public bool IsVarDefined(string name)
{
if (_varsDic != null && _varsDic.ContainsKey(name))
{
return(true);
}
return(_parent != null && _parent.IsVarDefined(name));
}
private void LoadSections(IConfigDataProvider provider, VarsContainer parentVars)
{
if (_providers.Contains(provider))
{
throw new ApplicationException("Circular reference was found for '" + provider + "'");
}
XDocument xDoc;
using (var reader = provider.ReadData())
xDoc = XDocument.Load(reader);
var includes = new List <string>();
var varsDic = new Dictionary <string, string>();
var sections = new List <XElement>();
if (xDoc.Root != null)
{
foreach (var elem in xDoc.Root.Elements())
{
if (elem.Name.NamespaceName == ConfigXmlConstants.XmlNamespace)
{
switch (elem.Name.LocalName)
{
case ConfigXmlConstants.IncludeTagName:
{
var trimmed = elem.Value;
if (trimmed == "")
{
throw new ConfigurationException(ConfigurationResources.IncludeEmptyMessage);
}
includes.Add(trimmed);
continue;
}
case ConfigXmlConstants.VariableTagName:
{
var name = elem.Attribute(ConfigXmlConstants.VariableNameAttribute);
if (name == null || name.Value == "")
{
throw new ConfigurationException(ConfigurationResources.VarNameEmptyMessage);
}
if (varsDic.ContainsKey(name.Value) || parentVars.IsVarDefined(name.Value))
{
throw new ConfigurationException(
string.Format(ConfigurationResources.VarAlreadyDefined, name));
}
varsDic.Add(name.Value, SubstVars(varsDic, elem.Value.Trim()));
continue;
}
}
}
sections.Add(elem);
}
}
var vars = new VarsContainer(varsDic, parentVars);
foreach (var elem in sections)
{
SubstVars(vars, elem);
var secName = SectionName.Create(elem);
if (_loadedSections.ContainsKey(secName))
{
_loadedSections[secName].Add(elem);
}
else
{
_loadedSections.Add(secName, new List <XElement>(new[] { elem }));
}
}
foreach (var include in includes)
{
LoadSections(provider.ResolveInclude(include), vars);
}
_providers.Add(provider);
provider.ConfigChanged += ProviderConfigChanged;
}