/// <summary>
/// Load files in one Folder, then recurse on all contained folders
/// </summary>
/// <param name="root">Current Top Level Folder Name</param>
private void MyLoLoadFolder(DirectoryInfo root)
{
System.IO.FileInfo[] files = null;
System.IO.DirectoryInfo[] subDirs = null;
// First, process all the files directly under this folder
try
{
files = root.GetFiles("*.*");
}
// This is thrown if even one of the files requires permissions greater
// than the application provides.
catch (UnauthorizedAccessException e)
{
// This code just writes out the message and continues to recurse.
// You may decide to do something different here. For example, you
// can try to elevate your privileges and access the file again.
log.Add(e.Message);
}
catch (System.IO.DirectoryNotFoundException e)
{
Console.WriteLine(e.Message);
}
if (files != null)
{
foreach (System.IO.FileInfo fi in files)
{
// a try-catch block is required here to handle the case
// where the file has been deleted since the call to MyLoLoadFolder().
try
{
if (fi.Extension == ".jpg" || fi.Extension == ".JPG")
{
Photo photo = new Photo();
Image.GetThumbnailImageAbort myCallback =
new Image.GetThumbnailImageAbort(ThumbnailCallback);
Bitmap image = new Bitmap(fi.FullName);
Image thumb = image.GetThumbnailImage(100, 100, myCallback, IntPtr.Zero);
ImageConverter converter = new ImageConverter();
photo.Thumbnail = (byte[])converter.ConvertTo(thumb, typeof(byte[]));
// This is for testing only - should switch to more reliable Hash such as SHA-256 or MD5
//long CRC = CalculateCRCForFile(fi.FullName);
photo.CRC = image.GetHashCode();
image.Dispose();
JpgPhoto photoJpg = new JpgPhoto(fi.FullName);
photo.Uri = fi.FullName;
photo.Aperture = photoJpg.Metadata.Aperture;
photo.Camera = photoJpg.Metadata.CameraModel;
photo.DateTaken = photoJpg.Metadata.DateTaken;
photo.PhotoIndexKind = _timeIndexKind;
DateTime dat = photoJpg.Metadata.DateTaken.Date;
TimeSpan tim = photoJpg.Metadata.DateTaken.TimeOfDay;
if (photoJpg.Metadata.GpsPosition.Latitude.IsValidCoordinate)
{
photo.GpsLat = photoJpg.Metadata.GpsPosition.Latitude.Numeric;
}
if (photoJpg.Metadata.GpsPosition.Longitude.IsValidCoordinate)
{
photo.GpsLong = photoJpg.Metadata.GpsPosition.Longitude.Numeric;
}
photo.Uuid = Guid.NewGuid();
//foreach (Tag tag in photo.Metadata.Tags)
//{
// Console.WriteLine(tag.FullName);
//}
long photoId = _myLoStore.AddPhoto(_userId, photo);
_count++;
// TODO add code to write back GUID and Hash into photo metadata
}
}
catch (MyLoCRCException crcEx)
{
throw new MyLoException("CRC Calculation Error: Inner exception: " + crcEx);
}
catch (MyLoDataStoreException dsEx)
{
throw new MyLoException("DataStore Error: Inner exception: " + dsEx);
}
catch (Exception ex)
{
throw new MyLoException("File not Found: " + fi.FullName + " Inner exception: " + ex);
}
Debug.WriteLine(fi.FullName);
}
// Now find all the subdirectories under this directory.
subDirs = root.GetDirectories();
foreach (System.IO.DirectoryInfo dirInfo in subDirs)
{
// Resursive call for each subdirectory.
MyLoLoadFolder(dirInfo);
}
}
}
/// <summary>
/// Adds Photo to MyLo datastore using PostgreSQL function 'addPhoto'
/// </summary>
/// <param name="userId">An identifier for a MyLoAccount holder</param>
/// <param name="...">photo meta data</param>
public long AddPhoto(long userId, Photo photo)
{
try
{
NpgsqlCommand command = new NpgsqlCommand("AddPhoto", _conn);
command.CommandType = CommandType.StoredProcedure;
// create 8 parameters for this function
for (int i = 0; i < 10; i++)
{
command.Parameters.Add(new NpgsqlParameter());
}
command.Parameters[0].DbType = DbType.Int64;
command.Parameters[0].Value = userId;
command.Parameters[1].DbType = DbType.String;
command.Parameters[1].Value = photo.Uri;
command.Parameters[2].DbType = DbType.Guid;
command.Parameters[2].Value = photo.Uuid;
command.Parameters[3].DbType = DbType.Int64;
command.Parameters[3].Value = photo.CRC;
command.Parameters[4].DbType = DbType.DateTime;
command.Parameters[4].Value = photo.DateTaken;
command.Parameters[5].DbType = DbType.String;
command.Parameters[5].Value = photo.Camera;
command.Parameters[6].DbType = DbType.Double;
command.Parameters[6].Value = photo.GpsLat;
command.Parameters[7].DbType = DbType.Double;
command.Parameters[7].Value = photo.GpsLong;
command.Parameters[8].NpgsqlDbType = NpgsqlDbType.Bytea;
command.Parameters[8].Value = photo.Thumbnail;
command.Parameters[9].DbType = DbType.String;
command.Parameters[9].Value = photo.PhotoIndexKind;
Object result = command.ExecuteScalar();
return (long)result;
}
catch (NpgsqlException npex)
{
_conn.Close();
throw new MyLoDataStoreException(npex.Message, npex);
}
catch (Exception ex)
{
_conn.Close();
throw new MyLoDataStoreException(ex.Message);
}
}