lab2: Simple sender and reciever

lab3/consumer/app/build.gradle

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+/*
+ * This file was generated by the Gradle 'init' task.
+ *
+ * This generated file contains a sample Java application project to get you started.
+ * For more details on building Java & JVM projects, please refer to https://docs.gradle.org/8.8/userguide/building_java_projects.html in the Gradle documentation.
+ */
+
+plugins {
+    // Apply the application plugin to add support for building a CLI application in Java.
+    id 'application'
+}
+
+repositories {
+    // Use Maven Central for resolving dependencies.
+    mavenCentral()
+}
+
+dependencies {
+    // Use JUnit Jupiter for testing.
+    testImplementation libs.junit.jupiter
+
+    testRuntimeOnly 'org.junit.platform:junit-platform-launcher'
+    
+    implementation libs.com.rabbitmq.client
+}
+
+// Apply a specific Java toolchain to ease working on different environments.
+java {
+    toolchain {
+        languageVersion = JavaLanguageVersion.of(21)
+    }
+}
+
+application {
+    // Define the main class for the application.
+    mainClass = 'dev.tishenko.consumer.Recv'
+}
+
+tasks.named('test') {
+    // Use JUnit Platform for unit tests.
+    useJUnitPlatform()
+}

lab3/consumer/app/src/main/java/dev/tishenko/consumer/Recv.java

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+package dev.tishenko.consumer;
+
+import com.rabbitmq.client.Channel;
+import com.rabbitmq.client.Connection;
+import com.rabbitmq.client.ConnectionFactory;
+import com.rabbitmq.client.DeliverCallback;
+
+public class Recv {
+    private final static String QUEUE_NAME = "hello";
+
+    public static void main(String[] argv) throws Exception {
+        ConnectionFactory factory = new ConnectionFactory();
+        factory.setHost("localhost");
+        Connection connection = factory.newConnection();
+        Channel channel = connection.createChannel();
+
+        channel.queueDeclare(QUEUE_NAME, false, false, false, null);
+        System.out.println(" [*] Waiting for messages. To exit press CTRL+C");
+
+        DeliverCallback deliverCallback = (consumerTag, delivery) -> {
+            String message = new String(delivery.getBody(), "UTF-8");
+            System.out.println(" [x] Received '" + message + "'");
+        };
+        channel.basicConsume(QUEUE_NAME, true, deliverCallback, consumerTag -> {
+        });
+    }
+}