static void SendAutoDistributeDemo()
{
// demonstrate distributing messages evenly across queues
// each call to Send chooses the next queue to send the message to
IBus bus = new BusBuilder()
.WithLogging(new FileLogger())
.InstallMsmqIfNeeded()
.DefineErrorQueue("MiniBus.errors")
.DefineWriteQueue("MiniBus.messages1")
.DefineWriteQueue("MiniBus.messages2")
.DefineWriteQueue("MiniBus.messages3")
.CreateLocalQueuesAutomatically()
.AutoDistributeOnSend()
.JsonSerialization()
.CreateBus();
var p = new Person {
Name = "Bob", Age = 20
};
bus.Send(p); // MiniBus.messages1
bus.Send(p); // MiniBus.messages2
bus.Send(p); // MiniBus.messages3
bus.Send(p); // MiniBus.messages1
Console.WriteLine("\nPress a key to exit");
Console.ReadLine();
bus.Dispose();
}
static void SendDemo()
{
// demonstrate sending message to defined write queue
IBus bus = new BusBuilder()
.WithLogging(new FileLogger())
.InstallMsmqIfNeeded()
.DefineErrorQueue("MiniBus.errors")
.DefineWriteQueue("MiniBus.messages1")
.CreateLocalQueuesAutomatically()
.EnlistInAmbientTransactions()
.JsonSerialization()
.CreateBus();
// transaction scope isn't required unless modifying another transactional resource at the same time
using (var scope = new TransactionScope())
{
for (int i = 1; i <= 10; i++)
{
var p = new Person {
Name = "Bob", Age = i
};
// insert/update a database to see atomic commit
bus.Send(p);
}
scope.Complete();
}
Console.WriteLine("\nPress a key to exit");
Console.ReadLine();
bus.Dispose();
}
static void ReceiveDemo()
{
// demonstrate receiving - Receive processes whatever messages happen to be on the queue at the time of the call
Console.WriteLine("\nPress a key to read message/s");
Console.ReadLine();
IBus bus = new BusBuilder()
.WithLogging(new FileLogger())
.InstallMsmqIfNeeded()
.DefineErrorQueue("MiniBus.errors")
.DefineReadQueue("MiniBus.messages1")
.CreateLocalQueuesAutomatically()
.EnlistInAmbientTransactions()
.JsonSerialization()
.NumberOfRetries(3)
.CreateBus();
// pass true to have a message fail and moved to the error queue
bus.RegisterHandler(new PersonHandler(false));
bus.Receive <Person>();
Console.WriteLine("\nPress a key to exit");
Console.ReadLine();
bus.Dispose();
}
static void ReturnErrorMessagesDemo()
{
// demonstrate moving messages from error queue to read queue
IBus bus = new BusBuilder()
.WithLogging(new FileLogger())
.DefineErrorQueue("MiniBus.errors")
.DefineReadQueue("MiniBus.messages1")
.CreateLocalQueuesAutomatically()
.CreateBus();
bus.ReturnErrorMessages();
Console.WriteLine("\nPress a key to exit");
Console.ReadLine();
bus.Dispose();
}
static void ReceiveDemoAsync()
{
// demonstrate receiving asynchrnously - ReceiveAsync processes messages as and when they arrive.
// Open another instance to send messages while the other receives.
IBus bus = new BusBuilder()
.WithLogging(new ConsoleLogger())
.InstallMsmqIfNeeded()
.DefineErrorQueue("MiniBus.errors")
.DefineReadQueue("MiniBus.messages1")
.CreateLocalQueuesAutomatically()
.EnlistInAmbientTransactions()
.JsonSerialization()
.NumberOfRetries(3)
.CreateBus();
bus.RegisterHandler(new PersonHandler(false));
bus.ReceiveAsync <Person>();
Console.WriteLine("\nPress a key to exit");
Console.ReadLine();
bus.Dispose();
}
public async Task TheStartupTimeShouldBeAcceptable()
{
const int numMessageTypes = 50;
var assemblyBuilder = EmitMessageContractsAndHandlersAssembly(numMessageTypes);
var logger = TestHarnessLoggerFactory.Create(Guid.NewGuid(), GetType().FullName);
var typeProvider = new AssemblyScanningTypeProvider(assemblyBuilder);
var firstBus = new BusBuilder().Configure()
.WithNames("MyTestSuite", Environment.MachineName)
.WithDefaults(typeProvider)
.WithTransport(new WindowsServiceBusTransportConfiguration()
.WithConnectionString(DefaultSettingsReader.Get <AzureServiceBusConnectionString>()))
.WithLogger(logger)
.WithDebugOptions(
dc =>
dc.RemoveAllExistingNamespaceElementsOnStartup(
"I understand this will delete EVERYTHING in my namespace. I promise to only use this for test suites."))
.Build();
try
{
try
{
await firstBus.Start(MessagePumpTypes.All);
}
catch (AggregateException exc)
{
throw exc.Flatten();
}
}
finally
{
firstBus.Dispose();
}
var subsequentBus = new BusBuilder().Configure()
.WithNames("MyTestSuite", Environment.MachineName)
.WithTransport(new WindowsServiceBusTransportConfiguration()
.WithConnectionString(DefaultSettingsReader.Get <AzureServiceBusConnectionString>()))
.WithDefaults(typeProvider)
.WithLogger(logger)
.Build();
try
{
try
{
await subsequentBus.Start(MessagePumpTypes.All);
}
catch (AggregateException exc)
{
throw exc.Flatten();
}
}
finally
{
subsequentBus.Dispose();
}
}
public async Task TheStartupTimeShouldBeAcceptable()
{
const int numMessageTypes = 100;
var assemblyBuilder = EmitMessageContractsAndHandlersAssembly(numMessageTypes);
var logger = TestHarnessLoggerFactory.Create();
var typeProvider = new AssemblyScanningTypeProvider(new[] { assemblyBuilder });
var firstBus = new BusBuilder().Configure()
.WithNames("MyTestSuite", Environment.MachineName)
.WithConnectionString(CommonResources.ServiceBusConnectionString)
.WithTypesFrom(typeProvider)
.WithDefaultTimeout(TimeSpan.FromSeconds(10))
.WithServerConnectionCount(100)
.WithLogger(logger)
.Build();
try
{
using (new AssertingStopwatch("First bus startup", TimeSpan.FromMinutes(1)))
{
{
try
{
await firstBus.Start(MessagePumpTypes.All);
WriteBlankLines();
}
catch (AggregateException exc)
{
throw exc.Flatten();
}
}
}
}
finally
{
WriteBlankLines();
firstBus.Dispose();
}
WriteBlankLines();
var subsequentBus = new BusBuilder().Configure()
.WithNames("MyTestSuite", Environment.MachineName)
.WithConnectionString(CommonResources.ServiceBusConnectionString)
.WithTypesFrom(typeProvider)
.WithDefaultTimeout(TimeSpan.FromSeconds(10))
.WithLogger(logger)
.Build();
try
{
using (new AssertingStopwatch("Subsequent bus startup", TimeSpan.FromSeconds(20)))
{
try
{
await subsequentBus.Start(MessagePumpTypes.All);
WriteBlankLines();
}
catch (AggregateException exc)
{
throw exc.Flatten();
}
}
}
finally
{
WriteBlankLines();
subsequentBus.Dispose();
}
}