public void purgeUrl(CdnClient client) {
        String domain = "my.test.com";
        PurgeRequest request = new PurgeRequest()
                .addTask(new PurgeTask().withUrl("http://" + domain + "/url"))
                .addTask(new PurgeTask().withDirectory("http://" + domain + "/directory/"));
        PurgeResponse purgeResponse = client.purge(request);
        System.out.println(purgeResponse);
        // 根据任务id查询刷新结果
        GetPurgeStatusResponse purgeStatusResponse = client.getPurgeStatus(
                 new GetPurgeStatusRequest().withId(purgeResponse.getId()));
        System.out.println(purgeStatusResponse);
    }

    public void testGetPurgeStatus(CdnClient client) {
        String id = "eJwNyMERABAMBMCKMnPicH5aiQz9l8A";
        GetPurgeStatusRequest request = new GetPurgeStatusRequest().withId(id);
        GetPurgeStatusResponse response = cdnClient.getPurgeStatus(request);
        System.out.println(response);
    }

    public void getCacheQuota(CdnClient client) {
        GetCacheQuotaResponse response = cdnClient.getCacheQuota();
        System.out.println(response);
    }

    public void prefetchUrl(CdnClient client) {
        String domain = "my.test.com";
        
        // 用法1
        PrefetchRequest request = new PrefetchRequest()
                .addTask(new PrefetchTask().withUrl("http://" + domain + "/url"));
        PrefetchResponse prefetchResponse = client.prefetch(request);
        System.out.println(prefetchResponse);
        
        // 用法2
        PrefetchResponse prefetchResponse = client.prefetch("http://" + domain + "/url");     
        System.out.println(prefetchResponse);
    }

    public void testGetPrefetchStatus(CdnClient client) {
        String id = "eJwNyMERABAMBMCKMnPicH5aiQz9l8A";
        GetPrefetchStatusResponse response = cdnClient.getPrefetchStatus(
                new GetPrefetchStatusRequest().withId(id));
        System.out.println(response);
    }