Gestione di messaggi Amazon SQS di grandi dimensioni con Java e Amazon S3 - Amazon Simple Queue Service
PrerequisitiAWS SDK for Java 2.x Esempio: utilizzo di Amazon S3 per gestire messaggi Amazon SQS di grandi dimensioniAWS SDK for Java 2.x Esempio: utilizzo di Amazon S3 per gestire messaggi Amazon SQS di grandi dimensioni

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Gestione di messaggi Amazon SQS di grandi dimensioni con Java e Amazon S3

Puoi utilizzare Amazon SQS Extended Client Library per Java e Amazon Simple Storage Service (Amazon S3) per gestire messaggi Amazon Simple Queue Service (Amazon SQS) di grandi dimensioni. Ciò è particolarmente utile per consumare carichi di messaggi di grandi dimensioni, da 256 KB a 2 GB. La libreria salva il payload del messaggio in un bucket Amazon S3 e invia un messaggio contenente un riferimento dell'oggetto Amazon S3 archiviato a una coda Amazon SQS.

Puoi utilizzare la libreria client ampia di Amazon SQS per Java per completare le seguenti operazioni:

  • Specificare se i messaggi vengono sempre archiviati in Amazon S3 o solo quando le dimensioni di un messaggio superano i 256 KB.

  • Inviare un messaggio che fa riferimento a un solo oggetto messaggio archiviato in un bucket S3

  • Recupera l'oggetto messaggio da un bucket Amazon S3

  • Eliminare l'oggetto messaggio da un bucket Amazon S3

Prerequisiti

L'esempio seguente utilizza l'SDK AWS Java. Per installare e configurare l'SDK, consulta Configurare l' AWS SDK for Java nella AWS SDK for Java Developer Guide.

Prima di eseguire il codice di esempio, configura le tue AWS credenziali. Per ulteriori informazioni, consulta Configurare AWS le credenziali e la regione per lo sviluppo nella Guida per gli AWS SDK for Java sviluppatori.

Gli SDK per Java e la libreria client ampia Amazon SQS per Java richiedono J2SE Development Kit 8.0 o versioni successive.

Nota

Puoi utilizzare la libreria client ampia Amazon SQS per Java per gestire i messaggi Amazon SQS utilizzando Amazon S3 solo con AWS SDK for Java. Non puoi farlo con la console Amazon SQS AWS CLI, l'API HTTP di Amazon SQS o qualsiasi altro SDK. AWS

AWS SDK for Java 2.x Esempio: utilizzo di Amazon S3 per gestire messaggi Amazon SQS di grandi dimensioni

Il seguente esempio di AWS SDK for Java 2.x crea un bucket Amazon S3 con un nome casuale e aggiunge una regola del ciclo di vita per eliminare definitivamente gli oggetti dopo 14 giorni. Inoltre, crea una coda denominata MyQueue e invia un messaggio casuale che viene archiviato in un bucket S3 e la coda supera i 256 KB. Infine, il codice utilizza il messaggio, restituisce informazioni su di esso e poi elimina il messaggio, la coda e il bucket.

/*
 * Copyright 2010-2024 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  https://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file 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.
 *
 */

import com.amazon.sqs.javamessaging.AmazonSQSExtendedClient;
import com.amazon.sqs.javamessaging.ExtendedClientConfiguration;
import com.amazonaws.services.s3.AmazonS3;
import com.amazonaws.services.s3.AmazonS3ClientBuilder;
import com.amazonaws.services.s3.model.*;
import com.amazonaws.services.sqs.AmazonSQS;
import com.amazonaws.services.sqs.AmazonSQSClientBuilder;
import com.amazonaws.services.sqs.model.*;
import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;

import java.util.Arrays;
import java.util.List;
import java.util.UUID;

public class SQSExtendedClientExample {

// Create an Amazon S3 bucket with a random name.
private final static String S3_BUCKET_NAME = UUID.randomUUID() + "-"
        + DateTimeFormat.forPattern("yyMMdd-hhmmss").print(new DateTime());

public static void main(String[] args) {

    /*
     * Create a new instance of the builder with all defaults (credentials
     * and region) set automatically. For more information, see 
     * Creating Service Clients in the AWS SDK for Java Developer Guide.
     */
    final AmazonS3 s3 = AmazonS3ClientBuilder.defaultClient();

