Class: Graphiti::Util::CacheDebug

Inherits:
Object
  • Object
show all
Defined in:
lib/graphiti/util/cache_debug.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(proxy) ⇒ CacheDebug

Returns a new instance of CacheDebug.



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# File 'lib/graphiti/util/cache_debug.rb', line 6

def initialize(proxy)
  @proxy = proxy
end

Instance Attribute Details

#proxy ⇒ Object (readonly)

Returns the value of attribute proxy.



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# File 'lib/graphiti/util/cache_debug.rb', line 4

def proxy
  @proxy
end

Instance Method Details

#added_segments ⇒ Object 



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# File 'lib/graphiti/util/cache_debug.rb', line 72

def added_segments
  changes[0] - changes[1]
end

#analyze {|_self| ... } ⇒ Object

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/graphiti/util/cache_debug.rb', line 34

def analyze
  yield self
  save
end

#change_percentage ⇒ Object 



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# File 'lib/graphiti/util/cache_debug.rb', line 51

def change_percentage
  return 0 if request_count == 0
  (miss_count.to_i / request_count.to_f * 100).round(1)
end

#changed_key? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/graphiti/util/cache_debug.rb', line 64

def changed_key?
  last_version[:cache_key] != proxy.cache_key_with_version && !new_key?
end

#changes ⇒ Object 



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# File 'lib/graphiti/util/cache_debug.rb', line 76

def changes
  sub_keys_old = last_version[:cache_key]&.scan(/\w+\/query-[a-z0-9-]+\/args-[a-z0-9-]+/).to_a || []
  sub_keys_new = current_version[:cache_key]&.scan(/\w+\/query-[a-z0-9-]+\/args-[a-z0-9-]+/).to_a || []

  [sub_keys_old, sub_keys_new]
end

#current_version ⇒ Object 



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# File 'lib/graphiti/util/cache_debug.rb', line 22

def current_version
  @current_version ||= {
    cache_key: proxy.cache_key_with_version,
    version: proxy.updated_at,
    expires_in: proxy.cache_expires_in,
    etag: proxy.etag,
    miss_count: last_version[:miss_count].to_i + (changed_key? ? 1 : 0),
    hit_count: last_version[:hit_count].to_i + (!changed_key? && !new_key? ? 1 : 0),
    request_count: last_version[:request_count].to_i + (last_version.present? ? 1 : 0)
  }
end

#hit_count ⇒ Object 



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# File 'lib/graphiti/util/cache_debug.rb', line 47

def hit_count
  current_version[:hit_count]
end

#key ⇒ Object 



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# File 'lib/graphiti/util/cache_debug.rb', line 18

def key
  "graphiti:debug/#{name}"
end

#last_version ⇒ Object 



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# File 'lib/graphiti/util/cache_debug.rb', line 10

def last_version
  @last_version ||= Graphiti.cache.read(key) || {}
end

#miss_count ⇒ Object 



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# File 'lib/graphiti/util/cache_debug.rb', line 43

def miss_count
  current_version[:miss_count]
end

#name ⇒ Object 



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# File 'lib/graphiti/util/cache_debug.rb', line 14

def name
  "#{Graphiti.context[:object]&.request&.method} #{Graphiti.context[:object]&.request&.url}"
end

#new_key? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/graphiti/util/cache_debug.rb', line 60

def new_key?
  last_version[:cache_key].blank? && proxy.cache_key_with_version
end

#removed_segments ⇒ Object 



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# File 'lib/graphiti/util/cache_debug.rb', line 68

def removed_segments
  changes[1] - changes[0]
end

#request_count ⇒ Object 



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# File 'lib/graphiti/util/cache_debug.rb', line 39

def request_count
  current_version[:request_count]
end

#save ⇒ Object 



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# File 'lib/graphiti/util/cache_debug.rb', line 83

def save
  Graphiti.cache.write(key, current_version)
end

#volatile? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/graphiti/util/cache_debug.rb', line 56

def volatile?
  change_percentage > 50
end