async Task IBotDataStore <BotData> .SaveAsync(IAddress key, BotStoreType botStoreType, BotData botData, CancellationToken cancellationToken)
{
var entityKey = BotDataEntity.GetEntityKey(key, botStoreType);
BotDataEntity entity = new BotDataEntity(key.BotId, key.ChannelId, key.ConversationId, key.UserId, botData.Data)
{
ETag = botData.ETag
};
entity.PartitionKey = entityKey.PartitionKey;
entity.RowKey = entityKey.RowKey;
try
{
if (String.IsNullOrEmpty(entity.ETag))
{
await this.Table.ExecuteAsync(TableOperation.Insert(entity));
}
else if (entity.ETag == "*")
{
if (botData.Data != null)
{
await this.Table.ExecuteAsync(TableOperation.InsertOrReplace(entity));
}
else
{
await this.Table.ExecuteAsync(TableOperation.Delete(entity));
}
}
else
{
if (botData.Data != null)
{
await this.Table.ExecuteAsync(TableOperation.Replace(entity));
}
else
{
await this.Table.ExecuteAsync(TableOperation.Delete(entity));
}
}
}
catch (StorageException err)
{
if ((HttpStatusCode)err.RequestInformation.HttpStatusCode == HttpStatusCode.Conflict)
{
throw new HttpException((int)HttpStatusCode.PreconditionFailed, err.RequestInformation.HttpStatusMessage);
}
throw new HttpException(err.RequestInformation.HttpStatusCode, err.RequestInformation.HttpStatusMessage);
}
}
async Task <BotData> IBotDataStore <BotData> .LoadAsync(IAddress key, BotStoreType botStoreType, CancellationToken cancellationToken)
{
var entityKey = BotDataEntity.GetEntityKey(key, botStoreType);
try
{
var result = await this.Table.ExecuteAsync(TableOperation.Retrieve <BotDataEntity>(entityKey.PartitionKey, entityKey.RowKey));
BotDataEntity entity = (BotDataEntity)result.Result;
if (entity == null)
{
// empty record ready to be saved
return(new BotData(eTag: String.Empty, data: null));
}
// return botdata
return(new BotData(entity.ETag, entity.GetData()));
}
catch (StorageException err)
{
throw new HttpException(err.RequestInformation.HttpStatusCode, err.RequestInformation.HttpStatusMessage);
}
}
