/// <summary>
/// Processes the customer.
/// </summary>
/// <param name="user">The AdWords user.</param>
/// <param name="customerId">The customer ID.</param>
/// <param name="query">The report query.</param>
private void ProcessCustomer(AdWordsUser user, long customerId, string query)
{
// Set the customer ID to the current customer.
this.Config.ClientCustomerId = customerId.ToString();
string downloadFile = string.Format("{0}{1}adgroup_{2:D10}.gz", this.DownloadFolder,
Path.DirectorySeparatorChar, customerId);
// Download the report.
Console.WriteLine("[Thread #{0}]: Downloading report for customer: {1} into {2}...",
this.ThreadIndex, customerId, downloadFile);
try
{
ReportUtilities utilities = new ReportUtilities(user, "v201809", query,
DownloadFormat.GZIPPED_CSV.ToString());
using (ReportResponse response = utilities.GetResponse())
{
response.Save(downloadFile);
}
// Mark this report download as success.
SuccessfulReportDownload success = new SuccessfulReportDownload
{
CustomerId = customerId,
Path = downloadFile
};
SuccessfulReports.TryAdd(success);
Console.WriteLine("Report was downloaded to '{0}'.", downloadFile);
}
catch (AdWordsReportsException e)
{
// Mark this report download as failure.
FailedReportDownload failure = new FailedReportDownload
{
CustomerId = customerId,
Exception = e
};
FailedReports.TryAdd(failure);
Console.WriteLine(
"Failed to download report for customer: {0}. Exception says {1}",
customerId, e.Message);
}
}
/// <summary>
/// Runs the code example.
/// </summary>
/// <param name="user">The AdWords user.</param>
/// <param name="downloadFolder">The file to which the report is downloaded.
/// </param>
public void Run(AdWordsUser user, string downloadFolder)
{
// Increase the number of HTTP connections we can do in parallel.
System.Net.ServicePointManager.DefaultConnectionLimit = 100;
try {
// Start the rate limiter with an initial value of zero, so that all
// threads block immediately.
Semaphore rateLimiter = new Semaphore(0, MAX_REPORT_DOWNLOADS_IN_PARALLEL);
// Get all the advertiser accounts under this manager account.
List <long> allCustomerIds = GetDescendantAdvertiserAccounts(user);
// Create a concurrent queue of customers so that all threads can work
// on the collection in parallel.
ConcurrentQueue <long> customerQueue = new ConcurrentQueue <long>(allCustomerIds);
// Create queues to keep track of successful and failed report downloads.
ConcurrentQueue <SuccessfulReportDownload> reportsSucceeeded =
new ConcurrentQueue <SuccessfulReportDownload>();
ConcurrentQueue <FailedReportDownload> reportsFailed =
new ConcurrentQueue <FailedReportDownload>();
// Keep an array of events. This is used by the main thread to wait for
// all worker threads to join.
ManualResetEvent[] doneEvents = new ManualResetEvent[MAX_NUMBER_OF_THREADS];
// The list of threads to download reports.
Thread[] threads = new Thread[MAX_NUMBER_OF_THREADS];
// The data for each thread.
ReportDownloadData[] threadData = new ReportDownloadData[MAX_NUMBER_OF_THREADS];
// The query to be run on each account.
string query = "SELECT CampaignId, AdGroupId, Impressions, Clicks, Cost from " +
"ADGROUP_PERFORMANCE_REPORT where AdGroupStatus IN [ENABLED, PAUSED] " +
"DURING LAST_7_DAYS";
// Initialize the threads and their data.
for (int i = 0; i < MAX_NUMBER_OF_THREADS; i++)
{
doneEvents[i] = new ManualResetEvent(false);
threadData[i] = new ReportDownloadData()
{
Config = (AdWordsAppConfig)(user.Config.Clone()),
DownloadFolder = downloadFolder,
SignalEvent = doneEvents[i],
ThreadIndex = i,
QuotaLock = rateLimiter,
CustomerIdQueue = customerQueue,
SuccessfulReports = reportsSucceeeded,
FailedReports = reportsFailed
};
threads[i] = new Thread(threadData[i].ThreadCallback);
}
// Start the threads. Since the initial value of rate limiter is zero,
// all threads will block immediately.
for (int i = 0; i < threads.Length; i++)
{
threads[i].Start(query);
}
// Now reset the rate limiter so all threads can start downloading reports.
rateLimiter.Release(MAX_REPORT_DOWNLOADS_IN_PARALLEL);
// Wait for all threads in pool to complete.
WaitHandle.WaitAll(doneEvents);
Console.WriteLine("Download completed, results:");
Console.WriteLine("Successful reports:");
while (!reportsSucceeeded.IsEmpty)
{
SuccessfulReportDownload success = null;
if (reportsSucceeeded.TryDequeue(out success))
{
Console.WriteLine("Client ID: {0}, Path: {1}", success.CustomerId, success.Path);
}
}
Console.WriteLine("Failed reports:");
while (!reportsFailed.IsEmpty)
{
FailedReportDownload failure = null;
if (reportsFailed.TryDequeue(out failure))
{
Console.WriteLine("Client ID: {0}, Cause: {1}", failure.CustomerId,
failure.Exception.Message);
}
}
Console.WriteLine("All reports are downloaded.");
} catch (Exception e) {
throw new System.ApplicationException("Failed to download reports.", e);
}
}