Esportazione di un archivio DICOM in Cloud Storage

Esporta i dati dell'archivio DICOM in Cloud Storage.

Per saperne di più

Per la documentazione dettagliata che include questo esempio di codice, vedi quanto segue:

Importazione ed esportazione di dati DICOM tramite Cloud Storage

Esempio di codice

Go

Prima di provare questo esempio, segui le istruzioni di configurazione di Go riportate nella guida rapida dell'API Cloud Healthcare utilizzando le librerie client. Per maggiori informazioni, consulta la documentazione di riferimento dell'API Cloud Healthcare Go.

Per eseguire l'autenticazione all'API Cloud Healthcare, configura le Credenziali predefinite dell'applicazione. Per maggiori informazioni, consulta Configurare l'autenticazione per un ambiente di sviluppo locale.

import (
	"context"
	"fmt"
	"io"

	healthcare "google.golang.org/api/healthcare/v1"
)

// exportDICOMInstance exports DICOM objects to GCS.
func exportDICOMInstance(w io.Writer, projectID, location, datasetID, dicomStoreID, destination string) error {
	ctx := context.Background()

	healthcareService, err := healthcare.NewService(ctx)
	if err != nil {
		return fmt.Errorf("healthcare.NewService: %w", err)
	}

	storesService := healthcareService.Projects.Locations.Datasets.DicomStores

	req := &healthcare.ExportDicomDataRequest{
		GcsDestination: &healthcare.GoogleCloudHealthcareV1DicomGcsDestination{
			UriPrefix: destination, // "gs://my-bucket/path/to/prefix/"
		},
	}
	name := fmt.Sprintf("projects/%s/locations/%s/datasets/%s/dicomStores/%s", projectID, location, datasetID, dicomStoreID)

	lro, err := storesService.Export(name, req).Do()
	if err != nil {
		return fmt.Errorf("Export: %w", err)
	}

	fmt.Fprintf(w, "Export to DICOM store started. Operation: %q\n", lro.Name)
	return nil
}

Java

Prima di provare questo esempio, segui le istruzioni di configurazione di Java riportate nella guida rapida dell'API Cloud Healthcare utilizzando le librerie client. Per maggiori informazioni, consulta la documentazione di riferimento dell'API Cloud Healthcare Java.

import com.google.api.client.http.HttpRequestInitializer;
import com.google.api.client.http.javanet.NetHttpTransport;
import com.google.api.client.json.JsonFactory;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.healthcare.v1.CloudHealthcare;
import com.google.api.services.healthcare.v1.CloudHealthcare.Projects.Locations.Datasets.DicomStores;
import com.google.api.services.healthcare.v1.CloudHealthcareScopes;
import com.google.api.services.healthcare.v1.model.ExportDicomDataRequest;
import com.google.api.services.healthcare.v1.model.GoogleCloudHealthcareV1DicomGcsDestination;
import com.google.api.services.healthcare.v1.model.Operation;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import java.io.IOException;
import java.util.Collections;

public class DicomStoreExport {
  private static final String DICOM_NAME = "projects/%s/locations/%s/datasets/%s/dicomStores/%s";
  private static final JsonFactory JSON_FACTORY = new GsonFactory();
  private static final NetHttpTransport HTTP_TRANSPORT = new NetHttpTransport();

  public static void dicomStoreExport(String dicomStoreName, String gcsUri) throws IOException {
    // String dicomStoreName =
    //    String.format(
    //        DICOM_NAME, "your-project-id", "your-region-id", "your-dataset-id", "your-dicom-id");
    // String gcsUri = "gs://your-bucket-id/path/to/destination/dir"

    // Initialize the client, which will be used to interact with the service.
    CloudHealthcare client = createClient();

    // Configure where the store will be exported too.
    GoogleCloudHealthcareV1DicomGcsDestination gcsDestination =
        new GoogleCloudHealthcareV1DicomGcsDestination().setUriPrefix(gcsUri);
    ExportDicomDataRequest exportRequest =
        new ExportDicomDataRequest().setGcsDestination(gcsDestination);

    // Create request and configure any parameters.
    DicomStores.Export request =
        client
            .projects()
            .locations()
            .datasets()
            .dicomStores()
            .export(dicomStoreName, exportRequest);

