/// <summary>
/// Loads the xml configuration from a file
/// </summary>
/// <param name="configFile">The config file</param>
/// <returns>The parsed config</returns>
public static XMLConfigFile ParseXMLFile(FileInfo configFile)
{
if (configFile == null)
throw new ArgumentNullException("configFile");
var root = new XMLConfigFile();
if (!configFile.Exists)
return root;
ConfigElement current = root;
using (var reader = new XmlTextReader(configFile.OpenRead()))
{
while (reader.Read())
{
if (reader.NodeType == XmlNodeType.Element)
{
if (reader.Name == "root")
continue;
if (reader.Name == "param")
{
string name = reader.GetAttribute("name");
if (name != null && name != "root")
{
var newElement = new ConfigElement(current);
current[name] = newElement;
current = newElement;
}
}
else
{
var newElement = new ConfigElement(current);
current[reader.Name] = newElement;
current = newElement;
}
}
else if (reader.NodeType == XmlNodeType.Text)
{
current.Set(reader.Value);
}
else if (reader.NodeType == XmlNodeType.EndElement)
{
if (reader.Name != "root")
{
current = current.Parent;
}
}
}
}
return root;
}
/// <summary>
/// Constructs a new config element with the given parent.
/// </summary>
/// <param name="parent">the parent element of the newly created element</param>
public ConfigElement(ConfigElement parent)
{
_parent = parent;
}
/// <summary>
/// Saves a single configuration element to an XML stream.
/// </summary>
/// <param name="writer">the xml writer to save to</param>
/// <param name="name">the name for this element</param>
/// <param name="element">the element to save</param>
private static void SaveElement(XmlWriter writer, string name, ConfigElement element)
{
bool badName = IsBadXMLElementName(name);
if (element.HasChildren)
{
if (name == null)
name = "root";
if (badName)
{
writer.WriteStartElement("param");
writer.WriteAttributeString("name", name);
}
else
{
writer.WriteStartElement(name);
}
foreach (var entry in element.Children)
{
SaveElement(writer, entry.Key, entry.Value);
}
writer.WriteEndElement();
}
else
{
if (name != null)
{
if (badName)
{
writer.WriteStartElement("param");
writer.WriteAttributeString("name", name);
writer.WriteString(element.GetString());
writer.WriteEndElement();
}
else
{
writer.WriteElementString(name, element.GetString());
}
}
}
}
/// <summary>
/// Creates and returns a new configuration element.
/// </summary>
/// <param name="parent">the parent element of the newly created element</param>
/// <returns>the newly created config element</returns>
private static ConfigElement GetNewConfigElement(ConfigElement parent)
{
return new ConfigElement(parent);
}