Class: Oddb2xml::SwissmedicDownloader

Inherits:
Downloader
  • Object
show all
Includes:
DownloadMethod
Defined in:
lib/oddb2xml/downloader.rb

Constant Summary collapse

BASE_URL = 
"https://www.swissmedic.ch"

Instance Attribute Summary

Attributes inherited from Downloader

#agent, #file2save, #type, #url

Instance Method Summary collapse

Methods inherited from Downloader

#init, #report_download

Constructor Details

#initialize(type = :orphan, options = {}) ⇒ SwissmedicDownloader

Returns a new instance of SwissmedicDownloader.



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# File 'lib/oddb2xml/downloader.rb', line 316

def initialize(type = :orphan, options = {})
  url = BASE_URL + "/swissmedic/de/home/services/listen_neu.html"
  doc = Nokogiri::HTML(Oddb2xml.uri_open(url))
  @type = type
  @options = options
  case @type
  when :orphan
    @direct_url_link = BASE_URL + doc.xpath("//a").find { |x| /Humanarzneimittel mit Status Orphan Drug/.match(x.children.text) }.attributes["href"].value
  when :package
    @direct_url_link = BASE_URL + doc.xpath("//a").find { |x| /Zugelassene Packungen/.match(x.children.text) }.attributes["href"].value
  end
end

Instance Method Details

#download ⇒ Object 



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# File 'lib/oddb2xml/downloader.rb', line 329

def download
  @file2save = File.join(DOWNLOADS, "swissmedic_#{@type}.xlsx")
  report_download(@url, @file2save)
  if @options[:calc] && @options[:skip_download] && File.exist?(@file2save) && ((Time.now - File.ctime(@file2save)).to_i < 24 * 60 * 60) && Oddb2xml.valid_zip?(@file2save)
    Oddb2xml.log "SwissmedicDownloader #{__LINE__}: Skip downloading #{@file2save} #{File.size(@file2save)} bytes"
    return File.expand_path(@file2save)
  end
  begin
    @url = @direct_url_link
    download_as(@file2save, "w+")
    # The Swissmedic file is an .xlsx (a ZIP). Downloads through scanning
    # proxies are sometimes truncated (valid header, missing EOCD), which
    # would later crash RubyXL with a cryptic rubyzip error. Verify the
    # archive is complete and just fetch it again if not. (issue #121)
    unless Oddb2xml.valid_zip?(@file2save)
      raise Oddb2xml::IncompleteDownloadError,
        "Swissmedic #{@type} xlsx is empty or truncated (#{File.size(@file2save)} bytes)"
    end
    if @options[:artikelstamm]
      # ssconvert is in the package gnumeric (Debian)
      cmd = "ssconvert '#{@file2save}' '#{File.join(DOWNLOADS, File.basename(@file2save).sub(/\.xls.*/, ".csv"))}' 2> /dev/null"
      Oddb2xml.log(cmd)
      system(cmd)
    end
    return File.expand_path(@file2save)
  rescue Timeout::Error, Errno::ETIMEDOUT, Oddb2xml::IncompleteDownloadError => error
    if retrievable?
      Oddb2xml.log("Retrying Swissmedic #{@type} download: #{error.message}")
      retry
    end
    raise
  ensure
    Oddb2xml.download_finished(@file2save, false)
  end
  File.expand_path(@file2save)
end