async Task <Partitioned.ScopedStreamProcessor> CreatePartitionedScopedStreamProcessor(
IStreamProcessorId streamProcessorId,
IEventProcessor eventProcessor,
ICanFetchEventsFromPartitionedStream eventsFromStreamsFetcher,
CancellationToken cancellationToken)
{
var tryGetStreamProcessorState = await _streamProcessorStates.TryGetFor(streamProcessorId, cancellationToken).ConfigureAwait(false);
if (!tryGetStreamProcessorState.Success)
{
tryGetStreamProcessorState = Partitioned.StreamProcessorState.New;
await _streamProcessorStates.Persist(streamProcessorId, tryGetStreamProcessorState.Result, cancellationToken).ConfigureAwait(false);
}
if (!tryGetStreamProcessorState.Result.Partitioned)
{
throw new ExpectedPartitionedStreamProcessorState(streamProcessorId);
}
return(new Partitioned.ScopedStreamProcessor(
_tenant,
streamProcessorId,
tryGetStreamProcessorState.Result as Partitioned.StreamProcessorState,
eventProcessor,
_streamProcessorStates,
eventsFromStreamsFetcher,
new Partitioned.FailingPartitions(_streamProcessorStates, eventProcessor, eventsFromStreamsFetcher, _eventsFetcherPolicy, _loggerManager.CreateLogger <Partitioned.FailingPartitions>()),
_eventsFetcherPolicy,
_loggerManager.CreateLogger <Partitioned.ScopedStreamProcessor>()));
}
/// <summary>
/// Initializes a new instance of the <see cref="FailingPartitions"/> class.
/// </summary>
/// <param name="streamProcessorStates">The <see cref="IResilientStreamProcessorStateRepository" />.</param>
/// <param name="eventProcessor">The <see cref="IEventProcessor" />.</param>
/// <param name="eventsFromStreamsFetcher">The <see cref="ICanFetchEventsFromPartitionedStream" />.</param>
/// <param name="eventsFetcherPolicy">The <see cref="IAsyncPolicyFor{T}" /> <see cref="ICanFetchEventsFromStream" />.</param>
/// <param name="logger">The <see cref="ILogger" />.</param>
public FailingPartitions(
IResilientStreamProcessorStateRepository streamProcessorStates,
IEventProcessor eventProcessor,
ICanFetchEventsFromPartitionedStream eventsFromStreamsFetcher,
IAsyncPolicyFor <ICanFetchEventsFromStream> eventsFetcherPolicy,
ILogger <FailingPartitions> logger)
{
_streamProcessorStates = streamProcessorStates;
_eventProcessor = eventProcessor;
_eventsFromStreamsFetcher = eventsFromStreamsFetcher;
_eventsFetcherPolicy = eventsFetcherPolicy;
_logger = logger;
}
/// <summary>
/// Initializes a new instance of the <see cref="FailingPartitions"/> class.
/// </summary>
/// <param name="streamProcessorStates">The <see cref="IResilientStreamProcessorStateRepository" />.</param>
/// <param name="eventProcessor">The <see cref="IEventProcessor" />.</param>
/// <param name="eventsFromStreamsFetcher">The <see cref="ICanFetchEventsFromPartitionedStream" />.</param>
/// <param name="createExecutionContextForEvent">The factory to use to create execution contexts for event processing.</param>
/// <param name="eventFetcherPolicies">The policies to use for fetching events.</param>
public FailingPartitions(
IResilientStreamProcessorStateRepository streamProcessorStates,
IEventProcessor eventProcessor,
ICanFetchEventsFromPartitionedStream eventsFromStreamsFetcher,
Func <StreamEvent, ExecutionContext> createExecutionContextForEvent, //TODO: Oh man, here we go again.
IEventFetcherPolicies eventFetcherPolicies)
{
_streamProcessorStates = streamProcessorStates;
_eventProcessor = eventProcessor;
_eventsFromStreamsFetcher = eventsFromStreamsFetcher;
_createExecutionContextForEvent = createExecutionContextForEvent;
_eventFetcherPolicies = eventFetcherPolicies;
}
/// <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="failingPartitions">The <see cref="IFailingPartitions" />.</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,
ICanFetchEventsFromPartitionedStream eventsFromStreamsFetcher,
IFailingPartitions failingPartitions,
IAsyncPolicyFor <ICanFetchEventsFromStream> eventsFetcherPolicy,
ILogger <ScopedStreamProcessor> logger)
: base(tenantId, streamProcessorId, initialState, processor, eventsFromStreamsFetcher, eventsFetcherPolicy, logger)
{
_streamProcessorStates = streamProcessorStates;
_failingPartitions = failingPartitions;
}
/// <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="StreamDefinition" />.</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="failingPartitionsFactory">The factory to use to create the <see cref="IFailingPartitions" />.</param>
/// <param name="eventFetcherPolicies">The policies to use while fetching events.</param>
/// <param name="streamWatcher">The <see cref="IStreamEventWatcher" />.</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,
ICanFetchEventsFromPartitionedStream eventsFromStreamsFetcher,
ExecutionContext executionContext,
Func <IEventProcessor, ICanFetchEventsFromPartitionedStream, Func <StreamEvent, ExecutionContext>, IFailingPartitions> failingPartitionsFactory,
IEventFetcherPolicies eventFetcherPolicies,
IStreamEventWatcher streamWatcher,
ICanGetTimeToRetryFor <StreamProcessorState> timeToRetryGetter,
ILogger logger)
: base(tenantId, streamProcessorId, sourceStreamDefinition, initialState, processor, eventsFromStreamsFetcher, executionContext, eventFetcherPolicies, streamWatcher, logger)
{
_streamProcessorStates = streamProcessorStates;
_failingPartitions = failingPartitionsFactory(processor, eventsFromStreamsFetcher, GetExecutionContextForEvent);
_timeToRetryGetter = timeToRetryGetter;
}
