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hook.io-sparql/lib/hook.io-dbpedia.coffee
J.Fernando Sánchez a75a16dee0 First commit
2012-03-15 05:34:22 +01:00

42 lines
1.4 KiB
CoffeeScript

# Imports
sparql = require 'sparql'
Hook = require('hook.io').Hook
examplequery = "
SELECT DISTINCT ?label ?abstract ?population
WHERE { ?place rdf:type dbpedia-owl:PopulatedPlace.
?place foaf:name ?label.
?place dbpprop:population ?population.
OPTIONAL{
?place dbpedia-owl:abstract ?abstract.
FILTER langMatches( lang(?abstract), 'en')
}
} LIMIT 10"
class DBPediaHook extends Hook
constructor: (options) ->
self = this
Hook.call(self, options)
@client = new sparql.Client 'http://dbpedia.org/sparql'
#Set some initial namespaces
@client.prefix_map.dbprop = 'http://dbpedia.org/property/'
@client.prefix_map.dbpedia = 'http://dbpedia.org/resource/'
@client.prefix_map.rdf = 'http://www.w3.org/1999/02/22-rdf-syntax-ns#'
@client.prefix_map.dbpedia-owl = 'http://dbpedia.org/ontology/'
self.on 'hook::ready', ->
self.on '*::query', (data,fn) ->
@queryDBPedia data , (res) ->
console.log res
fn res
console.log "Created"
queryDBPedia: (query, cb) ->
console.log ">>Going to query"
@client.rows query, (err, res) ->
cb res
exports.DBPediaHook = DBPediaHook