/// <summary>
/// Creates instance of <see cref="QuickIOFileMetadata"/>
/// </summary>
/// <param name="uncResultPath">UNC Path of current file</param>
/// <param name="win32FindData">Win32FindData of current file</param>
internal QuickIOFileMetadata( string uncResultPath, Win32FindData win32FindData )
: base(uncResultPath)
{
base.SetFindData( win32FindData );
Bytes = win32FindData.CalculateBytes( );
}
/// <summary>
/// Determines the statistics of the given directory. This includes the number of files, folders and the total size in bytes.
/// </summary>
/// <param name="path">Path to the directory to generate the statistics.</param>
/// <param name="enumerateOptions">Options <see cref="QuickIOEnumerateOptions"/></param>
/// <returns>Provides the statistics of the directory</returns>
/// <exception cref="PathNotFoundException">This error is fired if the specified path or a part of them does not exist.</exception>
public static QuickIOFolderStatisticResult GetDirectoryStatistics( String path, QuickIOEnumerateOptions enumerateOptions = QuickIOEnumerateOptions.None )
{
UInt64 fileCount = 0;
UInt64 folderCount = 0;
UInt64 totalSize = 0;
// Match for start of search
var currentPath = QuickIOPath.Combine( path, QuickIOPatternConstants.All );
// Find First file
var win32FindData = new Win32FindData( );
int win32Error;
using ( var fileHandle = FindFirstSafeFileHandle( currentPath, win32FindData, out win32Error ) )
{
// Take care of invalid handles
if ( fileHandle.IsInvalid )
{
if ( EnumerationHandleInvalidFileHandle( currentPath, enumerateOptions, win32Error ) )
{
return null;
}
}
// Treffer auswerten
do
{
// Ignore . and .. directories
if ( InternalRawDataHelpers.IsSystemDirectoryEntry( win32FindData ) )
{
continue;
}
// Create hit for current search result
var resultPath = QuickIOPath.Combine( path, win32FindData.cFileName );
// if it's a file, add to the collection
if ( !InternalHelpers.ContainsFileAttribute( win32FindData.dwFileAttributes, FileAttributes.Directory ) )
{
fileCount++;
totalSize += win32FindData.CalculateBytes( ); win32FindData.CalculateBytes( );
}
else
{
folderCount++;
var result = GetDirectoryStatistics( resultPath, enumerateOptions );
{
folderCount += result.FolderCount;
fileCount += result.FileCount;
totalSize += result.TotalBytes;
}
}
// Create new FindData object for next result
win32FindData = new Win32FindData( );
} // Search for next entry
while ( Win32SafeNativeMethods.FindNextFile( fileHandle, win32FindData ) );
}
// Return result;
return new QuickIOFolderStatisticResult( folderCount, fileCount, totalSize );
}
/// <summary>
/// Calculates the size of the file from the handle
/// </summary>
/// <param name="win32FindData"></param>
private void CalculateSize( Win32FindData win32FindData )
{
this.Bytes = win32FindData.CalculateBytes( );
}