2. • What is the ServiceBus
• Relay Service
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3. © All Rights Reserved

4. • IPv4 is running out
– Dynamic DNS
– Network Address Translation (NAT)
• Load Balancers
• Routers
• Hardware Firewall
• Software Firewall
* From MSDN Magazine
• Web Services simply don’t work
• What about calling back to the client?
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5. • People are doing it
– Google Talk
– Skype
• Enters ServiceBus
– Now, you can do it too
• It’s not all about connectivity
– Scalability
– Availability
– Security
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6. • Connect everything, anywhere
– Kiosk
– Mobile
• Leverage existing SOA investments with cloud
solutions
• Not all apps move to the cloud
• Names and organizes distributed endpoints
• Provides simple registry
• .NET and WCF integration – skills move forward
– Open and accessible too
• REST, SOAP, RSS, ATOM
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7. * From MSDN
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8. © All Rights Reserved

9. • Intermediary Pass-Through Service (Push)
– Overcome connectivity challenges
• Uses outbound connections only
– Defaults to TCP with fallback to HTTP
• Relays client calls to service
• Hosted in the cloud
– Scalability
– Security
* From MSDN
– Management Portal
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10. • Service connects and authenticates against the relay
– Relay determines how to communicate with the service
• Client authenticates and calls the service
– Relay forwards the message to the service
* From MSDN Magazine
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11. • Enables
– Connectivity
– Tunneling
– Eventing
– Push
• Supports
– WS-* specifications
– Message and transport security
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12. • Service Bus Address
– [scheme]:[ns].servicebus.windows.net/{uri}
– sb://MyCompany.servicebus.windows.net/CalcService
• Service Bus Registry
– ATOM-based feed of online services
– http://MyCompany.servicebus.windows.net/
• Need to enable publishing to registry
– Add ServiceRegsitrySettings endpoint behavior
configured with public discovery type
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13. WCF Binding
ServiceBus Binding
BasicHttpBinding
BasicHttpRelayBinding
WebHttpBinding
WebHttpRelayBinding
WSHttpBinding
WSHttpRelayBinding
WS2007HttpBinding
WS2007HttpRelayBinding
WSHttpContextBinding
WSHttpRelayContextBinding
WS2007FederationHttpBinding
WS2007FederationHttpRelayBinding
NetTcpBinding
NetTcpRelayBinding
NetTcpContextBinding
NetTcpRelayContextBinding
N/A
NetOnewayRelayBinding
N/A
NetEventRelayBinding
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14. • Connection Modes
– Direct
– Relayed
– Hybrid
• Requires additional setup of message security
• Promotes to the most direct connection possible
– Intranet / Machine
• Supports duplex
• Best performance and throughput
• .NET parties only
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15. * From MSDN Magazine
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16. • One-way Relay Binding
–
–
–
–
Messages are sent to a buffer
No guarantee of order and delivery
Disconnected scenarios (not a queue though!)
One service can read off the queue (Unicast)
• Event Relay Binding
– Specialization of the one-way relay binding
– Multiple services can read off the same queue
• Notifications, Traces, Synchronization, …
– Fan-out via single-sender-multi-receiver multicast
– Fan-in via multi-sender-single-receiver unicast
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17. * From MSDN Magazine
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18. * From MSDN Magazine
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19. • Create the namespace and obtain the access key
– Management Portal
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20. • Get the Windows Azure ServiceBus NuGet package
var sh = new ServiceHost(typeof(ProblemSolver));
sh.AddServiceEndpoint(
typeof (IProblemSolver), new NetTcpBinding(),
"net.tcp://localhost:9358/solver");
sh.AddServiceEndpoint(
typeof(IProblemSolver), new NetTcpRelayBinding(),
ServiceBusEnvironment.CreateServiceUri("sb", "**namespace**", "solver"))
.Behaviors.Add(new TransportClientEndpointBehavior { TokenProvider =
TokenProvider.CreateSharedSecretTokenProvider( "owner", "**key**")});
sh.Open();
Console.WriteLine("Press ENTER to close");
Console.ReadLine();
sh.Close();
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21. • Get the Windows Azure ServiceBus NuGet package
var cf = new ChannelFactory<IProblemSolverChannel>(
new NetTcpRelayBinding(),
new EndpointAddress(ServiceBusEnvironment.CreateServiceUri(
"sb", "**namespace**", "solver")));
cf.Endpoint.Behaviors.Add(
new TransportClientEndpointBehavior { TokenProvider =
TokenProvider.CreateSharedSecretTokenProvider("owner","**key**") });
using (var ch = cf.CreateChannel())
{
Console.WriteLine(ch.AddNumbers(4, 5));
}
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22. © All Rights Reserved