public async Task InstallProjectionFor <TProjection>() where TProjection : IEventStoreProjection
{
var matchingProjections = _projections.OfType <TProjection>().ToList();
var projectionBuilder = new ProjectionBuilder();
var projectionManager = _eventStoreConnectionString.CreateProjectionsManager();
var credentials = _eventStoreConnectionString.GetUserCredentials();
foreach (var projection in matchingProjections)
{
var name = $"project-to-{projection.ProjectionName}";
var query = projectionBuilder.BuildStreamProjection(projection.GetInterestingStreams(), projection.ProjectionName);
await projectionManager.CreateOrUpdateContinuousQueryAsync(name, query, credentials).ConfigureAwait(false);
}
}
public async Task InstallProjectionFor <TProcessManager>() where TProcessManager : IManageProcess
{
var matchingProcessManagers = _processManagers.OfType <TProcessManager>().ToList();
var projectionBuilder = new ProjectionBuilder();
var projectionManager = _eventStoreConnectionString.CreateProjectionsManager();
var credentials = _eventStoreConnectionString.GetUserCredentials();
foreach (var processManager in matchingProcessManagers)
{
var name = $"project-to-{processManager.ProcessName}";
var query = projectionBuilder.BuildStreamProjection(processManager.GetStreamsToProcess(),
processManager.ProcessName,
processManager.GetEventMappings().Select(x => new ProjectionBuilder.EventMap(x.Key.Name, x.Value)));
await projectionManager.CreateOrUpdateContinuousQueryAsync(name, query, credentials).ConfigureAwait(false);
}
}
public async Task InstallConsumerGroupFor(string stream, Func <PersistentSubscriptionSettingsBuilder, PersistentSubscriptionSettingsBuilder> alterSettings = null)
{
var settings = PersistentSubscriptionSettings.Create().PreferRoundRobin().ResolveLinkTos();
alterSettings = alterSettings ?? (x => x);
settings = alterSettings(settings);
var subscriberSettings = _environment.GetSettings <SubscribersSettings>();
var groupName = subscriberSettings.GetPersistentSubscriptionGroupNameFor(stream, _environment);
try
{
await _eventStoreConnection.CreatePersistentSubscriptionAsync(stream, groupName, settings, _eventStoreConnectionString.GetUserCredentials()).ConfigureAwait(false);
}
catch (Exception ex)
{
_environment.Log(ex, "Failed to create consumer group for stream: {0}", LogLevel.Error, stream);
}
}