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From Wilhelm Eger <>
Subject Additional information from external database
Date Wed, 22 Feb 2017 12:01:17 GMT

I am using a setup of datafari (, which more or less combines 
a ManifoldCF file index with SolR as a search engine.

My setup consists of ~350000 files, which are composed mainly of doc(x), 
xls(x), msg and pdf files. pdf files are ocr'd externally before they are added 
to the ManifoldCF index. Only remaining image files (png, jpg) are ocr'd on-
the-fly, when being imported.

The files are actually part of an external file management system (files in the 
literal meaning of files, not files in the meaning of entities saved on the hard 
disk), which is not related to ManifoldCF/SolR at all. This system 
unfortunately does not provide a proper full text search, hence I implemented 
it as outlined above.

However, the users are used to certain file numbers provided by this file 
management system. These file numbers are stored in a MSSQL database, which is 
accessible from the host my setup is running on. I can easily get the file 
number by sending a respective SQL statement based on the file name (of the 
entity saved on the hard disk) to the SQL Server. Hence, for each file name, 
there is a file number stored in the database. I would like to have these file 
numbers to be stored in a specific field of the solr index to be shown by the 
(tomcat) output, e.g:

File name: /data/1003234234.docx
Content: "This is the content. You searched for _text_."
File name belongs to file number: SUI-G-25-A

Is there any possibility to achieve that? Did I understand it correctly that 
this could happen either in ManifoldCF during indexing or in SolR during 

I know that there is a tika plugin to talk to databases, which could be fed 
with a SQL statement. But how to connect it with the data retrieved from the 
files crawler?

Alternatively, I could also call an external script (bash, python) to retrieve 
the respective data from the database using bsqldb.

Any hint in the right direction is very much appreciated.

Thanks in advance,


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