Class: PubliSci::Store

Inherits:
Object
  • Object
show all
Includes:
Query
Defined in:
lib/publisci/store.rb

Overview

handles connection and messaging to/from the triple store

Instance Method Summary collapse

Methods included from Query

#execute, #execute_from_file, #property_names, #property_values, #row_names, #vocabulary

Constructor Details

#initialize(options = {}) ⇒ Store

Returns a new instance of Store.



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# File 'lib/publisci/store.rb', line 39

def initialize(options={})
  @options = defaults.merge(options)
end

Instance Method Details

#add(file, graph) ⇒ Object 



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# File 'lib/publisci/store.rb', line 14

def add(file,graph)
  if @options[:type] == :graph
    throw "please provide an RDF::Repository" unless graph.is_a? RDF::Repository
    graph.load(file)
    @store = graph
    @store
  elsif @options[:type] == :fourstore
    if @options[:replace]
      `curl -T #{file} -H 'Content-Type: application/x-turtle' #{@options[:url]}/data/http%3A%2F%2Frqtl.org%2F#{graph}`
    else
      `curl --data-urlencode data@#{file} -d 'graph=http%3A%2F%2Frqtl.org%2F#{graph}' -d 'mime-type=application/x-turtle' #{@options[:url]}/data/`
    end
  end
end

#add_all(dir, graph, pattern = nil) ⇒ Object 



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# File 'lib/publisci/store.rb', line 29

def add_all(dir, graph, pattern=nil)
  pattern = /.+\.ttl/ if pattern == :turtle || pattern == :ttl

  files = Dir.entries(dir) - %w(. ..)
  files = files.grep(pattern) if pattern.is_a? Regexp
  nfiles = files.size
  n = 0
  files.each{|file| puts file + " #{n+=1}/#{nfiles} files"; puts add(file,graph)}
end

#defaults ⇒ Object 



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# File 'lib/publisci/store.rb', line 6

def defaults
  {
    type: :fourstore,
    url: "http://localhost:8080", #TODO port etc should eventually be extracted from URI if given
    replace: false
  }
end

#query(string) ⇒ Object 



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# File 'lib/publisci/store.rb', line 43

def query(string)
  # execute(string, )
  if @options[:type] == :graph
    execute(string, @store, :graph)
  elsif @options[:type] == :fourstore
    execute(string, @options[:url], :fourstore)
  end
end

#url ⇒ Object 



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# File 'lib/publisci/store.rb', line 52

def url
  @options[:url]
end