/// <summary>
/// Reads filenames from a directory and returns an ArrayList.
/// </summary>
/// <example>
/// <code>
/// using Mezzocode.Halide3;
/// ...
/// ArrayList filenames = h3Storage.GetFiles("/pdf", "*.pdf|*.pdfx", Halide3Lite.h3Storage.PathOptions.Path);
/// </code>
/// </example>
/// <param name="path">Web-formatted path to the files.</param>
/// <param name="filter">String filename wildcard (*.* is assumed by default).
/// Separate multiple filespecs with a bar character (e.g. "*.gif|*.jpg")</param>
/// <param name="options">options for returned files inclusion, et al.
/// (e.g. (PathOptions.Hidden | PathOptions.System | PathOptions.Path) returns all files,
/// including hidden and system files, and the filename includes the full path).</param>
/// <returns>ArrayList of filenames.</returns>
public static ArrayList GetFiles(string path, string filter, PathOptions options)
{
ArrayList fileArray = new ArrayList();
FileInfo objFI;
string[] files;
if (String.IsNullOrEmpty(filter)) filter = "*.*";
string[] filespec = filter.Split('|');
try
{
for (int L = 0; L < filespec.Length; L++)
{
files = System.IO.Directory.GetFiles(path, filespec[L]);
for (int i = 0; i < files.Length; i++)
{
objFI = new System.IO.FileInfo(files[i]);
if (
(objFI.Attributes.ToString().IndexOf("Hidden") < 0 && objFI.Attributes.ToString().IndexOf("System") < 0)
||
((int)(options & PathOptions.Hidden) != 0 && objFI.Attributes.ToString().IndexOf("Hidden") >= 0)
||
((int)(options & PathOptions.System) != 0 && objFI.Attributes.ToString().IndexOf("System") >= 0)
)
{
if (!fileArray.Contains(objFI.Name) && !fileArray.Contains(objFI.FullName))
{
fileArray.Add(((int)(options & PathOptions.Path) != 0) ? objFI.FullName : objFI.Name);
}
}
}
}
}
catch
{ }
return fileArray;
}
/// <summary>
/// Deletes file(s) from a directory, based on age.
/// </summary>
/// <example>
/// <code>
/// using Mezzocode.Halide3;
/// ...
/// int deletedFilesCount = h3Storage.DeleteFiles("/pdf/", "*.tmp|*.chk", Halide3Lite.h3Storage.PathOptions.Path, DateTime.Now);
/// </code>
/// </example>
/// <param name="path">Web-formatted path to the files or a full path and filename to delete a single file (the later ignores any age params).</param>
/// <param name="filter">String filename wildcard (*.* is assumed by default). Separate multiple filespecs with a bar character (e.g. "*.gif|*.jpg").</param>
/// <param name="options">options for file inclusion (PathOptions.Hidden | PathOptions.System) deletes all files, including hidden and system files.</param>
/// <param name="age">DateTime object; files older than this (creation date; within 1 minute) are deleted.</param>
/// <returns>Number of files deleted successfully.</returns>
public static Int32 DeleteFiles(string path, string filter, PathOptions options, System.DateTime age)
{
FileInfo objFI;
string[] files;
int result = 0;
if (String.IsNullOrEmpty(filter)) filter = "*.*";
string[] filespec = filter.Split('|');
if (FileExists(path))
{
objFI = new System.IO.FileInfo(path);
objFI.Delete();
result++;
}
else
{
try
{
for (int L = 0; L < filespec.Length; L++)
{
files = System.IO.Directory.GetFiles(path, filespec[L]);
for (int i = 0; i < files.Length; i++)
{
objFI = new System.IO.FileInfo(files[i]);
if (
(objFI.Attributes.ToString().IndexOf("Hidden") < 0 && objFI.Attributes.ToString().IndexOf("System") < 0)
||
((int)(options & PathOptions.Hidden) != 0 && objFI.Attributes.ToString().IndexOf("Hidden") >= 0)
||
((int)(options & PathOptions.System) != 0 && objFI.Attributes.ToString().IndexOf("System") >= 0)
)
{
if (h3Temporal.DateDiff(h3Temporal.DateDiffComparisonType.minutes, objFI.CreationTime, age) > 1)
{
objFI.Delete();
result++;
}
}
}
}
}
catch
{
}
}
return result;
}