/// <summary>
/// Converts the <paramref name="item" /> to an instance of <see cref="MediaQueueItem" />.
/// </summary>
/// <param name="item">The item.</param>
/// <returns>An instance of <see cref="MediaQueueItem" />.</returns>
private static MediaQueueItem ToMediaQueueItem(MediaQueueDto item)
{
return new MediaQueueItem
{
MediaQueueId = item.MediaQueueId,
MediaObjectId = item.FKMediaObjectId,
Status = Enum<MediaQueueItemStatus>.Parse(item.Status),
StatusDetail = item.StatusDetail,
ConversionType = item.ConversionType,
RotationAmount = item.RotationAmount,
DateAdded = item.DateAdded,
DateConversionStarted = item.DateConversionStarted,
DateConversionCompleted = item.DateConversionCompleted
};
}
/// <summary>
/// Update the status of the <paramref name="item" /> to the specified <paramref name="status" />.
/// </summary>
/// <param name="item">The item whose status is to be updated.</param>
/// <param name="status">The status to update the item to.</param>
private static void ChangeStatus(MediaQueueDto item, MediaQueueItemStatus status)
{
item.Status = status.ToString();
Factory.GetDataProvider().MediaQueue_Save(item);
}
/// <summary> /// Persist the specified media queue item to the data store. The ID of the new item is assigned to /// <see cref="MediaQueueDto.MediaQueueId"/>. /// </summary> /// <param name="mediaQueue">The media queue item to persist to the data store.</param> public abstract void MediaQueue_Save(MediaQueueDto mediaQueue);
/// <summary>
/// Adds the specified <paramref name="mediaObject" /> to the queue. It will be processed in a first-in, first-out
/// order. If the media object is already waiting in the queue, no action is taken.
/// </summary>
/// <param name="mediaObject">The media object to be processed.</param>
public void Add(IGalleryObject mediaObject)
{
lock (_sharedLock)
{
if (IsWaitingInQueue(mediaObject.Id))
return;
MediaQueueDto mediaQueueDto = new MediaQueueDto
{
MediaQueueId = int.MinValue,
FKMediaObjectId = mediaObject.Id,
Status = MediaQueueItemStatus.Waiting.ToString(),
StatusDetail = String.Empty,
DateAdded = DateTime.Now,
DateConversionStarted = null,
DateConversionCompleted = null
};
Factory.GetDataProvider().MediaQueue_Save(mediaQueueDto);
MediaQueueItemDictionary.TryAdd(mediaQueueDto.MediaQueueId, mediaQueueDto);
}
}
/// <summary> /// Delete the media queue item from the data store. /// </summary> /// <param name="mediaQueue">The media queue item to delete from the data store.</param> public abstract void MediaQueue_Delete(MediaQueueDto mediaQueue);
