private IDataSource AddDataSource(DataSource settings)
{
lock (_syncRoot)
{
IDataSource dataSource;
if (!string.IsNullOrEmpty(settings.LogFileFolderPath))
{
dataSource = new FolderDataSource(_taskScheduler, _logSourceFactory, _filesystem, settings);
}
else if (!string.IsNullOrEmpty(settings.File))
{
dataSource = new FileDataSource(_logSourceFactory, _taskScheduler, settings, _maximumWaitTime);
}
else if (settings.CustomDataSourceConfiguration != null)
{
dataSource = new CustomDataSource(_logSourceFactory, _taskScheduler, settings, _maximumWaitTime);
}
else
{
if (settings.DisplayName == null)
{
settings.DisplayName = "Merged Data Source";
}
dataSource = new MergedDataSource(_taskScheduler, settings, _maximumWaitTime);
}
_dataSources.Add(dataSource);
_dataSourceIds.Add(dataSource.Id);
_bookmarks.AddDataSource(dataSource);
return(dataSource);
}
}
private IReadOnlyList <IDataSource> SynchronizeDataSources(IReadOnlyList <IFileInfo> files)
{
var newFiles = new List <IFileInfo>();
var oldFiles = new List <IFileInfo>();
var dataSources = new List <IDataSource>();
try
{
lock (_syncRoot)
{
foreach (var file in _dataSources.Keys)
{
if (!files.Contains(file))
{
oldFiles.Add(file);
}
}
foreach (var file in oldFiles)
{
_dataSources.TryGetValue(file, out var dataSource);
_dataSources.Remove(file);
dataSource?.Dispose();
}
foreach (var file in files)
{
if (!_dataSources.TryGetValue(file, out var dataSource))
{
// We'll print a nice warning to the user if this happens
if (_dataSources.Count >= LogEntrySourceId.MaxSources)
{
break;
}
var settings = new DataSource(file.FullPath)
{
Id = DataSourceId.CreateNew()
};
dataSource = new FileDataSource(_logSourceFactory,
_taskScheduler,
settings);
_dataSources.Add(file, dataSource);
newFiles.Add(file);
}
dataSources.Add(dataSource);
}
}
}
catch (Exception)
{
foreach (var dataSource in dataSources)
{
dataSource.Dispose();
}
throw;
}
if (Log.IsDebugEnabled)
{
Log.DebugFormat("Adding #{0} files ({1}), removing #{2} files ({3})",
newFiles.Count,
string.Join(", ", newFiles.Select(x => x.FullPath)),
oldFiles.Count,
string.Join(", ", oldFiles.Select(x => x.FullPath)));
}
return(dataSources);
}
