Class: Charrington::TransformRedshift

Inherits:
Object
  • Object
show all
Includes:
Service
Defined in:
lib/logstash/outputs/charrington/transform_redshift.rb

Overview

Inserts and modifies a Postgres/Redshift database

Constant Summary collapse

Error = 
Class.new(StandardError)
EventNil = 
Class.new(Error)
TableNameNil = 
Class.new(Error)
ColumnBlacklist = 
Class.new(Error)
KEY_FILTER_BLACKLIST = 
%w[host path jwt sequence].freeze
KEY_RAISE_BLACKLIST = 
['inserted_at'].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Service

included

Constructor Details

#initialize(event) ⇒ TransformRedshift

Returns a new instance of TransformRedshift.

Raises:



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# File 'lib/logstash/outputs/charrington/transform_redshift.rb', line 21

def initialize(event)
  raise EventNil, 'Event is nil' if event.nil?

  event = event.to_hash
  @event = drop_keys(event)
  @top_level_keys = @event.keys
  check_blacklist
end

Instance Attribute Details

#event ⇒ Object

Returns the value of attribute event.



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# File 'lib/logstash/outputs/charrington/transform_redshift.rb', line 10

def event
  @event
end

#top_level_keys ⇒ Object (readonly)

Returns the value of attribute top_level_keys.



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# File 'lib/logstash/outputs/charrington/transform_redshift.rb', line 11

def top_level_keys
  @top_level_keys
end

Instance Method Details

#call ⇒ Object 



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# File 'lib/logstash/outputs/charrington/transform_redshift.rb', line 30

def call
  handle_event_key(event)
  add_id_to_event(event)

  handle_key_transform(event, 'anonymous_id', 'anonymous_user')
  handle_key_transform(event, 'sent_at', 'published_at')
  handle_key_transform(event, 'original_timestamp', 'sent_at')
  handle_key_transform(event, 'received_at', 'sent_at')
  handle_key_transform(event, 'timestamp', 'sent_at')

  handle_meta_section(event)

  transform_session_stuff(event)

  event.delete_if { |k, _v| %w[session meta published_at anonymous_user].include?(k) }

  event
end