public override ConfigurationSection ProcessConfigurationSection(ConfigurationSection configSection)
{
// Expand mode only works on the raw string input
if (Mode == KeyValueMode.Expand)
{
return(configSection);
}
// See if we know how to process this section
ISectionHandler handler = SectionHandlersSection.GetSectionHandler(configSection);
if (handler == null)
{
return(configSection);
}
if (configSection.SectionInformation?.SectionName == "appSettings")
{
_appSettings = configSection as AppSettingsSection;
}
// Strict Mode. Only replace existing key/values.
if (Mode == KeyValueMode.Strict)
{
foreach (var configItem in handler)
{
// Presumably, UpdateKey will preserve casing appropriately, so newKey is cased as expected.
string newKey = UpdateKey(configItem.Key);
string newValue = GetValueInternal(configItem.Key);
if (newValue != null)
{
handler.InsertOrUpdate(newKey, newValue, configItem.Key, configItem.Value);
}
}
}
// Greedy Mode. Insert all key/values.
else if (Mode == KeyValueMode.Greedy)
{
EnsureGreedyInitialized();
foreach (KeyValuePair <string, string> kvp in _cachedValues)
{
if (kvp.Value != null)
{
// Here, kvp.Key is not from the config file, so it might not be correctly cased. Get the correct casing for UpdateKey.
string oldKey = TrimPrefix(kvp.Key);
string newKey = UpdateKey(handler.TryGetOriginalCase(oldKey));
handler.InsertOrUpdate(newKey, kvp.Value, oldKey);
}
}
}
return(configSection);
}
public override ConfigurationSection ProcessConfigurationSection(ConfigurationSection configSection)
{
// Expand mode only works on the raw string input
if (Mode == KeyValueMode.Expand)
{
return(configSection);
}
// See if we know how to process this section
ISectionHandler handler = SectionHandlersSection.GetSectionHandler(configSection);
if (handler == null)
{
return(configSection);
}
_appSettings = configSection as AppSettingsSection;
// Strict Mode. Only replace existing key/values.
if (Mode == KeyValueMode.Strict)
{
foreach (var configItem in handler)
{
string newValue = GetValueInternal(configItem.Key);
string newKey = UpdateKey(configItem.Key);
if (newValue != null)
{
handler.InsertOrUpdate(newKey, newValue, configItem.Key, configItem.Value);
}
}
}
// Greedy Mode. Insert all key/values.
else if (Mode == KeyValueMode.Greedy)
{
EnsureGreedyInitialized();
foreach (KeyValuePair <string, string> kvp in _cachedValues)
{
if (kvp.Value != null)
{
string oldKey = TrimPrefix(kvp.Key);
string newKey = UpdateKey(oldKey);
handler.InsertOrUpdate(newKey, kvp.Value, oldKey);
}
}
}
return(configSection);
}
static internal ISectionHandler GetSectionHandler <T>(T configSection) where T : ConfigurationSection
{
if (configSection == null)
{
return(null);
}
SectionHandlersSection handlerSection = ConfigurationManager.GetSection(handlerSectionName) as SectionHandlersSection;
if (handlerSection == null)
{
handlerSection = new SectionHandlersSection();
handlerSection.InitializeDefault();
}
// Look at each handler to see if it works on this section. Reverse order so last match wins.
// .IsSubclassOf() requires an exact type match. So SectionHandler<BaseConfigSectionType> won't work.
Type sectionHandlerGenericTemplate = typeof(SectionHandler <>);
Type sectionHandlerDesiredType = sectionHandlerGenericTemplate.MakeGenericType(configSection.GetType());
for (int i = handlerSection.Handlers.Count; i-- > 0;)
{
Type handlerType = Type.GetType(handlerSection.Handlers[i].Type);
if (handlerType != null && handlerType.IsSubclassOf(sectionHandlerDesiredType))
{
ISectionHandler handler = Activator.CreateInstance(handlerType) as ISectionHandler;
if (handler != null)
{
ProviderSettings settings = handlerSection.Handlers[i];
NameValueCollection clonedParams = new NameValueCollection(settings.Parameters.Count);
foreach (string key in settings.Parameters)
{
clonedParams[key] = settings.Parameters[key];
}
MethodInfo init = sectionHandlerDesiredType.GetMethod("Initialize", BindingFlags.NonPublic | BindingFlags.Instance);
init.Invoke(handler, new object[] { settings.Name, configSection, clonedParams });
return(handler);
}
}
}
throw new Exception($"Error in Configuration: Cannot find ISectionHandler for '{configSection.SectionInformation.Name}' section.");
}
static internal ISectionHandler GetSectionHandler <T>(T configSection) where T : ConfigurationSection
{
if (configSection == null)
{
return(null);
}
SectionHandlersSection handlerSection = ConfigurationManager.GetSection(handlerSectionName) as SectionHandlersSection;
if (handlerSection == null)
{
handlerSection = new SectionHandlersSection();
handlerSection.InitializeDefault();
}
// Look at each handler to see if it works on this section. Reverse order so last match wins.
// .IsSubclassOf() requires an exact type match. So SectionHandler<BaseConfigSectionType> won't work.
Type sectionHandlerGenericTemplate = typeof(SectionHandler <>);
Type sectionHandlerDesiredType = sectionHandlerGenericTemplate.MakeGenericType(configSection.GetType());
for (int i = handlerSection.Handlers.Count; i-- > 0;)
{
Type handlerType = Type.GetType(handlerSection.Handlers[i].Type);
if (handlerType != null && handlerType.IsSubclassOf(sectionHandlerDesiredType))
{
ISectionHandler handler = Activator.CreateInstance(handlerType) as ISectionHandler;
if (handler != null)
{
sectionHandlerDesiredType.GetProperty("ConfigSection").SetValue(handler, configSection);
}
return(handler);
}
}
return(null);
}