Class: JSONVAT::FileCacheBackend

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path = "/tmp/jsonvat.json") ⇒ FileCacheBackend

Returns a new instance of FileCacheBackend.



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# File 'lib/json_vat/file_cache_backend.rb', line 6

def initialize(path = "/tmp/jsonvat.json")
  @path = path
end

Instance Attribute Details

#path ⇒ Object

Returns the value of attribute path.



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# File 'lib/json_vat/file_cache_backend.rb', line 4

def path
  @path
end

Instance Method Details

#invalid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/json_vat/file_cache_backend.rb', line 20

def invalid?
  modified_time = current_modified_time

  if modified_time != @last_modified_time
    @last_modified_time = modified_time
    true
  else
    false
  end
end

#read ⇒ Object 



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# File 'lib/json_vat/file_cache_backend.rb', line 10

def read
  File.read(self.path)
rescue Errno::ENOENT
  nil
end

#write(data) ⇒ Object 



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# File 'lib/json_vat/file_cache_backend.rb', line 16

def write(data)
  File.open(self.path, 'w') { |f| f.write(data) }
end