/// <summary>
///
/// </summary>
/// <returns></returns>
static async Task RunProcessingAsync()
{
DocumentCollectionInfo feedCollectionInfo = new DocumentCollectionInfo()
{
DatabaseName = Constants.CosmosDb_DatabaseName,
CollectionName = Constants.CosmosDb_CollectionName,
Uri = new Uri(Constants.CosmosDb_Uri),
MasterKey = Constants.CosmosDb_Key
};
DocumentCollectionInfo leaseCollectionInfo = new DocumentCollectionInfo()
{
DatabaseName = Constants.CosmosDb_DatabaseName,
CollectionName = "leases",
Uri = new Uri(Constants.CosmosDb_Uri),
MasterKey = Constants.CosmosDb_Key
};
var builder = new ChangeFeedProcessorBuilder();
var processor = await builder
.WithHostName("ProductChangeObserverHost")
.WithFeedCollection(feedCollectionInfo)
.WithLeaseCollection(leaseCollectionInfo)
.WithObserver <ProductChangeObserver>()
.BuildAsync();
await processor.StartAsync();
Console.WriteLine("Change Feed Processor started. Press <Enter> key to stop...");
Console.ReadLine();
await processor.StopAsync();
}
public async Task StartAsync()
{
var feedCollectionInfo = new DocumentCollectionInfo
{
DatabaseName = _database,
CollectionName = _eventContainer,
Uri = new Uri(_endpointUri),
MasterKey = _authKey
};
var leaseCollectionInfo = new DocumentCollectionInfo
{
DatabaseName = _database,
CollectionName = _leaseContainer,
Uri = new Uri(_endpointUri),
MasterKey = _authKey
};
var viewRepository = new CosmosDBViewRepository(_endpointUri, _authKey, _database);
var builder = new ChangeFeedProcessorBuilder();
_changeFeedProcessor = await builder
.WithHostName("ProjectionHost")
.WithFeedCollection(feedCollectionInfo)
.WithLeaseCollection(leaseCollectionInfo)
.WithObserverFactory(new EventObserverFactory(_projections, viewRepository))
.WithProcessorOptions(new ChangeFeedProcessorOptions {
StartFromBeginning = true
})
.BuildAsync();
await _changeFeedProcessor.StartAsync();
}
private static ChangeFeedProcessorBuilder CreateBuilder <T>(DocumentClient client) where T : DocumentBase
{
var builder = new ChangeFeedProcessorBuilder();
var uri = new Uri(CosmosUrl);
var dbClient = new ChangeFeedDocumentClient(client);
builder
.WithHostName(HostName)
.WithFeedCollection(new DocumentCollectionInfo
{
DatabaseName = typeof(T).Name,
CollectionName = "Items",
Uri = uri,
MasterKey = CosmosKey
})
.WithLeaseCollection(new DocumentCollectionInfo
{
DatabaseName = typeof(T).Name,
CollectionName = "Leases",
Uri = uri,
MasterKey = CosmosKey
})
.WithProcessorOptions(new ChangeFeedProcessorOptions
{
FeedPollDelay = TimeSpan.FromSeconds(15),
})
.WithFeedDocumentClient(dbClient)
.WithLeaseDocumentClient(dbClient)
.WithObserver <DocumentFeedObserver <T> >();
return(builder);
}
static async Task RunAsync()
{
DocumentCollectionInfo feedCollectionInfo = new DocumentCollectionInfo()
{
DatabaseName = "Sjaas",
CollectionName = "Job",
Uri = new Uri("to-be-filled"),
MasterKey = "to-be-filled"
};
DocumentCollectionInfo leaseCollectionInfo = new DocumentCollectionInfo()
{
DatabaseName = "Sjaas",
CollectionName = "Lease",
Uri = new Uri("to-be-filled"),
MasterKey = "to-be-filled"
};
var builder = new ChangeFeedProcessorBuilder();
var processor = await builder
.WithHostName("SjaasWorker")
.WithFeedCollection(feedCollectionInfo)
.WithLeaseCollection(leaseCollectionInfo)
