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feat: Add java sample for managed autoscaler (#2709)
Add java sample for managed autoscaler. See the support for autoscaler here: https://togithub.com/claire921/java-spanner/pull/1/commits/e5e6923a351670ab237c411bb4a549533dac1b6b.
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84 changes: 84 additions & 0 deletions
84
...nippets/src/main/java/com/example/spanner/CreateInstanceWithAutoscalingConfigExample.java
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| /* | ||
| * Copyright 2023 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. | ||
| */ | ||
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| package com.example.spanner; | ||
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| // [START spanner_create_instance_with_autoscaling_config] | ||
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| import com.google.api.gax.longrunning.OperationFuture; | ||
| import com.google.cloud.spanner.Instance; | ||
| import com.google.cloud.spanner.InstanceAdminClient; | ||
| import com.google.cloud.spanner.InstanceConfigId; | ||
| import com.google.cloud.spanner.InstanceId; | ||
| import com.google.cloud.spanner.InstanceInfo; | ||
| import com.google.cloud.spanner.Spanner; | ||
| import com.google.cloud.spanner.SpannerOptions; | ||
| import com.google.spanner.admin.instance.v1.AutoscalingConfig; | ||
| import com.google.spanner.admin.instance.v1.CreateInstanceMetadata; | ||
| import java.util.concurrent.ExecutionException; | ||
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| class CreateInstanceWithAutoscalingConfigExample { | ||
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| static void createInstance() { | ||
| // TODO(developer): Replace these variables before running the sample. | ||
| String projectId = "my-project"; | ||
| String instanceId = "my-instance"; | ||
| createInstance(projectId, instanceId); | ||
| } | ||
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| static void createInstance(String projectId, String instanceId) { | ||
| Spanner spanner = SpannerOptions.newBuilder().setProjectId(projectId).build().getService(); | ||
| InstanceAdminClient instanceAdminClient = spanner.getInstanceAdminClient(); | ||
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| // Set Instance configuration. | ||
| String configId = "regional-us-central1"; | ||
| // Create an autoscaling config. | ||
| AutoscalingConfig autoscalingConfig = | ||
| AutoscalingConfig.newBuilder() | ||
| .setAutoscalingLimits( | ||
| AutoscalingConfig.AutoscalingLimits.newBuilder().setMinNodes(1).setMaxNodes(2)) | ||
| .setAutoscalingTargets( | ||
| AutoscalingConfig.AutoscalingTargets.newBuilder() | ||
| .setHighPriorityCpuUtilizationPercent(65) | ||
| .setStorageUtilizationPercent(95)) | ||
| .build(); | ||
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| // Create an InstanceInfo object that will be used to create the instance. | ||
| InstanceInfo instanceInfo = | ||
| InstanceInfo.newBuilder(InstanceId.of(projectId, instanceId)) | ||
| .setInstanceConfigId(InstanceConfigId.of(projectId, configId)) | ||
| .setAutoscalingConfig(autoscalingConfig) | ||
| .setDisplayName("Descriptive name") | ||
| .build(); | ||
| OperationFuture<Instance, CreateInstanceMetadata> operation = | ||
| instanceAdminClient.createInstance(instanceInfo); | ||
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| try { | ||
| // Wait for the createInstance operation to finish. | ||
| Instance instance = operation.get(); | ||
| System.out.printf("Autoscaler instance %s was successfully created%n", instance.getId()); | ||
| } catch (ExecutionException e) { | ||
| System.out.printf( | ||
| "Error: Creating instance %s failed with error message %s%n", | ||
| instanceInfo.getId(), e.getMessage()); | ||
| } catch (InterruptedException e) { | ||
| System.out.println("Error: Waiting for createInstance operation to finish was interrupted"); | ||
| } finally { | ||
| spanner.close(); | ||
| } | ||
| } | ||
| } | ||
| // [END spanner_create_instance_with_autoscaling_config] |
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...ippets/src/test/java/com/example/spanner/CreateInstanceWithAutoscalingConfigSampleIT.java
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| /* | ||
| * Copyright 2023 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. | ||
| */ | ||
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| package com.example.spanner; | ||
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| import static com.google.common.truth.Truth.assertThat; | ||
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| import com.google.cloud.spanner.InstanceId; | ||
| import java.util.UUID; | ||
| import org.junit.Test; | ||
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| public class CreateInstanceWithAutoscalingConfigSampleIT extends SampleTestBase { | ||
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| @Test | ||
| public void testCreateInstanceWithAutoscalingConfig() throws Exception { | ||
| String instanceId = String.format("autoscaler-%s", UUID.randomUUID()); | ||
| String out = | ||
| SampleRunner.runSample( | ||
| () -> { | ||
| try { | ||
| CreateInstanceWithAutoscalingConfigExample.createInstance(projectId, instanceId); | ||
| } finally { | ||
| spanner.getInstanceAdminClient().deleteInstance(instanceId); | ||
| } | ||
| }); | ||
| assertThat(out) | ||
| .contains(String.format("Autoscaler instance %s", InstanceId.of(projectId, instanceId))); | ||
| } | ||
| } |