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* Polishing for `stomp-chat` sample * Some dependencies upgrade
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...src/main/java/org/springframework/integration/samples/dsl/cafe/nonlambda/Application.java
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| /* | ||
| * Copyright 2014 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. | ||
| */ | ||
|
|
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| package org.springframework.integration.samples.dsl.cafe.nonlambda; | ||
|
|
||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.concurrent.Executors; | ||
| import java.util.concurrent.TimeUnit; | ||
| import java.util.concurrent.atomic.AtomicInteger; | ||
|
|
||
| import org.springframework.beans.factory.annotation.Autowired; | ||
| import org.springframework.boot.SpringApplication; | ||
| import org.springframework.boot.autoconfigure.SpringBootApplication; | ||
| import org.springframework.context.ConfigurableApplicationContext; | ||
| import org.springframework.context.annotation.Bean; | ||
| import org.springframework.integration.annotation.Aggregator; | ||
| import org.springframework.integration.annotation.CorrelationStrategy; | ||
| import org.springframework.integration.annotation.Gateway; | ||
| import org.springframework.integration.annotation.IntegrationComponentScan; | ||
| import org.springframework.integration.annotation.MessagingGateway; | ||
| import org.springframework.integration.dsl.AggregatorSpec; | ||
| import org.springframework.integration.dsl.IntegrationFlow; | ||
| import org.springframework.integration.dsl.IntegrationFlows; | ||
| import org.springframework.integration.dsl.RouterSpec; | ||
| import org.springframework.integration.dsl.channel.MessageChannels; | ||
| import org.springframework.integration.dsl.core.Pollers; | ||
| import org.springframework.integration.dsl.support.Consumer; | ||
| import org.springframework.integration.dsl.support.GenericHandler; | ||
| import org.springframework.integration.router.ExpressionEvaluatingRouter; | ||
| import org.springframework.integration.samples.cafe.Delivery; | ||
| import org.springframework.integration.samples.cafe.Drink; | ||
| import org.springframework.integration.samples.cafe.DrinkType; | ||
| import org.springframework.integration.samples.cafe.Order; | ||
| import org.springframework.integration.samples.cafe.OrderItem; | ||
| import org.springframework.integration.scheduling.PollerMetadata; | ||
| import org.springframework.integration.stream.CharacterStreamWritingMessageHandler; | ||
| import org.springframework.integration.transformer.GenericTransformer; | ||
| import org.springframework.stereotype.Component; | ||
|
|
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| import com.google.common.util.concurrent.Uninterruptibles; | ||
|
|
||
| /** | ||
| * @author Artem Bilan | ||
| * @since 3.0 | ||
| */ | ||
| @SpringBootApplication | ||
| @IntegrationComponentScan | ||
| public class Application { | ||
|
|
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| public static void main(String[] args) throws Exception { | ||
| ConfigurableApplicationContext ctx = | ||
| SpringApplication.run(Application.class, args); | ||
|
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| Cafe cafe = ctx.getBean(Cafe.class); | ||
| for (int i = 1; i <= 100; 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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| System.out.println("Hit 'Enter' to terminate"); | ||
| System.in.read(); | ||
| ctx.close(); | ||
| } | ||
|
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| @MessagingGateway | ||
| public interface Cafe { | ||
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| @Gateway(requestChannel = "orders.input") | ||
| void placeOrder(Order order); | ||
|
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| } | ||
|
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| private final AtomicInteger hotDrinkCounter = new AtomicInteger(); | ||
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| private final AtomicInteger coldDrinkCounter = new AtomicInteger(); | ||
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| @Autowired | ||
| private CafeAggregator cafeAggregator; | ||
|
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| @Bean(name = PollerMetadata.DEFAULT_POLLER) | ||
| public PollerMetadata poller() { | ||
| return Pollers.fixedDelay(1000).get(); | ||
| } | ||
|
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| @Bean | ||
| @SuppressWarnings("unchecked") | ||
| public IntegrationFlow orders() { | ||
| return IntegrationFlows.from("orders.input") | ||
| .split("payload.items", (Consumer) null) | ||
| .channel(MessageChannels.executor(Executors.newCachedThreadPool())) | ||
| .route("payload.iced", | ||
| new Consumer<RouterSpec<ExpressionEvaluatingRouter>>() { | ||
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| @Override | ||
| public void accept(RouterSpec<ExpressionEvaluatingRouter> spec) { | ||
| spec.channelMapping("true", "iced") | ||
| .channelMapping("false", "hot"); | ||
| } | ||
|
|
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| }) | ||
| .get(); | ||
| } | ||
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| @Bean | ||
| public IntegrationFlow icedFlow() { | ||
| return IntegrationFlows.from(MessageChannels.queue("iced", 10)) | ||
| .handle(new GenericHandler<OrderItem>() { | ||
|
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| @Override | ||
| public Object handle(OrderItem payload, Map<String, Object> headers) { | ||
| Uninterruptibles.sleepUninterruptibly(1, TimeUnit.SECONDS); | ||
| System.out.println(Thread.currentThread().getName() | ||
| + " prepared cold drink #" + coldDrinkCounter.incrementAndGet() | ||
| + " for order #" + payload.getOrderNumber() + ": " + payload); | ||
| return payload; | ||
| } | ||
|
|
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| }) | ||
| .channel("output") | ||
| .get(); | ||
| } | ||
|
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| @Bean | ||
| public IntegrationFlow hotFlow() { | ||
| return IntegrationFlows.from(MessageChannels.queue("hot", 10)) | ||
| .handle(new GenericHandler<OrderItem>() { | ||
|
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| @Override | ||
| public Object handle(OrderItem payload, Map<String, Object> headers) { | ||
| Uninterruptibles.sleepUninterruptibly(5, TimeUnit.SECONDS); | ||
| System.out.println(Thread.currentThread().getName() | ||
| + " prepared hot drink #" + hotDrinkCounter.incrementAndGet() | ||
| + " for order #" + payload.getOrderNumber() + ": " + payload); | ||
| return payload; | ||
| } | ||
|
|
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| }) | ||
| .channel("output") | ||
| .get(); | ||
| } | ||
|
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| @Bean | ||
| public IntegrationFlow resultFlow() { | ||
| return IntegrationFlows.from("output") | ||
| .transform(new GenericTransformer<OrderItem, Drink>() { | ||
|
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| @Override | ||
| public Drink transform(OrderItem orderItem) { | ||
| return new Drink(orderItem.getOrderNumber(), | ||
| orderItem.getDrinkType(), | ||
| orderItem.isIced(), | ||
| orderItem.getShots()); | ||
| } | ||
|
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| }) | ||
| .aggregate(new Consumer<AggregatorSpec>() { | ||
|
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| @Override | ||
| public void accept(AggregatorSpec aggregatorSpec) { | ||
| aggregatorSpec.processor(cafeAggregator, null); | ||
| } | ||
|
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| }, null) | ||
| .handle(CharacterStreamWritingMessageHandler.stdout()) | ||
| .get(); | ||
| } | ||
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| @Component | ||
| public static class CafeAggregator { | ||
|
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| @Aggregator | ||
| public Delivery output(List<Drink> drinks) { | ||
| return new Delivery(drinks); | ||
| } | ||
|
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| @CorrelationStrategy | ||
| public Integer correlation(Drink drink) { | ||
| return drink.getOrderNumber(); | ||
| } | ||
|
|
||
| } | ||
|
|
||
| } |
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