.WithObserver <SjaasWorker>()
.BuildAsync();
await processor.StartAsync();
Console.WriteLine("Change Feed Processor started. Press <Enter> key to stop...");
Console.ReadLine();
await processor.StopAsync();
}
protected override async Task ExecuteAsync(CancellationToken stoppingToken)
{
try
{
Log("ExecuteAsync");
var hostName = _cosmosSettings.HostName;
var dbName = _cosmosSettings.DatabaseName;
var key = _cosmosSettings.Key;
var uri = _cosmosSettings.Uri;
DocumentCollectionInfo feedCollectionInfo = new DocumentCollectionInfo()
{
DatabaseName = dbName,
CollectionName = _cosmosSettings.CollectionName,
Uri = new Uri(uri),
MasterKey = key
};
DocumentCollectionInfo leaseCollectionInfo = new DocumentCollectionInfo()
{
DatabaseName = dbName,
CollectionName = _cosmosSettings.LeaseCollectionName,
Uri = new Uri(uri),
MasterKey = key
};
var observerFactory = new CosmosDBObserverFactory(_memoryCache, _log);
var builder = new ChangeFeedProcessorBuilder();
var processor = await builder
.WithHostName(hostName)
.WithFeedCollection(feedCollectionInfo)
.WithLeaseCollection(leaseCollectionInfo)
.WithObserverFactory(observerFactory)
.BuildAsync();
Log("before StartAsync");
await processor.StartAsync();
Log("after StartAsync");
await Task.Delay(-1);
Console.WriteLine("Change Feed Processor started. Press <Enter> key to stop...");
Console.ReadLine();
Log("before StopAsync");
await processor.StopAsync();
Log("after StopAsync");
}
catch (Exception ex)
{
Log(ex.ToString());
}
}
/// <summary>
/// Registers a 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>
private async Task RunChangeFeedHostAsync()
{
string monitoredUri = ConfigurationManager.AppSettings["CosmosDBEndpointUri"];
string monitoredSecretKey = ConfigurationManager.AppSettings["CosmosDBAuthKey"];
string monitoredDbName = ConfigurationManager.AppSettings["DatabaseName"];
string monitoredContainerName = ConfigurationManager.AppSettings["ContainerName"];
// Source collection to be monitored for changes
DocumentCollectionInfo documentCollectionInfo = new DocumentCollectionInfo
{
Uri = new Uri(monitoredUri),
MasterKey = monitoredSecretKey,
DatabaseName = monitoredDbName,
CollectionName = monitoredContainerName
};
string leaseUri = ConfigurationManager.AppSettings["LeaseUri"];
string leaseSecretKey = ConfigurationManager.AppSettings["LeaseSecretKey"];
string leaseDbName = ConfigurationManager.AppSettings["LeaseDbName"];
string leaseContainerName = ConfigurationManager.AppSettings["LeaseContainerName"];
// Lease Collection managing leases on each of the underlying shards of the source collection being monitored
DocumentCollectionInfo leaseContainerInfo = new DocumentCollectionInfo
{
Uri = new Uri(leaseUri),
MasterKey = leaseSecretKey,
DatabaseName = leaseDbName,
CollectionName = leaseContainerName
};
DocumentFeedObserverFactory docObserverFactory = new DocumentFeedObserverFactory(this.DocumentClient);
ChangeFeedProcessorOptions feedProcessorOptions = new ChangeFeedProcessorOptions();
int feedPollDelayInSeconds = int.Parse(ConfigurationManager.AppSettings["FeedPollDelayInSeconds"]);
feedProcessorOptions.LeaseRenewInterval = TimeSpan.FromSeconds(240);
feedProcessorOptions.LeaseExpirationInterval = TimeSpan.FromSeconds(240);
