Class: Wrapbox::LogFetcher::Papertrail

Inherits:
Object
  • Object
show all
Defined in:
lib/wrapbox/log_fetcher/papertrail.rb

Constant Summary collapse

STOP_WAIT_TIMELIMIT = 
10

Instance Method Summary collapse

Constructor Details

#initialize(query: nil, delay: 2, **options) ⇒ Papertrail

Returns a new instance of Papertrail.



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# File 'lib/wrapbox/log_fetcher/papertrail.rb', line 6

def initialize(query: nil, delay: 2, **options)
  begin
    require 'papertrail/cli'
  rescue LoadError
    $stderr.puts "Require papertrail gem"
    exit 1
  end

  # see. https://github.com/papertrail/papertrail-cli/blob/master/lib/papertrail/cli.rb
  @query = query
  @delay = delay
  @options = options.reject { |_, v| v.nil? }
end

Instance Method Details

#main_loop ⇒ Object 



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# File 'lib/wrapbox/log_fetcher/papertrail.rb', line 30

def main_loop
  papertrail = ::Papertrail::Cli.new
  connection_options = papertrail.options.merge(@options).merge(follow: true)
  connection = ::Papertrail::Connection.new(connection_options)

  query_options = {}

  if @options[:system]
    query_options[:system_id] = connection.find_id_for_source(@options[:system])
    unless query_options[:system_id]
      $stderr.puts "System \"#{@options[:system]}\" not found"
    end
  end

  if @options[:group]
    query_options[:group_id] = connection.find_id_for_group(@options[:group])
    unless query_options[:group_id]
      $stderr.puts "Group \"#{@options[:group]}\" not found"
    end
  end

  if @options[:search]
    search = connection.find_search(@options[:search], @query_options[:group_id])
    unless search
      $stderr.puts "Search \"#{@options[:search]}\" not found"
    end

    query_options[:group_id] ||= search['group_id']
    @query = search['query']
  end

  @query ||= ''

  search_query = ::Papertrail::SearchQuery.new(connection, @query, query_options)

  until @stop do
    search_query.next_results_page.events.each do |event|
      next if event.received_at < @started_at
      papertrail.display_result(event)
    end
    sleep @delay
  end
end

#run(task:) ⇒ Object 



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# File 'lib/wrapbox/log_fetcher/papertrail.rb', line 20

def run(task:)
  @started_at = Time.now
  @loop_thread = Thread.start(&method(:main_loop))
end

#stop ⇒ Object 



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# File 'lib/wrapbox/log_fetcher/papertrail.rb', line 25

def stop
  @stop = true
  @loop_thread&.join(STOP_WAIT_TIMELIMIT)
end