Class: CrawlerParser

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

Constant Summary collapse

FS_LEN =

logger = Logger.new(‘/tmp/crawlerEngine.log’, ‘daily’) logger.level = Logger::INFO

80

Instance Method Summary collapse

Instance Method Details

#parse_rss(sources) ⇒ Object 



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

def parse_rss(sources)
	return if sources.nil? or sources.size.eql?(0)
	#logger.info("Links to crawl >>"+links.to_s)
	puts "Links to crawl >>"+sources.to_s
	sources.uniq!
	sources.each do |source|
		begin
			rss = SimpleRSS.parse open(source.link)
		rescue Exception=>ex
			#logger.error(ex)
			#logger.info("SimpleRSS got unexpected error, rss exit")
			puts ex
		end
		#TODO:
		#puts rss.feed_tags.title
		#puts rss.feed_tags.description

		for item in rss.items
			print_rss_item(item)
			#parse post details
			begin
				doc = Nokogiri::HTML open(item.link.to_s)
			rescue Exception=>ex
				#logger.error(ex)
				#logger.info("Nokogiri got unexpected error")
				puts ex
			end
			return unless doc
			doc.xpath(source.filter).each do |content|
				#puts content.to_s.force_encoding('GB2312')
				#Iconv.iconv("GB2312//IGNORE","UTF-8//IGNORE", content)
				#Iconv.iconv("UTF-8//IGNORE","GB2312//IGNORE", content)
				Post.create(
					:title=>item.title.to_s.force_encoding('UTF-8'),
					:source=>item.link.to_s.force_encoding('UTF-8'),
					:content=>content.to_s.force_encoding('UTF-8'),
					:published_at=>item.pubDate,
					:site_name=>source.site_name,
					:category => source.category)
			end
		end
		#update crawler exec timestamp
		source.update_attribute("crawled_at", Time.now)
	end
end