private void CheckForValidityAndThrowIfSomethingIsWrong(ClientPropertyMetadata creationOptions)
{
var errorList = new ArrayList();
var warningList = new ArrayList();
var isMetadataOk = creationOptions.ValidateAndFix(ref errorList, ref warningList);
if (isMetadataOk == false)
{
var errorMessage = $"Provided metadata is incorrect. Errors: ";
foreach (var problem in errorList)
{
errorMessage += problem + " ";
}
throw new ArgumentException(errorMessage);
}
}
private static bool TryParseProperties(ref ArrayList unparsedTopicList, ref ArrayList parsedTopicList, string baseTopic, ref ClientDeviceMetadata candidateDevice, ref ArrayList errorList, ref ArrayList warningList)
{
var isParseSuccessful = false;
for (var n = 0; n < candidateDevice.Nodes.Length; n++)
{
var candidatePropertyIds = ((string)candidateDevice.Nodes[n].AllAttributes["$properties"]).Split(',');
var goodProperties = new ArrayList();
for (var p = 0; p < candidatePropertyIds.Length; p++)
{
var candidateProperty = new ClientPropertyMetadata()
{
NodeId = candidateDevice.Nodes[n].Id, PropertyId = candidatePropertyIds[p]
};
// Parsing property attributes and value.
var attributeRegex = new Regex($@"^({baseTopic})\/({candidateDevice.Id})\/({candidateDevice.Nodes[n].Id})\/({candidateProperty.PropertyId})(\/\$[a-z0-9][a-z0-9-]+)?(:)(.+)$");
var setRegex = new Regex($@"^({baseTopic})\/({candidateDevice.Id})\/({candidateDevice.Nodes[n].Id})\/({candidateProperty.PropertyId})(\/set)(:)(.+)$");
var valueRegex = new Regex($@"^({baseTopic})\/({candidateDevice.Id})\/({candidateDevice.Nodes[n].Id})\/({candidateProperty.PropertyId})()(:)(.+)$");
var isSettable = false;
var isRetained = false;
var isNameReceived = false;
var isDataTypeReceived = false;
var isSettableReceived = false;
var isRetainedReceived = false;
foreach (string inputString in unparsedTopicList)
{
var attributeMatch = attributeRegex.Match(inputString);
if (attributeMatch.Success)
{
var key = attributeMatch.Groups[5].Value;
var value = attributeMatch.Groups[7].Value;
if (key == "/$name")
{
candidateProperty.Name = value;
isNameReceived = true;
}
if (key == "/$datatype")
{
if (Helpers.TryParseHomieDataType(value, out var parsedType))
{
candidateProperty.DataType = parsedType;
isDataTypeReceived = true;
}
;
}
if (key == "/$format")
{
candidateProperty.Format = value;
}
if (key == "/$settable")
{
if (Helpers.TryParseBool(value, out isSettable))
{
isSettableReceived = true;
}
}
if (key == "/$retained")
{
if (Helpers.TryParseBool(value, out isRetained))
{
isRetainedReceived = true;
}
;
}
if (key == "/$unit")
{
candidateProperty.Unit = value;
}
parsedTopicList.Add(inputString);
}
var setMatch = setRegex.Match(inputString);
if (setMatch.Success)
{
// Discarding this one. This is a historically cached command, and these should not execute during initialization. Besides, it shouldn't be retained,
// so the fact that we're here means something is wrong with the host side.
warningList.Add($"{candidateDevice.Id}/{candidateProperty} has /set topic assigned, which means /set message is published as retained. This is against Homie convention.");
}
var valueMatch = valueRegex.Match(inputString);
if (valueMatch.Success)
{
var value = attributeMatch.Groups[7].Value;
candidateProperty.InitialValue = value;
}
}
foreach (var parsedTopic in parsedTopicList)
{
unparsedTopicList.Remove(parsedTopic);
}
// Basic data extraction is done. Now we'll validate if values of the fields are compatible with each other and also YAHI itself.
var isOk = isNameReceived & isDataTypeReceived & isSettableReceived & isRetainedReceived;
if (isOk)
{
// Setting property type.
if ((isSettable == false) && (isRetained == true))
{
candidateProperty.PropertyType = PropertyType.State;
}
if ((isSettable == true) && (isRetained == false))
{
candidateProperty.PropertyType = PropertyType.Command;
}
if ((isSettable == true) && (isRetained == true))
{
candidateProperty.PropertyType = PropertyType.Parameter;
}
if ((isSettable == false) && (isRetained == false))
{
errorList.Add($"{candidateDevice.Id}/{candidateProperty.NodeId}/{candidateProperty.PropertyId} has all mandatory fields set, but this retainability and settability configuration is not supported by YAHI. Skipping this property entirely.");
isOk = false;
}
}
else
{
// Some of the mandatory topic were not received. Can't let this property through.
errorList.Add($"{candidateDevice.Id}/{candidateProperty.NodeId}/{candidateProperty.PropertyId} is defined, but mandatory attributes are missing. Skipping this property entirely.");
isOk = false;
}
// Validating by property data type, because rules are very different for each of those.
if (isOk)
{
var tempErrorList = new ArrayList();
var tempWarningList = new ArrayList();
// ValidateAndFix method does not know anythin about device it is parsing, thus doing some wrapping around error and warning lists (because I want device info in those).
isOk = candidateProperty.ValidateAndFix(ref tempErrorList, ref tempWarningList);
foreach (var error in tempErrorList)
{
errorList.Add($"{candidateDevice.Id}/{error}");
}
foreach (var warning in tempWarningList)
{
warningList.Add($"{candidateDevice.Id}/{warning}");
}
}
if (isOk)
{
goodProperties.Add(candidateProperty);
}
}
// Converting local temporary property lists to final arrays.
candidateDevice.Nodes[n].Properties = new ClientPropertyMetadata[goodProperties.Count];
for (var i = 0; i < goodProperties.Count; i++)
{
candidateDevice.Nodes[n].Properties[i] = (ClientPropertyMetadata)goodProperties[i];
}
}
// Converting local temporary node lists to final arrays and returning.
foreach (var node in candidateDevice.Nodes)
{
if (node.Properties.Length > 0)
{
isParseSuccessful = true;
}
}
return(isParseSuccessful);
}