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// Create the filter structure
ParentEntityFilter parentEntityFilter = new ParentEntityFilter();
parentEntityFilter.setFileType(sdf-file-type-list);
parentEntityFilter.setFilterType(sdfFilterType);
parentEntityFilter.setFilterIds(filter-id-list);

// Configure the sdfdownloadtasks.create request
Sdfdownloadtasks.Create request =
   service
       .sdfdownloadtasks()
       .create(
           new CreateSdfDownloadTaskRequest()
               .setVersion(sdfVersion)
               .setAdvertiserId(advertiserId)
               .setParentEntityFilter(parentEntityFilter)
       );

// Create the sdfdownloadtask
Operation operationResponse = request.execute();

System.out.printf("Operation %s was created.\n",
   operationResponse.getName());

# Configure the sdfdownloadtasks.create request
createSdfDownloadTaskRequest = {
    'version': sdf-version,
    'advertiserId': advertiser-id,
    'parentEntityFilter': {
        'fileType': sdf-file-type-list,
        'filterType': sdf-filter-type,
        'filterIds': filter-id-list
    }
}

# Create the sdfdownloadtask
operation = service.sdfdownloadtasks().create(
    body=createSdfDownloadTaskRequest).execute();

print("Operation %s was created." % operation["name"])

// Create the sdfdownloadtasks.create request structure
$createSdfDownloadTaskRequest =
    new Google_Service_DisplayVideo_CreateSdfDownloadTaskRequest();
$createSdfDownloadTaskRequest->setAdvertiserId(advertiser-id);
$createSdfDownloadTaskRequest->setVersion(sdf-version);

// Create and set the parent entity filter
$parentEntityFilter = new Google_Service_DisplayVideo_ParentEntityFilter();
$parentEntityFilter->setFileType(sdf-file-type-list);
$parentEntityFilter->setFilterType(sdf-filter-type);
if (!empty(filter-id-list)) {
    $parentEntityFilter->setFilterIds(filter-id-list);
}
$createSdfDownloadTaskRequest->setParentEntityFilter($parentEntityFilter);

// Call the API, creating the SDF Download Task.
$operation = $this->service->sdfdownloadtasks->create(
    $createSdfDownloadTaskRequest
);

printf('Operation %s was created.\n', $operation->getName());

String operationName = operationResponse.getName();

// Configure the Operations.get request
Sdfdownloadtasks.Operations.Get operationRequest =
   service
       .sdfdownloadtasks()
       .operations()
       .get(operationName);

// Configure exponential backoff for checking the status of our operation
ExponentialBackOff backOff = new ExponentialBackOff.Builder()
   .setInitialIntervalMillis(5000) // setting initial interval to five seconds
   .setMaxIntervalMillis(300000)  // setting max interval to five minutes
   .setMaxElapsedTimeMillis(18000000) // setting max elapsed time to five hours
   .build();

while (operationResponse.getDone() == null) {
 long backoffMillis = backOff.nextBackOffMillis();
 if (backoffMillis == ExponentialBackOff.STOP) {
   System.out.printf("The operation has taken more than five hours to
       complete.\n");
   return;
 }
 Thread.sleep(backoffMillis);

 // Get current status of operation
 operationResponse = operationRequest.execute();
}

// Check if the operation finished with an error and return
if (operationResponse.getError() != null) {
 System.out.printf("The operation finished in error with code %s: %s\n",
     operationResponse.getError().getCode(), operationResponse.getError()
         .getMessage());
 return;
}

System.out.printf(
    "The operation completed successfully. Resource %s was created.\n",
    operationResponse.getResponse().get("resourceName").toString());

# 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 Operations.get request
get_request = service.sdfdownloadtasks().operations().get(
  name=operation["name"]
)

sleep = 0
start_time = time.time()
while True:
  # Get current status of operation
  operation = get_request.execute()

  if "done" in operation:
    if "error" in operation:
      print("The operation finished in error with code %s: %s" % (
            operation["error"]["code"],
            operation["error"]["message"]))
    else:
      print("The operation completed successfully. Resource %s was created."
            % operation["response"]["resourceName"])
    break
  elif time.time() - start_time > max_retry_elapsed_time:
    print("Generation deadline exceeded.")

  sleep = next_sleep_interval(sleep)
  print("Operation still running, sleeping for %d seconds." % sleep)
  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))

// The following values control retry behavior
// while the task is processing.
// 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;

$operationName = $operation->getName();

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

while (!$operation->getDone()) {
    if ($sleepInterval != 0) {
        printf(
            'The operation is still running, sleeping for %d seconds\n',
            $sleepInterval
        );
    }

    // Sleep before retrieving the SDF Download Task again.
    sleep($sleepInterval);

    // Call the API, retrieving the SDF Download Task.
    $operation = $this->service->sdfdownloadtasks_operations->get(
        $operation->getName()
    );

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

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

// If the operation finished with an error, throw an exception.
if($operation->getError() !== null) {
    $error = $operation->getError();
    printf(
        'The operation finished in error with code %s: %s\n',
        $error->getCode(),
        $error->getMessage()
    );
    throw new Exception($error->getMessage());
}

// Print successfully generated resource.
$response = $operation->getResponse();
printf(
    'The operation completed successfully. Resource %s was '
        . 'created. Ready to download.\n',
    $response['resourceName']
);