/// <summary>
/// Loads the configuration from the specified file.
/// </summary>
public bool Load(string fileName, out string errMsg)
{
try
{
SetToDefault();
if (!File.Exists(fileName))
{
throw new FileNotFoundException(string.Format(CommonPhrases.NamedFileNotFound, fileName));
}
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(fileName);
XmlElement rootElem = xmlDoc.DocumentElement;
if (rootElem.SelectSingleNode("GeneralOptions") is XmlNode generalOptionsNode)
{
GeneralOptions.LoadFromXml(generalOptionsNode);
}
if (rootElem.SelectSingleNode("ListenerOptions") is XmlNode listenerOptionsNode)
{
ListenerOptions.LoadFromXml(listenerOptionsNode);
}
if (rootElem.SelectSingleNode("PathOptions") is XmlNode pathOptionsNode)
{
PathOptions.LoadFromXml(pathOptionsNode);
}
HashSet <string> moduleCodes = new HashSet <string>();
if (rootElem.SelectSingleNode("Modules") is XmlNode modulesNode)
{
foreach (XmlElement moduleElem in modulesNode.SelectNodes("Module"))
{
string moduleCode = ScadaUtils.RemoveFileNameSuffixes(moduleElem.GetAttribute("code"));
if (moduleCodes.Add(moduleCode.ToLowerInvariant())) // check uniqueness
{
ModuleCodes.Add(moduleCode);
}
}
}
if (rootElem.SelectSingleNode("Archives") is XmlNode archivesNode)
{
foreach (XmlElement archiveElem in archivesNode.SelectNodes("Archive"))
{
ArchiveConfig archiveConfig = new ArchiveConfig();
archiveConfig.LoadFromXml(archiveElem);
Archives.Add(archiveConfig);
if (archiveConfig.Active && moduleCodes.Add(archiveConfig.Module.ToLowerInvariant()))
{
ModuleCodes.Add(archiveConfig.Module);
}
}
}
errMsg = "";
return(true);
}
catch (Exception ex)
{
errMsg = CommonPhrases.LoadAppConfigError + ": " + ex.Message;
return(false);
}
}