[CONF] Apache Camel > Cafe Example

[confluence]

Cafe Example Page edited by willem jiang Cafe Example This example shows how to use Camel to implement a Cafe use case. First It uses the splitter to dispatch the order, then sends the orders to barista by checking if the coffee is hot or cold. When the coffee is ready, we use a aggregate to gather the drinks for waiter to deliver. Here is the route builder code for it. public void configure() { from("direct:cafe") .split().method("orderSplitter").to("direct:drink"); from("direct:drink").recipientList().method("drinkRouter"); from("seda:coldDrinks?concurrentConsumers=2").to("bean: ?method=prepareColdDrink").to("direct:deliveries"); from("seda:hotDrinks?concurrentConsumers=3").to("bean:barista?method=prepareHotDrink").to("direct:deliveries"); from("direct:deliveries") .aggregate(new CafeAggregationStrategy()).method("waiter", "checkOrder") .batchTimeout(5 * 1000L) .to("bean:waiter?method=prepareDelivery") .to("bean:waiter?method=deliverCafes"); } Running You will need to compile this example first: mvn compile The example should run if you type: mvn exec:java To stop the server hit ctrl + c Sample output When the client is running it outputs all requests and responses on the screen. Camel thread 4: seda://coldDrinks?concurrentConsumers=2 prepared cold drink #1 for order #2: iced 2 shot ESPRESSO Camel thread 3: seda://hotDrinks?concurrentConsumers=3 prepared hot drink #1 for order #2: hot 2 shot MOCHA Camel thread 1: seda://hotDrinks?concurrentConsumers=3 prepared hot drink #2 for order #2: hot 4 shot CAPPUCCINO Camel thread 2: seda://hotDrinks?concurrentConsumers=3 prepared hot drink #3 for order #2: hot 4 shot LATTE ----------------------- Order #2 Iced ESPRESSO, 2 shots. Hot MOCHA, 2 shots. Hot CAPPUCCINO, 4 shots. Hot LATTE, 4 shots. ----------------------- See Also Examples ToAsync HTTP Async Example Change Notification Preferences View Online | View Change | Add Comment