Class: Fluent::Plugin::URIParserFilter

Inherits:
Filter
  • Object
show all
Defined in:
lib/fluent/plugin/filter_uri_parser.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ URIParserFilter

Returns a new instance of URIParserFilter.



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# File 'lib/fluent/plugin/filter_uri_parser.rb', line 21

def initialize
  super
  require "addressable/uri"
end

Instance Method Details

#filter(tag, time, record) ⇒ Object 



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# File 'lib/fluent/plugin/filter_uri_parser.rb', line 26

def filter(tag, time, record)
  raw_value = record[@key_name]

  if raw_value.nil?
    if @emit_invalid_record_to_error
      router.emit_error_event(tag, time, record, ArgumentError.new("#{@key_name} does not exist"))
    end
    return @ignore_key_not_exist ? nil : record
  end

  begin
    uri = Addressable::URI.parse(raw_value)

    values = {}
    values[@out_key_scheme] = uri.scheme if @out_key_scheme
    values[@out_key_host] = uri.host if @out_key_host
    values[@out_key_port] = uri.inferred_port if @out_key_port
    values[@out_key_path] = uri.path if @out_key_path
    values[@out_key_query] = uri.query if @out_key_query
    values[@out_key_fragment] = uri.fragment if @out_key_fragment
    values.reject! {|_, v| v.nil? } if @ignore_nil

    unless values.empty?
      if @inject_key_prefix
        values = Hash[values.map{|k,v| [ @inject_key_prefix + k, v ]}]
      end
      r = @hash_value_field ? { @hash_value_field => values } : values
      record = record.merge(r)
    end
  rescue => e
    log.warn "parse failed #{e.message}" unless @suppress_parse_error_log
  end

  return record
end