private void LogBeforeReadingFromProvider(DateTime requestTime, int userId)
{
string msg = "[1]--Start reading image from source.".PadRight(84) +
" Request by UserId: " + userId.GetFormattedUserId() + " , at " +
DateTimeFormatter.ConvertTimeToCompactString(requestTime, true);
_logger?.LogCacheStat(msg, userId);
}
private void LogReadOldImageFromCache(int userId)
{
string statusMessage = "From cache . OLD IMAGE until cache is updated"
+ " , LastUpdate: " + DateTimeFormatter.ConvertTimeToCompactString(GetLastCacheAccess(userId), true) //(_lastCacheAccess, true) //
+ " Request by UserId: " + userId.GetFormattedUserId();
_logger?.LogCacheStat(statusMessage, userId);
}
private static (string strPrevTime, string strRequestTime) GetLogDateTimeValuesAsStrings(
DateTime lastUpdate,
DateTime requestTime)
{
string strPrevTime = DateTimeFormatter.ConvertTimeToCompactString(lastUpdate, true);
string strRequestTime = DateTimeFormatter.ConvertTimeToCompactString(requestTime, true);
return(strPrevTime, strRequestTime);
}
private void LogAfterReadingFromProvider(int userId)
{
string msg = "[2]--Finish reading image from source. " +
" " +
"Request by UserId: " + userId.GetFormattedUserId() + " , at " +
DateTimeFormatter.ConvertTimeToCompactString(GetLastCacheAccess(userId), true);
_logger?.LogCacheStat(msg, userId);
}
private string CreateMessageWhenCanReturnImage()
{
string statusMessage = ("From cache (2)." + // Granted access to cache
"Current = userId: " + _cacheUpdateService.UserId.GetFormattedUserId()).PadRight(50)
+ "LastUpdate: " +
DateTimeFormatter.ConvertTimeToCompactString(_cacheUpdateService.LastUpdate, true);
return(statusMessage.PadRight(85));
}
private void LogCanReturnCachedImage(int userId, DateTime timeRequested, bool canReturnImage)
{
string statusMessage = canReturnImage
? CreateMessageWhenCanReturnImage()
: CreateMessageWhenCanNotReturnImage(userId, timeRequested);
statusMessage += "Request by userId: " + userId.GetFormattedUserId() + " , at " +
DateTimeFormatter.ConvertTimeToCompactString(timeRequested, true);
_logger?.LogCacheStat(statusMessage, userId);
}
private string PrepareUpdateCacheLogMessage(int newUserId, DateTime lastCacheUpdate)
{
var statMessage = "UPDATE cache . ";
string action = _cacheUpdateService.UserId == newUserId ? "Updated " : "Replaced";
statMessage += $"{action}= userId: " + _cacheUpdateService.UserId.GetFormattedUserId();
statMessage = statMessage.PadRight(50);
statMessage += "LastUpdate: "
+ DateTimeFormatter.ConvertTimeToCompactString(lastCacheUpdate, true) + " ";
return(statMessage);
}
private void LogNewImageReadFromCache(int userId, DateTime requestTime)
{
string msg = "From cache (3) = Read image.".PadRight(50)
+ "LastUpdate: " +
DateTimeFormatter.ConvertTimeToCompactString(_imageFromCacheService.CacheLastUpdate, true)
+ ". Request by UserId: " + userId.GetFormattedUserId()
+ " lastCacheAccess "
+ DateTimeFormatter.ConvertTimeToCompactString(GetLastCacheAccess(userId), true)
+ " => "
+ DateTimeFormatter.ConvertTimeToCompactString(requestTime, true);
_logger?.LogCacheStat(msg, userId);
}
private void LogRequestAccessToCache(int userId, DateTime timeRequested, DateTime lastCacheUpdate,
int waitTimeMilliSec, string reason)
{
var requestDelay = (int)timeRequested.Subtract(lastCacheUpdate).TotalMilliseconds;
string msg = "From cache (1) = Request access and WAIT".PadRight(50) +
"LastUpdate: " +
DateTimeFormatter.ConvertTimeToCompactString(lastCacheUpdate, true) +
$" Request by userId: {userId.GetFormattedUserId()} " +
" at " +
DateTimeFormatter.ConvertTimeToCompactString(timeRequested, true) +
$" Delta T = {requestDelay} ms." +
$" Time to wait = {waitTimeMilliSec} ms {reason}";
_logger?.LogCacheStat(msg, userId);
}
public static void WriteImageToFile(Image image, DateTime dateTime,
string imageDirectory, IMiniLogger logger,
int userId, string userIp,
bool roundSecondsToZero = true)
{
if (image == null)
{
return;
}
if (string.IsNullOrWhiteSpace(imageDirectory))
{
return;
}
dateTime = RoundSecondsToZero(dateTime, roundSecondsToZero);
string dateTimeCompact = DateTimeFormatter.ConvertTimeToCompactString(dateTime: dateTime, withMilliSeconds: false);
WriteImageToFile(image, imageDirectory, dateTimeCompact, logger, userId, userIp);
}
private static void WriteToLogFile(string fileName, string text)
{
if (string.IsNullOrEmpty(fileName))
{
return;
}
if (string.IsNullOrEmpty(text))
{
return;
}
string logFileName = GetTodaysLogFileName(fileName);
try
{
lock (LockFileWrite)
{
DateTime dateTimeNow = _dateTimeProvider.DateTimeNow;
string strDateTime = DateTimeFormatter.ConvertTimeToCompactString(dateTime: dateTimeNow, withMilliSeconds: true);
text = strDateTime + "," + text;
File.AppendAllText(logFileName, text + Environment.NewLine);
}
}
catch (DirectoryNotFoundException)
{
string directoryName = Path.GetDirectoryName(logFileName);
if (!string.IsNullOrWhiteSpace(directoryName))
{
Directory.CreateDirectory(directoryName);
File.AppendAllText(logFileName, text + Environment.NewLine);
}
}
catch (Exception e)
{
Console.WriteLine(e);
throw;
}
}
private void LogCacheHasBeenUpdated(string statMessage)
{
statMessage += " With = userId: " + _cacheUpdateService.UserId.GetFormattedUserId() + " , LastUpdate: "
+ DateTimeFormatter.ConvertTimeToCompactString(_cacheUpdateService.LastUpdate, true) + " ";
_logger?.LogCacheStat(statMessage, _cacheUpdateService.UserId);
}
