/// <summary>
/// Clears the configuration.
/// </summary>
private void Clear()
{
ExtensionCodes = new List <string>();
FileAssociations = new SortedList <string, string>();
ChannelNumberingOptions = new ChannelNumberingOptions();
CustomOptions = new SortedList <string, OptionList>();
}
/// <summary>
/// Loads the configuration from the specified file.
/// </summary>
public bool Load(string fileName, out string errMsg)
{
try
{
Clear();
XmlDocument xmlDoc = new();
xmlDoc.Load(fileName);
XmlElement rootElem = xmlDoc.DocumentElement;
if (rootElem.SelectSingleNode("Extensions") is XmlNode modulesNode)
{
HashSet <string> extensionCodes = new();
foreach (XmlElement moduleElem in modulesNode.SelectNodes("Extension"))
{
string moduleCode = ScadaUtils.RemoveFileNameSuffixes(moduleElem.GetAttribute("code"));
if (extensionCodes.Add(moduleCode.ToLowerInvariant())) // check uniqueness
{
ExtensionCodes.Add(moduleCode);
}
}
}
if (rootElem.SelectSingleNode("FileAssociations") is XmlNode fileAssociationsNode)
{
foreach (XmlElement associationElem in fileAssociationsNode.SelectNodes("Association"))
{
string ext = associationElem.GetAttrAsString("ext").ToLowerInvariant();
string path = associationElem.GetAttrAsString("path");
FileAssociations[ext] = path;
}
}
if (rootElem.SelectSingleNode("ChannelNumberingOptions") is XmlNode channelNumberingOptionsNode)
{
ChannelNumberingOptions.LoadFromXml(channelNumberingOptionsNode);
}
if (rootElem.SelectSingleNode("CustomOptions") is XmlNode customOptionsNode)
{
foreach (XmlElement optionGroupElem in customOptionsNode.SelectNodes("OptionGroup"))
{
OptionList optionList = new();
optionList.LoadFromXml(optionGroupElem);
CustomOptions[optionGroupElem.GetAttrAsString("name")] = optionList;
}
}
errMsg = "";
return(true);
}
catch (Exception ex)
{
errMsg = ex.BuildErrorMessage(CommonPhrases.LoadConfigError);
return(false);
}
}
/// <summary>
/// Saves the configuration to the specified file.
/// </summary>
public bool Save(string fileName, out string errMsg)
{
try
{
XmlDocument xmlDoc = new();
XmlDeclaration xmlDecl = xmlDoc.CreateXmlDeclaration("1.0", "utf-8", null);
xmlDoc.AppendChild(xmlDecl);
XmlElement rootElem = xmlDoc.CreateElement("ScadaAdminConfig");
xmlDoc.AppendChild(rootElem);
XmlElement extensionsElem = rootElem.AppendElem("Extensions");
foreach (string extensionCode in ExtensionCodes)
{
extensionsElem.AppendElem("Extension").SetAttribute("code", extensionCode);
}
XmlElement fileAssociationsElem = rootElem.AppendElem("FileAssociations");
foreach (KeyValuePair <string, string> pair in FileAssociations)
{
XmlElement associationElem = fileAssociationsElem.AppendElem("Association");
associationElem.SetAttribute("ext", pair.Key);
associationElem.SetAttribute("path", pair.Value);
}
ChannelNumberingOptions.SaveToXml(rootElem.AppendElem("ChannelNumberingOptions"));
XmlElement customOptionsElem = rootElem.AppendElem("CustomOptions");
foreach (KeyValuePair <string, OptionList> pair in CustomOptions)
{
XmlElement optionGroupElem = customOptionsElem.AppendElem("OptionGroup");
optionGroupElem.SetAttribute("name", pair.Key);
pair.Value.SaveToXml(optionGroupElem);
}
xmlDoc.Save(fileName);
errMsg = "";
return(true);
}
catch (Exception ex)
{
errMsg = ex.BuildErrorMessage(CommonPhrases.SaveConfigError);
return(false);
}
}
