private StreamSubscription SubscribeToStream(string streamName,
StreamRevision start,
Func <StreamSubscription, ResolvedEvent, CancellationToken, Task> eventAppeared,
EventStoreClientOperationOptions operationOptions,
bool resolveLinkTos = false,
Action <StreamSubscription, SubscriptionDroppedReason, Exception> subscriptionDropped = default,
UserCredentials userCredentials = default,
CancellationToken cancellationToken = default)
{
operationOptions.TimeoutAfter = DeadLine.None;
var subscription = new StreamSubscription(ReadInternal(new ReadReq {
Options = new ReadReq.Types.Options {
ReadDirection = ReadReq.Types.Options.Types.ReadDirection.Forwards,
ResolveLinks = resolveLinkTos,
Stream = ReadReq.Types.Options.Types.StreamOptions.FromStreamNameAndRevision(streamName,
start),
Subscription = new ReadReq.Types.Options.Types.SubscriptionOptions()
}
},
operationOptions, userCredentials, cancellationToken), eventAppeared,
subscriptionDropped);
return(subscription);
}
private Task <StreamSubscription> SubscribeToStreamAsync(string streamName,
StreamRevision start,
Func <StreamSubscription, ResolvedEvent, CancellationToken, Task> eventAppeared,
EventStoreClientOperationOptions operationOptions,
bool resolveLinkTos = false,
Action <StreamSubscription, SubscriptionDroppedReason, Exception> subscriptionDropped = default,
UserCredentials userCredentials = default,
CancellationToken cancellationToken = default)
{
operationOptions.TimeoutAfter = DeadLine.None;
return(StreamSubscription.Confirm(ReadInternal(new ReadReq {
Options = new ReadReq.Types.Options {
ReadDirection = ReadReq.Types.Options.Types.ReadDirection.Forwards,
ResolveLinks = resolveLinkTos,
Stream = start == StreamRevision.End
? new ReadReq.Types.Options.Types.StreamOptions {
End = new Empty(),
StreamName = streamName
}
: new ReadReq.Types.Options.Types.StreamOptions {
Revision = start,
StreamName = streamName
},
Subscription = new ReadReq.Types.Options.Types.SubscriptionOptions()
}
},
operationOptions, userCredentials, cancellationToken), eventAppeared, subscriptionDropped, _log,
cancellationToken: cancellationToken));
}
private Task <IWriteResult> SetStreamMetadataAsync(string streamName, StreamState expectedState,
StreamMetadata metadata, EventStoreClientOperationOptions operationOptions,
UserCredentials?userCredentials = null, CancellationToken cancellationToken = default)
=> SetStreamMetadataInternal(metadata, new AppendReq {
Options = new AppendReq.Types.Options {
StreamName = SystemStreams.MetastreamOf(streamName)
}
}.WithAnyStreamRevision(expectedState), operationOptions, userCredentials, cancellationToken);
private Task <WriteResult> SetStreamMetadataAsync(string streamName, StreamRevision expectedRevision,
StreamMetadata metadata, EventStoreClientOperationOptions operationOptions,
UserCredentials userCredentials = default, CancellationToken cancellationToken = default)
=> SetStreamMetadataInternal(metadata, new AppendReq {
Options = new AppendReq.Types.Options {
StreamName = SystemStreams.MetastreamOf(streamName),
Revision = expectedRevision
}
}, operationOptions, userCredentials, cancellationToken);
private IAsyncEnumerable <ResolvedEvent> ReadAllAsync(
Direction direction,
Position position,
ulong maxCount,
EventStoreClientOperationOptions operationOptions,
bool resolveLinkTos = false,
IEventFilter filter = null,
UserCredentials userCredentials = default,
CancellationToken cancellationToken = default) => ReadInternal(new ReadReq {
private async Task <DeleteResult> TombstoneInternal(TombstoneReq request,
EventStoreClientOperationOptions operationOptions, UserCredentials userCredentials,
CancellationToken cancellationToken)
{
var result = await _client.TombstoneAsync(request, RequestMetadata.Create(userCredentials),
