Class: RXFReader

Inherits:
Object
  • Object
show all
Defined in:
lib/rxfreader.rb,
lib/rxfreader.rb

Class Method Summary collapse

Class Method Details

.exists?(filename) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/rxfreader.rb', line 34

def self.exists?(filename)

  type = self.filetype(filename)

  filex = case type
  when :file
    File
  when :dfs
    DfsFile
  else
    nil
  end

  return nil unless filex

  filex.exists? filename

end

.filetype(x) ⇒ Object 



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# File 'lib/rxfreader.rb', line 53

def self.filetype(x)

  return :string if x.lines.length > 1

  case x
  when /^https?:\/\//
    :http
  when /^dfs:\/\//
    :dfs
  when /^file:\/\//
    :file
  else

    if File.exists?(x) then
      :file
    else
      :text
    end

  end
end

.read(x, h = {}) ⇒ Object

Raises:



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# File 'lib/rxfreader.rb', line 75

def self.read(x, h={})

  opt = {debug: false, auto: false}.merge(h)

  debug = opt[:debug]

  raise RXFReaderException, 'nil found, expected a string' if x.nil?

  if x.class.to_s =~ /Rexle$/ then

    [x.xml, :rexle]

  elsif x.strip[/^<(\?xml|[^\?])/] then

    [x, :xml]

  elsif x.lines.length == 1 then

    if x[/^https?:\/\//] then

      puts 'before GPDRequest'.info if debug

      r = if opt[:username] and opt[:password] then
        GPDRequest.new(opt[:username], opt[:password]).get(x)
      else
        response = RestClient.get(x)
      end

      case r.code
      when '404'
        raise(RXFReaderException, "404 %s not found" % x)
      when '401'
        raise(RXFReaderException, "401 %s unauthorized access" % x)
      end

      [r.body, :url]

    elsif  x[/^dfs:\/\//] then

      r = DfsFile.read(x).force_encoding('UTF-8')
      [r, :dfs]


    elsif x[/^file:\/\//] or File.exists?(x) then

      puts 'RXFHelper.read before File.read' if debug
      contents = File.read(File.expand_path(x.sub(%r{^file://}, '')))

      [contents, :file]

    elsif x =~ /\s/
      [x, :text]
    elsif DfsFile.exists?(x)
      [DfsFile.read(x).force_encoding('UTF-8'), :dfs]
    else
      [x, :unknown]
    end

  else

    [x, :unknown]
  end
end

.reveal(uri_str, a = []) ⇒ Object 



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# File 'lib/rxfreader.rb', line 139

def self.reveal(uri_str, a=[])

  response = Net::HTTP.get_response(URI.parse(uri_str))
  url = case response
    when Net::HTTPRedirection then response['location']
  end

  return a << uri_str if url.nil?

  reveal(url, a << uri_str)
end