Class: Oxidized::Node

Inherits:
Object
  • Object
show all
Defined in:
lib/oxidized/node.rb,
lib/oxidized/node/stats.rb

Defined Under Namespace

Classes: Stats

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(opt) ⇒ Node

Returns a new instance of Node.



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# File 'lib/oxidized/node.rb', line 11

def initialize opt
  @name           = opt[:name]
  @ip             = IPAddr.new(opt[:ip]).to_s rescue nil
  @ip           ||= Resolv.new.getaddress @name
  @group          = opt[:group]
  @input          = resolve_input opt
  @output         = resolve_output opt
  @model          = resolve_model opt
  @auth           = resolve_auth opt
  @prompt         = resolve_prompt opt
  @vars           = opt[:vars]
  @stats          = Stats.new
  @retry          = 0

  # model instance needs to access node instance
  @model.node = self
end

Instance Attribute Details

#auth ⇒ Object (readonly)

Returns the value of attribute auth.



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# File 'lib/oxidized/node.rb', line 8

def auth
  @auth
end

#from ⇒ Object

Returns the value of attribute from.



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# File 'lib/oxidized/node.rb', line 9

def from
  @from
end

#group ⇒ Object (readonly)

Returns the value of attribute group.



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# File 'lib/oxidized/node.rb', line 8

def group
  @group
end

#input ⇒ Object (readonly)

Returns the value of attribute input.



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# File 'lib/oxidized/node.rb', line 8

def input
  @input
end

#ip ⇒ Object (readonly)

Returns the value of attribute ip.



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# File 'lib/oxidized/node.rb', line 8

def ip
  @ip
end

#last ⇒ Object

Returns the value of attribute last.



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# File 'lib/oxidized/node.rb', line 8

def last
  @last
end

#model ⇒ Object (readonly)

Returns the value of attribute model.



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# File 'lib/oxidized/node.rb', line 8

def model
  @model
end

#msg ⇒ Object

Returns the value of attribute msg.



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# File 'lib/oxidized/node.rb', line 9

def msg
  @msg
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/oxidized/node.rb', line 8

def name
  @name
end

#output ⇒ Object (readonly)

Returns the value of attribute output.



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# File 'lib/oxidized/node.rb', line 8

def output
  @output
end

#prompt ⇒ Object (readonly)

Returns the value of attribute prompt.



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# File 'lib/oxidized/node.rb', line 8

def prompt
  @prompt
end

#retry ⇒ Object

Returns the value of attribute retry.



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# File 'lib/oxidized/node.rb', line 9

def retry
  @retry
end

#running ⇒ Object Also known as: running?

Returns the value of attribute running.



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# File 'lib/oxidized/node.rb', line 9

def running
  @running
end

#stats ⇒ Object

Returns the value of attribute stats.



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# File 'lib/oxidized/node.rb', line 9

def stats
  @stats
end

#user ⇒ Object

Returns the value of attribute user.



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# File 'lib/oxidized/node.rb', line 9

def user
  @user
end

#vars ⇒ Object (readonly)

Returns the value of attribute vars.



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# File 'lib/oxidized/node.rb', line 8

def vars
  @vars
end

Instance Method Details

#reset ⇒ Object 



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# File 'lib/oxidized/node.rb', line 117

def reset
  @user = @msg = @from = nil
  @retry = 0
end

#run ⇒ Object 



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# File 'lib/oxidized/node.rb', line 29

def run
  status, config = :fail, nil
  @input.each do |input|
    # don't try input if model is missing config block, we may need strong config to class_name map
    cfg_name = input.to_s.split('::').last.downcase
    next unless @model.cfg[cfg_name] and not @model.cfg[cfg_name].empty?
    @model.input = input = input.new
    if config=run_input(input)
      status = :success
      break
    else
      status = :no_connection
    end
  end
  @model.input = nil
  [status, config]
end

#run_input(input) ⇒ Object 



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# File 'lib/oxidized/node.rb', line 47

def run_input input
  rescue_fail = {}
  [input.class::RescueFail, input.class.superclass::RescueFail].each do |hash|
    hash.each do |level,errors|
      errors.each do |err|
        rescue_fail[err] = level
      end
    end
  end
  begin
    if input.connect self
      input.get
    end
  rescue *rescue_fail.keys => err
    resc  = ''
    if not level = rescue_fail[err.class]
      resc  = err.class.ancestors.find{|e|rescue_fail.keys.include? e}
      level = rescue_fail[resc]
      resc  = " (rescued #{resc})"
    end
    Log.send(level, '%s raised %s%s with msg "%s"' % [self.ip, err.class, resc, err.message])
    return false
  rescue => err
    file = Oxidized::Config::Crash + '.' + self.ip.to_s
    open file, 'w' do |fh|
      fh.puts Time.now.utc
      fh.puts err.message + ' [' + err.class.to_s + ']'
      fh.puts '-' * 50
      fh.puts err.backtrace
    end
    Log.error '%s raised %s with msg "%s", %s saved' % [self.ip, err.class, err.message, file]
    return false
  end
end

#serialize ⇒ Object 



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# File 'lib/oxidized/node.rb', line 82

def serialize
  h = {
    :name      => @name,
    :full_name => @name,
    :ip        => @ip,
    :group     => @group,
    :model     => @model.class.to_s,
    :last      => nil,
    :vars      => @vars,
  }
  h[:full_name] = [@group, @name].join('/') if @group
  if @last
    h[:last] = {
      :start  => @last.start,
      :end    => @last.end,
      :status => @last.status,
      :time   => @last.time,
    }
  end
  h
end