Hi Andrea,
Thank you for taking the time to respond. It is good to know that
openJDK will work.
The information that you give on the geospatial reference and searching
is very useful and gives me a starting point. I will be sure to keep you
updated if we decide to go down the dspace route (which is looking very
likely now).
Will be sure to ask any other technical questions in the dspace-tech
mailing list
Kind regards
Marc
On 6 Nov 2018, at 17:25, Bollini Andrea wrote:
Hi Marc,
DSpace-CRIS (but also DSpace) works well with OpenJDK, indeed OpenJDK
8
/tomcat 8.5 is our reference platform for DSpace-CRIS.
In regards to the geospatial references, you can for sure collect
these
additional information in any CRIS entities as additional attributes
and use these extra information to build specialized features.
Keep in mind that the search features are powered by Solr, so you
should play with the SolrServiceIndexingPlugin
https://github.com/4Science/DSpace/blob/dspace-5_x_x-cris/dspace-api/src/main/java/org/dspace/discovery/SolrServiceIndexPlugin.java
https://github.com/4Science/DSpace/blob/dspace-5_x_x-cris/dspace-cris/api/src/main/java/org/dspace/app/cris/discovery/CrisServiceIndexPlugin.java
and the SOLR schema to write such information in a meaningful way for
SOLR, see
https://wiki.apache.org/solr/SolrAdaptersForLuceneSpatial4
then you will need to build custom code to deal with such geospatial
data in the search form, in the result facets, in the visualization to
present them over a map, etc. etc.
I'm really interested in development in this area please keep me
updated with your progress and feel free to reach me directly if you
need more insights (BTW: this discussion is becoming a bit technical,
the dspace-tech mailing list is probably more appropriate)
Andrea
On Mon, 2018-11-05 at 07:02 -0800, Marc wrote:
We are currently in the process of developing a repository for
historic and current ecological research. This will not only include
tabular data (CSVs, Excel), but also information in a wide variety of
formats.
In particular we are very interested in DSpace-cris as it seems to
meet nearly all our requirements. In particular version 7 of the
software is looking very interesting.
But we have two questions that I have not been able to find suitable
answers to.
Does the system use any of the commercial Java features and therefore
require a licence from Oracle starting in 2019? Even better would it
be possible to use the OpenJDK instead of the standard edition?
We have a requirement for certain entities to be related to one or
more spatial layers (points, lines or polygons). This spatial layer
will denote the footprint of the research. Of course it is possible
to store the spatial data in a Postgres/PostGIS database by enabling
the database extension. But we wanted to allow users to perform
spatial searches if required. Although I have not programmed in Java
for a number of years, I not averse to getting my hands dirty with
java code. Searching through the mailing list there does seem to be
two question regarding this functionality, but little other
information. Is there any known stumbling blocks to us implementing
this functionality?
Thanks
Marc
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