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queues, and posting to db works

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This commit is contained in:
Daniel
2024-12-13 00:03:02 +02:00
parent 8b5f755152
commit 20b7465d6b
9 changed files with 171 additions and 76 deletions
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35
SymphonyProducer/src/main/java/io/github/lumijiez/BrokerConnector.java
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@@ -8,6 +8,8 @@ import com.rabbitmq.client.ConnectionFactory;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Random;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.Executors;
@@ -17,7 +19,7 @@ import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
public class BrokerConnector {
private static final String QUEUE_NAME = "random_json_queue";
private static final String QUEUE_NAME = "random_sha";
private static final String RABBITMQ_HOST = "rabbitmq";
private static final String RABBITMQ_USER = "symphony";
private static final String RABBITMQ_PASSWORD = "symphony";
@@ -50,9 +52,9 @@ public class BrokerConnector {
scheduler.scheduleAtFixedRate(() -> {
try {
String jsonMessage = generateRandomJson();
String jsonMessage = generateRandomSHA256();
channel.basicPublish("", QUEUE_NAME, null, jsonMessage.getBytes(StandardCharsets.UTF_8));
// System.out.println("Sent: " + jsonMessage);
System.out.println("Sent: " + jsonMessage);
} catch (IOException e) {
logger.error("Failed to send message: {}", e.getMessage());
}
@@ -74,13 +76,26 @@ public class BrokerConnector {
return false;
}
private static String generateRandomJson() {
Random random = new Random();
JsonObject jsonObject = new JsonObject();
jsonObject.add("id", new JsonPrimitive(random.nextInt(1000)));
jsonObject.add("name", new JsonPrimitive("Item_" + random.nextInt(100)));
jsonObject.add("value", new JsonPrimitive(random.nextDouble() * 100));
private static String generateRandomSHA256() {
try {
Random random = new Random();
byte[] randomBytes = new byte[32];
random.nextBytes(randomBytes);
return jsonObject.toString();
MessageDigest digest = MessageDigest.getInstance("SHA-256");
byte[] hash = digest.digest(randomBytes);
StringBuilder hexString = new StringBuilder();
for (byte b : hash) {
String hex = Integer.toHexString(0xff & b);
if (hex.length() == 1) {
hexString.append('0');
}
hexString.append(hex);
}
return hexString.toString();
} catch (NoSuchAlgorithmException e) {
throw new RuntimeException("SHA-256 algorithm not available", e);
}
}
}