feedProcessorOptions.FeedPollDelay = TimeSpan.FromMilliseconds(feedPollDelayInSeconds * 1000);
feedProcessorOptions.StartFromBeginning = true;
feedProcessorOptions.MaxItemCount = 2000;
ChangeFeedProcessorBuilder builder = new ChangeFeedProcessorBuilder();
builder
.WithHostName(this.HostName)
.WithFeedCollection(documentCollectionInfo)
.WithLeaseCollection(leaseContainerInfo)
.WithProcessorOptions(feedProcessorOptions)
.WithObserverFactory(new DocumentFeedObserverFactory(this.DocumentClient));
var result = await builder.BuildAsync();
await result.StartAsync().ConfigureAwait(false);
}
/// <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);
ChangeFeedProcessorBuilder builder = new ChangeFeedProcessorBuilder();
builder
.WithHostName(hostName)
.WithFeedCollection(documentCollectionInfo)
.WithLeaseCollection(leaseCollectionInfo)
.WithProcessorOptions(feedProcessorOptions)
.WithObserverFactory(new DocumentFeedObserverFactory());
// .WithObserver<DocumentFeedObserver>(); or just pass a observer
var result = await builder.BuildAsync();
await result.StartAsync();
Console.Read();
await result.StopAsync();
}
private static async Task RunChangeFeedHostAsync()
{
// monitored collection info
DocumentCollectionInfo documentCollectionInfo = new DocumentCollectionInfo
{
Uri = new Uri(cosmosSettings.DbUrl),
MasterKey = cosmosSettings.AuthorizationKey,
DatabaseName = cosmosSettings.DbName,
CollectionName = cosmosSettings.CollectionName
};
DocumentCollectionInfo leaseCollectionInfo = new DocumentCollectionInfo
{
Uri = new Uri(cosmosSettings.DbUrl),
MasterKey = cosmosSettings.AuthorizationKey,
DatabaseName = cosmosSettings.DbName,
CollectionName = cosmosSettings.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
*/
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);
ChangeFeedProcessorBuilder builder = new ChangeFeedProcessorBuilder();
builder
.WithHostName(hostName)
.WithFeedCollection(documentCollectionInfo)
.WithLeaseCollection(leaseCollectionInfo)
.WithProcessorOptions(feedProcessorOptions)
.WithObserverFactory(new DocumentFeedObserverFactory());
//.WithObserver<DocumentFeedObserver>(); If no factory then just pass an observer
var result = await builder.BuildAsync();
await result.StartAsync();
Console.Read();
await result.StopAsync();
}
static async Task DoProcessingAsync()
{
string hostName = Guid.NewGuid().ToString();
DocumentCollectionInfo feedCollectionInfo = new DocumentCollectionInfo()
{
DatabaseName = Constants.CosmosDb_DatabaseName,
CollectionName = Constants.CosmosDb_CollectionName,
Uri = new Uri(Constants.CosmosDb_Uri),
MasterKey = Constants.CosmosDb_Key
};
DocumentCollectionInfo leaseCollectionInfo = new DocumentCollectionInfo()
{
DatabaseName = Constants.CosmosDb_DatabaseName,
CollectionName = "Clothing",
Uri = new Uri(Constants.CosmosDb_Uri),
MasterKey = Constants.CosmosDb_Key
};
var builder = new ChangeFeedProcessorBuilder();
ChangeFeedProcessorOptions feedProcessorOptions = new ChangeFeedProcessorOptions();
feedProcessorOptions.LeaseRenewInterval = TimeSpan.FromSeconds(15);
feedProcessorOptions.StartFromBeginning = true;
//ChangeFeedEventHost host = new ChangeFeedEventHost("ProductChangeObserverHost", feedCollectionInfo, leaseCollectionInfo, feedOptions, feedHostOptions);
