Class: WebCrawler::CacheAdapter::File

Inherits:
Base
  • Object
show all
Defined in:
lib/web_crawler/cache_adapter/file.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Base

#expire_within, #expired?, #prepare_response, #set

Constructor Details

#initialize(dir) ⇒ File

Returns a new instance of File.



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# File 'lib/web_crawler/cache_adapter/file.rb', line 9

def initialize(dir)
  @dir = Pathname.new dir
end

Instance Attribute Details

#dir ⇒ Object (readonly)

Returns the value of attribute dir.



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# File 'lib/web_crawler/cache_adapter/file.rb', line 7

def dir
  @dir
end

Instance Method Details

#exist?(uri) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/web_crawler/cache_adapter/file.rb', line 23

def exist? uri
  file(uri).exist?
end

#expire!(response) ⇒ Object 



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# File 'lib/web_crawler/cache_adapter/file.rb', line 32

def expire!(response)
  file(response).delete
end

#file(response_or_url) ⇒ Object 



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# File 'lib/web_crawler/cache_adapter/file.rb', line 27

def file(response_or_url)
  url = response_or_url.url rescue response_or_url
  dir.join(uri_to_filename(url))
end

#get(uri) ⇒ Object 



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# File 'lib/web_crawler/cache_adapter/file.rb', line 17

def get uri
  response = read(uri)
  expire!(response) if expired?(response)
  response
end

#put(response) ⇒ Object 



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# File 'lib/web_crawler/cache_adapter/file.rb', line 13

def put response
  response.tap { write(super) }
end