感知中断事件与响应

import com.aliyun.ecs20140526.Client;
import com.aliyun.ecs20140526.models.DescribeInstancesRequest;
import com.aliyun.ecs20140526.models.DescribeInstancesResponse;
import com.aliyun.ecs20140526.models.DescribeInstancesResponseBody;
import com.aliyun.tea.TeaException;
import com.aliyun.tea.TeaUnretryableException;
import com.aliyun.teaopenapi.models.Config;
import com.aliyun.teautil.models.RuntimeOptions;
import com.alibaba.fastjson.JSONArray;

import java.util.Arrays;

public class Sample {
    private static Client createClient() throws Exception {
        Config config = new Config()
                // 必填，请确保代码运行环境设置了环境变量 ALIBABA_CLOUD_ACCESS_KEY_ID。
                .setAccessKeyId(System.getenv("ALIBABA_CLOUD_ACCESS_KEY_ID"))
                // 必填，请确保代码运行环境设置了环境变量 ALIBABA_CLOUD_ACCESS_KEY_SECRET。
                .setAccessKeySecret(System.getenv("ALIBABA_CLOUD_ACCESS_KEY_SECRET"))
                // Endpoint 请参考 https://api.aliyun.com/product/Ecs
                .setEndpoint("ecs.cn-hangzhou.aliyuncs.com");
        return new Client(config);
    }

    public static void main(String[] args) {
        try {
            Client client = Sample.createClient();
            // 构造请求对象
            // 设置待查询的一个或多个ECS实例ID。
            JSONArray instanceIds = new JSONArray();
            instanceIds.addAll(Arrays.asList("i-bp145cvd0exyqj****","i-bp1gehfgfrrk4lah****"));
            DescribeInstancesRequest request = new DescribeInstancesRequest()
                    .setRegionId("cn-hangzhou")
                    .setInstanceIds(instanceIds.toJSONString());
            // 设置运行时参数
            RuntimeOptions runtime = new RuntimeOptions();
            while (!instanceIds.isEmpty()) {
              // 调用 DescribeInstances 接口
              DescribeInstancesResponse response = client.describeInstancesWithOptions(request, runtime);
              // 获取实例相关的返回结果。
              DescribeInstancesResponseBody responseBody = response.getBody();
              DescribeInstancesResponseBody.DescribeInstancesResponseBodyInstances instanceList = responseBody.getInstances();
              //获取实例信息，并根据lockReason返回值进行判断
              if (instanceList != null && instanceList.getInstance()!= null && !instanceList.getInstance().isEmpty()) {
                  for (DescribeInstancesResponseBody.DescribeInstancesResponseBodyInstancesInstance instance : instanceList.getInstance()) {
                      // 输出被查询的实例ID与可用区信息。
                      System.out.println("result:instance:" + instance.getInstanceId() + ",az:" + instance.getZoneId());
                      if (instance.getOperationLocks() != null ) {
                          DescribeInstancesResponseBody.DescribeInstancesResponseBodyInstancesInstanceOperationLocks operationLocks  = instance.getOperationLocks();
                          if(operationLocks.getLockReason()!=null && !operationLocks.getLockReason().isEmpty()){
                              for (DescribeInstancesResponseBody.DescribeInstancesResponseBodyInstancesInstanceOperationLocksLockReason lockReason : operationLocks.getLockReason()) {
                                  // 如果实例被锁定，输出指定实例ID以及对应的锁定类型。
                                  System.out.println("instance:" + instance.getInstanceId() + "-->lockReason:" + lockReason.getLockReason() + ",vmStatus:" + instance.getStatus());
                                  if ("Recycling".equals(lockReason.getLockReason())) {
                                      // 输出即将被回收的实例ID信息。
                                      System.out.println("spot instance will be recycled immediately, instance id:" + instance.getInstanceId());
                                      instanceIds.remove(instance.getInstanceId());
                                  }
                              }
                          }

                      }
                  }
                  // 如果抢占式实例还未被锁定，将每隔两分钟查询一次。
                  System.out.print("try describeInstances again later ...");
                  Thread.sleep(2 * 60 * 1000);
              } else {
                  break;
              }
            }
        } catch (TeaUnretryableException ue) {
            // 此处仅做打印展示，请谨慎对待异常处理，在工程项目中切勿直接忽略异常。
            ue.printStackTrace();
            // 打印错误信息
            System.out.println(ue.getMessage());
            // 打印请求记录，查询错误发生时的请求信息
            System.out.println(ue.getLastRequest());
        } catch (TeaException e) {
            // 此处仅做打印展示，请谨慎对待异常处理，在工程项目中切勿直接忽略异常。
            e.printStackTrace();
            // 打印错误码
            System.out.println(e.getCode());
            // 打印错误信息，错误信息中包含 RequestId
            System.out.println(e.getMessage());
            // 打印服务端返回的具体错误内容
            System.out.println(e.getData());
        } catch (Exception e) {
            // 此处仅做打印展示，请谨慎对待异常处理，在工程项目中切勿直接忽略异常。
            e.printStackTrace();
        }
    }
}