/// <summary>
/// Create a child settings composer with the given parent
/// </summary>
/// <param name="parent"></param>
public SettingsComposer(SettingsComposer parent)
{
if (parent == null)
{
XmlConverter = new SettingsXmlConverter();
return;
}
XmlConverter = parent.XmlConverter;
Parent = parent;
}
/// <summary>
/// Update the settings using the given source. If the ignoreChain flag is true
/// (the default), this composer is updated without regard to the contents of its
/// parents. If the ignoreChain is false, only items not present in the chain
/// (meaning both key and value per item) are modified in this composer.
/// </summary>
/// <param name="source"></param>
/// <param name="ignoreChain"></param>
/// <returns></returns>
public SettingsComposer UpdateFrom(SettingsComposer source, bool ignoreChain = true)
{
var newSource =
ignoreChain
? source
: source.Where(item => ChainContains(item.Key, item.Value) == false);
foreach (var item in newSource)
{
this[item.Key] = item.Value;
}
return(this);
}
/// <summary>
/// Reads all settings of this composer and its parents into a single composer
/// If a key is present in a parent and child, the item of the child is returned and
/// the parent's item is discarded
/// </summary>
/// <returns></returns>
public SettingsComposer ReadAllSettings()
{
var result = new SettingsComposer();
for (var composer = this; composer != null; composer = composer.Parent)
{
foreach (var item in composer.Where(item => result._settingsDictionary.ContainsKey(item.Key) == false))
{
result._settingsDictionary.Add(item.Key, item.Value);
}
}
return(result);
}
