I have ported urlmeta plugin available in 1.x to 2.x
It is designed to do two things:
- Meta Tags that are supplied with your Crawl URLs, during injection either through seed.txt or through REST API, will be propagated throughout the out-links of those Crawl URLs
- When you index your URLs, the meta tags that you specified with your URLs will be indexed alongside those URLs--and can be directly queried, assuming you have done everything else correctly.
I have also added support through the NutchServer REST-API. Have Attached patch along with this issue.