public CheckpointSuggestedWorkItem(
CoreProjection projection, ProjectionMessage.Projections.CheckpointSuggested message,
CoreProjectionCheckpointManager checkpointManager)
: base(projection, "") // checkpoints are serialized based on string.empty token stream name
{
_message = message;
_checkpointManager = checkpointManager;
}
// checkpoints are serialized based on string.empty token stream name
public CheckpointSuggestedWorkItem(
CoreProjection projection, ProjectionMessage.Projections.CheckpointSuggested message,
CoreProjectionCheckpointManager checkpointManager)
: base(projection, "")
{
_message = message;
_checkpointManager = checkpointManager;
}
public CoreProjection(
string name, Guid projectionCorrelationId, IPublisher publisher,
IProjectionStateHandler projectionStateHandler, ProjectionConfig projectionConfig,
RequestResponseDispatcher
<ClientMessage.ReadStreamEventsBackward, ClientMessage.ReadStreamEventsBackwardCompleted> readDispatcher,
RequestResponseDispatcher <ClientMessage.WriteEvents, ClientMessage.WriteEventsCompleted> writeDispatcher,
ILogger logger = null)
{
if (name == null)
{
throw new ArgumentNullException("name");
}
if (name == "")
{
throw new ArgumentException("name");
}
if (publisher == null)
{
throw new ArgumentNullException("publisher");
}
if (projectionStateHandler == null)
{
throw new ArgumentNullException("projectionStateHandler");
}
_projectionCorrelationId = projectionCorrelationId;
_name = name;
_projectionConfig = projectionConfig;
_logger = logger;
_publisher = publisher;
_projectionStateHandler = projectionStateHandler;
_readDispatcher = readDispatcher;
_writeDispatcher = writeDispatcher;
var builder = new CheckpointStrategy.Builder();
_projectionStateHandler.ConfigureSourceProcessingStrategy(builder);
_checkpointStrategy = builder.Build(_projectionConfig.Mode);
_eventFilter = _checkpointStrategy.EventFilter;
_partitionStateCache = new PartitionStateCache();
_processingQueue = new CoreProjectionQueue(
projectionCorrelationId, publisher, projectionConfig.PendingEventsThreshold, UpdateStatistics);
_checkpointManager = this._checkpointStrategy.CreateCheckpointManager(
this, projectionCorrelationId, this._publisher, this._readDispatcher,
this._writeDispatcher, this._projectionConfig, this._name);
GoToState(State.Initial);
}
protected virtual void When()
{
_manager = new MultiStreamCheckpointManager(
_projection, _bus, _projectionCorrelationId, _readDispatcher, _writeDispatcher, _config,
"projection", new MultiStreamPositionTagger(new[] { "a", "b" }), _projectionStateUpdatesStreamId);
}