deadline : DeadLine.After(operationOptions.TimeoutAfter), cancellationToken);
return(new DeleteResult(new Position(result.Position.CommitPosition, result.Position.PreparePosition)));
}
private Task <IWriteResult> SetStreamMetadataInternal(StreamMetadata metadata,
AppendReq appendReq,
EventStoreClientOperationOptions operationOptions,
UserCredentials?userCredentials,
CancellationToken cancellationToken) =>
AppendToStreamInternal(appendReq, new[] {
new EventData(Uuid.NewUuid(), SystemEventTypes.StreamMetadata,
JsonSerializer.SerializeToUtf8Bytes(metadata, StreamMetadataJsonSerializerOptions)),
}, operationOptions, userCredentials, cancellationToken);
private async Task <DeleteResult> DeleteInternal(DeleteReq request, EventStoreClientOperationOptions operationOptions,
UserCredentials?userCredentials,
CancellationToken cancellationToken)
{
_log.LogDebug("Deleting stream {streamName}.", request.Options.StreamName);
var result = await _client.DeleteAsync(request, RequestMetadata.Create(userCredentials ?? Settings.DefaultCredentials),
deadline : DeadLine.After(operationOptions.TimeoutAfter), cancellationToken);
return(new DeleteResult(new Position(result.Position.CommitPosition, result.Position.PreparePosition)));
}
private Task <DeleteResult> SoftDeleteAsync(
string streamName,
AnyStreamRevision expectedRevision,
EventStoreClientOperationOptions operationOptions,
UserCredentials userCredentials = default,
CancellationToken cancellationToken = default) =>
DeleteInternal(new DeleteReq {
Options = new DeleteReq.Types.Options {
StreamName = streamName
}
}.WithAnyStreamRevision(expectedRevision), operationOptions, userCredentials, cancellationToken);
private Task <DeleteResult> TombstoneAsync(
string streamName,
StreamState expectedState,
EventStoreClientOperationOptions operationOptions,
UserCredentials?userCredentials = null,
CancellationToken cancellationToken = default) =>
TombstoneInternal(new TombstoneReq {
Options = new TombstoneReq.Types.Options {
StreamIdentifier = streamName
}
}.WithAnyStreamRevision(expectedState), operationOptions, userCredentials, cancellationToken);
private async Task<DeleteResult> DeleteInternal(DeleteReq request,
EventStoreClientOperationOptions operationOptions,
UserCredentials? userCredentials,
CancellationToken cancellationToken) {
_log.LogDebug("Deleting stream {streamName}.", request.Options.StreamIdentifier);
var result = await new Streams.Streams.StreamsClient(
await SelectCallInvoker(cancellationToken).ConfigureAwait(false)).DeleteAsync(request,
EventStoreCallOptions.Create(Settings, operationOptions, userCredentials, cancellationToken));
return new DeleteResult(new Position(result.Position.CommitPosition, result.Position.PreparePosition));
}
private async Task <DeleteResult> TombstoneInternal(TombstoneReq request,
EventStoreClientOperationOptions operationOptions, UserCredentials?userCredentials,
CancellationToken cancellationToken)
{
_log.LogDebug("Tombstoning stream {streamName}.", request.Options.StreamIdentifier);
var result = await _client.TombstoneAsync(request,
EventStoreCallOptions.Create(Settings, operationOptions, userCredentials, cancellationToken));
return(new DeleteResult(new Position(result.Position.CommitPosition, result.Position.PreparePosition)));
}
private async Task <WriteResult> AppendToStreamInternal(
AppendReq header,
IEnumerable <EventData> eventData,
EventStoreClientOperationOptions operationOptions,
UserCredentials userCredentials,
CancellationToken cancellationToken)
{
using var call = _client.Append(RequestMetadata.Create(userCredentials),
deadline: DeadLine.After(operationOptions.TimeoutAfter), cancellationToken: cancellationToken);
try {
await call.RequestStream.WriteAsync(header).ConfigureAwait(false);
foreach (var e in eventData)
{
