import com.google.cloud.bigquery.Acl;
import com.google.cloud.bigquery.BigQuery;
import com.google.cloud.bigquery.BigQueryException;
import com.google.cloud.bigquery.BigQueryOptions;
import com.google.cloud.bigquery.Dataset;
import com.google.cloud.bigquery.DatasetId;
import com.google.common.collect.ImmutableList;
import java.util.ArrayList;
import java.util.List;
public class AuthorizeDataset {
public static void main(String[] args) {
// TODO(developer): Replace these variables before running the sample.
String projectId = "PROJECT_ID";
String sourceDatasetName = "BIGQUERY_SOURCE_DATASET_NAME";
String userDatasetName = "BIGQUERY_USER_DATASET_NAME";
authorizeDataset(
DatasetId.of(projectId, sourceDatasetName), DatasetId.of(projectId, userDatasetName));
}
// This method will update userDataset's ACL with sourceDataset's ACL
public static void authorizeDataset(DatasetId sourceDatasetId, DatasetId userDatasetId) {
try {
// Initialize client that will be used to send requests. This client only needs to be created
// once, and can be reused for multiple requests.
BigQuery bigquery = BigQueryOptions.getDefaultInstance().getService();
// Get both source and user dataset's references
Dataset sourceDataset = bigquery.getDataset(sourceDatasetId);
Dataset userDataset = bigquery.getDataset(userDatasetId);
// Get the source dataset's ACL
List<Acl> sourceDatasetAcl = new ArrayList<>(sourceDataset.getAcl());
// Add the user dataset's DatasetAccessEntry object to the existing sourceDatasetAcl
List<String> targetTypes = ImmutableList.of("VIEWS");
Acl.DatasetAclEntity userDatasetAclEntity =
new Acl.DatasetAclEntity(userDatasetId, targetTypes);
sourceDatasetAcl.add(Acl.of(userDatasetAclEntity));
// update the user dataset with source dataset's ACL
Dataset updatedUserDataset =
userDataset.toBuilder().setAcl(sourceDatasetAcl).build().update();
System.out.printf(
"Dataset %s updated with the added authorization\n", updatedUserDataset.getDatasetId());
} catch (BigQueryException e) {
System.out.println("Dataset Authorization failed due to error: \n" + e);
}
}
}
Nächste Schritte
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