public void LinkSubscriber(Session session, HostItemSubscriber subscriber,
ISubscriptionSettings subscriptionSettings)
{
var topicAttribute = (TopicAttribute)subscriber.HostItemAttribute;
// Determine if the host application has provided a specific subscription
// that should be used for the name specified in code.
string hostName = subscriber.HostAttribute.HostName;
var mapping = new SubscriptionMapping(hostName, topicAttribute.TopicName,
topicAttribute.SubscriptionName);
string subscriptionName = subscriptionSettings.GetMappedSubscription(mapping)
?? topicAttribute.SubscriptionName;
var logger = LoggerFactory.CreateLogger <TopicSubscriberLinker>();
logger.LogInformation(
"Subscribing to topic {topicName} as subscription {subscriptionName}",
topicAttribute.TopicName,
subscriptionName);
// Create a AMQP receiver link used to register handler method:
var receiverLink = new ReceiverLink(session, Guid.NewGuid().ToString(),
$"{topicAttribute.TopicName}/Subscriptions/{subscriptionName}");
ReceiveMessages(subscriber, receiverLink);
}
public void CannotSpecifyDuplicationMapping()
{
var settings = new SubscriptionSettingsBase();
var mapping = new SubscriptionMapping("NS1", "T1", "S1", "MS1");
Assert.Throws <InvalidOperationException>(
() => settings.AddMapping(mapping, mapping));
}
public void NonExistentMappingReturnsNull()
{
var settings = new SubscriptionSettingsBase();
var mapping = new SubscriptionMapping("NS1", "T1", "S1", "MS1");
var mappedName = settings.GetMappedSubscription(mapping);
mappedName.Should().BeNull();
}
public void CanAddSubscriptionMapping()
{
var settings = new SubscriptionSettingsBase();
var mapping = new SubscriptionMapping("NS1", "T1", "S1", "MS1");
settings.AddMapping(mapping);
var mappedName = settings.GetMappedSubscription(mapping);
mappedName.Should().NotBeNull();
mappedName.Should().Be("MS1");
}
/// <summary>
/// On startup send a "subscribe" message for the specified type
/// to the specified destination.
/// </summary>
public void Subscribe(Type type)
{
SubscriptionMapping.Add(type);
}
