/// <summary>
/// Retrieves files from a file directory.
/// </summary>
/// <param name="searchInformation">Search information to query the directory with</param>
/// <param name="callback">Callback method to be invoked after each provided timeout period elapses</param>
/// <param name="intCallbackTimeoutSecounds">Number of seconds to wait before invoking the callback method</param>
/// <returns></returns>
public FileObjectList GetFilesAsync(SearchInformation searchInformation, SearchInformation.SearchCallback callback, int intCallbackTimeoutSecounds = 10)
{
try
{
// Validation
FileObjectList fileObjectList = new FileObjectList();
// Set Initial Search
DateTime lastDate = DateTime.Now;
// Create Directories Searched
DirectoryObjectList directoriesSearched = new DirectoryObjectList();
// Get File Asynchronously
this.GetFilesAsync(searchInformation, callback, ref fileObjectList, ref directoriesSearched, ref lastDate, intCallbackTimeoutSecounds);
return(fileObjectList);
}
catch (Exception ex)
{
// To Be Implemented: Throw Custom Exception...
Console.WriteLine(ex.ToString());
return(null);
}
}
private FileObjectList GetFilesAsync(SearchInformation searchInformation, SearchInformation.SearchCallback callback,
ref FileObjectList fileObjectList, ref DirectoryObjectList directoriesSearched, ref DateTime lastDate, int intCallbackTimeoutSecounds = 10)
{
try
{
#region Get Files
// Get Directory Files - Top Level Only
List <string> listFileNames = System.IO.Directory.GetFiles(this.FilePath, searchInformation.SearchPattern, System.IO.SearchOption.TopDirectoryOnly).ToList();
// Create File List
FileObjectList listFiles = new FileObjectList(listFileNames);
// Validation
if (listFiles.Count > 0)
{
// Filter Files By Search Information
List <FileObject> filesToAdd = searchInformation.GetSearchFilesFiltered(listFiles);
// Create File List
fileObjectList.AddRange(filesToAdd.ToArray());
// Distinct List
fileObjectList = new FileObjectList(fileObjectList.Distinct().ToList());
}
// Add Directory To Searched List
directoriesSearched.Add(this);
#endregion
#region Recurse Sub Directories
// Loop SubDirectories
foreach (DirectoryObject directory in this.SubDirectories)
{
// Get Sub Directory Files
directory.GetFilesAsync(searchInformation, callback, ref fileObjectList, ref directoriesSearched, ref lastDate, intCallbackTimeoutSecounds);
}
#endregion
#region Invoke Callback
// Check Time For Callback
if (fileObjectList != null && DateTime.Now > lastDate.AddSeconds(intCallbackTimeoutSecounds))
{
// Invoke Callback
callback.Invoke(fileObjectList, directoriesSearched);
lastDate = DateTime.Now;
}
#endregion
return(fileObjectList);
}
catch (Exception ex)
{
// To Be Implemented: Throw Custom Exception...
Console.WriteLine(ex.ToString());
return(null);
}
}