public async Task <long> ProjectionProgressFor(ShardName name,
CancellationToken token = default)
{
await EnsureStorageExistsAsync(typeof(IEvent), token).ConfigureAwait(false);
var statement = new ProjectionProgressStatement(_options.EventGraph)
{
Name = name
};
var handler = new OneResultHandler <ShardState>(statement,
new ShardStateSelector(), true, false);
await using var conn = CreateConnection();
await conn.OpenAsync(token).ConfigureAwait(false);
var builder = new CommandBuilder();
handler.ConfigureCommand(builder, null);
await using var reader = await builder.ExecuteReaderAsync(conn, token).ConfigureAwait(false);
var state = await handler.HandleAsync(reader, null, token).ConfigureAwait(false);
return(state?.Sequence ?? 0);
}
public async Task <long> ProjectionProgressFor(ShardName name, CancellationToken token = default)
{
await _store.Tenancy.Default.EnsureStorageExistsAsync(typeof(IEvent), token);
var statement = new ProjectionProgressStatement(_store.Events)
{
Name = name
};
var handler = new OneResultHandler <ShardState>(statement,
new ShardStateSelector(), true, false);
await using var session = (QuerySession)_store.QuerySession();
var progress = await session.ExecuteHandlerAsync(handler, token);
return(progress?.Sequence ?? 0);
}
/// <summary>
/// Check the current progress of a single projection or projection shard
/// </summary>
/// <param name="token"></param>
/// <returns></returns>
public async Task <long> ProjectionProgressFor(string projectionOrShardName, CancellationToken token = default(CancellationToken))
{
_store.Tenancy.Default.EnsureStorageExists(typeof(IEvent));
var statement = new ProjectionProgressStatement(this)
{
ProjectionOrShardName = projectionOrShardName
};
var handler = new OneResultHandler <ProjectionProgress>(statement,
new ProjectionProgressSelector(), true, false);
await using var session = (QuerySession)_store.QuerySession();
var progress = await session.ExecuteHandlerAsync(handler, token);
return(progress?.LastSequenceId ?? 0);
}
