public async Task <SyncState> ReadAsync(CancellationToken cancellationToken)
{
BlockBlobClient blob = GetBlockBlobClient();
if (await blob.ExistsAsync(cancellationToken))
{
string syncStateString;
try
{
await using (var stream = new MemoryStream())
{
await blob.DownloadToAsync(stream, cancellationToken);
syncStateString = _jsonTextEncoding.GetString(stream.ToArray());
}
}
catch (Exception ex)
{
throw new DataStoreException(ex);
}
return(JsonConvert.DeserializeObject <SyncState>(syncStateString));
}
return(SyncState.CreateInitialSyncState());
}
public async Task <SyncState> ReadAsync(CancellationToken cancellationToken = default)
{
CloudTable table = _client.GetTableReference(Constants.SyncStateTableName);
TableOperation retrieveOperation = TableOperation.Retrieve <SyncStateEntity>(Constants.SyncStatePartitionKey, Constants.SyncStateRowKey);
TableResult result = await table.ExecuteAsync(retrieveOperation, cancellationToken);
return(result.Result is SyncStateEntity syncState
? new SyncState(syncState.SyncedSequence, syncState.Timestamp)
: SyncState.CreateInitialSyncState());
}
public async Task <SyncState> ReadAsync(CancellationToken cancellationToken = default)
{
TableClient tableClient = _tableServiceClient.GetTableClient(Constants.SyncStateTableName);
try
{
var entity = await tableClient.GetEntityAsync <SyncStateEntity>(Constants.SyncStatePartitionKey, Constants.SyncStateRowKey, cancellationToken : cancellationToken);
return(new SyncState(entity.Value.SyncedSequence, entity.Value.Timestamp.Value));
}
catch (RequestFailedException)
{
return(SyncState.CreateInitialSyncState());
}
}