problem Integrating 3rd party search engines

Hi experts,

I integrate the example "Integrating 3rd party search engines into KM index management" to access a search engine we have developped to access some database.

I have 2 issues :

1) the search works well, but for some results I have the unpredictable message "no abstract available" while the abstract is well filled (I verify in the logs)

2) the documents returned by 3rd-party search engine have custom properties. How display these properties in the search results lists ?

Thank you,

Franck