Shared media crawler database method and system

摘要

The embodiments relate to transcoding, cataloging, and extracting metadata about files stored in a storage device. In one embodiment, a crawler runs on the storage device and maintains a database that is stored in the volume with the data that has been cataloged by the crawler. The crawler may discover files of any type and extract associated metadata about the files. The crawler can extract metadata about client interaction with various files, such as edits, play counts, etc. The crawler may discover files of any type and extract associated metadata about the files automatically during a scan or at the request of a client. In one embodiment, the crawler may be responsive to file system events that indicate changes to the file system, such as additions, deletions, or other types of changes. In addition, the crawler may synchronize the database with the file system so that they indicated the same state for a particular file. Furthermore, the crawler may provide notifications to various entities regarding the state of a file.

主权项

1. A method of monitoring files stored in a volume comprising at least one storage device, comprising:
monitoring, by a crawler, the at least one storage device; maintaining, by the crawler, a catalog for files stored within the volume; receiving, by the crawler, an event indicating a change to a file stored on the at least one storage device; transcoding, by the crawler, the file from a first format to a second format; extracting, by the crawler, metadata for the file; storing, by the crawler in the volume, information indicating the change and the transcoding in the catalog of the files; determining a set of subscribers that have requested to receive a notification of the event; retrieving notification criteria for the set of subscribers from the catalog of files; evaluating the retrieved notification criteria for each of the set of subscribers; and sending a notification of the event to those subscribers whose notification criteria are satisfied.