Class: Fluent::DecodeLocationOutput

Inherits:
Output
  • Object
show all
Defined in:
lib/fluent/plugin/out_decode_location.rb

Constant Summary collapse

SEPARATOR = 
'a'
SEPARATOR_DOT = 
'b'
SEPARATOR_DASH = 
'c'

Instance Method Summary collapse

Constructor Details

#initialize ⇒ DecodeLocationOutput

Returns a new instance of DecodeLocationOutput.



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# File 'lib/fluent/plugin/out_decode_location.rb', line 12

def initialize
  super
  require 'base62'
  require 'base64'
end

Instance Method Details

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/out_decode_location.rb', line 23

def configure(conf)
  super
end

#decode_location(record) ⇒ Object 



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# File 'lib/fluent/plugin/out_decode_location.rb', line 49

def decode_location(record)
  source = record

  key.split('.').each do |v|
    if source[v] || source[v.to_sym]
      source = source[v] ? source[v] : source[v.to_sym]
    else
      record['break'] = true
      source = nil
      break
    end
  end

  if source
    hash = {}
    city = ''

    if source.include? ":|"
      exploded = source.split(":|")
      source = exploded[0]
      city = exploded[1]

      if city.is_a?(String)
        city = Base64.decode64(city)
        city.force_encoding('utf-8')
      end
    end

    array = source.to_i.base62_encode.gsub(SEPARATOR_DASH, '-').gsub(SEPARATOR_DOT, '.').split(SEPARATOR)

    hash['lat'] = array[0] ? array[0] : ''
    hash['lng'] = array[1] ? array[1] : ''
    hash['continent'] = array[2] ? array[2] : ''
    hash['countryCode'] = array[3] ? array[3] : ''
    hash['province'] = array[4] ? array[4] : ''
    hash['city'] = city

    target = sub_key ? (record[sub_key] ||= {}) : record

    target.merge!(hash)
  end
  return record
rescue => e
  log.warn("out_decode_location: error_class:#{e.class} error_message:#{e.message} tag:#{tag} record:#{record} bactrace:#{e.backtrace.first}")
end

#emit(tag, es, chain) ⇒ Object 



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# File 'lib/fluent/plugin/out_decode_location.rb', line 35

def emit(tag, es, chain)
  es.each {|time, record|
    t = tag.dup
    new_record = decode_location(record)

    t = @tag_prefix + t unless @tag_prefix.nil?

    Engine.emit(t, time, new_record)
  }
  chain.next
rescue => e
  log.warn("out_decode_location: error_class:#{e.class} error_message:#{e.message} tag:#{tag} es:#{es} bactrace:#{e.backtrace.first}")
end

#shutdown ⇒ Object 



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# File 'lib/fluent/plugin/out_decode_location.rb', line 31

def shutdown
  super
end

#start ⇒ Object 



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# File 'lib/fluent/plugin/out_decode_location.rb', line 27

def start
  super
end