var processor = await builder
.WithHostName("ProductChangeObserverHost-" + hostName)
.WithFeedCollection(feedCollectionInfo)
.WithLeaseCollection(leaseCollectionInfo)
//.WithObserver<ProductChangeObserver>()
.WithProcessorOptions(feedProcessorOptions)
.WithObserverFactory(new ProductFeedObserverFactory())
.BuildAsync();
await processor.StartAsync();
Console.WriteLine("Change Feed Processor started. Press <Enter> key to stop...");
Console.ReadLine();
await processor.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();
}
static async Task RunAsync()
{
DocumentCollectionInfo feedCollectionInfo = new DocumentCollectionInfo()
{
DatabaseName = "DemoDatabase",
CollectionName = "DemoCollection",
Uri = new Uri("endpoint"),
MasterKey = ""
};
DocumentCollectionInfo leaseCollectionInfo = new DocumentCollectionInfo()
{
DatabaseName = "DemoDatabase",
CollectionName = "leases",
Uri = new Uri("endpoint"),
MasterKey = "key"
};
ChangeFeedProcessorOptions feedProcessorOptions = new ChangeFeedProcessorOptions();
// ie. customizing lease renewal interval to 15 seconds
// can customize LeaseRenewInterval, LeaseAcquireInterval, LeaseExpirationInterval, FeedPollDelay
feedProcessorOptions.LeaseRenewInterval = TimeSpan.FromSeconds(15);
feedProcessorOptions.StartFromBeginning = true;
//feedProcessorOptions.StartTime = DateTime.Now - TimeSpan.FromDays(1);
var builder = new ChangeFeedProcessorBuilder();
var processor = await builder
.WithHostName("SampleHost")
.WithFeedCollection(feedCollectionInfo)
.WithLeaseCollection(leaseCollectionInfo)
.WithObserver <SampleObserver>() // add as many sample observers (aka consumers as needed) via WithObserver<>
.WithProcessorOptions(feedProcessorOptions)
.BuildAsync();
await processor.StartAsync();
Console.WriteLine("Change Feed Processor started. Press <Enter> key to stop...");
Console.ReadLine();
await processor.StopAsync();
}
// Boilerplate from the ChangeFeedProcessor library.
public async Task RunChangeFeedHostAsync()
{
string hostName = "ChatHost" + DateTime.Now.Ticks.ToString();
// The collection to be observed is registered here.
DocumentCollectionInfo documentCollectionInfo = new DocumentCollectionInfo
{
Uri = new Uri(Keys.CosmosDBUri),
MasterKey = Keys.CosmosDBKey,
DatabaseName = GroupSelectionPageViewModel.SelectedDBName,
CollectionName = "Messages"
};
// The lease is a collection where the changes are temporary stored.
DocumentCollectionInfo leaseCollectionInfo = new DocumentCollectionInfo
{
Uri = new Uri(Keys.CosmosDBUri),
MasterKey = Keys.CosmosDBKey,
DatabaseName = GroupSelectionPageViewModel.SelectedDBName,
CollectionName = "Lease"
};
DocumentFeedObserverFactory docObserverFactory = new DocumentFeedObserverFactory();
ChangeFeedProcessorOptions feedProcessorOptions = new ChangeFeedProcessorOptions();
feedProcessorOptions.LeaseRenewInterval = TimeSpan.FromSeconds(15);
feedProcessorOptions.StartFromBeginning = true;
ChangeFeedProcessorBuilder builder = new ChangeFeedProcessorBuilder();
builder
.WithHostName(hostName)
.WithFeedCollection(documentCollectionInfo)
.WithLeaseCollection(leaseCollectionInfo)
.WithProcessorOptions(feedProcessorOptions)
.WithObserverFactory(new DocumentFeedObserverFactory());
// A new ChangeFeedProcessor is built and then run asynchronously.