_log.LogTrace("Appending event to stream - {streamName}@{eventId} {eventType}.",
header.Options.StreamName, e.EventId, e.Type);
await call.RequestStream.WriteAsync(new AppendReq {
ProposedMessage = new AppendReq.Types.ProposedMessage {
Id = e.EventId.ToDto(),
Data = ByteString.CopyFrom(e.Data.Span),
CustomMetadata = ByteString.CopyFrom(e.Metadata.Span),
Metadata =
{
{ Constants.Metadata.Type, e.Type },
{ Constants.Metadata.ContentType, e.ContentType }
}
}
}).ConfigureAwait(false);
}
await call.RequestStream.CompleteAsync().ConfigureAwait(false);
} catch (InvalidOperationException exc) {
_log.LogTrace(exc, "Got InvalidOperationException when appending events to stream - {streamName}. This is perfectly normal if the connection was closed from the server-side.", header.Options.StreamName);
} catch (RpcException exc) {
_log.LogTrace(exc, "Got RpcException when appending events to stream - {streamName}. This is perfectly normal if the connection was closed from the server-side.", header.Options.StreamName);
}
var response = await call.ResponseAsync.ConfigureAwait(false);
var writeResult = new WriteResult(
response.CurrentRevisionOptionCase == AppendResp.CurrentRevisionOptionOneofCase.NoStream
? AnyStreamRevision.NoStream.ToInt64()
: new StreamRevision(response.CurrentRevision).ToInt64(),
response.PositionOptionCase == AppendResp.PositionOptionOneofCase.Position
? new Position(response.Position.CommitPosition, response.Position.PreparePosition)
: default);
_log.LogDebug("Append to stream succeeded - {streamName}@{logPosition}/{nextExpectedVersion}.",
header.Options.StreamName, writeResult.LogPosition, writeResult.NextExpectedVersion);
return(writeResult);
}
private Task <WriteResult> AppendToStreamAsync(
string streamName,
AnyStreamRevision expectedRevision,
IEnumerable <EventData> eventData,
EventStoreClientOperationOptions operationOptions,
UserCredentials userCredentials = default,
CancellationToken cancellationToken = default) =>
AppendToStreamInternal(new AppendReq {
Options = new AppendReq.Types.Options {
StreamName = streamName
}
}.WithAnyStreamRevision(expectedRevision), eventData, operationOptions, userCredentials, cancellationToken);
private Task <DeleteResult> TombstoneAsync(
string streamName,
StreamRevision expectedRevision,
EventStoreClientOperationOptions operationOptions,
UserCredentials?userCredentials = null,
CancellationToken cancellationToken = default) =>
TombstoneInternal(new TombstoneReq {
Options = new TombstoneReq.Types.Options {
StreamName = streamName,
Revision = expectedRevision
}
}, operationOptions, userCredentials, cancellationToken);
public void setting_options_on_clone_should_not_modify_original()
{
EventStoreClientOperationOptions options = new EventStoreClientOperationOptions {
TimeoutAfter = TimeSpan.FromDays(5),
};
var clonedOptions = options.Clone();
clonedOptions.TimeoutAfter = TimeSpan.FromSeconds(1);
Assert.Equal(options.TimeoutAfter, TimeSpan.FromDays(5));
Assert.Equal(clonedOptions.TimeoutAfter, TimeSpan.FromSeconds(1));
}
private Task <IWriteResult> AppendToStreamAsync(
string streamName,
StreamState expectedState,
IEnumerable <EventData> eventData,
EventStoreClientOperationOptions operationOptions,
UserCredentials?userCredentials = null,
CancellationToken cancellationToken = default)
{
_log.LogDebug("Append to stream - {streamName}@{expectedRevision}.", streamName, expectedState);
return(AppendToStreamInternal(new AppendReq {
Options = new AppendReq.Types.Options {
StreamIdentifier = streamName
}
}.WithAnyStreamRevision(expectedState), eventData, operationOptions, userCredentials, cancellationToken));
}
private async IAsyncEnumerable <ResolvedEvent> ReadAllAsync(
Direction direction,
Position position,
long maxCount,
EventStoreClientOperationOptions operationOptions,