    /*
     * Set the Amazon S3 bucket name, and then set a lifecycle rule on the
     * bucket to permanently delete objects 14 days after each object's
     * creation date.
     */
    final BucketLifecycleConfiguration.Rule expirationRule =
            new BucketLifecycleConfiguration.Rule();
    expirationRule.withExpirationInDays(14).withStatus("Enabled");
    final BucketLifecycleConfiguration lifecycleConfig =
            new BucketLifecycleConfiguration().withRules(expirationRule);

    // Create the bucket and allow message objects to be stored in the bucket.
    s3.createBucket(S3_BUCKET_NAME);
    s3.setBucketLifecycleConfiguration(S3_BUCKET_NAME, lifecycleConfig);
    System.out.println("Bucket created and configured.");

    /*
     * Set the Amazon SQS extended client configuration with large payload
     * support enabled.
     */
    final ExtendedClientConfiguration extendedClientConfig =
            new ExtendedClientConfiguration()
                    .withLargePayloadSupportEnabled(s3, S3_BUCKET_NAME);

    final AmazonSQS sqsExtended =
            new AmazonSQSExtendedClient(AmazonSQSClientBuilder
                    .defaultClient(), extendedClientConfig);

    /*
     * Create a long string of characters for the message object which will
     * be stored in the bucket.
     */
    int stringLength = 300000;
    char[] chars = new char[stringLength];
    Arrays.fill(chars, 'x');
    final String myLongString = new String(chars);

    // Create a message queue for this example.
    final String QueueName = "MyQueue" + UUID.randomUUID().toString();
    final CreateQueueRequest createQueueRequest =
            new CreateQueueRequest(QueueName);
    final String myQueueUrl = sqsExtended
            .createQueue(createQueueRequest).getQueueUrl();
    System.out.println("Queue created.");

    // Send the message.
    final SendMessageRequest myMessageRequest =
            new SendMessageRequest(myQueueUrl, myLongString);
    sqsExtended.sendMessage(myMessageRequest);
    System.out.println("Sent the message.");

    // Receive the message.
    final ReceiveMessageRequest receiveMessageRequest =
            new ReceiveMessageRequest(myQueueUrl);
    List<Message> messages = sqsExtended
            .receiveMessage(receiveMessageRequest).getMessages();

    // Print information about the message.
    for (Message message : messages) {
        System.out.println("\nMessage received.");
        System.out.println("  ID: " + message.getMessageId());
        System.out.println("  Receipt handle: " + message.getReceiptHandle());
        System.out.println("  Message body (first 5 characters): "
                + message.getBody().substring(0, 5));
    }

    // Delete the message, the queue, and the bucket.
    final String messageReceiptHandle = messages.get(0).getReceiptHandle();
    sqsExtended.deleteMessage(new DeleteMessageRequest(myQueueUrl,
            messageReceiptHandle));
    System.out.println("Deleted the message.");

    sqsExtended.deleteQueue(new DeleteQueueRequest(myQueueUrl));
    System.out.println("Deleted the queue.");

    deleteBucketAndAllContents(s3);
    System.out.println("Deleted the bucket.");
}

private static void deleteBucketAndAllContents(AmazonS3 client) {

    ObjectListing objectListing = client.listObjects(S3_BUCKET_NAME);

    while (true) {
        for (S3ObjectSummary objectSummary : objectListing
                .getObjectSummaries()) {
            client.deleteObject(S3_BUCKET_NAME, objectSummary.getKey());
        }

        if (objectListing.isTruncated()) {
            objectListing = client.listNextBatchOfObjects(objectListing);
        } else {
            break;
        }
    }

    final VersionListing list = client.listVersions(
            new ListVersionsRequest().withBucketName(S3_BUCKET_NAME));

    for (S3VersionSummary s : list.getVersionSummaries()) {
        client.deleteVersion(S3_BUCKET_NAME, s.getKey(), s.getVersionId());
    }

    client.deleteBucket(S3_BUCKET_NAME);
}
}

AWS SDK for Java 2.x Esempio: utilizzo di Amazon S3 per gestire messaggi Amazon SQS di grandi dimensioni

Il seguente esempio di AWS SDK for Java 2.x crea un bucket Amazon S3 con un nome casuale e aggiunge una regola del ciclo di vita per eliminare definitivamente gli oggetti dopo 14 giorni. Inoltre, crea una coda denominata MyQueue e invia un messaggio casuale che viene archiviato in un bucket S3 e la coda supera i 256 KB. Infine, il codice utilizza il messaggio, restituisce informazioni su di esso e poi elimina il messaggio, la coda e il bucket.

