/// <summary>
/// Gets the <see cref="IStreamProcessorState" /> for the given <see cref="IStreamProcessorId" /> from the correct
/// collection, either <see cref="SubscriptionState" /> or <see cref="StreamProcessorState" />.
/// </summary>
/// <param name="id">The unique <see cref="IStreamProcessorId" /> representing either the <see cref="AbstractScopedStreamProcessor"/>
/// or <see cref="SubscriptionId" />.</param>
/// <param name="cancellationToken">The <see cref="CancellationToken" />.</param>
/// <returns>A <see cref="Task" /> that, when resolved, returns <see cref="Try{TResult}" />.</returns>
public async Task <Try <IStreamProcessorState> > TryGetFor(IStreamProcessorId id, CancellationToken cancellationToken)
{
_logger.Trace("Trying to get Stream Processor State for {StreamProcessorId}", id);
try
{
if (id is SubscriptionId subscriptionId)
{
var states = await _subscriptionStates.Get(subscriptionId.ScopeId, cancellationToken).ConfigureAwait(false);
var persistedState = await states.Find(CreateFilter(subscriptionId))
.FirstOrDefaultAsync(cancellationToken)
.ConfigureAwait(false);
return((persistedState != null) ? (true, persistedState.ToRuntimeRepresentation()) : (false, null));
}
else if (id is StreamProcessorId streamProcessorId)
{
var states = await _streamProcessorStates.Get(streamProcessorId.ScopeId, cancellationToken).ConfigureAwait(false);
var persistedState = await states.Find(CreateFilter(streamProcessorId))
.FirstOrDefaultAsync(cancellationToken)
.ConfigureAwait(false);
return((persistedState != null) ? (true, persistedState.ToRuntimeRepresentation()) : (false, null));
}
else
{
throw new StreamProcessorIdOfUnsupportedType(id);
}
}
catch (MongoWaitQueueFullException ex)
{
throw new EventStoreUnavailable("Mongo wait queue is full", ex);
}
}
/// <summary>
/// Gets the <see cref="IStreamProcessorState" /> for the given <see cref="IStreamProcessorId" /> from the correct
/// collection, either <see cref="SubscriptionState" /> or <see cref="StreamProcessorState" />.
/// </summary>
/// <param name="id">The unique <see cref="IStreamProcessorId" /> representing either the <see cref="AbstractScopedStreamProcessor"/>
/// or <see cref="SubscriptionId" />.</param>
/// <param name="cancellationToken">The <see cref="CancellationToken" />.</param>
/// <returns>A <see cref="Task" /> that, when resolved, returns <see cref="Try{TResult}" />.</returns>
public async Task <Try <IStreamProcessorState> > TryGetFor(IStreamProcessorId id, CancellationToken cancellationToken)
{
_logger.GettingStreamProcessorState(id);
try
{
if (id is SubscriptionId subscriptionId)
{
var states = await _subscriptionStates.Get(subscriptionId.ScopeId, cancellationToken).ConfigureAwait(false);
var persistedState = await states.Find(CreateFilter(subscriptionId))
.FirstOrDefaultAsync(cancellationToken)
.ConfigureAwait(false);
return(persistedState == default
? new StreamProcessorStateDoesNotExist(subscriptionId)
: persistedState.ToRuntimeRepresentation());
}
else if (id is StreamProcessorId streamProcessorId)
{
var states = await _streamProcessorStates.Get(streamProcessorId.ScopeId, cancellationToken).ConfigureAwait(false);
var persistedState = await states.Find(CreateFilter(streamProcessorId))
.FirstOrDefaultAsync(cancellationToken)
.ConfigureAwait(false);
return(persistedState == default
? new StreamProcessorStateDoesNotExist(streamProcessorId)
: Try <IStreamProcessorState> .Succeeded(persistedState.ToRuntimeRepresentation()));
}
else
{
throw new StreamProcessorIdOfUnsupportedType(id);
}
}
catch (MongoWaitQueueFullException ex)
{
throw new EventStoreUnavailable("Mongo wait queue is full", ex);
}
}
