The Cafe sample emulates a simple operation of the Coffee shop shop when modeled using EIP
It is inspired by one of the samples featured in Gregor Hohpe's Ramblings.
The domain is that of a Cafe, and the basic flow is depicted in the following diagram:
Barista
hotDrinks ____________________
|==========| -->| |
orders drinks / | prepareHotDrink() |
Place Order ->Cafe->|======|->OrderSplitter->|======|->DrinkRouter | |
\ coldDeinks | prepareColdDrink() |
|==========| -->| |
|____________________|
Legend: |====| - channels
The Order object may contain multiple OrderItems. Once the order is placed, a Splitter will break the
composite order message into a single message per drink. Each of these is then processed by a Router that
determines whether the drink is hot or cold (checking the OrderItem object's 'isIced' property). The Barista
prepares each drink, but hot and cold drink preparation are handled by two distinct methods: 'prepareHotDrink'
and 'prepareColdDrink'. The prepared drinks are then sent to the Waiter where they are aggregated into a
Delivery object.
Instructions for running the CafeDemo sample
-------------------------------------------------------------------------------
1. The example comes with two identical configurations. One is ANNOTATION-based anther is XML-based
2. To run this sample simply execute the CafeDemo* test classes
in the org.springframework.integration.samples.cafe.xml or
org.springframework.integration.samples.cafe.annotation package.
You shoudl see the output similar to this:
INFO : org.springframework.integration.samples.cafe.annotation.Barista - task-scheduler-1 prepared cold drink #1 for order #1: iced 3 shot MOCHA
INFO : org.springframework.integration.samples.cafe.annotation.Barista - task-scheduler-1 prepared cold drink #2 for order #2: iced 3 shot MOCHA
INFO : org.springframework.integration.samples.cafe.annotation.Barista - task-scheduler-1 prepared cold drink #3 for order #3: iced 3 shot MOCHA
INFO : org.springframework.integration.samples.cafe.annotation.Barista - task-scheduler-1 prepared cold drink #4 for order #4: iced 3 shot MOCHA
INFO : org.springframework.integration.samples.cafe.annotation.Barista - task-scheduler-2 prepared hot drink #1 for order #1: hot 2 shot LATTE
-----------------------
Order #1
Iced MOCHA, 3 shots.
Hot LATTE, 2 shots.
-----------------------
INFO : org.springframework.integration.samples.cafe.annotation.Barista - task-scheduler-1 prepared cold drink #5 for order #5: iced 3 shot MOCHA
INFO : org.springframework.integration.samples.cafe.annotation.Barista - task-scheduler-1 prepared cold drink #6 for order #6: iced 3 shot MOCHA
INFO : org.springframework.integration.samples.cafe.annotation.Barista - task-scheduler-1 prepared cold drink #7 for order #7: iced 3 shot MOCHA
INFO : org.springframework.integration.samples.cafe.annotation.Barista - task-scheduler-1 prepared cold drink #8 for order #8: iced 3 shot MOCHA
INFO : org.springframework.integration.samples.cafe.annotation.Barista - task-scheduler-1 prepared cold drink #9 for order #9: iced 3 shot MOCHA
INFO : org.springframework.integration.samples.cafe.annotation.Barista - task-scheduler-2 prepared hot drink #2 for order #2: hot 2 shot LATTE
-----------------------
Order #2
Iced MOCHA, 3 shots.
Hot LATTE, 2 shots.
-----------------------
Happy integration :-)
