Class: Rena::URIRef

Inherits:
Object
  • Object
show all
Defined in:
lib/rena/uriref.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(string) ⇒ URIRef

Returns a new instance of URIRef.



9
10
11
12
13
14
15
16
17
18
 
# File 'lib/rena/uriref.rb', line 9

def initialize (string)
  self.test_string(string)
  @uri = Addressable::URI.parse(string)
  if @uri.relative?
    raise UriRelativeException, "<" + @uri.to_s + ">"
  end
  if !@uri.to_s.match(/^javascript/).nil?
    raise "Javascript pseudo-URIs are not acceptable"
  end
end

Instance Attribute Details

#uri ⇒ Object

Returns the value of attribute uri.



8
9
10
 
# File 'lib/rena/uriref.rb', line 8

def uri
  @uri
end

Instance Method Details

#==(other) ⇒ Object 



30
31
32
 
# File 'lib/rena/uriref.rb', line 30

def == (other)
  return true if @uri == other.uri
end

#load_graph ⇒ Object 



50
51
52
53
 
# File 'lib/rena/uriref.rb', line 50

def load_graph
  get = Net::HTTP.start(@uri.host, @uri.port) {|http| [:xml, http.get(@uri.path)] }
  return Rena::RdfXmlParser.new(get[1].body, @uri.to_s).graph if get[0] == :xml
end

#short_name ⇒ Object 



20
21
22
23
24
25
26
27
28
 
# File 'lib/rena/uriref.rb', line 20

def short_name
  if @uri.fragment()
    return @uri.fragment()
  elsif @uri.path.split("/").last.class == String and @uri.path.split("/").last.length > 0
    return @uri.path.split("/").last
  else
    return false
  end
end

#test_string(string) ⇒ Object 



42
43
44
45
46
47
48
 
# File 'lib/rena/uriref.rb', line 42

def test_string (string)
  string.to_s.each_byte do |b|
    if b >= 0 and b <= 31
      raise "URI must not contain control characters"
    end
  end
end

#to_ntriples ⇒ Object 



38
39
40
 
# File 'lib/rena/uriref.rb', line 38

def to_ntriples
  "<" + @uri.to_s + ">"
end

#to_s ⇒ Object 



34
35
36
 
# File 'lib/rena/uriref.rb', line 34

def to_s
  @uri.to_s
end