Added Cafe demo to spring-integration-samples

spring-integration-samples/src/main/java/org/springframework/integration/samples/cafe/Barista.java

@@ -0,0 +1,64 @@
+/*
+ * Copyright 2002-2007 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.integration.samples.cafe;
+
+import java.util.concurrent.atomic.AtomicInteger;
+
+import org.springframework.stereotype.Component;
+
+/**
+ * @author Mark Fisher
+ */
+@Component
+public class Barista {
+
+	private long hotDrinkDelay = 1000;
+
+	private long coldDrinkDelay = 700; 
+
+	private AtomicInteger hotDrinkCounter = new AtomicInteger();
+	
+	private AtomicInteger coldDrinkCounter = new AtomicInteger();
+
+
+	public void setHotDrinkDelay(long hotDrinkDelay) {
+		this.hotDrinkDelay = hotDrinkDelay;
+	}
+
+	public void setColdDrinkDelay(long coldDrinkDelay) {
+		this.coldDrinkDelay = coldDrinkDelay;
+	}
+
+	public void prepareHotDrink(Drink drink) {
+		try {
+			Thread.sleep(this.hotDrinkDelay);
+		} catch (InterruptedException e) {
+			Thread.currentThread().interrupt();
+		}
+		System.out.println("prepared hot drink #" + hotDrinkCounter.incrementAndGet() + ": " + drink);
+	}
+
+	public void prepareColdDrink(Drink drink) {
+		try {
+			Thread.sleep(this.coldDrinkDelay);
+		} catch (InterruptedException e) {
+			Thread.currentThread().interrupt();
+		}
+		System.out.println("prepared cold drink #" + coldDrinkCounter.incrementAndGet() + ": " + drink);
+	}
+
+}

spring-integration-samples/src/main/java/org/springframework/integration/samples/cafe/Cafe.java

@@ -0,0 +1,44 @@
+/*
+ * Copyright 2002-2007 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.integration.samples.cafe;
+
+import org.springframework.integration.channel.MessageChannel;
+import org.springframework.integration.message.GenericMessage;
+
+/**
+ * The entry point for {@link CafeDemo}. When the '<code>placeOrder</code>'
+ * method is invoked, it passes the {@link DrinkOrder} as the payload of a
+ * {@link org.springframework.integration.message.Message} to the
+ * 'orderChannel'. The channel reference is configured in the "cafe" bean
+ * definition within 'cafeDemo.xml'.
+ * 
+ * @author Mark Fisher
+ */
+public class Cafe {
+
+	private MessageChannel orderChannel;
+
+
+	public void setOrderChannel(MessageChannel orderChannel) {
+		this.orderChannel = orderChannel;
+	}
+
+	public void placeOrder(DrinkOrder order) {
+		this.orderChannel.send(new GenericMessage<DrinkOrder>(order));
+	}
+
+}

spring-integration-samples/src/main/java/org/springframework/integration/samples/cafe/CafeDemo.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright 2002-2007 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.integration.samples.cafe;
+
+import org.springframework.context.support.ClassPathXmlApplicationContext;
+
+/**
+ * Provides the 'main' method for running the Cafe Demo application. When an
+ * order is placed, the Cafe will send that order to the "orders" channel.
+ * The relevant components are defined within the configuration file
+ * ("cafeDemo.xml") or configured with annotations (such as the
+ * OrderSplitter, DrinkRouter, and Barista classes).
+ * 
+ * @author Mark Fisher
+ */
+public class CafeDemo {
+
+	public static void main(String[] args) {
+		ClassPathXmlApplicationContext context = new ClassPathXmlApplicationContext("cafeDemo.xml", CafeDemo.class);
+		context.start();
+		Cafe cafe = (Cafe) context.getBean("cafe");
+		DrinkOrder order = new DrinkOrder();
+		Drink hotDoubleLatte = new Drink(DrinkType.LATTE, 2, false);
+		Drink icedTripleMocha = new Drink(DrinkType.MOCHA, 3, true);
+		order.addDrink(hotDoubleLatte);
+		order.addDrink(icedTripleMocha);
+		for (int i = 0; i < 10; i++) {
+			cafe.placeOrder(order);
+		}
+	}
+
+}

spring-integration-samples/src/main/java/org/springframework/integration/samples/cafe/Drink.java

