/
AddAndDropDatabaseRole.java
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/
AddAndDropDatabaseRole.java
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/*
* Copyright 2022 Google Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.example.spanner;
// [START spanner_add_and_drop_database_role]
import com.google.cloud.spanner.Spanner;
import com.google.cloud.spanner.SpannerOptions;
import com.google.cloud.spanner.admin.database.v1.DatabaseAdminClient;
import com.google.common.collect.ImmutableList;
import com.google.spanner.admin.database.v1.DatabaseName;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
public class AddAndDropDatabaseRole {
static void addAndDropDatabaseRole() {
// TODO(developer): Replace these variables before running the sample.
String projectId = "my-project";
String instanceId = "my-instance";
String databaseId = "my-database";
String parentRole = "parent_role";
String childRole = "child_role";
addAndDropDatabaseRole(projectId, instanceId, databaseId, parentRole, childRole);
}
static void addAndDropDatabaseRole(
String projectId, String instanceId, String databaseId,
String parentRole, String childRole) {
try (Spanner spanner =
SpannerOptions.newBuilder()
.setProjectId(projectId)
.build()
.getService();
DatabaseAdminClient databaseAdminClient = spanner.createDatabaseAdminClient()) {
System.out.println("Waiting for role create operation to complete...");
databaseAdminClient.updateDatabaseDdlAsync(
DatabaseName.of(projectId, instanceId, databaseId),
ImmutableList.of(
String.format("CREATE ROLE %s", parentRole),
String.format("GRANT SELECT ON TABLE Albums TO ROLE %s", parentRole),
String.format("CREATE ROLE %s", childRole),
String.format("GRANT ROLE %s TO ROLE %s", parentRole, childRole)))
.get(5, TimeUnit.MINUTES);
System.out.printf(
"Created roles %s and %s and granted privileges%n", parentRole, childRole);
// Delete role and membership.
System.out.println("Waiting for role revoke & drop operation to complete...");
databaseAdminClient.updateDatabaseDdlAsync(
DatabaseName.of(projectId, instanceId, databaseId),
ImmutableList.of(
String.format("REVOKE ROLE %s FROM ROLE %s", parentRole, childRole),
String.format("DROP ROLE %s", childRole))).get(5, TimeUnit.MINUTES);
System.out.printf("Revoked privileges and dropped role %s%n", childRole);
} catch (ExecutionException | TimeoutException e) {
System.out.printf(
"Error: AddAndDropDatabaseRole failed with error message %s\n", e.getMessage());
e.printStackTrace();
} catch (InterruptedException e) {
System.out.println(
"Error: Waiting for AddAndDropDatabaseRole operation to finish was interrupted");
}
}
}
// [END spanner_add_and_drop_database_role]