CreateDatasetMit einem AWS SDK verwenden

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Das folgende Codebeispiel zeigt, wie es verwendet wirdCreateDataset.

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.regions.Region;
import software.amazon.awssdk.services.forecast.ForecastClient;
import software.amazon.awssdk.services.forecast.model.CreateDatasetRequest;
import software.amazon.awssdk.services.forecast.model.Schema;
import software.amazon.awssdk.services.forecast.model.SchemaAttribute;
import software.amazon.awssdk.services.forecast.model.CreateDatasetResponse;
import software.amazon.awssdk.services.forecast.model.ForecastException;
import java.util.ArrayList;
import java.util.List;

/**
 * Before running this Java V2 code example, set up your development
 * environment, including your credentials.
 *
 * For more information, see the following documentation topic:
 *
 * https://docs.aws.amazon.com/sdk-for-java/latest/developer-guide/get-started.html
 */
public class CreateDataSet {
    public static void main(String[] args) {
        final String usage = """

                Usage:
                    <name>\s

                Where:
                    name - The name of the data set.\s
                """;

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

        String name = args[0];
        Region region = Region.US_WEST_2;
        ForecastClient forecast = ForecastClient.builder()
                .region(region)
                .build();

        String myDataSetARN = createForecastDataSet(forecast, name);
        System.out.println("The ARN of the new data set is " + myDataSetARN);
        forecast.close();
    }

    public static String createForecastDataSet(ForecastClient forecast, String name) {
        try {
            Schema schema = Schema.builder()
                    .attributes(getSchema())
                    .build();

            CreateDatasetRequest datasetRequest = CreateDatasetRequest.builder()
                    .datasetName(name)
                    .domain("CUSTOM")
                    .datasetType("RELATED_TIME_SERIES")
                    .dataFrequency("D")
                    .schema(schema)
                    .build();

            CreateDatasetResponse response = forecast.createDataset(datasetRequest);
            return response.datasetArn();

        } catch (ForecastException e) {
            System.err.println(e.awsErrorDetails().errorMessage());
            System.exit(1);
        }

        return "";
    }

    // Create a SchemaAttribute list required to create a data set.
    private static List<SchemaAttribute> getSchema() {

        List<SchemaAttribute> schemaList = new ArrayList<>();
        SchemaAttribute att1 = SchemaAttribute.builder()
                .attributeName("item_id")
                .attributeType("string")
                .build();

        SchemaAttribute att2 = SchemaAttribute.builder()
                .attributeName("timestamp")
                .attributeType("timestamp")
                .build();

        SchemaAttribute att3 = SchemaAttribute.builder()
                .attributeName("target_value")
                .attributeType("float")
                .build();

        // Push the SchemaAttribute objects to the List.
        schemaList.add(att1);
        schemaList.add(att2);
        schemaList.add(att3);
        return schemaList;
    }
}

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