如何在Java中查询kubelet指标API？

import io.kubernetes.client.openapi.ApiClient;
import io.kubernetes.client.openapi.ApiException;
import io.kubernetes.client.openapi.Configuration;
import io.kubernetes.client.openapi.apis.CoreV1Api;
import io.kubernetes.client.openapi.models.V1Node;
import io.kubernetes.client.util.Config;

public class KubeletMetricsQuery {

    public static void main(String[] args) {
        try {
            // 创建一个ApiClient实例，用于与Kubernetes集群通信
            ApiClient client = Config.defaultClient();
            Configuration.setDefaultApiClient(client);

            // 创建一个CoreV1Api实例，用于执行Kubernetes API操作
            CoreV1Api api = new CoreV1Api();

            // 查询所有节点的信息
            V1Node node = api.readNode("your-node-name", null, null, null);

            // 获取节点的kubelet指标
            String kubeletEndpoint = node.getStatus().getAddresses().stream()
                    .filter(address -> address.getType().equals("InternalIP"))
                    .findFirst()
                    .map(address -> "https://" + address.getAddress() + ":10250")
                    .orElseThrow(() -> new RuntimeException("Failed to get kubelet endpoint"));

            // 发起HTTP请求获取kubelet指标数据
            String metricsUrl = kubeletEndpoint + "/metrics";
            String metricsData = client.getHttpClient().newCall(client.getHttpClient().newRequestBuilder()
                    .get()
                    .url(metricsUrl)
                    .build())
                    .execute()
                    .body()
                    .string();

            // 处理kubelet指标数据
            System.out.println(metricsData);
        } catch (ApiException | IOException e) {
            e.printStackTrace();
        }
    }
}