/// <summary>
/// Initializes a new instance of the <see cref="TopicSender"/> class,
/// automatically creating the given topic if it does not exist.
/// </summary>
protected TopicSender(MessagingSettings settings, string topic, RetryStrategy retryStrategy)
{
this.settings = settings;
this.topic = topic;
this.tokenProvider = TokenProvider.CreateSharedSecretTokenProvider(settings.TokenIssuer, settings.TokenAccessKey);
this.serviceUri = ServiceBusEnvironment.CreateServiceUri(settings.ServiceUriScheme, settings.ServiceNamespace, settings.ServicePath);
try
{
new NamespaceManager(this.serviceUri, this.tokenProvider)
.CreateTopic(
new TopicDescription(topic)
{
RequiresDuplicateDetection = true,
DuplicateDetectionHistoryTimeWindow = TimeSpan.FromMinutes(30)
});
}
catch (MessagingEntityAlreadyExistsException)
{ }
// TODO: This could be injected.
this.retryPolicy = new RetryPolicy<ServiceBusTransientErrorDetectionStrategy>(retryStrategy);
this.retryPolicy.Retrying +=
(s, e) =>
{
Trace.TraceError("An error occurred in attempt number {1} to send a message: {0}", e.LastException.Message, e.CurrentRetryCount);
};
var factory = MessagingFactory.Create(this.serviceUri, this.tokenProvider);
this.topicClient = factory.CreateTopicClient(this.topic);
}
public RelayServiceHostController(Func<ServiceHost> createServiceHost)
{
this.createServiceHost = createServiceHost;
// Use exponential backoff in case of failures. Retry forever
retryStrategy = new ExponentialBackoff(100000, TimeSpan.FromSeconds(1), TimeSpan.FromSeconds(60),
TimeSpan.FromSeconds(1));
}
/// <summary>
/// Initializes a new instance of the <see cref="TopicSender"/> class,
/// automatically creating the given topic if it does not exist.
/// </summary>
protected TopicSender(ServiceBusSettings settings, string topic, RetryStrategy retryStrategy)
{
this.settings = settings;
this.topic = topic;
this.tokenProvider = TokenProvider.CreateSharedSecretTokenProvider(settings.TokenIssuer, settings.TokenAccessKey);
this.serviceUri = ServiceBusEnvironment.CreateServiceUri(settings.ServiceUriScheme, settings.ServiceNamespace, settings.ServicePath);
// TODO: This could be injected.
this.retryPolicy = new RetryPolicy<ServiceBusTransientErrorDetectionStrategy>(retryStrategy);
this.retryPolicy.Retrying +=
(s, e) =>
{
var handler = this.Retrying;
if (handler != null)
{
handler(this, EventArgs.Empty);
}
Trace.TraceWarning("An error occurred in attempt number {1} to send a message: {0}", e.LastException.Message, e.CurrentRetryCount);
};
var factory = MessagingFactory.Create(this.serviceUri, this.tokenProvider);
this.topicClient = factory.CreateTopicClient(this.topic);
}
/// <summary>
/// Initializes a new instance of the RetryPolicy class with the specified number of retry attempts and parameters defining the progressive delay between retries.
/// </summary>
/// <param name="errorDetectionStrategy">The <see cref="ITransientErrorDetectionStrategy"/> that is responsible for detecting transient conditions.</param>
/// <param name="retryStrategy">The retry strategy to use for this retry policy.</param>
public RetryPolicy(ITransientErrorDetectionStrategy errorDetectionStrategy, RetryStrategy retryStrategy)
{
Guard.ArgumentNotNull(errorDetectionStrategy, "errorDetectionStrategy");
Guard.ArgumentNotNull(retryStrategy, "retryPolicy");
this.ErrorDetectionStrategy = errorDetectionStrategy;
if (errorDetectionStrategy == null)
{
throw new InvalidOperationException("The error detection strategy type must implement the ITransientErrorDetectionStrategy interface.");
}
this.RetryStrategy = retryStrategy;
}
/// <summary>
/// Initializes a new instance of the <see cref="SubscriptionReceiver"/> class,
/// automatically creating the topic and subscription if they don't exist.
