public SubscriptionCache(ChannelGraph graph, IEnumerable<ITransport> transports)
{
if (!transports.Any())
{
throw new Exception(
"No transports are registered. FubuMVC's ServiceBus cannot function without at least one ITransport");
}
_graph = graph;
_transports = transports;
_volatileNodes = new Cache<Uri, ChannelNode>(uri =>
{
var transport = _transports.FirstOrDefault(x => x.Protocol == uri.Scheme);
if (transport == null)
{
throw new UnknownChannelException(uri);
}
var node = new ChannelNode { Uri = uri, Key = uri.ToString() };
node.Channel = transport.BuildDestinationChannel(node.Uri);
return node;
});
}
public void setting_address_has_to_be_a_Uri()
{
var node = new ChannelNode();
Exception<ArgumentOutOfRangeException>.ShouldBeThrownBy(() => {
node.SettingAddress = ReflectionHelper.GetAccessor<FakeThing>(x => x.Name);
});
}
public Receiver(IHandlerPipeline pipeline, ChannelGraph graph, ChannelNode node)
{
_pipeline = pipeline;
_graph = graph;
_node = node;
_address = node.Channel.Address;
}
public EnvelopeSent(EnvelopeToken envelope, ChannelNode node)
{
Envelope = envelope;
Uri = node.Uri;
Key = node.Key;
}
public void setting_default_content_type_will_clear_the_serializer()
{
var node = new ChannelNode();
node.DefaultSerializer = new BinarySerializer();
node.DefaultContentType = "application/xml";
node.DefaultContentType.ShouldBe("application/xml");
node.DefaultSerializer.ShouldBeNull();
}
public void publishes_is_false_if_no_rules_pass()
{
var node = new ChannelNode();
for (int i = 0; i < 5; i++)
{
node.Rules.Add(MockRepository.GenerateMock<IRoutingRule>());
}
node.Publishes(typeof(NewUser)).ShouldBeFalse();
}
/*
* Changes
* 1.) Do serialization within sendToChannel
* 2.) do the cloning *outside* of sendToChannel
* 3.) Make envelopeserializer smart enough not to replace the contents if it needs to
*/
private void sendToChannel(Envelope envelope, ChannelNode node)
{
var replyUri = _router.ReplyUriFor(node);
var headers = node.Send(envelope, _serializer, replyUri: replyUri);
_logger.InfoMessage(() => new EnvelopeSent(new EnvelopeToken
{
Headers = headers,
Message = envelope.Message
}, node));
}
private void addRow(TableRowTag row, ChannelNode channel)
{
addDescriptionCell(row, channel);
addSchedulers(row, channel);
addRoutingRules(row, channel);
addSerialization(row, channel);
addModifiers(row, channel);
}
private void addModifiers(TableRowTag row, ChannelNode channel)
{
var cell = row.Cell().AddClass("modifiers");
if (channel.Modifiers.Any())
{
cell.Add("ul", ul => { channel.Modifiers.Each(x => ul.Add("li").Text(x.ToString())); });
}
else
{
cell.Text("None");
}
}
public void publishes_is_true_if_any_rule_passes()
{
var node = new ChannelNode();
for (int i = 0; i < 5; i++)
{
node.Rules.Add(MockRepository.GenerateMock<IRoutingRule>());
}
node.Rules[2].Stub(x => x.Matches(typeof (NewUser))).Return(true);
node.Publishes(typeof(NewUser)).ShouldBeTrue();
}
private static void addRoutingRules(TableRowTag row, ChannelNode channel)
{
var cell = row.Cell().AddClass("routing-rules");
if (channel.Rules.Any())
{
cell.Add("ul", ul => { channel.Rules.Each(x => ul.Add("li").Text(x.Describe())); });
}
else
{
cell.Text("None");
}
}
private static void addSchedulers(TableRowTag row, ChannelNode channel)
{
var cell = row.Cell();
if (channel.Incoming)
{
var description = Description.For(channel.Scheduler);
cell.Append(new DescriptionBodyTag(description));
}
else
{
cell.Text("None");
}
}
public void doesnt_throw_if_receive_only_fails_intermittently()
{
var channel = new FakeChannel { StopAfter = 20 };
var node = new ChannelNode
{
Channel = channel,
Scheduler = new FakeScheduler()
};
var logger = new RecordingLogger();
var receiver = new RecordingReceiver();
node.StartReceiving(receiver, logger);
channel.HitCount.ShouldBe(20);
}
public void builds_a_schedule_by_threads()
{
var settings = new ThreadSettings
{
Count = 7
};
var channelNode = new ChannelNode();
new ByThreadScheduleMaker<ThreadSettings>(x => x.Count)
.As<ISettingsAware>()
.ApplySettings(settings, channelNode);
channelNode.Scheduler.ShouldBeOfType<ThreadScheduler>()
.ThreadCount.ShouldBe(7);
}
private void addSerialization(TableRowTag row, ChannelNode channel)
{
var cell = row.Cell().AddClass("serialization");
if (channel.DefaultContentType.IsNotEmpty())
{
cell.Text(channel.DefaultContentType);
}
else if (channel.DefaultSerializer != null)
{
cell.Text(channel.DefaultSerializer.ToString());
}
else
{
cell.Text("None");
}
}
