/// <inheritdoc />
public override IEnumerable <FileSystemInfoBase> EnumerateFileSystemInfos()
{
if (!_concreteDirectoryInfo.Exists || _depth >= _fsWrapperFactory.MaxRecursionDepth)
{
yield break;
}
foreach (FileSystemInfo fileSystemInfo in _fsWrapperFactory.SafeEnumerateFileSystemInfos(_concreteDirectoryInfo))
{
switch (fileSystemInfo)
{
case DirectoryInfo dirInfo:
yield return(_fsWrapperFactory.CreateDirectoryInfoWrapper(dirInfo, _depth + 1));
break;
case FileInfo fileInfo:
yield return(_fsWrapperFactory.CreateFileInfoWrapper(fileInfo, _depth));
break;
default:
// We should NEVER get here, but if we do just continue on
break;
}
}
}
/// <summary>
/// Safely calculates the parent of this file, swallowing most errors.
/// </summary>
private DirectoryInfoBase SafeParentDirectory()
{
try
{
return(_fsWrapperFactory.CreateDirectoryInfoWrapper(_concreteFileInfo.Directory, _depth));
}
catch (DirectoryNotFoundException e)
{
_fsWrapperFactory.Logger.WriteHandledException(
$"Could not get parent of '{_concreteFileInfo.FullName}' due to it being an invalid path",
e);
}
catch (PathTooLongException e)
{
_fsWrapperFactory.Logger.WriteHandledException(
$"Could not get parent of '{_concreteFileInfo.FullName}' due to the path being too long",
e);
}
catch (Exception e) when(e is SecurityException || e is UnauthorizedAccessException)
{
_fsWrapperFactory.Logger.WriteHandledException(
$"Could not get parent of '{_concreteFileInfo.FullName}' due to the path not being accessible",
e);
}
catch (Exception e)
{
_fsWrapperFactory.Logger.WriteHandledException(
$"Could not get parent of '{_concreteFileInfo.FullName}' due to an exception",
e);
}
return(null);
}