Class: LogStash::Filters::Imgsize

Inherits:
Base
  • Object
show all
Defined in:
lib/logstash/filters/imgsize.rb

Overview

This example filter will replace the contents of the default message field with whatever you specify in the configuration.

It is only intended to be used as an example.

Instance Method Summary collapse

Instance Method Details

#filter(event) ⇒ Object 



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# File 'lib/logstash/filters/imgsize.rb', line 35

def filter(event)
  @logger.debug? && @logger.debug("Running imgsize filter")
  begin
    image_url = event[@image_url_field]
    width, height = FastImage.size(image_url)
    event.cancel if @drop_on_fail && (width.nil? || height.nil?)
    event[@image_width_field] = width
    event[@image_height_field] = height
  rescue => exception
    @logger.warn("Imgszie exception occurred. Error: #{exception} ; ImageUrl: #{image_url}")
    event.cancel if @drop_on_fail
  end
  filter_matched(event)
end

#register ⇒ Object 



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# File 'lib/logstash/filters/imgsize.rb', line 30

def register
  # Add instance variables
end