/// <summary>
/// Add a new entry for file. File must be saved so as to be
/// appeared under its parent directory.
/// </summary>
private SqlFile __addFile(string fileName)
{
if ((fileName = checkInvalidChars(fileName)) == null)
{
SqlFsErrCode.CurrentError = FsErr.InvalidChars;
return(null);
}
if (__isAlreadyExist(fileName))
{
SqlFsErrCode.CurrentError = FsErr.NameAlreadyExists;
return(null);
}
FsID newID = SqlFile.addFile(db, fileName, this.ID);
if (newID.compare(SqlFsConst.INVALIDID) <= 0)
{
SqlFsErrCode.CurrentError = FsErr.NoNewIDForNewFsNode;
return(null);
}
if (!updateChildList(SqlFsConst.FSOP.ADD, newID, FsID.toFsID(0)))
{
// delete entry just created
SqlFs.deleteEntryByID(db, SqlFs.DBNAMES.FsBlock.ToString(), SqlFs.FSBLOCK.fsID.ToString(), newID);
return(null);
}
SqlFile f = SqlFile.getFile(db, fsLocker, newID);
f.setDataBlockID(SqlFsConst.NOFILEDATAID);
return(f);
}
public virtual SqlFile addFile(string fileName)
{
SqlFsErrCode.CurrentError = FsErr.OK;
SqlFile newFile = null;
fsLocker.FsLock;
SqlFsTransaction fsTran = new SqlFsTransaction(db);
try
{
newFile = __addFile(fileName);
if (newFile != null)
{
fsTran.fsOpSuccess();
}
}
finally
{
fsTran.dispose();
fsLocker.dispose();
}
return(newFile);
}
/// <summary>
/// Get a fsNode from the result
/// </summary>
internal static SqlFsNode getFsNode(SQLiteDatabase db, SqlFsLocker fsLocker, Cursor c)
{
SqlFsNode fsNode = null;
SqlFsConst.FSTYPE type = SqlFsConst.FSTYPE.toFSTYPE(c.getInt(SqlFs.FSBLOCK.fsType.ordinal()));
if (type == SqlFsConst.FSTYPE.DIR)
{
fsNode = SqlDir.getDir(db, fsLocker, c);
}
else if (type == SqlFsConst.FSTYPE.FILE)
{
fsNode = SqlFile.getFile(db, fsLocker, c);
}
return(fsNode);
}
/// <summary>
/// Get list of files only
/// </summary>
private List <SqlFile> __getFiles()
{
List <SqlFile> fileList = null;
Cursor c = getEntryByName(null, SqlFsConst.FSTYPE.FILE);
if (c != null)
{
c.moveToFirst();
fileList = new List <SqlFile>(c.Count);
do
{
SqlFile f = SqlFile.getFile(db, fsLocker, c);
if (f != null)
{
fileList.Add(f);
}
} while (c.moveToNext());
c.close();
}
return(fileList);
}
internal static SqlFile getFile(SQLiteDatabase db, SqlFsLocker fsLocker, Cursor c)
{
FsID id = SqlFsFunc.getID(c, SqlFs.FSBLOCK.fsID.ordinal());
return(SqlFile.getFile(db, fsLocker, id));
}
internal static SqlFile getFile(SQLiteDatabase db, SqlFsLocker fsLocker, FsID id)
{
SqlFile f = new SqlFile(db, fsLocker, id);
return(f);
}