Enterprise Integration Patterns

Enterprise Integration patterns Johan Aludden Twitter: johanaludden Mail: me@johanaludden.com Blog: johanaludden.com/weblog

Integration styles 2

Integration styles • File transfer 2

Integration styles • File transfer • Shared Database 2

Integration styles • File transfer • Shared Database • Remote Procedure Invocation 2

Integration styles • File transfer • Shared Database • Remote Procedure Invocation • Messaging 2

Messaging 3

Messaging • Channels 3

Messaging • Channels • Messages 3

Producer Consumer 4

Producer Consumer • Many producers - Many Consumers 4

Producer Consumer • Many producers - Many Consumers • Message read once 4

Producer Consumer • Many producers - Many Consumers • Message read once • Load balancing 4

Producer Consumer • Many producers - Many Consumers • Message read once • Load balancing • Parallelization 4

Publish subscribe 5

Publish subscribe • Many Producers - Many Consumers 5

Publish subscribe • Many Producers - Many Consumers • Message read once per subscriber 5

Publish subscribe • Many Producers - Many Consumers • Message read once per subscriber • Broad casting 5

Publish subscribe • Many Producers - Many Consumers • Message read once per subscriber • Broad casting • Different processing 5

Channel Types • Producer Consumer • Publish Subscribe Common Properties • Asynchronous • One Way Communication 6

Document Message 7

Document Message • Send information 7

Document Message • Send information • Receiver decides what to do 7

Document Message • Send information • Receiver decides what to do • Single unit of data 7

Command Message 8

Command Message • Send a command 8

Command Message • Send a command • Sender tells what to do 8

Command Message • Send a command • Sender tells what to do • Single Unit of Work 8

Message Types • Document message • Command message 9

Common Patterns 10

You want to send a request and get a reply 11

Sender Receiver 11

Sender Request Receiver 11

Sender Receiver 11

Sender Receiver Reply 11

Sender Receiver 11

Request ID: 2 Sender Receiver 11

Sender Receiver 11

Request ID: 3 Sender Receiver 11

Sender Receiver 11

Sender Receiver Reply ID: 3 11

Sender Receiver 11

Sender Receiver Reply ID: 2 11

Sender Receiver 11

Request - Reply Sender Receiver 11

One message with parts that can be handled individually 12

Sender Receiver 12

Message Sender Part 1 Receiver Part 2 12

Part 1 Sender Receiver Part 2 12

Splitter Part 1 Sender Receiver Part 2 12

Many Messages that needs to be handled together 13

Sender 13

Sender Receiver 13

Part 1 Sender Receiver 13

Part 1 Sender Receiver Part 2 13

Message Part 1 Sender Receiver Part 2 13

Aggregator Message Part 1 Sender Receiver Part 2 13

You have one entry point for messages but they need to be handled by different processes 14

Receiver 1 Sender Receiver 2 14

Router Receiver 1 Sender Receiver 2 14

The sender and the receiver does not speak the same language 15

Sender 15

Sender Receiver 15

Translator Sender Receiver 15

You have messages that have the same semantic but different formats 16

Sender 1 Receiver Sender 2 16

Sender 1 Translator Router Receiver Sender 2 Translator 16

Normalizer Sender 1 Translator Router Receiver Sender 2 Translator 16

You want to send the same message to many but to handle the responses together 17

Service 1 Sender 1 Aggregator Receiver Service 2 17

Scatter Gather Service 1 Sender 1 Aggregator Receiver Service 2 17

Pipes & Filter • Like Lego • Combine different patterns 18

Other Patterns • Resequencer • Routing slip 19

Links • Enterprise Integration Patterns site, http://www.eaipatterns.com/ • Book, http://www.amazon.com/ Enterprise-Integration-Patterns- Designing-Deploying/dp/0321200683 20

Questions? 21

Enterprise Integration Patterns

by Johan Aludden on Dec 10, 2009

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Enterprise Integration Patterns — Presentation Transcript