public IEnumerable <FileInfo> EnumerateMatchingFiles(string location, FileEnumeratorCriteria fileHandlerOptions)
{
return(new DirectoryInfo(location)
.EnumerateFiles("*", fileHandlerOptions.IncludeSubdirectories ? SearchOption.AllDirectories : SearchOption.TopDirectoryOnly)
.Where(x => _fileFilterer.Filter(new FileData {
FileName = x.Name, Extension = x.Extension, FullPath = x.FullName, ByteSize = x.Length
}, fileHandlerOptions)));
}
public bool Filter(FileData fileInfo, FileEnumeratorCriteria options)
{
if (options.Extensions != null && options.Extensions.All(extension => extension != fileInfo.Extension))
{
return(false);
}
if (options.MinByteSize != null && fileInfo.ByteSize < options.MinByteSize)
{
return(false);
}
if (options.MaxByteSize != null && fileInfo.ByteSize > options.MaxByteSize)
{
return(false);
}
if (options.Exclude != null && options.Exclude.Any(excludeTerm => fileInfo.FileName.Contains(excludeTerm)))
{
return(false);
}
return(true);
}
public FileInfo GetRandomFile(string location, FileEnumeratorCriteria fileHandlerOptions)
{
return(_fileEnumerator
.EnumerateMatchingFiles(location, fileHandlerOptions)
.Random());
}