enterprise integration patterns - java forum...

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Enterprise Integration PatternsBest Practices for Application Integration

Java Forum Stuttgart 2013

© 2013 innoQ Deutschland GmbH

Enterprise Applications



ERP



ERP

CRM



ERP

CRM

SCM



ERP

CRM

SCM

Ihre selbstentwickelte

Anwendung!


Integration



Wozu diese Pattern?


Eine Integrationsaufgabe erkennen,

wenn sie direkt vor einem steht?


LEICHT!

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Die passenden Hilfsmittel verwenden?


TEUER?

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Eine einfache und stabile

Lösung entwickeln?


UNBEZAHLBAR!

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Enterprise Integration Pattern


Enterprise Integration Pattern

Rezepte gegen

Integrationsschmerzen!


Pattern für EAI


Pattern für EAI Design Patterns (Gamma et al), 1994



Proven solutions for common problems




Enterprise Integration Patterns (Hohpe & Woolf), 2003




Enterprise Integration Patterns (Hohpe & Woolf), 2003

Swiss-army knife for asynchronous messaging



Integration Styles


Integration Styles

File Transfer

http://www.eaipatterns.com

/FileTransferIntegration.html

http://www.eaipatterns.com/FileTransferIntegration.html



Integration Styles

Shared Database


/SharedDataBaseIntegration.html




Integration Styles

Remote Procedure Invocation


/EncapsulatedSynchronousIntegration.html

http://www.eaipatterns.com/EncapsulatedSynchronousIntegration.html

http://www.eaipatterns.com/EncapsulatedSynchronousIntegration.html


Integration Styles

Messaging


/Messaging.html

http://www.eaipatterns.com/Messaging.html



“Various technologies have been around (…). We all believe that asynchronous

messaging carries the greatest promise.”- Martin Fowler (Enterprise Integration Patterns, 2003)


MESSAGING?

http://bit.ly/PtrhWy




Gründe für async. Messaging



message-based communication -> decoupling




integrate heterogenous platforms/ languages





variable timing & throttling






reliable communication






reliable communication

disconnected operation


Common Wording


Message Channelhttp://www.eaipatterns.com

/MessageChannel.html




Message ChannelInMemory oder Persistent


/MessageChannel.html




Inbound & Outbound Adapterhttp://www.eaipatterns.com

/ChannelAdapter.html




Inbound & Outbound AdapterApplikationsspezi!sche Interfaces


/ChannelAdapter.html




Pipes and Filtershttp://www.enterpriseintegrationpatterns.com/PipesAndFilters.html




Pipes and FiltersVerarbeitung in kleine Schritte au"eilen

http://www.enterpriseintegrationpatterns.com/PipesAndFilters.html




Message Routerhttp://www.enterpriseintegrationpatterns.com/MessageRouter.html




Message RouterWeiterleitung anhand von Bedingungen

http://www.enterpriseintegrationpatterns.com/MessageRouter.html




Transformerwww.enterpriseintegrationpatterns.com/MessageTransformationIntro.html




Wire Taphttp://www.eaipatterns.com

/WireTap.html




Wire TapSimple !xed Recipient List


/WireTap.html




Control Bushttp://www.eaipatterns.com

/ControlBus.html




Control BusManage integration systems & components


/ControlBus.html




Nachrichtentypen


Nachrichtentypen

Allgemein


Nachrichtentypen

Allgemein

Command Message


Nachrichtentypen

Allgemein

Command Message

Document Message


Nachrichtentypen

Allgemein

Command Message

Document Message

Event Message


EAI Frameworks

Apache Camel Spring Integration


Code Beispiel:GatewaySampleTest

https://github.com/aheusingfeld/eai-patterns-talk/blob/master/src/test/java/com/github/aheusingfeld/talks/eai/GatewaySampleTest.java

https://github.com/aheusingfeld/eai-patterns-talk/blob/master/src/test/java/com/github/aheusingfeld/talks/eai/GatewaySampleTest.java


Immer ein EAI-Framework verwenden?


Immer ein EAI-Framework verwenden?

It depends!


Praxis-Beispiel

Eine einfache Au"ragsverwaltung


2 Monate später


2 Jahre später


Code Beispiel „CSV“-Import

https://github.com/aheusingfeld/eai-patterns-talk/blob/master/src/main/resources/spring/csv2db-route-context.xml

https://github.com/aheusingfeld/eai-patterns-talk/blob/master/src/main/resources/spring/csv2db-route-context.xml



Vielen Dank! Alexander Heusingfeld, @[email protected]://www.innoq.com


http://twitter.com/goldstift

http://twitter.com/goldstift

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