public IWatcher Watch(ByteSequence key, WatchOption watchOption)
{
if (IsClosed())
{
throw new ClosedWatchClientException();
}
WatcherImpl watcher = new WatcherImpl(key, watchOption, this);
// this.pendingWatchers.Enqueue(watcher);
Etcdserverpb.WatchRequest request = new Etcdserverpb.WatchRequest();
Etcdserverpb.WatchCreateRequest createRequest = new Etcdserverpb.WatchCreateRequest();
createRequest.Key = key.GetByteString();
createRequest.PrevKv = watchOption.isPrevKV();
createRequest.ProgressNotify = watchOption.isProgressNotify();
createRequest.RangeEnd = watchOption.getEndKey().GetByteString();
createRequest.StartRevision = watchOption.getRevision();
request.CreateRequest = createRequest;
Grpc.Core.CallOptions callOptions = new Grpc.Core.CallOptions();
watchClient.Watch(callOptions);
// watchClient.Watch()
// watchClient.Watch()
// if (this.pendingWatchers.Count == 1) {
// head of the queue send watchCreate request.
// WatchRequest request = this.toWatchCreateRequest(watcher);
// this.getGrpcWatchStreamObserver().onNext(request);
// }
return(watcher);
}
public void Resume()
{
if (closed)
{
return;
}
if (stream == null)
{
// id is not really useful today but it may be in etcd 3.4
watchID = -1;
Etcdserverpb.WatchCreateRequest createRequest = new Etcdserverpb.WatchCreateRequest
{
Key = key.GetByteString(),
PrevKv = watchOption.IsPrevKV,
ProgressNotify = watchOption.IsProgressNotify,
RangeEnd = watchOption.EndKey.GetByteString(),
StartRevision = watchOption.Revision
};
if (watchOption.EndKey.IsPresent)
{
createRequest.RangeEnd = watchOption.EndKey.GetByteString();
}
if (watchOption.IsNoDelete)
{
createRequest.Filters.Add(Etcdserverpb.WatchCreateRequest.Types.FilterType.Nodelete);
}
if (watchOption.IsNoPut)
{
createRequest.Filters.Add(Etcdserverpb.WatchCreateRequest.Types.FilterType.Noput);
}
Grpc.Core.CallOptions callOptions = new Grpc.Core.CallOptions();
Etcdserverpb.WatchRequest request = new Etcdserverpb.WatchRequest
{
CreateRequest = createRequest
};
var rsp = watchClient.Watch(callOptions);
rsp.RequestStream.WriteAsync(request);
stream = rsp;
this.watchID = rsp.ResponseStream.Current.WatchId;
}
}
private static Etcdserverpb.WatchRequest ToWatchCreateRequest(WatcherImpl watcher)
{
ByteString key = watcher.GetKey().GetByteString();
WatchOption option = watcher.GetWatchOption();
Etcdserverpb.WatchCreateRequest watchCreate = new Etcdserverpb.WatchCreateRequest();
watchCreate.Key = key;
watchCreate.PrevKv = option.isPrevKV();
watchCreate.ProgressNotify = option.isProgressNotify();
watchCreate.StartRevision = watcher.GetRevision();
watchCreate.RangeEnd = option.getEndKey().GetByteString();
if (option.isNoDelete())
{
watchCreate.Filters.Add(Etcdserverpb.WatchCreateRequest.Types.FilterType.Nodelete);
}
if (option.isNoPut())
{
watchCreate.Filters.Add(Etcdserverpb.WatchCreateRequest.Types.FilterType.Noput);
}
Etcdserverpb.WatchRequest request = new Etcdserverpb.WatchRequest();
request.CreateRequest = watchCreate;
return(request);
}
private void CancelWatcher(long id)
{
lock (this)
{
if (this.IsClosed())
{
return;
}
if (this.cancelSet.Contains(id))
{
return;
}
WatcherImpl W;
this.watchers.TryRemove(id, out W);
this.cancelSet.Add(id);
Etcdserverpb.WatchCancelRequest watchCancelRequest = new Etcdserverpb.WatchCancelRequest();
watchCancelRequest.WatchId = id;
Etcdserverpb.WatchRequest request = new Etcdserverpb.WatchRequest();
request.CancelRequest = watchCancelRequest;
//this.getGrpcWatchStreamObserver().onNext(cancelRequest);
}
}
