Class: RedisScript

Inherits:
Object
  • Object
show all
Defined in:
lib/rails_observatory/redis/time_series/insertion.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(lua_string) ⇒ RedisScript

Returns a new instance of RedisScript.



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# File 'lib/rails_observatory/redis/time_series/insertion.rb', line 16

def initialize(lua_string)
  @script = lua_string
end

Class Method Details

.redis ⇒ Object 



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# File 'lib/rails_observatory/redis/time_series/insertion.rb', line 8

def self.redis
  Rails.configuration.rails_observatory.redis
end

Instance Method Details

#call(*args) ⇒ Object 



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# File 'lib/rails_observatory/redis/time_series/insertion.rb', line 20

def call(*args)
  @sha1 ||= load_script
  redis.call("EVALSHA", @sha1, 0, *args)
rescue => e
  if e.message =~ /NOSCRIPT/
    @sha1 = load_script
    retry
  else
    raise e
  end
end

#load_script ⇒ Object 



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# File 'lib/rails_observatory/redis/time_series/insertion.rb', line 32

def load_script
  redis.call('SCRIPT', 'LOAD', @script)
end

#redis ⇒ Object 



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# File 'lib/rails_observatory/redis/time_series/insertion.rb', line 12

def redis
  self.class.redis
end