/// <summary>
/// Registers change feed observer to update changes read on change feed to destination
/// collection. Deregisters change feed observer and closes process when enter key is pressed
/// </summary>
/// <returns>A Task to allow asynchronous execution</returns>
public async Task RunChangeFeedHostAsync()
{
string hostName = Guid.NewGuid().ToString();
// monitored collection info
DocumentCollectionInfo documentCollectionInfo = new DocumentCollectionInfo
{
Uri = new Uri(this.monitoredUri),
MasterKey = this.monitoredSecretKey,
DatabaseName = this.monitoredDbName,
CollectionName = this.monitoredCollectionName
};
DocumentCollectionInfo leaseCollectionInfo = new DocumentCollectionInfo
{
Uri = new Uri(this.leaseUri),
MasterKey = this.leaseSecretKey,
DatabaseName = this.leaseDbName,
CollectionName = this.leaseCollectionName
};
DocumentFeedObserverFactory docObserverFactory = new DocumentFeedObserverFactory();
ChangeFeedOptions feedOptions = new ChangeFeedOptions();
/* ie customize StartFromBeginning so change feed reads from beginning
* can customize MaxItemCount, PartitonKeyRangeId, RequestContinuation, SessionToken and StartFromBeginning
*/
feedOptions.StartFromBeginning = true;
ChangeFeedProcessorOptions feedProcessorOptions = new ChangeFeedProcessorOptions();
// ie. customizing lease renewal interval to 15 seconds
// can customize LeaseRenewInterval, LeaseAcquireInterval, LeaseExpirationInterval, FeedPollDelay
feedProcessorOptions.LeaseRenewInterval = TimeSpan.FromSeconds(15);
this.builder
.WithHostName(hostName)
.WithFeedCollection(documentCollectionInfo)
.WithLeaseCollection(leaseCollectionInfo)
.WithProcessorOptions(feedProcessorOptions)
.WithObserverFactory(new DocumentFeedObserverFactory());
// .WithObserver<DocumentFeedObserver>(); or just pass a observer
var result = await this.builder.BuildAsync();
await result.StartAsync();
Console.Read();
await result.StopAsync();
}
/// <summary>
/// Registers change feed observer to update changes read on change feed to destination
/// collection. Deregisters change feed observer and closes process when enter key is pressed
/// </summary>
/// <returns>A Task to allow asynchronous execution</returns>
public async Task RunChangeFeedHostAsync()
{
string hostName = Guid.NewGuid().ToString();
// monitored collection info
DocumentCollectionInfo documentCollectionInfo = new DocumentCollectionInfo
{
Uri = new Uri(this.monitoredUri),
MasterKey = this.monitoredSecretKey,
DatabaseName = this.monitoredDbName,
CollectionName = this.monitoredCollectionName
};
DocumentCollectionInfo leaseCollectionInfo = new DocumentCollectionInfo
{
Uri = new Uri(this.leaseUri),
MasterKey = this.leaseSecretKey,
DatabaseName = this.leaseDbName,
CollectionName = this.leaseCollectionName
};
DocumentFeedObserverFactory docObserverFactory = new DocumentFeedObserverFactory();
ChangeFeedProcessorOptions feedProcessorOptions = new ChangeFeedProcessorOptions();
feedProcessorOptions.StartFromBeginning = true;
// ie. customizing lease renewal interval to 15 seconds
// can customize LeaseRenewInterval, LeaseAcquireInterval, LeaseExpirationInterval, FeedPollDelay
feedProcessorOptions.LeaseRenewInterval = TimeSpan.FromSeconds(15);
ChangeFeedProcessorBuilder builder = new ChangeFeedProcessorBuilder();
builder
.WithHostName(hostName)
.WithFeedCollection(documentCollectionInfo)
.WithLeaseCollection(leaseCollectionInfo)
.WithProcessorOptions(feedProcessorOptions)
.WithPartitionLoadBalancingStrategy(new LoadBalancingStrategy())
.WithObserverFactory(new DocumentFeedObserverFactory());
var result = await builder.BuildAsync();
await result.StartAsync();
Console.Read();
await result.StopAsync();
}
