When importing Confluence space exports, links to pages outside the space will break because information about these pages is needed but missing.

This can be worked around by providing a link mapping, that maps space key document titles to XWiki entity reference. This mapping can be gathered through previous imports.

We shall:

• add an input filter stream property to provide such a link mapping to Confluence-XML
• add a method that will allow users to get a link mapping built from the Confluence package.