metadata key for original file path?

[Allison, Timothy B.]

All,
  In working on TIKA-1010, there are some cases where the full original file 
path is stored with an image or embedded document.  
TikaMetadatakeys.RESOURCE_NAME_KEY should be used for file name (right?), but 
what should I use for file path?

      Thank you.

            Best,

                    Tim