/*
 * Copyright 2010-2024 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  https://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file 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.
 *
 */
	            
	            import com.amazon.sqs.javamessaging.AmazonSQSExtendedClient;
import com.amazon.sqs.javamessaging.ExtendedClientConfiguration;
import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
import software.amazon.awssdk.services.s3.S3Client;
import software.amazon.awssdk.services.s3.model.BucketLifecycleConfiguration;
import software.amazon.awssdk.services.s3.model.CreateBucketRequest;
import software.amazon.awssdk.services.s3.model.DeleteBucketRequest;
import software.amazon.awssdk.services.s3.model.DeleteObjectRequest;
import software.amazon.awssdk.services.s3.model.ExpirationStatus;
import software.amazon.awssdk.services.s3.model.LifecycleExpiration;
import software.amazon.awssdk.services.s3.model.LifecycleRule;
import software.amazon.awssdk.services.s3.model.LifecycleRuleFilter;
import software.amazon.awssdk.services.s3.model.ListObjectVersionsRequest;
import software.amazon.awssdk.services.s3.model.ListObjectVersionsResponse;
import software.amazon.awssdk.services.s3.model.ListObjectsV2Request;
import software.amazon.awssdk.services.s3.model.ListObjectsV2Response;
import software.amazon.awssdk.services.s3.model.PutBucketLifecycleConfigurationRequest;
import software.amazon.awssdk.services.sqs.SqsClient;
import software.amazon.awssdk.services.sqs.model.CreateQueueRequest;
import software.amazon.awssdk.services.sqs.model.CreateQueueResponse;
import software.amazon.awssdk.services.sqs.model.DeleteMessageRequest;
import software.amazon.awssdk.services.sqs.model.DeleteQueueRequest;
import software.amazon.awssdk.services.sqs.model.Message;
import software.amazon.awssdk.services.sqs.model.ReceiveMessageRequest;
import software.amazon.awssdk.services.sqs.model.ReceiveMessageResponse;
import software.amazon.awssdk.services.sqs.model.SendMessageRequest;

import java.util.Arrays;
import java.util.List;
import java.util.UUID;


/**
 * Examples of using Amazon SQS Extended Client Library for Java 2.x
 *
 */
public class SqsExtendedClientExamples {
    // Create an Amazon S3 bucket with a random name.
    private final static String S3_BUCKET_NAME = UUID.randomUUID() + "-"
            + DateTimeFormat.forPattern("yyMMdd-hhmmss").print(new DateTime());

    public static void main(String[] args) {

        /*
         * Create a new instance of the builder with all defaults (credentials
         * and region) set automatically. For more information, see
         * Creating Service Clients in the AWS SDK for Java Developer Guide.
         */
        final S3Client s3 = S3Client.create();

        /*
         * Set the Amazon S3 bucket name, and then set a lifecycle rule on the
         * bucket to permanently delete objects 14 days after each object's
         * creation date.
         */
        final LifecycleRule lifeCycleRule = LifecycleRule.builder()
                .expiration(LifecycleExpiration.builder().days(14).build())
                .filter(LifecycleRuleFilter.builder().prefix("").build())
                .status(ExpirationStatus.ENABLED)
                .build();
        final BucketLifecycleConfiguration lifecycleConfig = BucketLifecycleConfiguration.builder()
                .rules(lifeCycleRule)
                .build();

        // Create the bucket and configure it
        s3.createBucket(CreateBucketRequest.builder().bucket(S3_BUCKET_NAME).build());
        s3.putBucketLifecycleConfiguration(PutBucketLifecycleConfigurationRequest.builder()
                .bucket(S3_BUCKET_NAME)
                .lifecycleConfiguration(lifecycleConfig)
                .build());
        System.out.println("Bucket created and configured.");

