Class: Apollo::Crawler::GoogleCrawler

Inherits:
BaseCrawler show all
Defined in:
lib/apollo_crawler/crawler/google_crawler.rb

Constant Summary collapse

@@MATCHER_ITEM = 
"//h3/a"

Instance Method Summary collapse

Methods inherited from BaseCrawler

create_metadoc, #enqueue_url, #etl, fetch, #fetch_document, #initialize, name_re, #process_url, try_get_doc, try_get_url, #url_processed?

Constructor Details

This class inherits a constructor from Apollo::Crawler::BaseCrawler

Instance Method Details

#extract_data(doc) ⇒ Object 



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# File 'lib/apollo_crawler/crawler/google_crawler.rb', line 36

def extract_data(doc)
	res = doc.xpath(@@MATCHER_ITEM).map { | node |
		url = BaseCrawler.try_get_url(self.url, node['href']).to_s
		next if url.nil?

		{ 
			:text => node.text,
			:link => url
		}
	}
end

#extract_links(doc) ⇒ Object 



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# File 'lib/apollo_crawler/crawler/google_crawler.rb', line 48

def extract_links(doc)
	res = doc.xpath("(//td[@class = 'b']/a)[last()]").map { | node |
		res_doc = BaseCrawler.try_get_url(self.url, node['href']).to_s
		next if url.nil?

		{ 
			:link => url
		}
	}
end

#name ⇒ Object 



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# File 'lib/apollo_crawler/crawler/google_crawler.rb', line 28

def name()
	return "Google"
end

#url ⇒ Object 



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# File 'lib/apollo_crawler/crawler/google_crawler.rb', line 32

def url()
	return "http://www.google.com/search?q=ruby"
end