Checkpointer(string id, ICheckpointStore store, CheckpointData checkpointData)
{
this.Id = Preconditions.CheckNotNull(id);
this.store = Preconditions.CheckNotNull(store);
this.Offset = checkpointData.Offset;
this.LastFailedRevivalTime = checkpointData.LastFailedRevivalTime;
this.UnhealthySince = checkpointData.UnhealthySince;
this.Proposed = checkpointData.Offset;
this.closed = new AtomicBoolean(false);
}
public NullCheckpointStore(long offset)
{
var data = new CheckpointData(offset);
this.initialCheckpointData = Task.FromResult(data);
this.initialCheckpointDataMap = Task.FromResult(new Dictionary <string, CheckpointData>()
{
{ "NullCheckpoint", data }
} as IDictionary <string, CheckpointData>);
}
Checkpointer(string id, ICheckpointStore store, CheckpointData checkpointData, string endpointId, uint priority)
{
this.Id = Preconditions.CheckNotNull(id);
this.store = Preconditions.CheckNotNull(store);
this.Offset = checkpointData.Offset;
this.LastFailedRevivalTime = checkpointData.LastFailedRevivalTime;
this.UnhealthySince = checkpointData.UnhealthySince;
this.Proposed = checkpointData.Offset;
this.closed = new AtomicBoolean(false);
this.EndpointId = endpointId;
this.Priority = priority.ToString();
}
public static async Task <Checkpointer> CreateAsync(string id, ICheckpointStore store)
{
Preconditions.CheckNotNull(id);
Preconditions.CheckNotNull(store);
Events.CreateStart(id);
CheckpointData checkpointData = await store.GetCheckpointDataAsync(id, CancellationToken.None);
var checkpointer = new Checkpointer(id, store, checkpointData);
Events.CreateFinished(checkpointer);
return(checkpointer);
}
public static async Task <MasterCheckpointer> CreateAsync(string id, ICheckpointStore store)
{
Preconditions.CheckNotNull(id);
Preconditions.CheckNotNull(store);
Events.CreateStart(id);
CheckpointData checkpointData = await store.GetCheckpointDataAsync(id, CancellationToken.None);
long offset = checkpointData.Offset;
var masterCheckpointer = new MasterCheckpointer(id, store, offset);
Events.CreateFinished(masterCheckpointer);
return(masterCheckpointer);
}
Checkpointer(string id, ICheckpointStore store, CheckpointData checkpointData)
{
this.Id = Preconditions.CheckNotNull(id);
this.store = Preconditions.CheckNotNull(store);
this.Offset = checkpointData.Offset;
this.LastFailedRevivalTime = checkpointData.LastFailedRevivalTime;
this.UnhealthySince = checkpointData.UnhealthySince;
this.Proposed = checkpointData.Offset;
this.closed = new AtomicBoolean(false);
// The endpoint ID and priority is encoded into the checkpointer ID
// using the following format:
// {endpointId}_Pri{priority}
// We use "_Pri" as a delimiter to parse the endpoint ID and priority
// back out for metrics reporting
string[] tokens = id.Split(new string[] { "_Pri" }, System.StringSplitOptions.RemoveEmptyEntries);
switch (tokens.Length)
{
case 1:
// There's no priority value, which means this is
// the checkpointer for the default priority
this.EndpointId = tokens[0];
this.Priority = RouteFactory.DefaultPriority.ToString();
break;
case 2:
this.EndpointId = tokens[0];
this.Priority = tokens[1];
break;
default:
// Bad format (maybe due to testcase or some other such)
this.EndpointId = string.Empty;
this.Priority = string.Empty;
break;
}
}
public Task SetCheckpointDataAsync(string id, CheckpointData checkpointData, CancellationToken token)
{
this.checkpointDataMap[id] = checkpointData;
return(TaskEx.Done);
}
public Task SetCheckpointDataAsync(string id, CheckpointData checkpointData, CancellationToken token) => TaskEx.Done;
