Module: Roma::Command::Definition

Included in:
MultiHashCommandReceiver, Roma::CommandPlugin::PluginMap, Roma::CommandPlugin::PluginMapCount
Defined in:
lib/roma/command/command_definition.rb

Defined Under Namespace

Modules: ClassMethods Classes: ClientErrorException, ServerErrorException

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/roma/command/command_definition.rb', line 8

def self.included(base)
  # include ClassMethods module into an eigen-class of a +base+
  base.extend ClassMethods
end

Instance Method Details

#forward_and_multi_line_receive(nid, rs, data = nil) ⇒ Object 



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# File 'lib/roma/command/command_definition.rb', line 383

def forward_and_multi_line_receive(nid, rs, data=nil)
  if rs.last == "forward"
    return send_data("SERVER_ERROR Routing table is inconsistent.\r\n")
  end

  @log.warn("forward #{rs} to #{nid}");

  buf = rs.join(' ') + " forward\r\n"
  buf << data + "\r\n" if data

  con = get_connection(nid)
  con.send(buf)

  buf = con.gets
  if buf == nil
    @rttable.proc_failed(nid)
    @log.error("forward get failed:nid=#{nid} rs=#{rs} #{$@}")
    return send_data("SERVER_ERROR Message forward failed.\r\n")
  elsif buf.start_with?("ERROR")
    @rttable.proc_succeed(nid)
    con.close_connection
    @log.error("forward get failed:nid=#{nid} rs=#{rs} #{$@}")
    return send_data("SERVER_ERROR Message forward failed.\r\n")
  elsif buf.start_with?("VALUE") == false
    return_connection(nid, con)
    @rttable.proc_succeed(nid)
    return send_data(buf)
  end

  res = ''
  begin
    res << buf
    s = buf.split(/ /)
    if s[0] != 'VALUE'
      return_connection(nid, con)
      @rttable.proc_succeed(nid)
      return send_data(buf)
    end
    res << con.read_bytes(s[3].to_i + 2)
  end while (buf = con.gets)!="END\r\n"

  res << "END\r\n"

  return_connection(nid, con)
  @rttable.proc_succeed(nid)

  send_data(res)
rescue => e
  @rttable.proc_failed(nid) if e.message != "no connection"
  @log.error("forward get failed:nid=#{nid} rs=#{rs} #{e} #{$@}")
  send_data("SERVER_ERROR Message forward failed.\r\n")
end

#forward_and_one_line_receive(nid, rs, data = nil) ⇒ Object 



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# File 'lib/roma/command/command_definition.rb', line 366

def forward_and_one_line_receive(nid, rs, data = nil)
  if rs.last == "forward"
    return send_data("SERVER_ERROR Routing table is inconsistent.\r\n")
  end

  @log.warn("forward #{rs} to #{nid}");

  buf = rs.join(' ') + " forward\r\n"
  buf << data + "\r\n" if data
  res = send_cmd(nid, buf)
  if res == nil || res.start_with?("ERROR")
    return send_data("SERVER_ERROR Message forward failed.\r\n")
  end
  send_data("#{res}\r\n")
end