/// <summary>
/// Initializes a new instance of the <see cref="DocumentDB.ChangeFeedProcessor.ChangeFeedEventHost"/> class.
/// </summary>
/// <param name="hostName">Unique name for this host.</param>
/// <param name="documentCollectionLocation">Specifies location of the DocumentDB collection to monitor changes for.</param>
/// <param name="auxCollectionLocation">Specifies location of auxiliary data for load-balancing instances of <see cref="DocumentDB.ChangeFeedProcessor.ChangeFeedEventHost" />.</param>
/// <param name="changeFeedOptions">Options to pass to the Microsoft.AzureDocuments.DocumentClient.CreateChangeFeedQuery API.</param>
/// <param name="hostOptions">Additional options to control load-balancing of <see cref="DocumentDB.ChangeFeedProcessor.ChangeFeedEventHost" /> instances.</param>
public ChangeFeedEventHost(
string hostName,
DocumentCollectionInfo documentCollectionLocation,
DocumentCollectionInfo auxCollectionLocation,
ChangeFeedOptions changeFeedOptions,
ChangeFeedHostOptions hostOptions)
{
if (documentCollectionLocation == null)
{
throw new ArgumentException("documentCollectionLocation");
}
if (documentCollectionLocation.Uri == null)
{
throw new ArgumentException("documentCollectionLocation.Uri");
}
if (string.IsNullOrWhiteSpace(documentCollectionLocation.DatabaseName))
{
throw new ArgumentException("documentCollectionLocation.DatabaseName");
}
if (string.IsNullOrWhiteSpace(documentCollectionLocation.CollectionName))
{
throw new ArgumentException("documentCollectionLocation.CollectionName");
}
if (hostOptions.MinPartitionCount > hostOptions.MaxPartitionCount)
{
throw new ArgumentException("hostOptions.MinPartitionCount cannot be greater than hostOptions.MaxPartitionCount");
}
this.collectionLocation = CanoninicalizeCollectionInfo(documentCollectionLocation);
this.changeFeedOptions = changeFeedOptions;
this.options = hostOptions;
this.HostName = hostName;
this.auxCollectionLocation = CanoninicalizeCollectionInfo(auxCollectionLocation);
this.partitionKeyRangeIdToWorkerMap = new ConcurrentDictionary <string, WorkerData>();
}
public PartitionManager(string workerName, ILeaseManager <T> leaseManager, ChangeFeedHostOptions options)
{
this.workerName = workerName;
this.leaseManager = leaseManager;
this.options = options;
this.currentlyOwnedPartitions = new ConcurrentDictionary <string, T>();
this.keepRenewingDuringClose = new ConcurrentDictionary <string, T>();
this.partitionObserverManager = new PartitionObserverManager(this);
}