public async Task WriteStateAsync(string grainType, GrainReference grainReference, IGrainState grainState)
{
var key = GetKey(grainReference, grainState);
//_logger.LogInformation($"Put {grainType} {grainReference.GetPrimaryKeyString()}");
var bins = _aerospikeSerializer.Serialize(grainState);
try
{
if (!string.IsNullOrEmpty(grainState.ETag) && _options.VerifyEtagGenerations)
{
await _client.Put(
new WritePolicy()
{
sendKey = true,
generationPolicy = GenerationPolicy.EXPECT_GEN_EQUAL,
generation = int.Parse(grainState.ETag)
}, Task.Factory.CancellationToken, key, bins);
grainState.ETag = (int.Parse(grainState.ETag) + 1).ToString(); // +1
}
else
{
await _client.Put(new WritePolicy()
{
sendKey = true
}, Task.Factory.CancellationToken, key, bins);
grainState.ETag = "1"; // initial 1
}
}
catch (AerospikeException aep)
{
if (aep.Result == 3)
{
throw new InconsistentStateException($"Generation conflict while writing Grain Type {grainType} with key {grainReference.ToKeyString()}. Error:{aep.Message}", grainState.ETag, "?");
}
_logger.LogError(aep, $"Failure writing state for Grain Type {grainType} with key {grainReference.ToKeyString()}.");
throw new AerospikeOrleansException(aep.Message); // simple serializable excepction
}
catch (Exception exp)
{
_logger.LogError(exp, $"Failure writing state for Grain Type {grainType} with key {grainReference.ToKeyString()}.");
throw;
}
}
public async Task WriteStateAsync(string grainType, GrainReference grainReference, IGrainState grainState)
{
var key = GetKey(grainReference, grainState);
//_logger.LogInformation($"Put {grainType} {grainReference.GetPrimaryKeyString()}");
var bins = _aerospikeSerializer.Serialize(grainState);
try
{
var ops = bins.Select(p => new Operation(Operation.Type.WRITE, p.name, p.value)).ToList();
ops.Add(new Operation(Operation.Type.READ_HEADER, "", Value.AsNull));
if (!string.IsNullOrEmpty(grainState.ETag) && _options.VerifyEtagGenerations)
{
var record = await _client.Operate(new WritePolicy(_writeStatePolicy)
{
generationPolicy = GenerationPolicy.EXPECT_GEN_EQUAL,
generation = int.Parse(grainState.ETag),
}, Task.Factory.CancellationToken, key, ops.ToArray());
grainState.ETag = record.generation.ToString();
}
else
{
var record = await _client.Operate(_writeStatePolicy, Task.Factory.CancellationToken, key, ops.ToArray());
grainState.ETag = record.generation.ToString();
}
grainState.RecordExists = true;
}
catch (AerospikeException aep)
{
if (aep.Result == 3)
{
throw new InconsistentStateException($"Generation conflict while writing Grain Type {grainType} with key {grainReference.ToKeyString()}. Error:{aep.Message}", grainState.ETag, "?");
}
_logger.LogError(aep, $"Failure writing state for Grain Type {grainType} with key {grainReference.ToKeyString()}.");
throw new AerospikeOrleansException(aep.Message); // simple serializable excepction
}
catch (Exception exp)
{
_logger.LogError(exp, $"Failure writing state for Grain Type {grainType} with key {grainReference.ToKeyString()}.");
throw;
}
}