    // Execute the request, wait for the operation to complete, and process the results.
    try {
      Operation operation = request.execute();
      while (operation.getDone() == null || !operation.getDone()) {
        // Update the status of the operation with another request.
        Thread.sleep(500); // Pause for 500ms between requests.
        operation =
            client
                .projects()
                .locations()
                .datasets()
                .operations()
                .get(operation.getName())
                .execute();
      }
      System.out.println("DICOM store export complete." + operation.getResponse());
    } catch (Exception ex) {
      System.out.printf("Error during request execution: %s", ex.toString());
      ex.printStackTrace(System.out);
    }
  }

  private static CloudHealthcare createClient() throws IOException {
    // Use Application Default Credentials (ADC) to authenticate the requests
    // For more information see https://cloud.google.com/docs/authentication/production
    GoogleCredentials credential =
        GoogleCredentials.getApplicationDefault()
            .createScoped(Collections.singleton(CloudHealthcareScopes.CLOUD_PLATFORM));

    // Create a HttpRequestInitializer, which will provide a baseline configuration to all requests.
    HttpRequestInitializer requestInitializer =
        request -> {
          new HttpCredentialsAdapter(credential).initialize(request);
          request.setConnectTimeout(60000); // 1 minute connect timeout
          request.setReadTimeout(60000); // 1 minute read timeout
        };

    // Build the client for interacting with the service.
    return new CloudHealthcare.Builder(HTTP_TRANSPORT, JSON_FACTORY, requestInitializer)
        .setApplicationName("your-application-name")
        .build();
  }
}

Node.js

Prima di provare questo esempio, segui le istruzioni di configurazione di Node.js riportate nella guida rapida dell'API Cloud Healthcare utilizzando le librerie client. Per maggiori informazioni, consulta la documentazione di riferimento dell'API Cloud Healthcare Node.js.

const google = require('@googleapis/healthcare');
const healthcare = google.healthcare({
  version: 'v1',
  auth: new google.auth.GoogleAuth({
    scopes: ['https://www.googleapis.com/auth/cloud-platform'],
  }),
});

const exportDicomInstanceGcs = async () => {
  // TODO(developer): uncomment these lines before running the sample
  // const cloudRegion = 'us-central1';
  // const projectId = 'adjective-noun-123';
  // const datasetId = 'my-dataset';
  // const dicomStoreId = 'my-dicom-store';
  // const gcsUri = 'my-bucket/my-directory'
  const name = `projects/${projectId}/locations/${cloudRegion}/datasets/${datasetId}/dicomStores/${dicomStoreId}`;
  const request = {
    name,
    resource: {
      gcsDestination: {
        // The destination location of the DICOM instances in Cloud Storage
        uriPrefix: `gs://${gcsUri}`,
        // The format to use for the output files, per the MIME types supported in the DICOM spec
        mimeType: 'application/dicom',
      },
    },
  };

  await healthcare.projects.locations.datasets.dicomStores.export(request);
  console.log(`Exported DICOM instances to ${gcsUri}`);
};

exportDicomInstanceGcs();

Python

Prima di provare questo esempio, segui le istruzioni di configurazione di Python riportate nella guida rapida dell'API Cloud Healthcare utilizzando le librerie client. Per maggiori informazioni, consulta la documentazione di riferimento dell'API Cloud Healthcare Python.

def export_dicom_instance(project_id, location, dataset_id, dicom_store_id, uri_prefix):
    """Export data to a Google Cloud Storage bucket by copying
    it from the DICOM store.

    See https://github.com/GoogleCloudPlatform/python-docs-samples/tree/main/healthcare/api-client/v1/dicom
    before running the sample."""
    # Imports the Google API Discovery Service.
    from googleapiclient import discovery

    api_version = "v1"
    service_name = "healthcare"
    # Returns an authorized API client by discovering the Healthcare API
    # and using GOOGLE_APPLICATION_CREDENTIALS environment variable.
    client = discovery.build(service_name, api_version)

    # TODO(developer): Uncomment these lines and replace with your values.
    # project_id = 'my-project'  # replace with your GCP project ID
    # location = 'us-central1'  # replace with the parent dataset's location
    # dataset_id = 'my-dataset'  # replace with the DICOM store's parent dataset ID
    # dicom_store_id = 'my-dicom-store'  # replace with the DICOM store's ID
    # uri_prefix = 'my-bucket'  # replace with a Cloud Storage bucket
    dicom_store_parent = "projects/{}/locations/{}/datasets/{}".format(
        project_id, location, dataset_id
    )
    dicom_store_name = f"{dicom_store_parent}/dicomStores/{dicom_store_id}"

    body = {"gcsDestination": {"uriPrefix": f"gs://{uri_prefix}"}}

    request = (
        client.projects()
        .locations()
        .datasets()
        .dicomStores()
        .export(name=dicom_store_name, body=body)
    )

    response = request.execute()
    print(f"Exported DICOM instances to bucket: gs://{uri_prefix}")

    return response

Passaggi successivi

Per cercare e filtrare esempi di codice per altri prodotti Google Cloud, consulta il browser di esempio Google Cloud.