public void Serialize(Envelope envelope, ChannelNode node)
{
if (envelope.Message == null) throw new InvalidOperationException("No message on this envelope to serialize");
var serializer = SelectSerializer(envelope, node);
if (envelope.ContentType.IsEmpty())
{
envelope.ContentType = serializer.ContentType;
}
using (var stream = new MemoryStream())
{
serializer.Serialize(envelope.Message, stream);
stream.Position = 0;
envelope.Data = stream.ReadAllBytes();
}
}
public IMessageSerializer SelectSerializer(Envelope envelope, ChannelNode node)
{
if (envelope.ContentType.IsNotEmpty())
{
return findSerializer(envelope.ContentType);
}
if (node.DefaultSerializer != null)
{
return node.DefaultSerializer;
}
if (node.DefaultContentType.IsNotEmpty())
{
return findSerializer(node.DefaultContentType);
}
return findSerializer(_graph.DefaultContentType);
}
public void continuous_receive_errors()
{
var logger = new RecordingLogger();
var receiver = new RecordingReceiver();
var channel = MockRepository.GenerateMock<IChannel>();
channel.Expect(x => x.Receive(receiver))
.Throw(new Exception("I failed"));
var node = new ChannelNode
{
Channel = channel,
Scheduler = new FakeScheduler()
};
Exception<ReceiveFailureException>.ShouldBeThrownBy(() =>
{
node.StartReceiving(receiver, logger);
});
}
public Uri ReplyUriFor(ChannelNode destination)
{
return _graph.ReplyChannelFor(destination.Protocol());
}
void ISettingsAware.ApplySettings(object settings, ChannelNode node)
{
int threadCount = (int)ReflectionHelper.GetAccessor(_expression).GetValue(settings);
node.Scheduler = buildScheduler(threadCount);
}
protected override IChannel buildChannel(ChannelNode channelNode)
{
var uri = new LightningUri(channelNode.Uri);
return channelNode.Mode == ChannelMode.DeliveryGuaranteed
? LightningQueuesChannel.BuildPersistentChannel(uri, _queues, _settings.MapSize, _settings.MaxDatabases, channelNode.Incoming)
: LightningQueuesChannel.BuildNoPersistenceChannel(uri, _queues, channelNode.Incoming);
}
public void no_publishing_rules_is_always_false()
{
var node = new ChannelNode();
node.Publishes(typeof(NewUser)).ShouldBeFalse();
}
public void Serialize(Envelope envelope, ChannelNode node)
{
throw new EnvelopeDeserializationException("Error");
}
public void default_channel_mode_is_delivery_guaranteed()
{
var node = new ChannelNode();
node.Mode.ShouldBe(ChannelMode.DeliveryGuaranteed);
}
public void SetUp()
{
theEnvelope = new Envelope()
{
Data = new byte[]{1,2,3,4},
};
theSerializer = MockRepository.GenerateMock<IEnvelopeSerializer>();
theEnvelope.Headers["A"] = "1";
theEnvelope.Headers["B"] = "2";
theEnvelope.Headers["C"] = "3";
theEnvelope.CorrelationId = Guid.NewGuid().ToString();
theChannel = new RecordingChannel();
theNode = new ChannelNode
{
Channel = theChannel,
Key = "Foo",
Uri = "foo://bar".ToUri()
};
theNode.Modifiers.Add(new HeaderSetter("D", "4"));
theNode.Modifiers.Add(new HeaderSetter("E", "5"));
theNode.Send(theEnvelope, theSerializer);
}
public void ReceiveFailed_error_handling()
{
var node = new ChannelNode
{
Key = "TestKey",
Channel = new FakeChannel { StopAfter = 2 },
Scheduler = new FakeScheduler()
};
var logger = new RecordingLogger();
node.StartReceiving(new RecordingReceiver(), logger);
logger.ErrorMessages.ShouldHaveCount(1);
logger.InfoMessages.ShouldHaveCount(1);
var message = logger.InfoMessages.Cast<ReceiveFailed>().Single();
message.ChannelKey.ShouldBe(node.Key);
message.Exception.ShouldNotBeNull();
}
private static void addDescriptionCell(TableRowTag row, ChannelNode channel)
{
var cell = row.Cell();
cell.Add("h5").Text(channel.Key);
cell.Add("div/i").Text(channel.Uri.ToString());
if (channel.DefaultContentType != null)
cell.Add("div").Text("Default Content Type: " + channel.DefaultContentType);
}
protected override IChannel buildChannel(ChannelNode channelNode)
{
return LightningQueuesChannel.Build(new LightningUri(channelNode.Uri), _queues, _delayedMessages, channelNode.Incoming);
}
protected abstract IChannel buildChannel(ChannelNode channelNode);
private void SetupTransport(string uri)
{
graph = new ChannelGraph();
node = graph.ChannelFor<ChannelSettings>(x => x.Upstream);
node.Uri = new Uri(uri);
node.Incoming = true;
var delayedCache = new DelayedMessageCache<MessageId>();
queues = new PersistentQueues(new RecordingLogger(), delayedCache, new LightningQueueSettings());
queues.ClearAll();
transport = new LightningQueuesTransport(queues, new LightningQueueSettings(), delayedCache);
transport.OpenChannels(graph);
}