/// </summary>
protected SubscriptionReceiver(ServiceBusSettings settings, string topic, string subscription, bool processInParallel, RetryStrategy backgroundRetryStrategy)
{
this.settings = settings;
this.topic = topic;
this.subscription = subscription;
this.processInParallel = processInParallel;
this.tokenProvider = TokenProvider.CreateSharedSecretTokenProvider(settings.TokenIssuer, settings.TokenAccessKey);
this.serviceUri = ServiceBusEnvironment.CreateServiceUri(settings.ServiceUriScheme, settings.ServiceNamespace, settings.ServicePath);
var messagingFactory = MessagingFactory.Create(this.serviceUri, tokenProvider);
this.client = messagingFactory.CreateSubscriptionClient(topic, subscription);
if (this.processInParallel)
{
this.client.PrefetchCount = 18;
}
else
{
this.client.PrefetchCount = 14;
}
this.dynamicThrottling =
new DynamicThrottling(
maxDegreeOfParallelism: 100,
minDegreeOfParallelism: 50,
penaltyAmount: 3,
workFailedPenaltyAmount: 5,
workCompletedParallelismGain: 1,
intervalForRestoringDegreeOfParallelism: 8000);
this.receiveRetryPolicy = new RetryPolicy<ServiceBusTransientErrorDetectionStrategy>(backgroundRetryStrategy);
this.receiveRetryPolicy.Retrying += (s, e) =>
{
this.dynamicThrottling.Penalize();
Trace.TraceWarning(
"An error occurred in attempt number {1} to receive a message from subscription {2}: {0}",
e.LastException.Message,
e.CurrentRetryCount,
this.subscription);
};
var namespaceManager = new NamespaceManager(this.serviceUri, this.tokenProvider);
if (!namespaceManager.SubscriptionExists(topic, subscription))
{
namespaceManager.CreateSubscription(topic, subscription);
}
}
protected override void Arrange()
{
this.defaultStrategy = new FixedInterval("default", 5, TimeSpan.FromMilliseconds(10));
this.otherStrategy = new Incremental("other", 5, TimeSpan.FromMilliseconds(10), TimeSpan.FromMilliseconds(10));
this.defaultSqlConnectionStrategy = new FixedInterval("defaultSqlConnection", 5, TimeSpan.FromMilliseconds(10));
this.defaultSqlCommandStrategy = new FixedInterval("defaultSqlCommand", 5, TimeSpan.FromMilliseconds(10));
this.defaultAzureServiceBusStrategy = new FixedInterval("defaultAzureServiceBusStrategy", 5, TimeSpan.FromMilliseconds(10));
this.defaultAzureCachingStrategy = new FixedInterval("defaultAzureCachingStrategy", 5, TimeSpan.FromMilliseconds(10));
this.defaultAzureStorageStrategy = new FixedInterval("defaultAzureStorageStrategy", 5, TimeSpan.FromMilliseconds(10));
this.managerWithAllDefaults = new RetryManagerImpl(
new[]
{
this.defaultStrategy,
this.defaultSqlConnectionStrategy,
this.defaultSqlCommandStrategy,
this.otherStrategy,
this.defaultAzureServiceBusStrategy,
this.defaultAzureCachingStrategy, this.defaultAzureStorageStrategy
},
"default",
"defaultSqlConnection",
"defaultSqlCommand",
"defaultAzureServiceBusStrategy",
"defaultAzureCachingStrategy",
"defaultAzureStorageStrategy");
this.managerWithOnlyDefault = new RetryManagerImpl(
new[]
{
this.defaultStrategy,
this.defaultSqlConnectionStrategy,
this.defaultSqlCommandStrategy,
this.otherStrategy,
this.defaultAzureServiceBusStrategy,
this.defaultAzureCachingStrategy, this.defaultAzureStorageStrategy
},
"default",
null,
null,
null,
null,
null);
}
/// <summary>
/// Initializes a new instance of the <see cref="SubscriptionReceiver"/> class,
/// automatically creating the topic and subscription if they don't exist.
/// </summary>
protected SubscriptionReceiver(ServiceBusSettings settings, string topic, string subscription, RetryStrategy backgroundRetryStrategy)
{
this.settings = settings;
this.topic = topic;
this.subscription = subscription;
this.tokenProvider = TokenProvider.CreateSharedSecretTokenProvider(settings.TokenIssuer, settings.TokenAccessKey);
this.serviceUri = ServiceBusEnvironment.CreateServiceUri(settings.ServiceUriScheme, settings.ServiceNamespace, settings.ServicePath);
var messagingFactory = MessagingFactory.Create(this.serviceUri, tokenProvider);
this.client = messagingFactory.CreateSubscriptionClient(topic, subscription);
this.receiveRetryPolicy = new RetryPolicy<ServiceBusTransientErrorDetectionStrategy>(backgroundRetryStrategy);
this.receiveRetryPolicy.Retrying +=
(s, e) =>
{
Trace.TraceError("An error occurred in attempt number {1} to receive a message: {0}", e.LastException.Message, e.CurrentRetryCount);
};
}
/// <summary>
/// Initializes a new instance of the <see cref="TopicSender"/> class,
/// automatically creating the given topic if it does not exist.
