Class: SnmpDumper::Walker

Inherits:
Object
  • Object
show all
Defined in:
lib/walker.rb

Instance Method Summary collapse

Constructor Details

#initialize(options) ⇒ Walker

Returns a new instance of Walker.



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# File 'lib/walker.rb', line 5

def initialize(options)
  @options = options
end

Instance Method Details

#walk(dumper) ⇒ Object 



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# File 'lib/walker.rb', line 9

def walk(dumper)
  snmpconfig = { :Host => @options.host, :Port => @options.port, :Version => @options.version}

  snmpconfig.merge!({:Timeout => @options.timeout }) if @options.timeout
  snmpconfig.merge!({:Retries => @options.retries }) if @options.retries

  if @options.version == :SNMPv3 then
    snmpconfig.merge! Hash.new()
  else
    snmpconfig.merge! :Community => @options.community
  end

  STDERR.puts snmpconfig if $DEBUG
  manager = SNMP::Manager.new(snmpconfig)

  model = @options.model || manager.get_value('sysDescr.0')

  dumper.model = model
  dumper.category = @options.category
  
  (1..@options.walks).each do |i|
    STDERR.puts "Walk #{i}/#{@options.walks}: start" if $DEBUG

    @options.oids.each do |oid|
      begin
        manager.walk(oid) do |var_bind|
          dumper.add_snmp_var({:name => var_bind.name, :value => var_bind.value})
        end
      rescue SNMP::RequestTimeout => e
        raise e if dumper.snmp_vars.empty?
      end
    end

    STDERR.puts "Walk #{i}/#{@options.walks}: end" if $DEBUG
    if i != @options.walks then
      STDERR.puts "Sleep for #{@options.interval} seconds" if $DEBUG
      sleep @options.interval 
    end
  end
  manager.close

end