bool resolveLinkTos = false,
UserCredentials?userCredentials = null,
[EnumeratorCancellation] CancellationToken cancellationToken = default)
{
await foreach (var(confirmation, _, resolvedEvent) in ReadInternal(new ReadReq {
Options = new ReadReq.Types.Options {
ReadDirection = direction switch {
Direction.Backwards => ReadReq.Types.Options.Types.ReadDirection.Backwards,
Direction.Forwards => ReadReq.Types.Options.Types.ReadDirection.Forwards,
_ => throw new InvalidOperationException()
},
private Task <WriteResult> AppendToStreamAsync(
string streamName,
StreamRevision expectedRevision,
IEnumerable <EventData> eventData,
EventStoreClientOperationOptions operationOptions,
UserCredentials userCredentials = default,
CancellationToken cancellationToken = default)
{
_log.LogDebug("Append to stream - {streamName}@{expectedRevision}.", streamName, expectedRevision);
return(AppendToStreamInternal(new AppendReq {
Options = new AppendReq.Types.Options {
StreamName = streamName,
Revision = expectedRevision
}
}, eventData, operationOptions, userCredentials, cancellationToken));
}
public static CallOptions Create(EventStoreClientSettings settings,
EventStoreClientOperationOptions operationOptions, UserCredentials?userCredentials,
CancellationToken cancellationToken) => new CallOptions(
cancellationToken: cancellationToken,
deadline: DeadlineAfter(operationOptions.TimeoutAfter),
headers: new Metadata(),
credentials: CallCredentials.FromInterceptor(async(context, metadata) => {
var credentials = settings.DefaultCredentials ?? userCredentials;
if (credentials == null)
{
return;
}
var authorizationHeader = await settings.OperationOptions
.GetAuthenticationHeaderValue(credentials, CancellationToken.None)
.ConfigureAwait(false);
metadata.Add(Constants.Headers.Authorization, authorizationHeader);
})
);
private async Task <WriteResult> AppendToStreamInternal(
AppendReq header,
IEnumerable <EventData> eventData,
EventStoreClientOperationOptions operationOptions,
UserCredentials userCredentials,
CancellationToken cancellationToken)
{
using var call = _client.Append(RequestMetadata.Create(userCredentials),
deadline: DeadLine.After(operationOptions.TimeoutAfter), cancellationToken: cancellationToken);
await call.RequestStream.WriteAsync(header).ConfigureAwait(false);
foreach (var e in eventData)
{
await call.RequestStream.WriteAsync(new AppendReq {
ProposedMessage = new AppendReq.Types.ProposedMessage {
Id = e.EventId.ToStreamsDto(),
Data = ByteString.CopyFrom(e.Data),
CustomMetadata = ByteString.CopyFrom(e.Metadata),
Metadata =
{
{ Constants.Metadata.Type, e.Type },
{ Constants.Metadata.IsJson, e.IsJson.ToString().ToLowerInvariant() }
}
}
}).ConfigureAwait(false);
}
await call.RequestStream.CompleteAsync().ConfigureAwait(false);
var response = await call.ResponseAsync.ConfigureAwait(false);
return(new WriteResult(
response.CurrentRevisionOptionCase == AppendResp.CurrentRevisionOptionOneofCase.NoStream
? AnyStreamRevision.NoStream.ToInt64()
: new StreamRevision(response.CurrentRevision).ToInt64(),
response.PositionOptionCase == AppendResp.PositionOptionOneofCase.Position
? new Position(response.Position.CommitPosition, response.Position.PreparePosition)
: default));
}
private async Task <StreamMetadataResult> GetStreamMetadataAsync(string streamName,
EventStoreClientOperationOptions operationOptions, UserCredentials?userCredentials = null,
CancellationToken cancellationToken = default)
{
ResolvedEvent metadata;
_log.LogDebug("Read stream metadata for {streamName}.");
try {
metadata = await ReadStreamAsync(Direction.Backwards, SystemStreams.MetastreamOf(streamName), StreamPosition.End, 1, operationOptions, false, userCredentials, cancellationToken)
.FirstOrDefaultAsync(cancellationToken).ConfigureAwait(false);
