Quick Start¶
Sandbox¶
To understand how G2GML works quickly, please visit the sandbox.
Some usage samples are provided. Notice that in order to use the sandbox effectively, knowledge about RDF and SPARQL are strongly recommended.
Command Line Usage¶
Installation¶
Set an alias to run a docker container:
$ alias g2g='docker run --rm -v $PWD:/work g2glab/g2g:0.3.5 g2g'
Check if it works:
$ g2g --help
Execution¶
Download example turtle file:
$ wget https://raw.githubusercontent.com/g2glab/g2g/master/examples/mini-05/mini-05.ttl
mini-05.ttl
@prefix : <http://example.org/> .
:person1 a :Person .
:person2 a :Person .
[] a :Follow ;
:follower :person1 ;
:followed :person2 ;
:since 2017 .
Download example g2g file:
$ wget https://raw.githubusercontent.com/g2glab/g2g/master/examples/mini-05/mini-05.g2g
mini-05.g2g
PREFIX : <http://example.org/>
(p:person)
?p a :Person .
(p1:person)-[:follows {since:s}]->(p2:person)
?f :follower ?p1 ;
:followed ?p2 ;
:since ?s .
Run (mapping against RDF data file):
$ g2g mini-05.g2g mini-05.ttl
Check the output file:
$ more output/mini-05/mini-05.pg
mini-05.pg
"http://example.org/person1" :person
"http://example.org/person2" :person
"http://example.org/person1" -> "http://example.org/person2" :follows since:2017
For further details please refer to:
- G2GML: Description of the mapping language.
- G2G Mapper: Usage of the command line tool.