chore(samples): Add samples for Cloud Spanner Default Backup Schedules (

#3450)

* chore(samples): Add samples for Cloud Spanner Default Backup Schedules

* chore(samples): Add samples for Cloud Spanner Default Backup Schedules

* chore(samples): Add samples for Cloud Spanner Default Backup Schedules.
Adding `s` to create instance sample class name

* chore(samples): Add samples for Cloud Spanner Default Backup Schedules.
Adding `s` to create instance sample class name

samples/snippets/src/main/java/com/example/spanner/CreateInstanceWithoutDefaultBackupSchedulesExample.java

@@ -0,0 +1,77 @@
+/*
+ * Copyright 2024 Google LLC
+ *
+ * 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_create_instance_without_default_backup_schedule]
+
+import com.google.cloud.spanner.Spanner;
+import com.google.cloud.spanner.SpannerOptions;
+import com.google.cloud.spanner.admin.instance.v1.InstanceAdminClient;
+import com.google.spanner.admin.instance.v1.CreateInstanceRequest;
+import com.google.spanner.admin.instance.v1.Instance;
+import com.google.spanner.admin.instance.v1.InstanceConfigName;
+import com.google.spanner.admin.instance.v1.ProjectName;
+import java.util.concurrent.ExecutionException;
+
+class CreateInstanceWithoutDefaultBackupSchedulesExample {
+
+  static void createInstanceWithoutDefaultBackupSchedules() {
+    // TODO(developer): Replace these variables before running the sample.
+    String projectId = "my-project";
+    String instanceId = "my-instance";
+    createInstanceWithoutDefaultBackupSchedules(projectId, instanceId);
+  }
+
+  static void createInstanceWithoutDefaultBackupSchedules(String projectId, String instanceId) {
+    // Set Instance configuration.
+    int nodeCount = 2;
+    String displayName = "Descriptive name";
+
+    // Create an Instance object that will be used to create the instance.
+    Instance instance =
+        Instance.newBuilder()
+            .setDisplayName(displayName)
+            .setDefaultBackupScheduleType(Instance.DefaultBackupScheduleType.NONE)
+            .setNodeCount(nodeCount)
+            .setConfig(InstanceConfigName.of(projectId, "regional-us-east4").toString())
+            .build();
+
+    try (Spanner spanner =
+            SpannerOptions.newBuilder().setProjectId(projectId).build().getService();
+        InstanceAdminClient instanceAdminClient = spanner.createInstanceAdminClient()) {
+
+      // Wait for the createInstance operation to finish.
+      Instance createdInstance =
+          instanceAdminClient
+              .createInstanceAsync(
+                  CreateInstanceRequest.newBuilder()
+                      .setParent(ProjectName.of(projectId).toString())
+                      .setInstanceId(instanceId)
+                      .setInstance(instance)
+                      .build())
+              .get();
+      System.out.printf("Instance %s was successfully created%n", createdInstance.getName());
+    } catch (ExecutionException e) {
+      System.out.printf(
+          "Error: Creating instance %s failed with error message %s%n",
+          instance.getName(), e.getMessage());
+    } catch (InterruptedException e) {
+      System.out.println("Error: Waiting for createInstance operation to finish was interrupted");
+    }
+  }
+}
+// [END spanner_create_instance_without_default_backup_schedule]

samples/snippets/src/main/java/com/example/spanner/UpdateInstanceDefaultBackupScheduleTypeExample.java

