public void ClearAddressSubscriptions(Address address)
{
using (var connection = _connectionFactory.OpenConnection())
{
var subscriberAddress = address.ToString();
var table = Configuration.Instance.GetSetting<string>("subscriptionTable");
connection.Delete(new { SubscriberAddress = subscriberAddress }, table);
_memoryStore.ClearAddressSubscriptions(address);
_logger.DebugFormat("Cleaned up subscriptions of subscriber address '{0}'", subscriberAddress);
}
}
public void Subscribe(Address address, Type messageType)
{
using (var connection = _connectionFactory.OpenConnection())
{
var subscriberAddress = address.ToString();
var messageTypeName = messageType.AssemblyQualifiedName;
var table = Configuration.Instance.GetSetting<string>("subscriptionTable");
var count = connection.GetCount(new { SubscriberAddress = subscriberAddress, MessageType = messageTypeName }, table);
if (count == 0)
{
connection.Insert(new { UniqueId = Guid.NewGuid(), SubscriberAddress = subscriberAddress, MessageType = messageTypeName }, table);
_memoryStore.Subscribe(address, messageType);
_logger.DebugFormat("Subscriber '{0}' subscribes message '{1}'.", subscriberAddress, messageTypeName);
}
}
}
public void ClearAddressSubscriptions(Address address)
{
using (var session = _sessionFactory.OpenSession())
{
var criteria = session.CreateCriteria<Subscription>();
var subscriberAddress = address.ToString();
criteria.Add(Expression.Eq("SubscriberAddress", subscriberAddress));
var subscriptions = criteria.List<Subscription>();
foreach (var subscription in subscriptions)
{
session.Delete(subscription);
}
session.Flush();
_memoryStore.ClearAddressSubscriptions(address);
_logger.DebugFormat("Cleaned up subscriptions of subscriber address '{0}'", subscriberAddress);
}
}
public void Unsubscribe(Address address, Type messageType)
{
using (var connection = _connectionFactory.OpenConnection())
{
var subscriberAddress = address.ToString();
var messageTypeName = messageType.AssemblyQualifiedName;
var table = Configuration.Instance.GetSetting<string>("subscriptionTable");
connection.Delete(new { SubscriberAddress = subscriberAddress, MessageType = messageTypeName }, table);
_memoryStore.Unsubscribe(address, messageType);
_logger.DebugFormat("Subscriber '{0}' unsubscribes message '{1}'.", subscriberAddress, messageTypeName);
}
}
void IMessageTransport.SendMessage(Message message, Address targetAddress)
{
if (message == null)
{
throw new ArgumentNullException("message");
}
if (targetAddress == null)
{
throw new ArgumentNullException("targetAddress");
}
var queuePath = MsmqUtilities.GetFullPath(targetAddress);
try
{
using (var messageQueue = new MessageQueue(queuePath, QueueAccessMode.SendAndReceive))
{
var toSend = MsmqUtilities.Convert(message);
if (message.ReplyToAddress != null)
{
toSend.ResponseQueue = new MessageQueue(MsmqUtilities.GetReturnAddress(message.ReplyToAddress.ToString(), targetAddress.ToString()));
}
messageQueue.Send(toSend, MessageQueueTransactionType.Automatic);
message.Id = toSend.Id;
}
}
catch (MessageQueueException ex)
{
if (ex.MessageQueueErrorCode == MessageQueueErrorCode.QueueNotFound)
{
throw new EventSourcingException("消息队列未找到: [{0}]", targetAddress);
}
else
{
throw new EventSourcingException("发送消息到队列时遇到异常，队列地址：{0}，异常详情：{1}", targetAddress, ex);
}
}
catch (Exception ex)
{
throw new EventSourcingException("发送消息到队列时遇到异常，队列地址：{0}，异常详情：{1}", targetAddress, ex);
}
}
public void Subscribe(Address address, Type messageType)
{
using (var session = _sessionFactory.OpenSession())
{
var criteria = session.CreateCriteria<Subscription>();
var subscriberAddress = address.ToString();
var messageTypeName = messageType.AssemblyQualifiedName;
criteria.Add(Expression.Eq("SubscriberAddress", subscriberAddress));
criteria.Add(Expression.Eq("MessageType", messageTypeName));
var subscription = criteria.UniqueResult<Subscription>();
if (subscription == null)
{
subscription = new Subscription
{
UniqueId = Guid.NewGuid().ToString(),
SubscriberAddress = subscriberAddress,
MessageType = messageTypeName
};
session.Save(subscription);
session.Flush();
_memoryStore.Subscribe(address, messageType);
_logger.DebugFormat("Subscriber '{0}' subscribes message '{1}'.", subscriberAddress, messageTypeName);
}
}
}