async Task <ScopedStreamProcessor> CreateUnpartitionedScopedStreamProcessor(
IStreamProcessorId streamProcessorId,
IEventProcessor eventProcessor,
ICanFetchEventsFromStream eventsFromStreamsFetcher,
CancellationToken cancellationToken)
{
var tryGetStreamProcessorState = await _streamProcessorStates.TryGetFor(streamProcessorId, cancellationToken).ConfigureAwait(false);
if (!tryGetStreamProcessorState.Success)
{
tryGetStreamProcessorState = StreamProcessorState.New;
await _streamProcessorStates.Persist(streamProcessorId, tryGetStreamProcessorState.Result, cancellationToken).ConfigureAwait(false);
}
if (tryGetStreamProcessorState.Result.Partitioned)
{
throw new ExpectedUnpartitionedStreamProcessorState(streamProcessorId);
}
return(new ScopedStreamProcessor(
_tenant,
streamProcessorId,
tryGetStreamProcessorState.Result as StreamProcessorState,
eventProcessor,
_streamProcessorStates,
eventsFromStreamsFetcher,
_eventsFetcherPolicy,
_loggerManager.CreateLogger <ScopedStreamProcessor>()));
}
/// <summary>
/// Initializes a new instance of the <see cref="ScopedStreamProcessor"/> class.
/// </summary>
/// <param name="tenantId">The <see cref="TenantId"/>.</param>
/// <param name="streamProcessorId">The <see cref="IStreamProcessorId" />.</param>
/// <param name="initialState">The <see cref="StreamProcessorState" />.</param>
/// <param name="processor">An <see cref="IEventProcessor" /> to process the event.</param>
/// <param name="streamProcessorStates">The <see cref="IResilientStreamProcessorStateRepository" />.</param>
/// <param name="eventsFromStreamsFetcher">The<see cref="ICanFetchEventsFromStream" />.</param>
/// <param name="eventsFetcherPolicy">The <see cref="IAsyncPolicyFor{T}" /> <see cref="ICanFetchEventsFromStream" />.</param>
/// <param name="logger">An <see cref="ILogger" /> to log messages.</param>
public ScopedStreamProcessor(
TenantId tenantId,
IStreamProcessorId streamProcessorId,
StreamProcessorState initialState,
IEventProcessor processor,
IResilientStreamProcessorStateRepository streamProcessorStates,
ICanFetchEventsFromStream eventsFromStreamsFetcher,
IAsyncPolicyFor <ICanFetchEventsFromStream> eventsFetcherPolicy,
ILogger <ScopedStreamProcessor> logger)
: base(tenantId, streamProcessorId, initialState, processor, eventsFromStreamsFetcher, eventsFetcherPolicy, logger)
{
_streamProcessorStates = streamProcessorStates;
}
/// <summary>
/// Initializes a new instance of the <see cref="AbstractScopedStreamProcessor"/> class.
/// </summary>
/// <param name="tenantId">The <see cref="TenantId"/>.</param>
/// <param name="streamProcessorId">The <see cref="IStreamProcessorId" />.</param>
/// <param name="initialState">The initial state of the <see cref="IStreamProcessorState" />.</param>
/// <param name="processor">An <see cref="IEventProcessor" /> to process the event.</param>
/// <param name="eventsFetcher">The <see cref="ICanFetchEventsFromStream" />.</param>
/// <param name="fetchEventsToProcessPolicy">The <see cref="IAsyncPolicyFor{T}" /> <see cref="ICanFetchEventsFromStream" />.</param>
/// <param name="logger">An <see cref="ILogger" /> to log messages.</param>
protected AbstractScopedStreamProcessor(
TenantId tenantId,
IStreamProcessorId streamProcessorId,
IStreamProcessorState initialState,
IEventProcessor processor,
ICanFetchEventsFromStream eventsFetcher,
IAsyncPolicyFor <ICanFetchEventsFromStream> fetchEventsToProcessPolicy,
ILogger logger)
{
Identifier = streamProcessorId;
Logger = logger;
_currentState = initialState;
_tenantId = tenantId;
_processor = processor;
_eventsFetcher = eventsFetcher;
_fetchEventToProcessPolicy = fetchEventsToProcessPolicy;
}
/// <summary>
/// Initializes a new instance of the <see cref="ScopedStreamProcessor"/> class.
/// </summary>
/// <param name="tenantId">The <see cref="TenantId"/>.</param>
/// <param name="streamProcessorId">The <see cref="IStreamProcessorId" />.</param>
/// <param name="sourceStreamDefinition">The source stream <see cref="IStreamDefinition" />.</param>
/// <param name="initialState">The <see cref="StreamProcessorState" />.</param>
/// <param name="processor">An <see cref="IEventProcessor" /> to process the event.</param>
/// <param name="streamProcessorStates">The <see cref="IResilientStreamProcessorStateRepository" />.</param>
/// <param name="eventsFromStreamsFetcher">The<see cref="ICanFetchEventsFromStream" />.</param>
/// <param name="executionContext">The <see cref="ExecutionContext"/> of the stream processor.</param>
/// <param name="eventFetcherPolicies">The policies to use while fetching events.</param>
/// <param name="eventWatcher">The <see cref="IStreamEventWatcher" /> to wait for events to be available in stream.</param>
/// <param name="timeToRetryGetter">The <see cref="ICanGetTimeToRetryFor{T}" /> <see cref="StreamProcessorState" />.</param>
/// <param name="logger">An <see cref="ILogger" /> to log messages.</param>
public ScopedStreamProcessor(
TenantId tenantId,
IStreamProcessorId streamProcessorId,
IStreamDefinition sourceStreamDefinition,
StreamProcessorState initialState,
IEventProcessor processor,
IResilientStreamProcessorStateRepository streamProcessorStates,
ICanFetchEventsFromStream eventsFromStreamsFetcher,
ExecutionContext executionContext,
IEventFetcherPolicies eventFetcherPolicies,
IStreamEventWatcher eventWatcher,
ICanGetTimeToRetryFor <StreamProcessorState> timeToRetryGetter,
ILogger logger)
: base(tenantId, streamProcessorId, sourceStreamDefinition, initialState, processor, eventsFromStreamsFetcher, executionContext, eventFetcherPolicies, eventWatcher, logger)
{
_streamProcessorStates = streamProcessorStates;
_timeToRetryGetter = timeToRetryGetter;
}