@@ -0,0 +1,82 @@
+/*
+ * Copyright 2024 Google LLC
+ *
+ * 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_update_instance_default_backup_schedule_type]
+
+import com.google.cloud.spanner.Spanner;
+import com.google.cloud.spanner.SpannerOptions;
+import com.google.cloud.spanner.admin.instance.v1.InstanceAdminClient;
+import com.google.common.collect.Lists;
+import com.google.protobuf.FieldMask;
+import com.google.spanner.admin.instance.v1.Instance;
+import com.google.spanner.admin.instance.v1.InstanceConfigName;
+import com.google.spanner.admin.instance.v1.InstanceName;
+import com.google.spanner.admin.instance.v1.UpdateInstanceRequest;
+import java.util.concurrent.ExecutionException;
+
+public class UpdateInstanceDefaultBackupScheduleTypeExample {
+
+  static void updateInstanceDefaultBackupScheduleType() {
+    // TODO(developer): Replace these variables before running the sample.
+    String projectId = "my-project";
+    String instanceId = "my-instance";
+    updateInstanceDefaultBackupScheduleType(projectId, instanceId);
+  }
+
+  static void updateInstanceDefaultBackupScheduleType(String projectId, String instanceId) {
+    // Set Instance configuration.
+    int nodeCount = 2;
+    String displayName = "Updated name";
+
+    // Update an Instance object that will be used to update the instance.
+    Instance instance =
+        Instance.newBuilder()
+            .setName(InstanceName.of(projectId, instanceId).toString())
+            .setDisplayName(displayName)
+            .setNodeCount(nodeCount)
+            .setDefaultBackupScheduleType(Instance.DefaultBackupScheduleType.AUTOMATIC)
+            .setConfig(InstanceConfigName.of(projectId, "regional-us-east4").toString())
+            .build();
+
+    try (Spanner spanner =
+            SpannerOptions.newBuilder().setProjectId(projectId).build().getService();
+        InstanceAdminClient instanceAdminClient = spanner.createInstanceAdminClient()) {
+
+      // Wait for the updatedInstance operation to finish.
+      Instance updatedInstance =
+          instanceAdminClient
+              .updateInstanceAsync(
+                  UpdateInstanceRequest.newBuilder()
+                      .setFieldMask(
+                          FieldMask.newBuilder()
+                              .addAllPaths(Lists.newArrayList("default_backup_schedule_type")))
+                      .setInstance(instance)
+                      .build())
+              .get();
+      System.out.printf("Instance %s was successfully updated%n", updatedInstance.getName());
+    } catch (ExecutionException e) {
+      System.out.printf(
+          "Error: Updating instance %s failed with error message %s%n",
+          instance.getName(), e.getMessage());
+    } catch (InterruptedException e) {
+      System.out.println("Error: Waiting for updateInstance operation to finish was interrupted");
+    }
+  }
+}
+
+// [END spanner_update_instance_default_backup_schedule_type]

samples/snippets/src/test/java/com/example/spanner/SpannerSampleIT.java

@@ -692,6 +692,38 @@ public void testCreateAndUpdateInstanceSample() {
                 InstanceId.of(dbId.getInstanceId().getProject(), instanceId)));
   }
 
+  @Test
+  public void testCreateAndUpdateInstanceDefaultBackupScheduleTypeSample() {
+    String databaseId = idGenerator.generateDatabaseId();
+    DatabaseId dbId = DatabaseId.of(projectId, instanceId, databaseId);
+
+    String instanceId = formatForTest("sample-inst");
+    String out =
+        runSampleRunnable(
+            () -> {
+              try {
+                CreateInstanceWithoutDefaultBackupSchedulesExample
+                    .createInstanceWithoutDefaultBackupSchedules(
+                        dbId.getInstanceId().getProject(), instanceId);
+                UpdateInstanceDefaultBackupScheduleTypeExample
+                    .updateInstanceDefaultBackupScheduleType(
+                        dbId.getInstanceId().getProject(), instanceId);
+              } finally {
+                spanner.getInstanceAdminClient().deleteInstance(instanceId);
+              }
+            });
+    assertThat(out)
+        .contains(
+            String.format(
+                "Instance %s was successfully created",
+                InstanceId.of(dbId.getInstanceId().getProject(), instanceId)));
+    assertThat(out)
+        .contains(
+            String.format(
+                "Instance %s was successfully updated",
+                InstanceId.of(dbId.getInstanceId().getProject(), instanceId)));
+  }
+
   private static int countOccurrences(String input, String search) {
     return input.split(search).length - 1;
   }