public IEnumerable <EventBase> ReadAllEvents()
{
IEnumerable <EventBase> CreateEnumerable()
{
var files =
string.IsNullOrWhiteSpace(EventFile)
? from file in _journalDirectoryProvider.FindJournalDirectory().Result.GetFiles("Journal.*.log")
orderby file.Name descending
select file
: new[] { new FileInfo(EventFile), new FileInfo(EventFile) }.AsEnumerable();
foreach (var file in files.Skip(1))
{
using var fileReader =
File.Open(file.FullName, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
using var sr = new StreamReader(fileReader);
var lines = new List <string>();
while (!sr.EndOfStream)
{
lines.Add(sr.ReadLine() !);
}
lines.Reverse();
foreach (var line in lines)
{
EventBase?ev = null;
try
{
ev = _eventProvider.ProcessJsonEvent(line).Result;
}
catch (EventNotImplementedException err)
{
}
if (ev != null)
{
yield return(ev);
}
}
}
}
return(new EnumerableStream <EventBase>(CreateEnumerable()));
}
private async Task SetJournalDirectory()
{
try
{
var newJournalDirectory = await _journalDirectoryProvider.FindJournalDirectory();
if (newJournalDirectory == null || JournalDirectory?.FullName == newJournalDirectory.FullName)
{
return;
}
_log.LogInformation("Setting journal directory to {filePath}", newJournalDirectory.FullName);
JournalDirectory = newJournalDirectory;
}
catch (Exception ex)
{
_log.LogWarning(ex, "Could not find journal directory");
throw;
}
}