public StreamStoreConfigRepository(
IStreamStore streamStore,
string streamId = Constants.DefaultStreamName,
IConfigurationSettingsHooks messageHooks = null,
IChangeWatcher changeWatcher = null)
{
_streamStore = streamStore;
_streamId = streamId;
_changeWatcher = changeWatcher;
_messageHooks = messageHooks ?? new NoOpHooks();
_changeWatcher = changeWatcher ?? new SubscriptionBasedChangeWatcher(_streamStore, _streamId, _messageHooks);
}
/// <summary>
/// Adds SQL Stream store backed configuraiton provider
/// </summary>
/// <param name="builder">The configuration builer that SSS will be aded to </param>
/// <param name="streamStoreFactory">Builds the stream store implementation</param>
/// <param name="subscribeToChanges">Should we subscribe to changes?</param>
/// <param name="errorHandler">What to do if database is not available. </param>
/// <param name="messageHooks">Message hooks that help you to implement encryption</param>
/// <returns></returns>
public static IConfigurationBuilder AddStreamStore(this IConfigurationBuilder builder,
BuildStreamStoreFromConfig streamStoreFactory,
bool subscribeToChanges = false,
ErrorHandler errorHandler = null,
IConfigurationSettingsHooks messageHooks = null)
{
builder.Add(new StreamStoreConfigurationSource(streamStoreFactory)
{
SubscribeToChanges = subscribeToChanges,
ErrorHandler = errorHandler,
MessageHooks = messageHooks
});
return(builder);
}
/// <summary>
/// Builds the configuration settings from the stream message.
/// </summary>
/// <param name="message"></param>
/// <param name="messageHooks"></param>
/// <param name="ct"></param>
/// <returns></returns>
public static async Task <IConfigurationSettings> BuildConfigurationSettingsFromMessage(
StreamMessage message, IConfigurationSettingsHooks messageHooks, CancellationToken ct)
{
var data = messageHooks.OnReadMessage(await message.GetJsonData(ct));
var configChanged = JsonConvert.DeserializeObject <ConfigChanged>(data, messageHooks.JsonSerializerSettings);
return(new ConfigurationSettings(
message.StreamVersion,
message.CreatedUtc,
configChanged.AllSettings,
configChanged.ModifiedSettings,
configChanged.DeletedSettings));
}
public SubscriptionBasedChangeWatcher(IStreamStore streamStore, StreamId streamId, IConfigurationSettingsHooks messageHooks)
{
_streamStore = streamStore;
_streamId = streamId;
_messageHooks = messageHooks;
}