviceId, address, isWriteRequest, responseInfo, new IDataEntity[0])
{
}
MultiProtocolRequest(byte deviceId, RequestAddress address, bool isWriteRequest, ResponseInfo responseInfo, IEnumerable <IDataEntity> dataEntities)
{
DeviceId = deviceId;
Address = address;
IsWriteRequest = isWriteRequest;
var addressInfo = Address.GetInfo();
_responseInfo = responseInfo;
_hasLengthField = _responseInfo.ResponseFullLength.IsUnknown;
if (address != RequestAddress.NONE)
{
_commandWords = new ushort[]
{
(ushort)((DeviceId << 9) | ((~0x80) & Address.GetInfo().Address) | (IsWriteRequest ? 1 << 7 : 0)),
0x0000
};
_header = wordsToBytes(_commandWords).ToArray();
}
Serialized = serialize(dataEntities);
IEnumerable <byte> serialize(IEnumerable <IDataEntity> entities)
{
if (address == RequestAddress.NONE)
{
return(new byte[0]);
}
else
{
var dataBytes = entities
.Select(e => e.RawValue)
.Flatten()
.ToArray();
var zeroTrailShouldBeAdded = dataBytes.Length % 2 == 1;
var actualLength = zeroTrailShouldBeAdded
? dataBytes.Length + 1
: dataBytes.Length;
var requestBytes = new Enumerable <byte>()
{
_header,
IsWriteRequest // If there is data - we need to add length of the data
? wordsToBytes(((ushort)actualLength).ToSequence())
: new byte[0],
dataBytes,
zeroTrailShouldBeAdded
? new byte[1]
: new byte[0]
};
requestBytes.Add(wordsToBytes(_checksum.ComputeChecksum(requestBytes).ToSequence()));
return(requestBytes);
}
}
}
MultiProtocolRequest(ResponseInfo responseInfo)
: this(default, RequestAddress.NONE, default, responseInfo, new IDataEntity[0])
{
}
