public Dictionary <string, string> GetSettingsValues(SettingsGroupDescriptor group, string user, string instanceKey)
{
var serviceContract = !String.IsNullOrEmpty(user) ?
typeof(IConfigurationService) : typeof(IApplicationConfigurationReadService);
var service = (IApplicationConfigurationReadService)Platform.GetService(serviceContract);
using (service as IDisposable)
{
var documentKey = new ConfigurationDocumentKey(group.Name, group.Version, user, instanceKey);
var document = GetConfigurationDocument(service, documentKey);
var values = new Dictionary <string, string>();
var parser = new SettingsParser();
parser.FromXml(document, values);
return(values);
}
}
public void PutSettingsValues(SettingsGroupDescriptor group, string user, string instanceKey, Dictionary <string, string> dirtyValues)
{
// note: if user == null, we are saving shared settings, if user is valued, we are saving user settings
// but both are never edited as a single operation
// the approach taken here is to create an XML document that represents a diff between
// the default settings (as specified by the settings group meta-data) and the modified settings,
// and store that document in the configuration store
var service = Platform.GetService <IConfigurationService>();
using (service as IDisposable)
using (var offlineCacheClient = _offlineCache.CreateClient())
{
// first obtain the meta-data for the settings group properties
var properties = ListSettingsProperties(group, service);
// next we obtain any previously stored configuration document for this settings group
var documentKey = new ConfigurationDocumentKey(group.Name, group.Version, user, instanceKey);
var document = GetConfigurationDocument(service, documentKey);
// parse document
var parser = new SettingsParser();
var values = new Dictionary <string, string>();
parser.FromXml(document, values);
// update the values that have changed
foreach (var kvp in dirtyValues)
{
values[kvp.Key] = kvp.Value;
}
// now remove any values that are identical to the default values
foreach (var property in properties)
{
string value;
if (values.TryGetValue(property.Name, out value) && Equals(value, property.DefaultValue))
{
values.Remove(property.Name);
}
}
try
{
if (values.Count > 0)
{
// generate the document, update local cache and server
document = parser.ToXml(values);
offlineCacheClient.Put(documentKey, document);
service.SetConfigurationDocument(new SetConfigurationDocumentRequest(documentKey, document));
}
else
{
// every value is the same as the default, so the document can be removed
// update local cache and server
offlineCacheClient.Remove(documentKey);
service.RemoveConfigurationDocument(new RemoveConfigurationDocumentRequest(documentKey));
}
}
catch (EndpointNotFoundException e)
{
Platform.Log(LogLevel.Debug, e, "Unable to save settings to configuration service.");
}
}
}