var result = await builder.BuildAsync();
await result.StartAsync();
}
static async Task RunAsync()
{
DocumentCollectionInfo feedCollectionInfo = new DocumentCollectionInfo()
{
DatabaseName = "pinball-leaderboard",
CollectionName = "leaderboard",
Uri = new Uri("https://sqlcomos2019.documents.azure.com:443/"),
MasterKey = "0oyBJST0UzbkkU2hIYMmePZAEjBoTPTW7EEqUCL7WPhxNN2DNai8TwpKfnQrE6mlN4R93PGe08fGIoK2FtAYfw=="
};
DocumentCollectionInfo leaseCollectionInfo = new DocumentCollectionInfo()
{
DatabaseName = "pinball-leaderboard",
CollectionName = "leasesScore",
Uri = new Uri("https://sqlcomos2019.documents.azure.com:443/"),
MasterKey = "0oyBJST0UzbkkU2hIYMmePZAEjBoTPTW7EEqUCL7WPhxNN2DNai8TwpKfnQrE6mlN4R93PGe08fGIoK2FtAYfw=="
};
ChangeFeedProcessorOptions feedProcessorOptions = new ChangeFeedProcessorOptions();
feedProcessorOptions.LeaseRenewInterval = TimeSpan.FromSeconds(5);
feedProcessorOptions.StartFromBeginning = false;
var builder = new ChangeFeedProcessorBuilder();
var processor = await builder
.WithHostName("LeaderboardHost")
.WithFeedCollection(feedCollectionInfo)
.WithLeaseCollection(leaseCollectionInfo)
.WithObserver <ChangeFeedObserver>()
.WithProcessorOptions(feedProcessorOptions)
.BuildAsync();
await processor.StartAsync();
Console.WriteLine("Change Feed Processor started. Press <Enter> key to stop...");
Console.ReadLine();
await processor.StopAsync();
}
static async Task RunAsync()
{
DocumentCollectionInfo feedCollectionInfo = new DocumentCollectionInfo()
{
DatabaseName = "movies",
CollectionName = "feedraw",
Uri = new Uri("< your Cosmos DB ep >"),
MasterKey = "< of course your access key >"
};
DocumentCollectionInfo leaseCollectionInfo = new DocumentCollectionInfo()
{
DatabaseName = "movies",
CollectionName = "feedleases",
Uri = new Uri("your Cosmos DB access key"),
MasterKey = "< your access key > "
};
ChangeFeedProcessorOptions feedProcessorOptions = new ChangeFeedProcessorOptions();
feedProcessorOptions.LeaseRenewInterval = TimeSpan.FromSeconds(5);
feedProcessorOptions.StartFromBeginning = false;
var builder = new ChangeFeedProcessorBuilder();
var processor = await builder
.WithHostName("ChangeFeedHost")
.WithFeedCollection(feedCollectionInfo)
.WithLeaseCollection(leaseCollectionInfo)
.WithObserver <ChangeFeedListener>()
.WithProcessorOptions(feedProcessorOptions)
.BuildAsync();
await processor.StartAsync();
Console.WriteLine("Change Feed Processor started. Press <Enter> key to stop...");
Console.ReadLine();
await processor.StopAsync();
}
static async Task RunAsync()
{
DocumentCollectionInfo feedCollectionInfo = new DocumentCollectionInfo()
{
DatabaseName = "pinball-leaderboard",
CollectionName = "leaderboard",
Uri = new Uri("<account-connection-string>"),
MasterKey = "<primary-key>"
};
DocumentCollectionInfo leaseCollectionInfo = new DocumentCollectionInfo()
{
DatabaseName = "pinball-leaderboard",
CollectionName = "leases",
Uri = new Uri("<account-connection-string>"),
MasterKey = "<primary-key>"
};
ChangeFeedProcessorOptions feedProcessorOptions = new ChangeFeedProcessorOptions();
feedProcessorOptions.LeaseRenewInterval = TimeSpan.FromSeconds(5);
feedProcessorOptions.StartFromBeginning = false;
var builder = new ChangeFeedProcessorBuilder();
var processor = await builder
.WithHostName("LeaderboardHost")
.WithFeedCollection(feedCollectionInfo)
.WithLeaseCollection(leaseCollectionInfo)
.WithObserver <ChangeFeedObserver>()
.WithProcessorOptions(feedProcessorOptions)
.BuildAsync();
await processor.StartAsync();
Console.WriteLine("Change Feed Processor started. Press <Enter> key to stop...");
Console.ReadLine();
await processor.StopAsync();
}
// Boilerplate from the ChangeFeedProcessor library.
