Hi there,
Sorry to trouble you again. Last month I wrote to you to figure out the
bug in text search for TDB. Given the following configuration, text
search works with TDB:
@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#> .
@prefix text: <http://jena.apache.org/text#> .
[] rdf:type fuseki:Server ;
fuseki:services (
<#service_text_tdb>
) .
# TDB
[] ja:loadClass "com.hp.hpl.jena.tdb.TDB" .
tdb:DatasetTDB rdfs:subClassOf ja:RDFDataset .
tdb:GraphTDB rdfs:subClassOf ja:Model .
# Text
[] ja:loadClass "org.apache.jena.query.text.TextQuery" .
text:TextDataset rdfs:subClassOf ja:RDFDataset .
text:TextIndexLucene rdfs:subClassOf text:TextIndex .
<#service_text_tdb> rdf:type fuseki:Service ;
rdfs:label "TDB/text service" ;
fuseki:name "ds" ;
fuseki:serviceQuery "query" ;
fuseki:serviceQuery "sparql" ;
fuseki:serviceUpdate "update" ;
fuseki:serviceUpload "upload" ;
fuseki:serviceReadGraphStore "get" ;
fuseki:serviceReadWriteGraphStore "data" ;
fuseki:dataset <#text_dataset> ;
.
<#text_dataset> rdf:type text:TextDataset ;
text:dataset <#dataset> ;
text:index <#indexLucene> ;
.
<#dataset> rdf:type tdb:DatasetTDB ;
tdb:location "DB" ;
##tdb:unionDefaultGraph true ;
.
<#indexLucene> a text:TextIndexLucene ;
text:directory <file:Lucene> ;
##text:directory "mem" ;
text:entityMap <#entMap> ;
.
<#entMap> a text:EntityMap ;
text:entityField "uri" ;
text:defaultField "text" ; ## Should be defined in the
text:map.
text:map (
# rdfs:label
[ text:field "text" ; text:predicate rdfs:label ]
) .
Now we want to use text search for in-memory datasets, but we failed
after some trials, the configuration file we use is as follows:
@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#> .
@prefix text: <http://jena.apache.org/text#> .
@prefix spatial: <http://jena.apache.org/spatial#> .
[] a fuseki:Server ;
fuseki:services (
<#memory>
) .
<#memory> a fuseki:Service ;
fuseki:name "memory" ;
fuseki:serviceQuery "sparql" ;
fuseki:serviceQuery "query" ;
fuseki:serviceUpdate "update" ; # SPARQL query
service -- /memory/update
fuseki:serviceUpload "upload" ; # Non-SPARQL upload
service
fuseki:serviceReadWriteGraphStore "data" ;
fuseki:serviceReadGraphStore "get" ; # Graph store
protocol (read only) -- /memory/get
fuseki:dataset :text_dataset ;
.
<#dataset> rdf:type ja:RDFDataset ;
ja:defaultGraph
[
a ja:MemoryModel ;
ja:content [ja:externalContent <file:dcat-vl.ttl> ] ;
] .
# Text
[] ja:loadClass "org.apache.jena.query.text.TextQuery" .
text:TextDataset rdfs:subClassOf ja:RDFDataset .
text:TextIndexLucene rdfs:subClassOf text:TextIndex .
:text_dataset a text:TextDataset ;
text:dataset <#dataset> ;
text:index <#textIndexLucene> ;
.
# Text index description
<#textIndexLucene> a text:TextIndexLucene ;
text:directory <file:Lucene> ;
##text:directory "mem" ;
text:entityMap <#entMap> ;
.
<#entMap> a text:EntityMap ;
text:entityField "uri" ;
text:defaultField "text" ;
text:map (
[ text:field "text" ; text:predicate rdfs:label ]
) .
Additionally, if we enable RDFS reasoning for TDB, text search does not
work any more, given the following configuration:
@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#> .
@prefix text: <http://jena.apache.org/text#> .
@prefix spatial: <http://jena.apache.org/spatial#> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
[] a fuseki:Server ;
fuseki:services (
<#tdb>
) .
# Custom code.
[] ja:loadClass "com.hp.hpl.jena.tdb.TDB" .
# TDB
tdb:DatasetTDB rdfs:subClassOf ja:RDFDataset .
tdb:GraphTDB rdfs:subClassOf ja:Model .
<#tdb> a fuseki:Service ;
fuseki:name "tdb" ; # http://host/tdb
fuseki:serviceQuery "sparql" ; # SPARQL query service
fuseki:serviceQuery "query" ;
fuseki:serviceUpdate "update" ;
fuseki:serviceUpload "upload" ; # Non-SPARQL upload
service
fuseki:serviceReadGraphStore "get" ;
fuseki:serviceReadWriteGraphStore "data" ;
fuseki:dataset :text_dataset ;
.
<#tdb_inf_ds> a ja:RDFDataset ;
ja:defaultGraph <#tdb_inf> ;
.
<#tdb_inf> a ja:InfModel ;
rdfs:label "RDFS Inference Model" ;
ja:baseModel <#tdb_graph> ;
ja:reasoner
[ ja:reasonerURL
<http://jena.hpl.hp.com/2003/RDFSExptRuleReasoner> ]
.
<#tdb_graph> a tdb:GraphTDB ;
tdb:dataset <#tdb_ds> .
# A TDB datset used for RDF storage
<#tdb_ds> a tdb:DatasetTDB;
tdb:location "Data";
.
[] ja:loadClass "org.apache.jena.query.text.TextQuery" .
text:TextDataset rdfs:subClassOf ja:RDFDataset .
text:TextIndexLucene rdfs:subClassOf text:TextIndex .
:text_dataset a text:TextDataset ;
text:dataset <#tdb_inf_ds> ;
text:index <#textIndexLucene> ;
.
<#textIndexLucene> a text:TextIndexLucene ;
text:directory <file:Text> ;
##text:directory "mem" ;
text:entityMap <#entMap> ;
.
<#entMap> a text:EntityMap ;
text:entityField "uri" ;
text:defaultField "text" ;
text:map (
[ text:field "text" ; text:predicate rdfs:label ]
) .
All the tests are based on the 2.0.1 SNAPSHOT built on April 8th. Any
clue or any suggestion for this issue? Thank you very much and have a
nice day.
Regards,
Yang
