Class: Hobix::Out::RDF

Inherits:
BaseOutput show all
Defined in:
lib/hobix/out/rdf.rb

Instance Method Summary collapse

Methods inherited from BasePlugin

inherited, start

Constructor Details

#initialize(weblog) ⇒ RDF

Returns a new instance of RDF.



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# File 'lib/hobix/out/rdf.rb', line 20

def initialize(weblog)
    @path = weblog.skel_path
end

Instance Method Details

#extension ⇒ Object 



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# File 'lib/hobix/out/rdf.rb', line 23

def extension
    "rdf"
end

#load(file_name, vars) ⇒ Object 



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# File 'lib/hobix/out/rdf.rb', line 26

def load(file_name, vars)
    rdfdoc = REXML::Document.new(<<EOXML)
<rdf:RDF
  xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
  xmlns:dc="http://purl.org/dc/elements/1.1/"
  xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
  xmlns:admin="http://webns.net/mvcb/"
  xmlns:cc="http://web.resource.org/cc/"
  xmlns="http://purl.org/rss/1.0/">
<channel>
<title></title>
<link></link>
<description></description>
<dc:language>en-us</dc:language>
<!--<dc:creator></dc:creator>-->
<dc:date></dc:date>
<admin:generatorAgent rdf:resource="http://hobix.com/?v=#{ Hobix::VERSION }" />
<sy:updatePeriod>hourly</sy:updatePeriod>
<sy:updateFrequency>1</sy:updateFrequency>
<sy:updateBase>2000-01-01T12:00+00:00</sy:updateBase>

<items>
    <rdf:Seq></rdf:Seq>
</items>

</channel>
</rdf:RDF>
EOXML
    rdfdoc << REXML::XMLDecl.new
    rdfdoc.elements['/rdf:RDF/channel/'].attributes['rdf:about'] = vars[:weblog].link
    rdfdoc.elements['/rdf:RDF/channel/title'].text = vars[:weblog].title
    rdfdoc.elements['/rdf:RDF/channel/link'].text = vars[:weblog].link
    rdfdoc.elements['/rdf:RDF/channel/description'].text = vars[:weblog].tagline
    rdfdoc.elements['/rdf:RDF/channel/dc:date'].text = Time.now.utc.strftime( "%Y-%m-%dT%H:%M:%S+00:00" )
    (vars[:entries] || [vars[:entry]]).each do |e|
        ele = REXML::Element.new 'item'
        ele.attributes['rdf:about'] = "#{e.link}"
        if e.title
          ele_title = REXML::Element.new 'title'
          ele_title.text = e.title
          ele << ele_title
        end
        ele_link = REXML::Element.new 'link'
        ele_link.text = "#{e.link}"
        ele << ele_link
        ele_subject = REXML::Element.new 'dc:subject'
        ele_subject.text = e.section_id
        ele << ele_subject
        ele_creator = REXML::Element.new 'dc:creator'
        ele_creator.text = vars[:weblog].authors[e.author]['name']
        ele << ele_creator
        ele_pubDate = REXML::Element.new 'dc:date'
        ele_pubDate.text = e.created.dup.utc.strftime( "%Y-%m-%dT%H:%M:%S+00:00" )
        ele << ele_pubDate
        ele_desc = REXML::Element.new 'description'
        if !e.summary
          ele_desc.text = e.content.to_html.gsub(/img src="\//, "img src=\"#{vars[:weblog].link}")
        else
          ele_desc.text = e.summary
        end
        ele << ele_desc
        rdfdoc.elements['/rdf:RDF'].add ele
        # also add an element to the <rdf:Seq> sequence in <items>
        li = REXML::Element.new 'rdf:li'
        li.attributes['rdf:resource'] = "#{e.link}"
        rdfdoc.elements['/rdf:RDF/channel/items/rdf:Seq'] << li
    end
    rdfdoc.to_s
end