public static void UpdateMQTTfeed(string feedType)
{
string message, topic;
var template = "mqtt/";
if (feedType == "Interval")
{
template += cumulus.MQTTIntervalTemplate;
topic = cumulus.MQTTIntervalTopic;
}
else
{
template += cumulus.MQTTUpdateTemplate;
topic = cumulus.MQTTUpdateTopic;
// Refresh our copy of the template contents if the filename has changed
// We want to avoid reading the template file every few seconds if possible.
if (cumulus.MQTTUpdateTemplate != dataupdateTemplateFile)
{
if (File.Exists(template))
{
try
{
using (TextReader reader = new StreamReader(template, new System.Text.UTF8Encoding(false)))
{
dataupdateTemplateContent = reader.ReadToEnd();
}
}
catch (Exception e)
{
cumulus.LogMessage($"MQTT: Error reading template file {template} - {e.Message}");
return;
}
dataupdateTemplateFile = cumulus.MQTTUpdateTemplate;
}
else
{
cumulus.LogMessage($"MQTT: Error, unable to find template file - {template}");
return;
}
}
}
if (File.Exists(template))
{
// use template file
cumulus.LogDebugMessage($"MQTT: Using template - {template}");
var mqttTokenParser = new TokenParser();
var encoding = new System.Text.UTF8Encoding(false);
mqttTokenParser.encoding = encoding;
mqttTokenParser.OnToken += cumulus.TokenParserOnToken;
if (feedType == "Interval")
{
mqttTokenParser.SourceFile = template;
message = mqttTokenParser.ToString();
}
else
{
mqttTokenParser.InputText = dataupdateTemplateContent;
message = mqttTokenParser.ToStringFromString();
}
// send the message
_ = SendMessageAsync(topic, message);
}
}
