private static string FormatLogEntry(LogEntry logEntry)
{
return string.Format(
@"
<log>
<level>{0}</level>
<timestamp>{1}</timestamp>
<message>{2}</message>
<error>{3}</error>
<source>{4}</source>
</log>
",
logEntry.Level,
logEntry.DateTimeUtc.ToString("o", CultureInfo.InvariantCulture),
SecurityElement.Escape(logEntry.Message),
SecurityElement.Escape(logEntry.Error),
SecurityElement.Escape(logEntry.Source));
}
static int EntryToGroupKey(LogEntry entry)
{
var date = entry.DateTimeUtc.Date;
return (date.Year * 100 + date.Month) * 100 + date.Day;
}
public void Log(LogLevel level, Exception ex, object message)
{
if (!IsEnabled(level))
{
return;
}
var now = DateTime.UtcNow;
var logEntry = new LogEntry
{
DateTimeUtc = now,
Level = level.ToString(),
Message = message.ToString(),
Error = ex != null ? ex.ToString() : string.Empty,
Source = _source ?? string.Empty
};
var blobContent = FormatLogEntry(logEntry);
var blobName = string.Format("{0}/{1}/", FormatDateTimeNamePrefix(logEntry.DateTimeUtc), logEntry.Level);
var blobContainer = LevelToContainer(level);
var attempt = 0;
while (!_blobStorage.PutBlob(blobContainer, blobName + attempt, blobContent, false))
{
attempt++;
}
}
static string EntryToToken(LogEntry entry)
{
return entry.DateTimeUtc.ToString("yyyyMMddHHmmssffff");
}
