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INTSAMPLES-60 - Add JMS-backed Cafe Application Sample
* Add idea folder to .gitignore * Add an embedded ActiveMQ * Add activemq data to ignore list * Use JMS-backed channels * Add the sample description to README.md
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@@ -13,3 +13,5 @@ derby.log | |
| .idea | ||
| activemq-data | ||
| .settings/ | ||
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| Cafe Sample Application - AMQP Implementation | ||
| ======================= | ||
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| See the parent-level README.md for more details, but the flow of the implementation should follow this diagram: | ||
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| Barista | ||
| hotDrinks ____________________ | ||
| |==========| -->| | | ||
| orders drinks / | prepareHotDrink() | | ||
| Place Order ->Cafe->|======|->OrderSplitter->|======|->DrinkRouter | | | ||
| \ coldDrinks | prepareColdDrink() | | ||
| |==========| -->| | | ||
| |____________________| | ||
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| Legend: |====| - channels | ||
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| ## Instructions for running the CafeDemo AMQP sample | ||
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| ### Distributed components | ||
| To run this alternative configuration of the sample, be sure to have a RabbitMQ broker started on localhost:5672 configured with the default guest|guest client credentials on the / vHost, then execute the following test classes in order: | ||
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| 1. **cafeDemoAppBaristaColdAmqp** - starts the Cold Drink Barista | ||
| 2. **cafeDemoAppBaristaHotAmqp** - starts the Hot Drink Barista | ||
| 3. **cafeDemoAppAmqp** - starts the Cafe Storefront (Places 100 orders on the orders queue) | ||
| 4. **cafeDemoAppOperationsAmqp** - starts the Cafe Operations (OrderSplitter, DrinkRouter, PreparedDrinkAggregator) | ||
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| **Note**: All AMQP exchanges, queues, and bindings needed for this sample are defined within the different xml config files that support the above test classes. |
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| <?xml version="1.0" encoding="UTF-8"?> | ||
| <project xmlns="http://maven.apache.org/POM/4.0.0" | ||
| xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | ||
| xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> | ||
| <modelVersion>4.0.0</modelVersion> | ||
| <parent> | ||
| <artifactId>cafe</artifactId> | ||
| <groupId>org.springframework.integration.samples</groupId> | ||
| <version>2.1.0.BUILD-SNAPSHOT</version> | ||
| </parent> | ||
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| <artifactId>cafe-amqp</artifactId> | ||
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| <name>Cafe - With AMQP Message Broker</name> | ||
| <description> | ||
| This module implements the cafe sample using spring-integration components backed | ||
| by an AMQP message broker for message persistence and component distribution. This | ||
| sample uses RabbitMQ broker, but any AMQP message broker can be used. For an example | ||
| using JMS, see the JMS implemenation of the cafe sample. | ||
| </description> | ||
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| <dependencies> | ||
| <dependency> | ||
| <groupId>${project.parent.groupId}</groupId> | ||
| <artifactId>cafe-si</artifactId> | ||
| <version>${project.parent.version}</version> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.springframework.integration</groupId> | ||
| <artifactId>spring-integration-amqp</artifactId> | ||
| <version>${spring.integration.version}</version> | ||
| </dependency> | ||
| </dependencies> | ||
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| </project> |
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| Cafe Sample Application - JMS Implementation | ||
| ======================= | ||
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| See the parent-level README.md for more details, but the flow of the implementation should follow this diagram: | ||
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| Barista | ||
| hotDrinks ____________________ | ||
| |==========| -->| | | ||
| orders drinks / | prepareHotDrink() | | ||
| Place Order ->Cafe->|======|->OrderSplitter->|======|->DrinkRouter | | | ||
| \ coldDrinks | prepareColdDrink() | | ||
| |==========| -->| | | ||
| |____________________| | ||
| Legend: |====| - channels | ||
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| ## Instructions for running the CafeDemo JMS sample | ||
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| ### Distributed components | ||
| To run this configuration, start an instance of ActiveMQ with the openwire/TCP connector available on the default port (61616). There are no credentials of which to be aware. Please execute the following classes in order: | ||
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| 1. **CafeDemoAppBaristaColdActiveMQ - starts the ColdDrink Barista | ||
| 2. **CafeDemoAppBaristaHotActiveMQ - starts the HotDrink Barista | ||
| 3. **CafeDemoAppOperationsActiveMQ - starts the Cafe Operations (order splitter, drink router, etc). | ||
| 4. **CafeDemoAppAcitveMQ - places the orders | ||
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| ### JMS backed components | ||
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| See **CafeDemoActiveMQBackedChannels** for an example of how to use the JMS-backed channels. No need to start an external ActiveMQ because one is started internally |
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| <?xml version="1.0" encoding="UTF-8"?> | ||
| <project xmlns="http://maven.apache.org/POM/4.0.0" | ||
| xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | ||
| xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> | ||
| <modelVersion>4.0.0</modelVersion> | ||
| <parent> | ||
| <groupId>org.springframework.integration.samples</groupId> | ||
| <artifactId>cafe</artifactId> | ||
| <version>2.1.0.BUILD-SNAPSHOT</version> | ||
| </parent> | ||
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| <artifactId>cafe-jms</artifactId> | ||
