public string GetAndUpdate(string partitionId, string objectId, ReadAdvancedResponse response = null)
{
Console.WriteLine("Get and update");
ReadAdvancedResponse req = null;
var obj = new PartitionObject(partitionId, objectId);
if (_previousValues.TryGetValue(obj, out req))
{
if (response == null)
{
return(req.ObjectValue);
}
if (req.Timestamp <= response.Timestamp)
{
_previousValues[obj] = response;
return(response.ObjectValue);
}
return(req.ObjectValue);
}
else
{
if (response == null)
{
return(_service.ObjectNotPresent);
}
_previousValues.Add(obj, response);
return(response.ObjectValue);
}
}
public void WriteToCache(string partitionId, string objectId, string objectValue, int timestamp)
{
ReadAdvancedResponse req = null;
var r = new ReadAdvancedResponse {
ObjectValue = objectValue, Timestamp = timestamp
};
var obj = new PartitionObject(partitionId, objectId);
if (!_previousValues.TryGetValue(obj, out req))
{
_previousValues.Add(obj, r);
}
else
{
_previousValues[obj] = r;
}
}
private ReadAdvancedResponse ReadAdvanced(ReadAdvancedRequest request)
{
Console.WriteLine("Received Read Request: " + request.ToString());
try {
var partitionId = request.PartitionId;
var objectId = request.ObjectId;
var partition = _storage.GetPartitionOrThrowException(partitionId);
var objectValue = _storage.ReadAdvanced(partitionId, objectId);
var response = new ReadAdvancedResponse {
ObjectValue = objectValue.value,
Timestamp = objectValue.timestampCounter
};
return(response);
}
catch (Exception) {
/*Partition not founded */
return(new ReadAdvancedResponse {
ObjectValue = "N/A"
});
}
}