public async Task RunChangeFeedHostAsync()
{
string hostName = "FlashHost" + DateTime.Now.Ticks.ToString();
DocumentCollectionInfo documentCollectionInfo = new DocumentCollectionInfo
{
Uri = new Uri(Keys.CosmosDBUri),
MasterKey = Keys.CosmosDBKey,
DatabaseName = GroupSelectionPageViewModel.SelectedDBName,
CollectionName = "Flashcards"
};
DocumentCollectionInfo leaseCollectionInfo = new DocumentCollectionInfo
{
Uri = new Uri(Keys.CosmosDBUri),
MasterKey = Keys.CosmosDBKey,
DatabaseName = GroupSelectionPageViewModel.SelectedDBName,
CollectionName = "FlashLease"
};
DocumentFeedObserverFactory docObserverFactory = new DocumentFeedObserverFactory();
ChangeFeedProcessorOptions feedProcessorOptions = new ChangeFeedProcessorOptions();
feedProcessorOptions.LeaseRenewInterval = TimeSpan.FromSeconds(15);
feedProcessorOptions.StartFromBeginning = true;
ChangeFeedProcessorBuilder builder = new ChangeFeedProcessorBuilder();
builder
.WithHostName(hostName)
.WithFeedCollection(documentCollectionInfo)
.WithLeaseCollection(leaseCollectionInfo)
.WithProcessorOptions(feedProcessorOptions)
.WithObserverFactory(new DocumentFeedObserverFactory());
var result = await builder.BuildAsync();
await result.StartAsync();
}
public IChangeFeedProcessor CreateChangeFeedProcessor(string monitoredUri, string monitoredSecretKey, string monitoredDbName, string monitoredCollectionName, string leaseUri, string leaseSecretKey, string leaseDbName, string leaseCollectionName)
{
string hostName = Guid.NewGuid().ToString();
DocumentCollectionInfo documentCollectionLocation = new DocumentCollectionInfo
{
Uri = new Uri(monitoredUri),
MasterKey = monitoredSecretKey,
DatabaseName = monitoredDbName,
CollectionName = monitoredCollectionName
};
DocumentCollectionInfo leaseCollectionLocation = new DocumentCollectionInfo
{
Uri = new Uri(leaseUri),
MasterKey = leaseSecretKey,
DatabaseName = leaseDbName,
CollectionName = leaseCollectionName
};
DocumentClient monitorClient = new DocumentClient(
serviceEndpoint: new Uri(monitoredUri),
authKeyOrResourceToken: monitoredSecretKey,
handler: new HttpClientHandler
{
ServerCertificateCustomValidationCallback = (a, b, c, d) => true
},
connectionPolicy: new ConnectionPolicy
{
EnableEndpointDiscovery = false,
ConnectionMode = ConnectionMode.Gateway,
ConnectionProtocol = Protocol.Tcp
});
DocumentClient leaseClient = new DocumentClient(
serviceEndpoint: new Uri(leaseUri),
authKeyOrResourceToken: leaseSecretKey,
handler: new HttpClientHandler
{
ServerCertificateCustomValidationCallback = (a, b, c, d) => true
},
connectionPolicy: new ConnectionPolicy
{
EnableEndpointDiscovery = false,
ConnectionMode = ConnectionMode.Gateway,
ConnectionProtocol = Protocol.Tcp
});
var tracelogProvider = new TraceLogProvider();
using (tracelogProvider.OpenNestedContext(hostName))
{
LogProvider.SetCurrentLogProvider(tracelogProvider);
}
var builder = new ChangeFeedProcessorBuilder();
var processor = builder
.WithHostName(hostName)
.WithFeedCollection(documentCollectionLocation)
.WithLeaseCollection(leaseCollectionLocation)
.WithFeedDocumentClient(monitorClient)
.WithLeaseDocumentClient(leaseClient)
.WithObserverFactory(new CosmosDbChangeFeedObserverFactory <Customer>())
.WithProcessorOptions(new ChangeFeedProcessorOptions
{
LeasePrefix = $"NCache--",
StartTime = DateTime.Now
})
.BuildAsync()
.Result;
processor.StartAsync();
return(processor);
}