/// <summary>
/// Gets a value indicating whether the specified catalog entry already exists.
/// </summary>
/// <param name="entry">The catalog entry.</param>
/// <returns><c>true</c> if the catalog entry exists. Otherwise <c>false.</c></returns>
public async Task <bool> CatalogEntryExists(CatalogEntry entry)
{
return(await Task.Run(() =>
{
entry.ValidatePath();
string path = entry.GeneratePath();
return File.Exists(path);
}));
}
/// <summary>
/// Gets the catalog entry by the initial instance set.
/// </summary>
/// <param name="entry">The initial catalog entry set.</param>
/// <returns>The instance of <see cref="CatalogEntry"/> type.</returns>
public async Task <CatalogEntry> GetCatalogEntry(CatalogEntry entry)
{
return(await Task.Run(() =>
{
entry.ValidatePath();
entry.Path = entry.GeneratePath();
if (File.Exists(entry.Path))
{
entry.Size = new FileInfo(entry.Path).Length;
}
return entry;
}));
}
/// <summary>
/// Deletes the specified catalog entry.
/// </summary>
/// <param name="entry">The instance of <see cref="CatalogEntry" /> type to delete.</param>
/// <returns>
/// The deleted instance of <see cref="CatalogEntry"/> type.
/// </returns>
public async Task <CatalogEntry> DeleteCatalogEntry(CatalogEntry entry)
{
return(await Task.Run(() =>
{
entry.ValidatePath();
entry.Path = entry.GeneratePath();
if (File.Exists(entry.Path))
{
lock (FileAccessSyncObject)
{
if (File.Exists(entry.Path))
{
File.Delete(entry.Path);
}
}
}
return entry;
}));
}