} catch (StreamNotFoundException) {
_log.LogWarning("Stream metadata for {streamName} not found.");
return(StreamMetadataResult.None(streamName));
}
return(metadata.Event == null
? StreamMetadataResult.None(streamName)
: StreamMetadataResult.Create(streamName, metadata.OriginalEventNumber,
JsonSerializer.Deserialize <StreamMetadata>(metadata.Event.Data.Span,
StreamMetadataJsonSerializerOptions)));
}
private Task <StreamSubscription> SubscribeToAllAsync(Position start,
Func <StreamSubscription, ResolvedEvent, CancellationToken, Task> eventAppeared,
EventStoreClientOperationOptions operationOptions,
bool resolveLinkTos = false,
Action <StreamSubscription, SubscriptionDroppedReason, Exception> subscriptionDropped = default,
SubscriptionFilterOptions filterOptions = null,
UserCredentials userCredentials = default,
CancellationToken cancellationToken = default)
{
operationOptions.TimeoutAfter = DeadLine.None;
return(StreamSubscription.Confirm(ReadInternal(new ReadReq {
Options = new ReadReq.Types.Options {
ReadDirection = ReadReq.Types.Options.Types.ReadDirection.Forwards,
ResolveLinks = resolveLinkTos,
All = ReadReq.Types.Options.Types.AllOptions.FromPosition(start),
Subscription = new ReadReq.Types.Options.Types.SubscriptionOptions(),
Filter = GetFilterOptions(filterOptions)
}
}, operationOptions, userCredentials, cancellationToken), eventAppeared, subscriptionDropped, _log,
filterOptions?.CheckpointReached, cancellationToken));
}
private async Task <StreamMetadataResult> GetStreamMetadataAsync(string streamName,
EventStoreClientOperationOptions operationOptions, UserCredentials userCredentials = default,
CancellationToken cancellationToken = default)
{
ResolvedEvent metadata = default;
try {
metadata = await ReadStreamAsync(Direction.Backwards, SystemStreams.MetastreamOf(streamName), StreamRevision.End, 1,
operationOptions,
resolveLinkTos : false,
userCredentials : userCredentials,
cancellationToken : cancellationToken).FirstOrDefaultAsync(cancellationToken).ConfigureAwait(false);
} catch (StreamNotFoundException) {
return(StreamMetadataResult.None(streamName));
}
return(metadata.Event == null
? StreamMetadataResult.None(streamName)
: StreamMetadataResult.Create(
streamName,
metadata.OriginalEventNumber,
JsonSerializer.Deserialize <StreamMetadata>(metadata.Event.Data, StreamMetadataJsonSerializerOptions)));
}
private StreamSubscription SubscribeToAll(
Func <StreamSubscription, ResolvedEvent, CancellationToken, Task> eventAppeared,
EventStoreClientOperationOptions operationOptions,
bool resolveLinkTos = false,
Action <StreamSubscription, SubscriptionDroppedReason, Exception> subscriptionDropped = default,
IEventFilter filter = null,
UserCredentials userCredentials = default,
CancellationToken cancellationToken = default)
{
operationOptions.TimeoutAfter = DeadLine.None;
var subscription = new StreamSubscription(ReadInternal(new ReadReq {
Options = new ReadReq.Types.Options {
ReadDirection = ReadReq.Types.Options.Types.ReadDirection.Forwards,
ResolveLinks = resolveLinkTos,
All = ReadReq.Types.Options.Types.AllOptions.FromPosition(Position.Start),
Subscription = new ReadReq.Types.Options.Types.SubscriptionOptions(),
Filter = GetFilterOptions(filter)
}
}, operationOptions, userCredentials, cancellationToken), eventAppeared,
subscriptionDropped);
return(subscription);
}
public static CallOptions Create(EventStoreClientSettings settings, EventStoreClientOperationOptions operationOptions, UserCredentials? userCredentials, CancellationToken cancellationToken) => new(
private async Task <IWriteResult> AppendToStreamInternal(
AppendReq header,
IEnumerable <EventData> eventData,
EventStoreClientOperationOptions operationOptions,
UserCredentials?userCredentials,
CancellationToken cancellationToken)
