public FeedProcessorCore(
ChangeFeedObserver <T> observer,
FeedIterator resultSetIterator,
ProcessorSettings settings,
PartitionCheckpointer checkpointer,
CosmosJsonSerializer cosmosJsonSerializer)
{
this.observer = observer;
this.settings = settings;
this.checkpointer = checkpointer;
this.resultSetIterator = resultSetIterator;
this.cosmosJsonSerializer = cosmosJsonSerializer;
}
public FeedProcessorCore(ChangeFeedObserver <T> observer, CosmosContainer container, ProcessorSettings settings, PartitionCheckpointer checkpointer)
{
this.observer = observer;
this.settings = settings;
this.checkpointer = checkpointer;
this.options = new ChangeFeedOptions
{
MaxItemCount = settings.MaxItemCount,
PartitionKeyRangeId = settings.LeaseToken,
SessionToken = settings.SessionToken,
StartFromBeginning = settings.StartFromBeginning,
RequestContinuation = settings.StartContinuation,
StartTime = settings.StartTime,
};
this.query = container.Client.DocumentClient.CreateDocumentChangeFeedQuery(container.LinkUri.ToString(), this.options);
}
public override FeedProcessor Create(DocumentServiceLease lease, ChangeFeedObserver <T> observer)
{
if (observer == null)
{
throw new ArgumentNullException(nameof(observer));
}
if (lease == null)
{
throw new ArgumentNullException(nameof(lease));
}
ProcessorSettings settings = new ProcessorSettings
{
StartContinuation = !string.IsNullOrEmpty(lease.ContinuationToken) ?
lease.ContinuationToken :
this.changeFeedProcessorOptions.StartContinuation,
LeaseToken = lease.CurrentLeaseToken,
FeedPollDelay = this.changeFeedProcessorOptions.FeedPollDelay,
MaxItemCount = this.changeFeedProcessorOptions.MaxItemCount,
StartFromBeginning = this.changeFeedProcessorOptions.StartFromBeginning,
StartTime = this.changeFeedProcessorOptions.StartTime,
SessionToken = this.changeFeedProcessorOptions.SessionToken,
};
string partitionKeyRangeId = lease.CurrentLeaseToken;
PartitionCheckpointerCore checkpointer = new PartitionCheckpointerCore(this.leaseCheckpointer, lease);
ChangeFeedPartitionKeyResultSetIteratorCore iterator = ResultSetIteratorUtils.BuildResultSetIterator(
partitionKeyRangeId: partitionKeyRangeId,
continuationToken: settings.StartContinuation,
maxItemCount: settings.MaxItemCount,
cosmosContainer: this.container,
startTime: settings.StartTime,
startFromBeginning: settings.StartFromBeginning);
return(new FeedProcessorCore <T>(observer, iterator, settings, checkpointer, this.cosmosJsonSerializer));
}