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| <name>Cafe - With JMS Message Broker</name> | ||
| <description> | ||
| This module implements the cafe sample using spring-integration components backed | ||
| by a JMS broker for persistent messaging as well as component distribution. This | ||
| sample uses ActiveMQ as the JMS broker, but any JMS-compliant broker can be | ||
| used. For an example using AMQP, see the AMQP implementation of the cafe sample. | ||
| </description> | ||
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| <properties> | ||
| <activemq.version>5.4.3</activemq.version> | ||
| </properties> | ||
| <dependencies> | ||
| <dependency> | ||
| <groupId>org.apache.activemq</groupId> | ||
| <artifactId>activemq-all</artifactId> | ||
| <version>${activemq.version}</version> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.apache.xbean</groupId> | ||
| <artifactId>xbean-spring</artifactId> | ||
| <version>3.9</version> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>org.springframework.integration</groupId> | ||
| <artifactId>spring-integration-jms</artifactId> | ||
| <version>${spring.integration.version}</version> | ||
| </dependency> | ||
| <dependency> | ||
| <groupId>${project.parent.groupId}</groupId> | ||
| <artifactId>cafe-si</artifactId> | ||
| <version>${project.parent.version}</version> | ||
| </dependency> | ||
| </dependencies> | ||
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| </project> |
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...java/org/springframework/integration/samples/cafe/xml/CafeDemoActiveMQBackedChannels.java
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| package org.springframework.integration.samples.cafe.xml; | ||
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| import org.springframework.context.support.AbstractApplicationContext; | ||
| import org.springframework.context.support.ClassPathXmlApplicationContext; | ||
| import org.springframework.integration.samples.cafe.Cafe; | ||
| import org.springframework.integration.samples.cafe.DrinkType; | ||
| import org.springframework.integration.samples.cafe.Order; | ||
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| import java.io.IOException; | ||
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| /** | ||
| * Main class for running the Cafe sample with JMS-backed (ActiveMQ) channels. Once the application | ||
| * is running, simply press <return> or any other key to end the application. To fully experience the | ||
| * benefits of this solution, try halting/exiting the program in the middle of running it, comment out the | ||
| * call to place new orders (the order() function call) and watch that the processing still continues | ||
| * where it left off when you halted it. This is because the messages are persisted in the ActiveMQ queues | ||
| * | ||
| * @author ceposta | ||
| */ | ||
| public class CafeDemoActiveMQBackedChannels { | ||
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| /** | ||
| * place some orders | ||
| * @param context spring context | ||
| * @param count the number of standard orders | ||
| */ | ||
| public static void order(AbstractApplicationContext context, int count){ | ||
| Cafe cafe = (Cafe) context.getBean("cafe"); | ||
| for (int i = 1; i <= count; i++) { | ||
| Order order = new Order(i); | ||
| order.addItem(DrinkType.LATTE, 2, false); | ||
| order.addItem(DrinkType.MOCHA, 3, true); | ||
| cafe.placeOrder(order); | ||
| } | ||
| } | ||
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| public static void main(String[] args) throws InterruptedException, IOException { | ||
| AbstractApplicationContext context = new ClassPathXmlApplicationContext("/META-INF/spring/integration/activemq/cafeDemo-amq-config.xml", | ||
| "/META-INF/spring/integration/activemq/cafeDemo-amq-jms-backed.xml"); | ||
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| // comment this out to run the sample without placing any new orders on the queue | ||
| order(context, 25); | ||
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| System.in.read(); | ||
| context.close(); | ||
| } | ||
| } |
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...s/src/main/java/org/springframework/integration/samples/cafe/xml/CafeDemoAppActiveMQ.java
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| package org.springframework.integration.samples.cafe.xml; | ||
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| import org.springframework.context.support.AbstractApplicationContext; | ||
| import org.springframework.context.support.ClassPathXmlApplicationContext; | ||
| import org.springframework.integration.samples.cafe.Cafe; | ||
| import org.springframework.integration.samples.cafe.DrinkType; | ||
| import org.springframework.integration.samples.cafe.Order; | ||
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| import java.io.IOException; | ||
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| /** | ||
| * Main class for sending orders that will be handled in separate, distributed | ||
| * processes. See the README.md file for more information on the order in which | ||
| * to start the processes | ||
| * | ||
| * @author ceposta | ||
| */ | ||
| public class CafeDemoAppActiveMQ { | ||
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| /** | ||
| * place some orders | ||
| * @param context spring context | ||
| * @param count the number of standard orders | ||
| */ | ||
| public static void order(AbstractApplicationContext context, int count){ | ||
| Cafe cafe = (Cafe) context.getBean("cafe"); | ||
| for (int i = 1; i <= count; i++) { | ||
| Order order = new Order(i); | ||
| order.addItem(DrinkType.LATTE, 2, false); | ||
| order.addItem(DrinkType.MOCHA, 3, true); | ||
| cafe.placeOrder(order); | ||
| } | ||
| } | ||
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| public static void main(String[] args) throws InterruptedException, IOException { | ||
| AbstractApplicationContext context = new ClassPathXmlApplicationContext("/META-INF/spring/integration/activemq/cafeDemo-amq-config.xml", | ||
| "/META-INF/spring/integration/activemq/cafeDemo-amq-xml.xml"); | ||
| order(context, 25); | ||
| context.close(); | ||
| } | ||
| } |
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