{
using var call = new Streams.Streams.StreamsClient(
await SelectCallInvoker(cancellationToken).ConfigureAwait(false)).Append(EventStoreCallOptions.Create(
Settings, operationOptions, userCredentials, cancellationToken));
IWriteResult writeResult;
try {
await call.RequestStream.WriteAsync(header).ConfigureAwait(false);
foreach (var e in eventData)
{
_log.LogTrace("Appending event to stream - {streamName}@{eventId} {eventType}.",
header.Options.StreamIdentifier, e.EventId, e.Type);
await call.RequestStream.WriteAsync(new AppendReq {
ProposedMessage = new AppendReq.Types.ProposedMessage {
Id = e.EventId.ToDto(),
Data = ByteString.CopyFrom(e.Data.Span),
CustomMetadata = ByteString.CopyFrom(e.Metadata.Span),
Metadata =
{
{ Constants.Metadata.Type, e.Type },
{ Constants.Metadata.ContentType, e.ContentType }
}
}
}).ConfigureAwait(false);
}
} finally {
await call.RequestStream.CompleteAsync().ConfigureAwait(false);
var response = await call.ResponseAsync.ConfigureAwait(false);
if (response.Success != null)
{
writeResult = new SuccessResult(response.Success.CurrentRevisionOptionCase ==
AppendResp.Types.Success.CurrentRevisionOptionOneofCase.NoStream
? StreamRevision.None
: new StreamRevision(response.Success.CurrentRevision),
response.Success.PositionOptionCase == AppendResp.Types.Success.PositionOptionOneofCase.Position
? new Position(response.Success.Position.CommitPosition,
response.Success.Position.PreparePosition)
: default);
_log.LogDebug("Append to stream succeeded - {streamName}@{logPosition}/{nextExpectedVersion}.",
header.Options.StreamIdentifier, writeResult.LogPosition, writeResult.NextExpectedStreamRevision);
}
else
{
if (response.WrongExpectedVersion != null)
{
var actualStreamRevision = response.WrongExpectedVersion.CurrentRevisionOptionCase switch {
AppendResp.Types.WrongExpectedVersion.CurrentRevisionOptionOneofCase.CurrentNoStream =>
StreamRevision.None,
_ => new StreamRevision(response.WrongExpectedVersion.CurrentRevision)
};
_log.LogDebug(
"Append to stream failed with Wrong Expected Version - {streamName}/{expectedRevision}/{currentRevision}",
header.Options.StreamIdentifier, new StreamRevision(header.Options.Revision),
actualStreamRevision);
if (operationOptions.ThrowOnAppendFailure)
{
if (response.WrongExpectedVersion.ExpectedRevisionOptionCase == AppendResp.Types
.WrongExpectedVersion.ExpectedRevisionOptionOneofCase.ExpectedRevision)
{
throw new WrongExpectedVersionException(header.Options.StreamIdentifier,
new StreamRevision(response.WrongExpectedVersion.ExpectedRevision),
actualStreamRevision);
}
var expectedStreamState = response.WrongExpectedVersion.ExpectedRevisionOptionCase switch {
AppendResp.Types.WrongExpectedVersion.ExpectedRevisionOptionOneofCase.ExpectedAny =>
StreamState.Any,
AppendResp.Types.WrongExpectedVersion.ExpectedRevisionOptionOneofCase.ExpectedNoStream =>
StreamState.NoStream,
AppendResp.Types.WrongExpectedVersion.ExpectedRevisionOptionOneofCase.ExpectedStreamExists =>
StreamState.StreamExists,
_ => throw new InvalidOperationException()
};
throw new WrongExpectedVersionException(header.Options.StreamIdentifier,
expectedStreamState, actualStreamRevision);
}
if (response.WrongExpectedVersion.ExpectedRevisionOptionCase == AppendResp.Types
.WrongExpectedVersion.ExpectedRevisionOptionOneofCase.ExpectedRevision)
{
writeResult = new WrongExpectedVersionResult(header.Options.StreamIdentifier,
new StreamRevision(response.WrongExpectedVersion.ExpectedRevision),
actualStreamRevision);
}
else
{
writeResult = new WrongExpectedVersionResult(header.Options.StreamIdentifier,
StreamRevision.None,
actualStreamRevision);
}
}
else
{
throw new InvalidOperationException("The operation completed with an unexpected result.");
}
}
}
return(writeResult);
}
}
}
