Trạng thái báo cáo cuộc thăm dò ý kiến

Hiển thị và Báo cáo Video 360 không được tạo ngay lập tức. Hiển thị và Video 360 có thể mất nhiều phút đến hơn một giờ để tạo tệp báo cáo.

Để xác định xem truy vấn của bạn đã chạy xong hay chưa, hãy thường xuyên truy xuất báo cáo bằng cách sử dụng queries.reports.get, sau đó kiểm tra xem tài nguyên có phải Trường metadata.status.state đã được cập nhật thành DONE hoặc FAILED. Quá trình này được gọi là "thăm dò ý kiến".

Việc kiểm tra việc triển khai thăm dò ý kiến trên báo cáo chạy trong thời gian dài không hiệu quả sẽ gây tốn rất nhiều hạn mức yêu cầu API. Để hạn chế số lần thử lại và tiết kiệm hạn mức, sử dụng thuật toán thời gian đợi luỹ thừa.

Dưới đây là cách thăm dò một báo cáo bằng thuật toán thời gian đợi luỹ thừa:

Java

//This example the following import.
import com.google.api.client.util.ExponentialBackOff;

// The ID of the parent query.
Long queryId = query-id;

// The ID of the running report.
Long reportId = report-id;

// Minimum amount of time between polling requests. Defaults to 5 seconds.
final int MIN_RETRY_INTERVAL_IN_MILLIS = 5_000;

// Maximum amount of time between polling requests. Defaults to 5 minutes.
final int MAX_RETRY_INTERVAL_IN_MILLIS = 5 * 60_000;

// Maximum amount of time to spend polling. Defaults to 5 hours.
final int MAX_RETRY_ELAPSED_TIME_IN_MILLIS = 5 * 60 * 60_000;

// Configure reports.get request.
Reports.Get reportGetRequest =
    service.queries().reports().get(queryId, reportId);

// Get initial report object.
Report report = reportGetRequest.execute();

// Configure exponential backoff for checking the status of our report.
ExponentialBackOff backOff =
    new ExponentialBackOff.Builder()
        .setInitialIntervalMillis(MIN_RETRY_INTERVAL_IN_MILLIS)
        .setMaxIntervalMillis(MAX_RETRY_INTERVAL_IN_MILLIS)
        .setMaxElapsedTimeMillis(MAX_RETRY_ELAPSED_TIME_IN_MILLIS)
        .build();

// Poll report while it is running.
while (!report.getMetadata().getStatus().getState().equals("DONE")
    && !report.getMetadata().getStatus().getState().equals("FAILED")) {
  long backoffMillis = backOff.nextBackOffMillis();
  if (backoffMillis == ExponentialBackOff.STOP) {
    break;
  }
  System.out.printf(
      "Report %s still running, sleeping for %s seconds.%n",
      reportId,
      backoffMillis / 1000);
  Thread.sleep(backoffMillis);

  // Get current status of operation.
  report = reportGetRequest.execute();
}

// Print the result of the report generation.
if (report.getMetadata().getStatus().getState().equals("DONE")) {
  System.out.printf(
      "Report %s was successfully generated.%n",
      report.getKey().getReportId());
} else if (report.getMetadata().getStatus().getState().equals("FAILED")) {
  System.out.printf(
      "Report %s finished in error.%n",
      report.getKey().getReportId());
} else {
  System.out.println("Report generation deadline exceeded.");
}

Python

# The ID of the parent query.
query_id = query-id

# The ID of the report.
report_id = report-id

# The following values control retry behavior while
# the report is processing.
# Minimum amount of time between polling requests. Defaults to 5 seconds.
min_retry_interval = 5
# Maximum amount of time between polling requests. Defaults to 5 minutes.
max_retry_interval = 5 * 60
# Maximum amount of time to spend polling. Defaults to 5 hours.
max_retry_elapsed_time = 5 * 60 * 60

# Configure the queries.reports.get request.
get_request = service.queries().reports().get(
    queryId=query_id,reportId=report_id)

sleep = 0

# Poll report while it is running.
start_time = time.time()
while True:
  # Get current status of the report
  report = get_request.execute()

  # Print status if report is finished or deadline is exceeded.
  if report["metadata"]["status"]["state"] == "DONE":
    print(f'Report {report["key"]["reportId"]} was successfully generated.')
    break
  elif report["metadata"]["status"]["state"] == "FAILED":
    print(f'Report {report["key"]["reportId"]} finished in error.')
    break
  elif time.time() - start_time > max_retry_elapsed_time:
    print("Report generation deadline exceeded.")
    break

  sleep = next_sleep_interval(sleep)
  print(
    f'Report {report["key"]["reportId"]} still running, sleeping for '
    f'{sleep} seconds.')
  time.sleep(sleep)

def next_sleep_interval(previous_sleep_interval):
  """Calculates the next sleep interval based on the previous."""
  min_interval = previous_sleep_interval or min_retry_interval
  max_interval = previous_sleep_interval * 3 or min_retry_interval
  return min(
      max_retry_interval, random.randint(min_interval, max_interval))

PHP

// The ID of the parent query.
$queryId = query-id;

// The ID of the running report.
$reportId = report-id;

// Minimum amount of time between polling requests. Defaults to 5 seconds.
$minRetryInterval = 5;
// Maximum amount of time between polling requests. Defaults to 5 minutes.
$maxRetryInterval = 300;
// Maximum amount of time to spend polling. Defaults to 5 hours.
$maxRetryElapsedTime = 18000;

$sleepInterval = 0;
$startTime = time();

// Get initial report object.
$report = $this->service->queries_reports->get($queryId, $reportId);

// Regularly poll report status using exponential backoff.
while (
    $report->getMetadata()->getStatus()->getState() !== "DONE"
    && $report->getMetadata()->getStatus()->getState() !== "FAILED"
) {

    // If the operation has exceeded the set deadline, throw an exception.
    if (time() - $startTime > $maxRetryElapsedTime) {
        printf('SDF download task processing deadline exceeded\n');
        break;
    }

    // Generate the next sleep interval using exponential backoff logic.
    $sleepInterval = min(
        $maxRetryInterval,
        rand(
            max($minRetryInterval, $sleepInterval),
            max($minRetryInterval, $sleepInterval * 3)
        )
    );

    // Sleep before retrieving the report again.
    printf(
        'Report is %d still running, sleeping for %d seconds<br>',
        $reportId,
        $sleepInterval
    );
    sleep($sleepInterval);

    // Retrieve the report.
    $report = $this->service->queries_reports->get($queryId, $reportId);
}

// Print the result of the report generation.
if($report->getMetadata()->getStatus()->getState() == "DONE") {
    printf('Report %d was successfully generated.<br>', $reportId);
} else if($report->getMetadata()->getStatus()->getState() == "FAILED") {
    printf('Report %d finished in error.<br>', $reportId);
} else {
    print('Report generation deadline exceeded.<br>');
}