Module: LogfileInterval::ParsedLine::Parser

Included in:
Base
Defined in:
lib/logfile_interval/parsed_line/parser.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#regex ⇒ Object (readonly)

Returns the value of attribute regex.



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# File 'lib/logfile_interval/parsed_line/parser.rb', line 6

def regex
  @regex
end

Instance Method Details

#add_column(options) ⇒ Object 



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# File 'lib/logfile_interval/parsed_line/parser.rb', line 24

def add_column(options)
  validate_column_options(options)
  options = sanitize_column_options(options)

  name = options[:name]
  columns[name] = options

  define_method(name) do
    @data[name]
  end
end

#columns ⇒ Object 



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# File 'lib/logfile_interval/parsed_line/parser.rb', line 8

def columns
  @columns ||= {}
end

#create_record(line) ⇒ Object 



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# File 'lib/logfile_interval/parsed_line/parser.rb', line 84

def create_record(line)
  record = new(line)
  return record if record.valid?
  return nil
end

#each(&block) ⇒ Object 



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# File 'lib/logfile_interval/parsed_line/parser.rb', line 96

def each(&block)
  columns.each(&block)
end

#parse(line) ⇒ Object

Raises:



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# File 'lib/logfile_interval/parsed_line/parser.rb', line 52

def parse(line)
  raise ConfigurationError, 'There must be at least 1 configured column' unless columns.any?
  raise ConfigurationError, 'A regex must be set' unless regex

  match_data = regex.match(line)
  return nil unless match_data

  data = { skip: false }
  columns.each do |name, options|
    val = match_data[options[:pos]]
    data[name] = convert(val, options[:conversion])
  end

  skip_columns.each do |options|
    val = match_data[options[:pos]]
    if val =~ options[:regex]
      data[:skip] = true
      break
    end
  end

  skip_columns_with_exceptions.each do |options|
    val = match_data[options[:pos]]
    if val =~ options[:regex]
      data[:skip_with_exceptions] = true
      break
    end
  end

  data
end

#set_column_custom_options(column_name, options) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/logfile_interval/parsed_line/parser.rb', line 90

def set_column_custom_options(column_name, options)
  raise ArgumentError, "Invalid column name: #{column_name}" unless columns.has_key?(column_name)
  columns[column_name][:custom_options] = options
end

#set_regex(regex) ⇒ Object 



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# File 'lib/logfile_interval/parsed_line/parser.rb', line 20

def set_regex(regex)
  @regex = regex
end

#skip(options) ⇒ Object 



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# File 'lib/logfile_interval/parsed_line/parser.rb', line 36

def skip(options)
  unless options[:pos] && options[:regex]
    raise ConfigurationError, "skip option must include pos and regex"
  end

  skip_columns << { pos: options[:pos], regex: options[:regex] }
end

#skip_columns ⇒ Object 



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# File 'lib/logfile_interval/parsed_line/parser.rb', line 12

def skip_columns
  @skip_columns ||= []
end

#skip_columns_with_exceptions ⇒ Object 



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# File 'lib/logfile_interval/parsed_line/parser.rb', line 16

def skip_columns_with_exceptions
  @skip_columns_with_exceptions ||= []
end

#skip_with_exceptions(options) ⇒ Object 



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# File 'lib/logfile_interval/parsed_line/parser.rb', line 44

def skip_with_exceptions(options)
  unless options[:pos] && options[:regex]
    raise ConfigurationError, "skip option must include pos and regex"
  end

  skip_columns_with_exceptions << { pos: options[:pos], regex: options[:regex] }
end