/// <summary>
/// Registers an <see cref="IConfigObserver"/> object, which is notified when a configuration changes.
/// </summary>
/// <param name="observer">The <see cref="IConfigObserver"/> that will be notified when a configuration
/// update occurs. These are Memcached and Couchbase Buckets.</param>
/// <returns>True if the observer was registered without failure.</returns>
public override bool RegisterObserver(IConfigObserver observer)
{
var hasRegistered = false;
var bucketConfig = _serverConfig.Buckets.Find(x => x.Name == observer.Name);
if (bucketConfig == null)
{
throw new BucketNotFoundException(observer.Name);
}
var cancellationTokenSource = new CancellationTokenSource();
_cancellationTokens[observer.Name] = cancellationTokenSource;
var configThreadState = new ConfigThreadState(bucketConfig, ConfigChangedHandler, ErrorOccurredHandler, cancellationTokenSource.Token);
var thread = new Thread(configThreadState.ListenForConfigChanges);
if (_threads.TryAdd(observer.Name, thread) && ConfigObservers.TryAdd(observer.Name, observer))
{
_threads[observer.Name].Start();
if (CountdownEvent.CurrentCount == 0)
{
CountdownEvent.Reset(1);
}
//TODO add timeout?
CountdownEvent.Wait(cancellationTokenSource.Token);
hasRegistered = true;
}
return(hasRegistered);
}
/// <summary>
/// Registers an <see cref="IConfigObserver"/> object, which is notified when a configuration changes.
/// </summary>
/// <param name="observer">The <see cref="IConfigObserver"/> that will be notified when a configuration
/// update occurs. These are Memcached and Couchbase Buckets.</param>
/// <returns>True if the observer was registered without failure.</returns>
public override bool RegisterObserver(IConfigObserver observer)
{
RegisterEvent.WaitOne(10000);//TODO make configurable
var hasRegistered = false;
try
{
var bucketConfig = _serverConfig.Buckets.Find(x => x.Name == observer.Name);
if (bucketConfig == null)
{
throw new BucketNotFoundException(observer.Name);
}
var cancellationTokenSource = new CancellationTokenSource();
_cancellationTokens[observer.Name] = cancellationTokenSource;
var configThreadState = new ConfigThreadState(bucketConfig, ConfigChangedHandler, ErrorOccurredHandler,
cancellationTokenSource.Token, Log);
var thread = new Thread(configThreadState.ListenForConfigChanges)
{
IsBackground = true
};
if (_threads.TryAdd(observer.Name, thread) && ConfigObservers.TryAdd(observer.Name, observer))
{
_threads[observer.Name].Start();
if (CountdownEvent.CurrentCount == 0)
{
CountdownEvent.Reset(1);
}
//TODO add timeout?
CountdownEvent.Wait(10000, cancellationTokenSource.Token);//TODO make configurable
hasRegistered = true;
}
}
finally
{
RegisterEvent.Set();
}
return hasRegistered;
}