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2002-2007 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.integration.samples.cafe;
+
+/**
+ * @author Mark Fisher
+ */
+public class Drink {
+
+	private DrinkType type;
+
+	private int shots = 1;
+
+	private boolean iced = false;
+
+
+	public Drink(DrinkType type, int shots, boolean iced) {
+		this.type = type;
+		this.shots = shots;
+		this.iced = iced;
+	}
+
+
+	public boolean isIced() {
+		return this.iced;
+	}
+
+	public String toString() {
+		return ((this.iced) ? "iced " : "hot " ) + 
+				this.shots + " shot " + this.type;
+	}
+
+}

spring-integration-samples/src/main/java/org/springframework/integration/samples/cafe/DrinkOrder.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2002-2007 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.integration.samples.cafe;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * @author Mark Fisher
+ */
+public class DrinkOrder {
+
+	private List<Drink> drinks = new ArrayList<Drink>();
+
+	public void addDrink(Drink drink) {
+		this.drinks.add(drink);
+	}
+
+	public List<Drink> getDrinks() {
+		return this.drinks;
+	}
+
+}

spring-integration-samples/src/main/java/org/springframework/integration/samples/cafe/DrinkRouter.java

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2002-2007 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.integration.samples.cafe;
+
+import org.springframework.integration.annotation.MessageEndpoint;
+import org.springframework.integration.annotation.Router;
+
+/**
+ * @author Mark Fisher
+ */
+@MessageEndpoint(input="drinks")
+public class DrinkRouter {
+
+	@Router
+	public String resolveDrinkChannel(Drink drink) {
+		if (drink.isIced()) {
+			return "coldDrinks";
+		}
+		else {
+			return "hotDrinks";
+		}
+	}
+
+}

spring-integration-samples/src/main/java/org/springframework/integration/samples/cafe/DrinkType.java

@@ -14,17 +14,16 @@
  * limitations under the License.
  */
 
-package org.springframework.integration.router;
-
-import java.util.Collection;
+package org.springframework.integration.samples.cafe;
 
 /**
- * Base interface for splitters.
- * 
  * @author Mark Fisher
  */
-public interface Splitter<T> {
+public enum DrinkType {
 
-	Collection<T> split(T t);
+	ESPRESSO,
+	LATTE,
+	CAPPUCCINO,
+	MOCHA
 
 }

spring-integration-samples/src/main/java/org/springframework/integration/samples/cafe/OrderSplitter.java

@@ -0,0 +1,35 @@
+/*
+ * Copyright 2002-2007 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.integration.samples.cafe;
+
+import java.util.List;
+
+import org.springframework.integration.annotation.MessageEndpoint;
+import org.springframework.integration.annotation.Splitter;
+
+/**
+ * @author Mark Fisher
+ */
+@MessageEndpoint(input="orders")
+public class OrderSplitter {
+
+	@Splitter(channel="drinks")
+	public List<Drink> split(DrinkOrder order) {
+		return order.getDrinks();
+	}
+
+}

spring-integration-samples/src/main/java/org/springframework/integration/samples/cafe/cafeDemo.xml

@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans:beans xmlns="http://www.springframework.org/schema/integration"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xmlns:beans="http://www.springframework.org/schema/beans"
+	xmlns:context="http://www.springframework.org/schema/context"
+	xsi:schemaLocation="http://www.springframework.org/schema/beans
+			http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
+			http://www.springframework.org/schema/integration
+			http://www.springframework.org/schema/integration/spring-integration-1.0.xsd
+			http://www.springframework.org/schema/context
+			http://www.springframework.org/schema/context/spring-context-2.5.xsd">
+
+	<message-bus/>
+	<annotation-driven/>
+
+	<context:component-scan base-package="org.springframework.integration.samples.cafe"/>
+
+	<channel id="orders"/>
+	<channel id="drinks"/>
+	<channel id="coldDrinks"/>
+	<channel id="hotDrinks"/>
+
+	<endpoint input-channel="coldDrinks" handler-ref="barista" handler-method="prepareColdDrink"/>
+	<endpoint input-channel="hotDrinks" handler-ref="barista" handler-method="prepareHotDrink"/>
+
+	<beans:bean id="cafe" class="org.springframework.integration.samples.cafe.Cafe">
+		<beans:property name="orderChannel" ref="orders"/>
+	</beans:bean>
+
+</beans:beans>