public async Task <ResourceList <IDictionary <string, int> > > GetHistogramGroupedByMime(double span)
{
var histogram = await GetHistogram(span);
var resource = new ResourceList <IDictionary <string, int> >(histogram
.Select(k => (IDictionary <string, int>)k.GroupBy(x => x.MimeType)
.ToDictionary(x => x.Key, x => x.Count())));
foreach (var key in resource.Items.SelectMany(x => x.Keys).Distinct())
{
resource.Attributes[key] = true;
}
return(resource);
}
public async Task <ResourceList <LogEntry> > GetRecentRequests(long position = -1, Func <LogEntry, bool> filter = null)
{
if (filter == null)
{
filter = _ => true;
}
var entries = new List <LogEntry>(256);
long startPos = 0;
using (var stream = new FileStream(_logFile.FullName, FileMode.OpenOrCreate, FileAccess.Read, FileShare.ReadWrite))
{
if (position > -1 && position < stream.Length)
{
stream.Position = startPos = position;
}
else
{
if (stream.Length - DefaultReadSize > 0)
{
stream.Position = startPos = stream.Length - DefaultReadSize;
}
}
using (var reader = new StreamReader(stream))
{
await reader.ReadLineAsync();
while (true)
{
var next = await reader.ReadLineAsync();
if (next == null)
{
break;
}
try
{
var entry = LogEntry.Parse(next);
if (filter(entry))
{
entries.Add(entry);
}
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
}
}
var resource = new ResourceList <LogEntry>(entries, startPos)
{
TotalSize = _logFile.Length
};
return(resource);
}
