private void ProcessEvents(WatchResponse response)
{
WatcherImpl watcher = null;
this.watchers.TryGetValue(response.GetWatchId(), out watcher);
if (watcher == null)
{
// cancel server side watcher.
this.CancelWatcher(response.GetWatchId());
return;
}
if (response.GetCompactRevision() != 0)
{
watcher.Enqueue(new WatchResponseWithError(
new EtcdException(response.GetCompactRevision())));
return;
}
if (response.GetEventsCount() == 0)
{
watcher.SetRevision(response.GetHeader().GetRevision());
return;
}
watcher.Enqueue(new WatchResponseWithError(response));
//watcher.SetRevision(
// response.GetEvents(response.GetEventsCount() - 1)
// .GetKv().getModRevision() + 1);
}
private void ProcessCanceled(WatchResponse response)
{
WatcherImpl watcher = null;
this.watchers.TryGetValue(response.GetWatchId(), out watcher);
this.cancelSet.Remove(response.GetWatchId());
if (watcher == null)
{
return;
}
string reason = response.GetCancelReason();
if (string.IsNullOrEmpty(reason))
{
watcher.Enqueue(new WatchResponseWithError(new EtcdException(
ErrorCode.OUT_OF_RANGE,
"etcdserver: mvcc: required revision is a future revision"))
);
}
else
{
watcher.Enqueue(
new WatchResponseWithError(new EtcdException(ErrorCode.FAILED_PRECONDITION, reason)));
}
}
private void ProcessCreate(WatchResponse response)
{
WatcherImpl watcher = null;
this.pendingWatchers.TryDequeue(out watcher);
this.SendNextWatchCreateRequest();
if (watcher == null)
{
// shouldn't happen
// may happen due to duplicate watch create responses.
// LOG.warn("Watch client receives watch create response but find no corresponding watcher");
return;
}
if (watcher.IsClosed())
{
return;
}
if (response.GetWatchId() == -1)
{
watcher.Enqueue(new WatchResponseWithError(
new EtcdException(ErrorCode.INTERNAL, "etcd server failed to create watch id")));
return;
}
if (watcher.GetRevision() == 0)
{
watcher.SetRevision(response.GetHeader().GetRevision());
}
watcher.SetWatchID(response.GetWatchId());
this.watchers[watcher.GetWatchID()] = watcher;
}
