Class: RSScache

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(rsslist = nil, filepath: '.', debug: true) ⇒ RSScache

Returns a new instance of RSScache.



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# File 'lib/rsscache.rb', line 16

def initialize(rsslist=nil, filepath: '.', debug: true)

  rsslist ||= File.join(filepath, 'rsscache.xml')
  @dx = open_dynarex(rsslist)
  @filepath = filepath
  @cache_filepath = File.join(filepath, 'rsscache')
  FileUtils.mkdir_p @cache_filepath
  
  @err_report = []
  @debug = debug

end

Instance Attribute Details

#dx ⇒ Object (readonly)

Returns the value of attribute dx.



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# File 'lib/rsscache.rb', line 14

def dx
  @dx
end

#err_report ⇒ Object (readonly)

Returns the value of attribute err_report.



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# File 'lib/rsscache.rb', line 14

def err_report
  @err_report
end

Instance Method Details

#import(raw_s) ⇒ Object

Import a list of URLs into the Dynarex document. URLs which already exist are ignored.



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# File 'lib/rsscache.rb', line 32

def import(raw_s)
  
  s, _ = RXFHelper.read(raw_s)
  
  s.strip.lines.each do |raw_url|

    url = raw_url.chomp
    puts 'url : '  + url.inspect if @debug
    r = @dx.find_by_url url.chomp

    if r then
      puts 'exists' if @debug
    else
      puts 'new URL found' if @debug
      @dx.create url: url
    end
    
  end    
  
  save()
end

#refresh ⇒ Object Also known as: update

refresh each RSS feed



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# File 'lib/rsscache.rb', line 56

def refresh
  
  @err_report = []

  puts '@dx.to_xml'  + @dx.to_xml(pretty: true)  if @debug
  
  @dx.all.each do |feed|
    
    puts 'feed:' + feed.inspect if @debug
    
    if feed.next_refresh.empty? or \
                           Time.now >= Time.parse(feed.next_refresh) then

      any_new_items = updates? feed

      feed.refresh_rate = if feed.refresh_rate.empty? then

        10 

      else

        if Time.now > Time.parse(feed.next_refresh) + \
                        feed.refresh_rate.to_i and not any_new_items then
          feed.refresh_rate.to_i + 10
        end

      end


      feed.next_refresh = Time.now + feed.refresh_rate.to_i * 60


    else

      feed.refresh_rate = feed.refresh_rate.to_i - 10 if feed.refresh_rate.to_i > 10

    end
  end
  
  puts '@dx: ' + @dx.to_xml(pretty: true) if @debug
  save()

end

#save ⇒ Object 



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# File 'lib/rsscache.rb', line 102

def save()

  @dx.save File.join(@filepath, 'rsscache.xml')
  File.write File.join(@filepath, 'rsscache.txt'), @dx.to_s

end