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Fluent::TextParser

Constants

TEMPLATE_REGISTRY

Attributes

estimate_current_event[RW]

SET false BEFORE CONFIGURE, to return nil when time not parsed ‘configure()’ may raise errors for unexpected configurations

parser[R]

Public Class Methods

new() click to toggle source
# File lib/fluent/parser.rb, line 650
def initialize
  @parser = nil
  @estimate_current_event = nil
end
register_template(name, regexp_or_proc, time_format=nil) click to toggle source
# File lib/fluent/parser.rb, line 639
def self.register_template(name, regexp_or_proc, time_format=nil)
  if regexp_or_proc.is_a?(Regexp)
    regexp = regexp_or_proc
    factory = Proc.new { RegexpParser.new(regexp, {'time_format'=>time_format}) }
  else
    factory = regexp_or_proc
  end

  TEMPLATE_REGISTRY.register(name, factory)
end

Public Instance Methods

configure(conf, required=true) click to toggle source
# File lib/fluent/parser.rb, line 661
def configure(conf, required=true)
  format = conf['format']

  if format == nil
    if required
      raise ConfigError, "'format' parameter is required"
    else
      return nil
    end
  end

  if format[0] == // && format[format.length-1] == //
    # regexp
    begin
      regexp = Regexp.new(format[1..-2])
      if regexp.named_captures.empty?
        raise "No named captures"
      end
    rescue
      raise ConfigError, "Invalid regexp '#{format[1..-2]}': #{$!}"
    end

    @parser = RegexpParser.new(regexp, conf)
  else
    # built-in template
    begin
      factory = TEMPLATE_REGISTRY.lookup(format)
    rescue ConfigError => e # keep same error message
      raise ConfigError, "Unknown format template '#{format}'"
    end
    @parser = factory.call
  end

  if ! @estimate_current_event.nil? && @parser.respond_to?(:'estimate_current_event=')
    @parser.estimate_current_event = @estimate_current_event
  end

  if @parser.respond_to?(:configure)
    @parser.configure(conf)
  end

  return true
end
parse(text, &block) click to toggle source
# File lib/fluent/parser.rb, line 705
def parse(text, &block)
  if block
    @parser.call(text, &block)
  else # keep backward compatibility. Will be removed at v1
    return @parser.call(text)
  end
end

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