/// <summary>
/// Stores the state of all signals into a string that can be saved to a file.
/// </summary>
/// <param name="rta">Runtime application to store the state of</param>
/// <returns>blob</returns>
private static string signalStateToBlob(NodeRuntimeApplication rta)
{
if (rta == null)
{
throw new ArgumentNullException("rta");
}
var encodedSignals = from signal in rta.Signals select EncodedSignalValue.EncodeSignalValue(signal);
return(string.Join(string.Empty, encodedSignals));
}
private NodeTelegram readSignals(NodeTelegram request)
{
// incoming request should just be a bunch of Guids that represent signalIds
var inPayload = request.Payload.Decode();
var outPayload = new StringBuilder();
if (runtimeApplication != null)
{
for (int index = 0; index < inPayload.Length; index += m_guidLength)
{
string oneGuidString = inPayload.Substring(index, m_guidLength);
if (FieldGuid.CheckSyntax(oneGuidString))
{
var signalId = new FieldGuid(oneGuidString);
var signal = runtimeApplication.FindSignal(signalId);
if (signal != null)
{
outPayload.Append(EncodedSignalValue.EncodeSignalValue(signal));
}
}
}
}
return(request.SetPayload(FieldBase64.Encode(outPayload.ToString())));
}