データセットの削除

dataset-arn の値を削除するデータセットの ARN に変更します。

aws rekognition delete-dataset --dataset-arn dataset-arn \
  --profile custom-labels-access

次のコードを使用します。次のコマンドラインパラメータを指定します。

# Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
# SPDX-License-Identifier: Apache-2.0

"""
Purpose
Shows how to delete an Amazon Rekognition Custom Labels dataset.
"""
import argparse
import logging
import time
import boto3

from botocore.exceptions import ClientError

logger = logging.getLogger(__name__)


def delete_dataset(rek_client, dataset_arn):
    """
    Deletes an Amazon Rekognition Custom Labels dataset.
    :param rek_client: The Amazon Rekognition Custom Labels Boto3 client.
    :param dataset_arn: The ARN of the dataset that you want to delete.
    """

    try:
        # Delete the dataset,
        logger.info("Deleting dataset: %s", dataset_arn)

        rek_client.delete_dataset(DatasetArn=dataset_arn)

        deleted = False

        logger.info("waiting for dataset deletion %s", dataset_arn)

        # Dataset might not be deleted yet, so wait.
        while deleted is False:
            try:
                rek_client.describe_dataset(DatasetArn=dataset_arn)
                time.sleep(5)
            except ClientError as err:
                if err.response['Error']['Code'] == 'ResourceNotFoundException':
                    logger.info("dataset deleted: %s", dataset_arn)
                    deleted = True
                else:
                    raise

        logger.info("dataset deleted: %s", dataset_arn)

        return True

    except ClientError as err:
        logger.exception("Couldn't delete dataset - %s: %s",
                         dataset_arn, err.response['Error']['Message'])
        raise


def add_arguments(parser):
    """
    Adds command line arguments to the parser.
    :param parser: The command line parser.
    """

    parser.add_argument(
        "dataset_arn", help="The ARN of the dataset that you want to delete."
    )


def main():

    logging.basicConfig(level=logging.INFO,
                        format="%(levelname)s: %(message)s")

    try:

        # Get command line arguments.
        parser = argparse.ArgumentParser(usage=argparse.SUPPRESS)
        add_arguments(parser)
        args = parser.parse_args()

        print(f"Deleting dataset: {args.dataset_arn}")

        # Delete the dataset.
        session = boto3.Session(profile_name='custom-labels-access')
        rekognition_client = session.client("rekognition")

        delete_dataset(rekognition_client,
                       args.dataset_arn)

        print(f"Finished deleting dataset: {args.dataset_arn}")

    except ClientError as err:
        error_message = f"Problem deleting dataset: {err}"
        logger.exception(error_message)
        print(error_message)


if __name__ == "__main__":
    main()

次のコードを使用します。次のコマンドラインパラメータを指定します。

/*
   Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
   SPDX-License-Identifier: Apache-2.0
*/
package com.example.rekognition;

import java.util.logging.Level;
import java.util.logging.Logger;

import software.amazon.awssdk.auth.credentials.ProfileCredentialsProvider;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.rekognition.RekognitionClient;
import software.amazon.awssdk.services.rekognition.model.DeleteDatasetRequest;
import software.amazon.awssdk.services.rekognition.model.DeleteDatasetResponse;
import software.amazon.awssdk.services.rekognition.model.DescribeDatasetRequest;
import software.amazon.awssdk.services.rekognition.model.RekognitionException;

public class DeleteDataset {

    public static final Logger logger = Logger.getLogger(DeleteDataset.class.getName());

    public static void deleteMyDataset(RekognitionClient rekClient, String datasetArn) throws InterruptedException {

        try {

            logger.log(Level.INFO, "Deleting dataset: {0}", datasetArn);

            // Delete the dataset

            DeleteDatasetRequest deleteDatasetRequest = DeleteDatasetRequest.builder().datasetArn(datasetArn).build();

            DeleteDatasetResponse response = rekClient.deleteDataset(deleteDatasetRequest);

            // Wait until deletion finishes

            DescribeDatasetRequest describeDatasetRequest = DescribeDatasetRequest.builder().datasetArn(datasetArn)
                    .build();

            Boolean deleted = false;

            do {

                try {

                    rekClient.describeDataset(describeDatasetRequest);
                    Thread.sleep(5000);
                } catch (RekognitionException e) {
                    String errorCode = e.awsErrorDetails().errorCode();
                    if (errorCode.equals("ResourceNotFoundException")) {
                        logger.log(Level.INFO, "Dataset deleted: {0}", datasetArn);
                        deleted = true;
                    } else {
                        logger.log(Level.SEVERE, "Client error occurred: {0}", e.getMessage());
                        throw e;
                    }

                }

            } while (Boolean.FALSE.equals(deleted));

            logger.log(Level.INFO, "Dataset deleted: {0} ", datasetArn);

        } catch (

        RekognitionException e) {
            logger.log(Level.SEVERE, "Client error occurred: {0}", e.getMessage());
            throw e;
        }

    }

    public static void main(String args[]) {

        final String USAGE = "\n" + "Usage: " + "<dataset_arn>\n\n" + "Where:\n"
                + "   dataset_arn - The ARN of the dataset that you want to delete.\n\n";

        if (args.length != 1) {
            System.out.println(USAGE);
            System.exit(1);
        }

        String datasetArn = args[0];

        try {

            // Get the Rekognition client.
            RekognitionClient rekClient = RekognitionClient.builder()
                .credentialsProvider(ProfileCredentialsProvider.create("custom-labels-access"))
                .region(Region.US_WEST_2)
                .build();


            // Delete the dataset
            deleteMyDataset(rekClient, datasetArn);

            System.out.println(String.format("Dataset deleted: %s", datasetArn));

            rekClient.close();

        } catch (RekognitionException rekError) {
            logger.log(Level.SEVERE, "Rekognition client error: {0}", rekError.getMessage());
            System.exit(1);
        }

        catch (InterruptedException intError) {
            logger.log(Level.SEVERE, "Exception while sleeping: {0}", intError.getMessage());
            System.exit(1);
        }

    }

}