        // Set the Amazon SQS extended client configuration with large payload support enabled
        final ExtendedClientConfiguration extendedClientConfig = new ExtendedClientConfiguration().withPayloadSupportEnabled(s3, S3_BUCKET_NAME);

        final SqsClient sqsExtended = new AmazonSQSExtendedClient(SqsClient.builder().build(), extendedClientConfig);

        // Create a long string of characters for the message object
        int stringLength = 300000;
        char[] chars = new char[stringLength];
        Arrays.fill(chars, 'x');
        final String myLongString = new String(chars);

        // Create a message queue for this example
        final String queueName = "MyQueue-" + UUID.randomUUID();
        final CreateQueueResponse createQueueResponse = sqsExtended.createQueue(CreateQueueRequest.builder().queueName(queueName).build());
        final String myQueueUrl = createQueueResponse.queueUrl();
        System.out.println("Queue created.");

        // Send the message
        final SendMessageRequest sendMessageRequest = SendMessageRequest.builder()
                .queueUrl(myQueueUrl)
                .messageBody(myLongString)
                .build();
        sqsExtended.sendMessage(sendMessageRequest);
        System.out.println("Sent the message.");

        // Receive the message
        final ReceiveMessageResponse receiveMessageResponse = sqsExtended.receiveMessage(ReceiveMessageRequest.builder().queueUrl(myQueueUrl).build());
        List<Message> messages = receiveMessageResponse.messages();

        // Print information about the message
        for (Message message : messages) {
            System.out.println("\nMessage received.");
            System.out.println("  ID: " + message.messageId());
            System.out.println("  Receipt handle: " + message.receiptHandle());
            System.out.println("  Message body (first 5 characters): " + message.body().substring(0, 5));
        }

        // Delete the message, the queue, and the bucket
        final String messageReceiptHandle = messages.get(0).receiptHandle();
        sqsExtended.deleteMessage(DeleteMessageRequest.builder().queueUrl(myQueueUrl).receiptHandle(messageReceiptHandle).build());
        System.out.println("Deleted the message.");

        sqsExtended.deleteQueue(DeleteQueueRequest.builder().queueUrl(myQueueUrl).build());
        System.out.println("Deleted the queue.");

        deleteBucketAndAllContents(s3);
        System.out.println("Deleted the bucket.");

    }

    private static void deleteBucketAndAllContents(S3Client client) {
        ListObjectsV2Response listObjectsResponse = client.listObjectsV2(ListObjectsV2Request.builder().bucket(S3_BUCKET_NAME).build());

        listObjectsResponse.contents().forEach(object -> {
            client.deleteObject(DeleteObjectRequest.builder().bucket(S3_BUCKET_NAME).key(object.key()).build());
        });

        ListObjectVersionsResponse listVersionsResponse = client.listObjectVersions(ListObjectVersionsRequest.builder().bucket(S3_BUCKET_NAME).build());

        listVersionsResponse.versions().forEach(version -> {
            client.deleteObject(DeleteObjectRequest.builder().bucket(S3_BUCKET_NAME).key(version.key()).versionId(version.versionId()).build());
        });

        client.deleteBucket(DeleteBucketRequest.builder().bucket(S3_BUCKET_NAME).build());
    }
}

Puoi usare Apache Maven per configurare e creare Amazon SQS Extended Client per il tuo progetto Java o per creare l'SDK stesso. Specificate i singoli moduli dall'SDK che utilizzate nella vostra applicazione. 


<properties>
    <aws-java-sdk.version>2.20.153</aws-java-sdk.version>
</properties>

<dependencies>
    <dependency>
      <groupId>software.amazon.awssdk</groupId>
      <artifactId>sqs</artifactId>
      <version>${aws-java-sdk.version}</version>
    </dependency>
    <dependency>
      <groupId>software.amazon.awssdk</groupId>
      <artifactId>s3</artifactId>
      <version>${aws-java-sdk.version}</version>
    </dependency>
    <dependency>
      <groupId>com.amazonaws</groupId>
      <artifactId>amazon-sqs-java-extended-client-lib</artifactId>
      <version>2.0.4</version>
    </dependency>

    <dependency>
      <groupId>joda-time</groupId>
      <artifactId>joda-time</artifactId>
      <version>2.12.6</version>
    </dependency>
</dependencies>