public static async Task Run(GeotabDataOnlyPlanAPI api)
{
ConsoleUtility.LogExampleStarted(typeof(GetFeedDriverChangeAsyncExample).Name);
try
{
// Feed parameters.
// See MyGeotab SDK <a href="https://geotab.github.io/sdk/software/guides/concepts/#result-limits">Result Limits</a> and <a href="https://geotab.github.io/sdk/software/api/reference/#M:Geotab.Checkmate.Database.DataStore.GetFeed1">GetFeed()</a> documentation for information about the feed result limit defined below.
const int DefaultFeedResultsLimitDriverChange = 50000;
int getFeedNumberOfCallsToMake = 5;
int getFeedSecondsToWaitBetweenCalls = 5;
long? feedVersion = 0;
List <DriverChange> driverChangeCache = new List <DriverChange>();
FeedResult <DriverChange> feedResult;
// Start by populating the driverChangeCache with a list of all driverChanges.
ConsoleUtility.LogListItem($"Population of driverChangeCache started.");
bool isFirstCall = true;
bool keepGoing = true;
while (keepGoing == true)
{
feedResult = await api.GetFeedDriverChangeAsync(feedVersion);
feedVersion = feedResult.ToVersion;
ConsoleUtility.LogListItem("GetFeedDriverChangeAsync executed:");
ConsoleUtility.LogListItem("FeedResult ToVersion:", feedVersion.ToString(), Common.ConsoleColorForUnchangedData, Common.ConsoleColorForSuccess);
ConsoleUtility.LogListItem("FeedResult Records:", feedResult.Data.Count.ToString(), Common.ConsoleColorForUnchangedData, Common.ConsoleColorForSuccess);
if (isFirstCall == true)
{
driverChangeCache.AddRange(feedResult.Data);
isFirstCall = false;
}
else
{
// Add new items to the cache, or update existing items with their changed counterparts.
foreach (DriverChange feedResultDriverChange in feedResult.Data)
{
DriverChange cachedDriverChangeToUpdate = driverChangeCache.Where(driverChange => driverChange.Id == feedResultDriverChange.Id).FirstOrDefault();
if (cachedDriverChangeToUpdate == null)
{
driverChangeCache.Add(feedResultDriverChange);
}
else
{
var index = driverChangeCache.IndexOf(cachedDriverChangeToUpdate);
driverChangeCache[index] = feedResultDriverChange;
}
}
}
if (feedResult.Data.Count < DefaultFeedResultsLimitDriverChange)
{
keepGoing = false;
}
}
ConsoleUtility.LogListItem($"Population of driverChangeCache completed.");
// Execute a GetFeed loop for the prescribed number of iterations, adding new items to the cache, or updating existing items with their changed counterparts.
for (int getFeedCallNumber = 1; getFeedCallNumber < getFeedNumberOfCallsToMake + 1; getFeedCallNumber++)
{
feedResult = await api.GetFeedDriverChangeAsync(feedVersion);
feedVersion = feedResult.ToVersion;
ConsoleUtility.LogListItem("GetFeedDriverChangeAsync executed. Iteration:", getFeedCallNumber.ToString(), Common.ConsoleColorForUnchangedData, Common.ConsoleColorForSuccess);
ConsoleUtility.LogListItem("FeedResult ToVersion:", feedVersion.ToString(), Common.ConsoleColorForUnchangedData, Common.ConsoleColorForSuccess);
ConsoleUtility.LogListItem("FeedResult Records:", feedResult.Data.Count.ToString(), Common.ConsoleColorForUnchangedData, Common.ConsoleColorForSuccess);
// Add new items to the cache, or update existing items with their changed counterparts.
foreach (DriverChange feedResultDriverChange in feedResult.Data)
{
DriverChange cachedDriverChangeToUpdate = driverChangeCache.Where(driverChange => driverChange.Id == feedResultDriverChange.Id).FirstOrDefault();
if (cachedDriverChangeToUpdate == null)
{
driverChangeCache.Add(feedResultDriverChange);
}
else
{
var index = driverChangeCache.IndexOf(cachedDriverChangeToUpdate);
driverChangeCache[index] = feedResultDriverChange;
}
}
// Wait for the prescribed amount of time before making the next GetFeed call.
Thread.Sleep(getFeedSecondsToWaitBetweenCalls * 1000);
}
}
catch (Exception ex)
{
ConsoleUtility.LogError(ex);
}
ConsoleUtility.LogExampleFinished(typeof(GetFeedDriverChangeAsyncExample).Name);
}