Hallo Amazon S3 Control

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Das folgende Codebeispiel zeigt, wie Sie mit Amazon S3 Control beginnen können.

Java

SDK für Java 2.x

Anmerkung

Es gibt noch mehr dazu GitHub. Sie sehen das vollständige Beispiel und erfahren, wie Sie das AWS -Code-Beispiel-Repository einrichten und ausführen.

import software.amazon.awssdk.auth.credentials.EnvironmentVariableCredentialsProvider;
import software.amazon.awssdk.core.client.config.ClientOverrideConfiguration;
import software.amazon.awssdk.core.retry.RetryMode;
import software.amazon.awssdk.core.retry.RetryPolicy;
import software.amazon.awssdk.http.async.SdkAsyncHttpClient;
import software.amazon.awssdk.http.nio.netty.NettyNioAsyncHttpClient;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.s3control.S3ControlAsyncClient;
import software.amazon.awssdk.services.s3control.model.JobListDescriptor;
import software.amazon.awssdk.services.s3control.model.JobStatus;
import software.amazon.awssdk.services.s3control.model.ListJobsRequest;
import software.amazon.awssdk.services.s3control.paginators.ListJobsPublisher;
import java.time.Duration;
import java.util.List;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionException;

/**
 * Before running this example:
 * <p/>
 * The SDK must be able to authenticate AWS requests on your behalf. If you have not configured
 * authentication for SDKs and tools,see https://docs.aws.amazon.com/sdkref/latest/guide/access.html in the AWS SDKs and Tools Reference Guide.
 * <p/>
 * You must have a runtime environment configured with the Java SDK.
 * See https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/setup.html in the Developer Guide if this is not set up.
 */
public class HelloS3Batch {
    private static S3ControlAsyncClient asyncClient;

    public static void main(String[] args) {
        S3BatchActions actions = new S3BatchActions();
        String accountId = actions.getAccountId();
        try {
            listBatchJobsAsync(accountId)
                .exceptionally(ex -> {
                    System.err.println("List batch jobs failed: " + ex.getMessage());
                    return null;
                })
                .join();

        } catch (CompletionException ex) {
            System.err.println("Failed to list batch jobs: " + ex.getMessage());
        }
    }

    /**
     * Retrieves the asynchronous S3 Control client instance.
     * <p>
     * This method creates and returns a singleton instance of the {@link S3ControlAsyncClient}. If the instance
     * has not been created yet, it will be initialized with the following configuration:
     * <ul>
     *   <li>Maximum concurrency: 100</li>
     *   <li>Connection timeout: 60 seconds</li>
     *   <li>Read timeout: 60 seconds</li>
     *   <li>Write timeout: 60 seconds</li>
     *   <li>API call timeout: 2 minutes</li>
     *   <li>API call attempt timeout: 90 seconds</li>
     *   <li>Retry policy: 3 retries</li>
     *   <li>Region: US_EAST_1</li>
     *   <li>Credentials provider: {@link EnvironmentVariableCredentialsProvider}</li>
     * </ul>
     *
     * @return the asynchronous S3 Control client instance
     */
    private static S3ControlAsyncClient getAsyncClient() {
        if (asyncClient == null) {
            SdkAsyncHttpClient httpClient = NettyNioAsyncHttpClient.builder()
                .maxConcurrency(100)
                .connectionTimeout(Duration.ofSeconds(60))
                .readTimeout(Duration.ofSeconds(60))
                .writeTimeout(Duration.ofSeconds(60))
                .build();

            ClientOverrideConfiguration overrideConfig = ClientOverrideConfiguration.builder()
                .apiCallTimeout(Duration.ofMinutes(2))
                .apiCallAttemptTimeout(Duration.ofSeconds(90))
                .retryStrategy(RetryMode.STANDARD)
                .build();

            asyncClient = S3ControlAsyncClient.builder()
                .region(Region.US_EAST_1)
                .httpClient(httpClient)
                .overrideConfiguration(overrideConfig)
                .credentialsProvider(EnvironmentVariableCredentialsProvider.create())
                .build();
        }
        return asyncClient;
    }

    /**
     * Asynchronously lists batch jobs that have completed for the specified account.
     *
     * @param accountId the ID of the account to list jobs for
     * @return a CompletableFuture that completes when the job listing operation is finished
     */
    public static CompletableFuture<Void> listBatchJobsAsync(String accountId) {
        ListJobsRequest jobsRequest = ListJobsRequest.builder()
            .jobStatuses(JobStatus.COMPLETE)
            .accountId(accountId)
            .maxResults(10)
            .build();

        ListJobsPublisher publisher = getAsyncClient().listJobsPaginator(jobsRequest);
        return publisher.subscribe(response -> {
            List<JobListDescriptor> jobs = response.jobs();
            for (JobListDescriptor job : jobs) {
                System.out.println("The job id is " + job.jobId());
                System.out.println("The job priority is " + job.priority());
            }
        }).thenAccept(response -> {
            System.out.println("Listing batch jobs completed");
        }).exceptionally(ex -> {
            System.err.println("Failed to list batch jobs: " + ex.getMessage());
            throw new RuntimeException(ex);
        });
    }

• Einzelheiten zur API finden Sie ListJobsin der AWS SDK for Java 2.x API-Referenz.