/// </summary>
protected TopicSender(ServiceBusSettings settings, string topic, RetryStrategy retryStrategy)
{
this.settings = settings;
this.topic = topic;
// TODO: This could be injected.
this.retryPolicy = new RetryPolicy<ServiceBusTransientErrorDetectionStrategy>(retryStrategy);
this.retryPolicy.Retrying +=
(s, e) =>
{
var handler = this.Retrying;
if (handler != null)
{
handler(this, EventArgs.Empty);
}
Trace.TraceWarning("An error occurred in attempt number {1} to send a message: {0}", e.LastException.Message, e.CurrentRetryCount);
};
var factory = settings.GetMessagingFactory();
this.topicClient = factory.CreateTopicClient(this.topic);
}
protected override void Act()
{
this.retryStrategy = this.managerWithAllDefaults.GetRetryStrategy("other");
}
protected override void Act()
{
this.retryStrategy = new FixedInterval("name", 5, TimeSpan.FromSeconds(5));
this.shouldRetry = this.retryStrategy.GetShouldRetry();
}
public TestableTopicSender(ServiceBusSettings settings, string topic, RetryStrategy retryStrategy)
: base(settings, topic, retryStrategy)
{
this.DoBeginSendMessageDelegate = base.DoBeginSendMessage;
this.DoEndSendMessageDelegate = base.DoEndSendMessage;
}
protected override void Act()
{
this.retryStrategy = new Incremental();
this.shouldRetry = this.retryStrategy.GetShouldRetry();
}
protected override void Act()
{
this.retryStrategy = new FixedInterval(5);
this.shouldRetry = this.retryStrategy.GetShouldRetry();
}
protected override void Act()
{
this.retryStrategy = new Incremental("name", 5, TimeSpan.FromSeconds(5), TimeSpan.FromSeconds(2));
this.shouldRetry = this.retryStrategy.GetShouldRetry();
}
/// <summary>
/// Initializes a new instance of the <see cref="SubscriptionReceiver"/> class,
/// automatically creating the topic and subscription if they don't exist.
/// </summary>
protected SubscriptionReceiver(ServiceBusSettings settings, string topic, string subscription, bool processInParallel, ISubscriptionReceiverInstrumentation instrumentation, RetryStrategy backgroundRetryStrategy)
{
this.settings = settings;
this.topic = topic;
this.subscription = subscription;
this.processInParallel = processInParallel;
this.instrumentation = instrumentation;
var messagingFactory = settings.GetMessagingFactory();
this.client = messagingFactory.CreateSubscriptionClient(topic, subscription);
if (this.processInParallel)
{
this.client.PrefetchCount = 18;
}
else
{
this.client.PrefetchCount = 14;
}
this.dynamicThrottling =
new DynamicThrottling(
maxDegreeOfParallelism: 100,
minDegreeOfParallelism: 50,
penaltyAmount: 3,
workFailedPenaltyAmount: 5,
workCompletedParallelismGain: 1,
intervalForRestoringDegreeOfParallelism: 8000);
this.receiveRetryPolicy = new RetryPolicy<ServiceBusTransientErrorDetectionStrategy>(backgroundRetryStrategy);
this.receiveRetryPolicy.Retrying += (s, e) =>
{
this.dynamicThrottling.Penalize();
Trace.TraceWarning(
"An error occurred in attempt number {1} to receive a message from subscription {2}: {0}",
e.LastException.Message,
e.CurrentRetryCount,
this.subscription);
};
}
public TestableSubscriptionReceiver(ServiceBusSettings settings, string topic, string subscription, RetryStrategy background)
: base(settings, topic, subscription, background)
{
this.DoReceiveMessageDelegate = base.DoReceiveMessage;
}
protected override void Act()
{
this.retryStrategy = new ExponentialBackoff("name", 5, TimeSpan.FromSeconds(5), TimeSpan.FromMinutes(5), TimeSpan.FromSeconds(10));
this.shouldRetry = this.retryStrategy.GetShouldRetry();
}
/// <summary>
/// Initializes a new instance of the RetryPolicy class with the specified number of retry attempts and parameters defining the progressive delay between retries.
/// </summary>
/// <param name="retryStrategy">The retry strategy to use for this retry policy.</param>
public RetryPolicy(RetryStrategy retryStrategy)
: base(new T(), retryStrategy)
{
}
protected override void Act()
{
this.retryStrategy = new ExponentialBackoff();
this.shouldRetry = this.retryStrategy.GetShouldRetry();
}
public TestableSubscriptionReceiver(MessagingSettings settings, string topic, string subscription, RetryStrategy background, RetryStrategy blocking)
: base(settings, topic, subscription, background, blocking)
{
this.DoReceiveMessageDelegate = base.DoReceiveMessage;
}
