Class: Flare::Tools::Cli::Dumpkey

Inherits:
SubCommand show all
Includes:
IndexServerConfig, Flare::Tools::Common, Util::Constant, Util::Conversion
Defined in:
lib/flare/tools/cli/dumpkey.rb

Constant Summary

Constants included from IndexServerConfig

IndexServerConfig::Entity, IndexServerConfig::FLARE_INDEX_SERVER, IndexServerConfig::FLARE_INDEX_SERVERS

Constants included from Util::Constant

Util::Constant::DefalutBwlimit, Util::Constant::DefaultIndexServerName, Util::Constant::DefaultIndexServerPort, Util::Constant::DefaultNodePort, Util::Constant::DefaultTimeout, Util::Constant::STATUS_NG, Util::Constant::STATUS_OK

Constants included from Flare::Tools::Common

Flare::Tools::Common::NodeListFormat, Flare::Tools::Common::NodeListHeader

Constants inherited from SubCommand

SubCommand::S_NG, SubCommand::S_OK

Constants included from Util::Interruption

Util::Interruption::InterruptionTargets

Instance Attribute Summary

Attributes included from Option

#optp

Instance Method Summary collapse

Methods included from Util::Logging

#debug, #error, #fatal, #info, logger, #puts, set_logger, #trace, #warn

Methods included from Flare::Tools::Common

#address_of_hostname, #fetch_cluster, #hostname_of_address, #nodekey_of, #string_of_nodelist, #user_confirmed, #wait_for_master_construction, #wait_for_servers, #wait_for_slave_construction

Methods included from Util::Conversion

#short_desc_of_second

Methods inherited from SubCommand

desc, #execute_subcommand, myname, #myname, to_s, to_sym, usage

Methods included from Util::Interruption

included, #initialize_interruption, #interrupt, #interrupt_, interrupt_all, #interrupted?, #interruptible, #interruptible?

Methods included from Option

#option_init, #parse_options, #set_option_dry_run, #set_option_force, #set_option_global, #set_option_index_server

Constructor Details

#initialize ⇒ Dumpkey

Returns a new instance of Dumpkey.



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# File 'lib/flare/tools/cli/dumpkey.rb', line 42

def initialize
  super
  @output = nil
  @format = nil
  @part = nil
  @partsize = nil
  @bwlimit = nil
  @all = false
end

Instance Method Details

#execute(config, args) ⇒ Object 



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# File 'lib/flare/tools/cli/dumpkey.rb', line 52

def execute(config, args)
  parse_index_server(config, args)
  cluster = nil
  Flare::Tools::IndexServer.open(config[:index_server_hostname], config[:index_server_port], @timeout) do |s|
    cluster = Flare::Tools::Cluster.new(s.host, s.port, s.stats_nodes)
  end
  return S_NG if cluster.nil?

  if @all
    unless args.empty?
      STDERR.puts "don't specify any nodes with --all option."
      return S_NG
    else
      args = cluster.master_nodekeys
    end
  else
    if args.empty?
      STDERR.puts "please specify --all option to get complete dump."
      return S_NG
    end
  end

  unless @format.nil?
    unless ["csv"].include? @format
      puts "unknown format: #{@format}"
      return S_NG
    end
  end

  hosts = args.map {|x| x.split(':')}
  hosts.each do |x|
    if x.size != 2
      puts "invalid argument '#{x.join(':')}'."
      return S_NG
    end
  end

  hosts.each do |hostname,port|
    Flare::Tools::Node.open(hostname, port.to_i, @timeout, @bwlimit, @bwlimit) do |n|
      output = STDOUT
      unless @output.nil?
        output = File.open(@output, "w")
      end
      case @format
      when "csv"
        writer = CSV::Writer.generate(output)
        output.puts "# key"
      end
      interruptible {
        n.dumpkey(@part, @partsize) do |key|
          case @format
          when "csv"
            writer << [key]
          else
            output.puts "#{key}"
          end
          false
        end
      }
      output.close if output != STDOUT
    end
  end

  S_OK
end

#setup ⇒ Object 



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# File 'lib/flare/tools/cli/dumpkey.rb', line 31

def setup
  super
  set_option_index_server
  @optp.on('-o', '--output=FILE',            "output to file"         ) {|v| @output = v}
  @optp.on('-f', '--format=FORMAT',          "output format [csv]"     ) {|v| @format = v}
  @optp.on('-p', '--partition=NUMBER',       "partition number"        ) {|v| @part = v.to_i if v.to_i >= 0}
  @optp.on('-s', '--partition-size=SIZE',    "partition size"          ) {|v| @partsize = v.to_i if v.to_i > 0}
  @optp.on(      '--bwlimit=BANDWIDTH',      "bandwidth limit (bps)"   ) {|v| @bwlimit = v if v.to_i > 0}
  @optp.on(      '--all',                      "dump form all partitions") {@all = true}
end