How to define very simple own rule in fuseki step by step? - jena

Question

I'm asking your help to understand how to create my own property rules in fuseki.
I've read the documentation of Jena and Fuseki about reasoners and rules but I don't understand how to create (step by step) simple rules. And the examples that I've found are focus on OWL reasoners.
I don't clearly understand what write in the config.ttl file in order to fuseki takes into account my rules on my ontology. I use the Sparql point with python through a sparql-client, and I don't master java code and applications.
My purpose is to create the next rules:
#prefix rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns#
#prefix ex: http://example.com/
#prefix xs: http://www.w3.org/2001/XMLSchema#
#prefix ont: http://www.myownontolongy/ontology/
[dependsOfExchange:
(?e ont:refersToPriorActivityData ?a)
(?a ont:hasExchange ?es)
->
(?e rme:dependsOfExchange ?es)
]
The principle in SWRL syntax is:
refersToPriorActivityData(?e,?a) ^ hasExchange(?a,?es) => dependsOfExchange(?e,?es)
Thanks in advance.
EDIT with one solution
#prefix : <#> .
#prefix fuseki: <http://jena.apache.org/fuseki#> .
#prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
#prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
#prefix tdb: <http://jena.hpl.hp.com/2008/tdb#> .
#prefix ja: <http://jena.hpl.hp.com/2005/11/Assembler#> .
[] ja:loadClass "com.hp.hpl.jena.tdb.TDB" .
tdb:DatasetTDB rdfs:subClassOf ja:RDFDataset .
tdb:GraphTDB rdfs:subClassOf ja:Model .
[] rdf:type fuseki:Server ;
# Timeout - server-wide default: milliseconds.
# Format 1: "1000" -- 1 second timeout
# Format 2: "10000,60000" -- 10s timeout to first result, then 60s timeout for the rest of query.
# See java doc for ARQ.queryTimeout
# ja:context [ ja:cxtName "arq:queryTimeout" ; ja:cxtValue "10000" ] ;
# ja:loadClass "your.code.Class" ;
fuseki:services (
<#reminer>
) .
## ---------------------------------------------------------------
## Updatable in-memory dataset.
<#reminer> rdf:type fuseki:Service ;
# URI of the dataset -- http://host:port/reminer
fuseki:name "name_of_your_database" ;
fuseki:serviceQuery "sparql" ;
fuseki:serviceQuery "query" ;
fuseki:serviceUpdate "update" ;
fuseki:serviceUpload "upload" ;
fuseki:serviceReadWriteGraphStore "data" ;
fuseki:serviceReadGraphStore "get" ;
fuseki:serviceReadGraphStore "" ;
fuseki:dataset <#myDataset> ;
.
## In-memory, initially empty.
## This database set-up allows OWL inference.
<#myDataset> rdf:type ja:RDFDataset ;
tdb:unionDefaultGraph true ;
ja:defaultGraph <#infGraph> .
<#infGraph> rdf:type ja:InfModel ;
ja:reasoner [ ja:rulesFrom <file:rules/inference_rules.rules> ; ] ; #the rules directory is in the "run" directory
ja:baseModel <#baseGraph> .
<#baseGraph> rdf:type tdb:GraphTDB;
tdb:location "path_of_your_database" .
And the inference_rules.rules for an example:
#prefix rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns#
#prefix ex: http://example.com/
#prefix xs: http://www.w3.org/2001/XMLSchema#
#prefix mO: http://www.semanticweb.org/myOntology/
[dependsOfExchange:
(?e mO:producedBy ?a)
(?a mO:hasExchange ?es)
->
(?e rme:dependsOf ?es)
]

Answer 1

The .ttl use through the cmd line: ./fuseki-server --config=/path/of/your/custom-config.ttl
#prefix : <#> .
#prefix fuseki: <http://jena.apache.org/fuseki#> .
#prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
#prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
#prefix tdb: <http://jena.hpl.hp.com/2008/tdb#> .
#prefix ja: <http://jena.hpl.hp.com/2005/11/Assembler#> .
[] ja:loadClass "com.hp.hpl.jena.tdb.TDB" .
tdb:DatasetTDB rdfs:subClassOf ja:RDFDataset .
tdb:GraphTDB rdfs:subClassOf ja:Model .
[] rdf:type fuseki:Server ;
# Timeout - server-wide default: milliseconds.
# Format 1: "1000" -- 1 second timeout
# Format 2: "10000,60000" -- 10s timeout to first result, then 60s timeout for the rest of query.
# See java doc for ARQ.queryTimeout
# ja:context [ ja:cxtName "arq:queryTimeout" ; ja:cxtValue "10000" ] ;
# ja:loadClass "your.code.Class" ;
fuseki:services (
<#reminer>
) .
## ---------------------------------------------------------------
## Updatable in-memory dataset.
<#reminer> rdf:type fuseki:Service ;
# URI of the dataset -- http://host:port/reminer
fuseki:name "name_of_your_database" ;
fuseki:serviceQuery "sparql" ;
fuseki:serviceQuery "query" ;
fuseki:serviceUpdate "update" ;
fuseki:serviceUpload "upload" ;
fuseki:serviceReadWriteGraphStore "data" ;
fuseki:serviceReadGraphStore "get" ;
fuseki:serviceReadGraphStore "" ;
fuseki:dataset <#myDataset> ;
.
## In-memory, initially empty.
## This database set-up allows OWL inference.
<#myDataset> rdf:type ja:RDFDataset ;
tdb:unionDefaultGraph true ;
ja:defaultGraph <#infGraph> .
<#infGraph> rdf:type ja:InfModel ;
ja:reasoner [ ja:rulesFrom <file:rules/inference_rules.rules> ; ] ; #the rules directory is in the "run" directory
ja:baseModel <#baseGraph> .
<#baseGraph> rdf:type tdb:GraphTDB;
tdb:location "path_of_your_database" .
And the inference_rules.rules for an example:
#prefix rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns#
#prefix ex: http://example.com/
#prefix xs: http://www.w3.org/2001/XMLSchema#
#prefix mO: http://www.semanticweb.org/myOntology/
[dependsOfExchange:
(?e mO:producedBy ?a)
(?a mO:hasExchange ?es)
->
(?e rme:dependsOf ?es)
]