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module Oxidized
require 'resolv'
class MethodNotFound < StandardError; end
class ModelNotFound < StandardError; end
class Node
attr_reader :name, :ip, :model, :input, :output, :group, :auth, :prompt
attr_accessor :last, :running, :user, :msg, :from
alias :running? :running
def initialize opt
@name = opt[:name]
@ip = Resolv.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
end
def run
status, config = :fail, nil
@input.each do |input|
@model.input = input = input.new
if connect input
config = input.get
status = :success if config
break
else
status = :no_connection
end
end
[status, config]
end
def connect input
rescue_fail = input.class::RescueFail + input.class.superclass::RescueFail
begin
input.connect self
rescue *rescue_fail => err
Log.warn '%s raised %s with msg' % [self.ip, err.class, err.message]
return false
end
end
def serialize
h = {
:name => @name,
:ip => @ip,
:group => @group,
:model => @model.class.to_s,
:last => nil,
}
if @last
h[:last] = {
:start => @last.start,
:end => @last.end,
:status => @last.status,
:time => @last.time,
}
end
h
end
def reset
@user = @msg = @from = nil
end
private
def resolve_prompt opt
prompt = opt[:prompt]
prompt ||= @model.prompt
prompt ||= CFG.prompt
end
def resolve_auth opt
auth = {}
auth[:username] = (opt[:username] or CFG.username)
auth[:password] = (opt[:passowrd] or CFG.password)
auth
end
def resolve_input opt
inputs = (opt[:input] or CFG.input[:default])
inputs.split(/\s*,\s*/).map do |input|
if not Oxidized.mgr.input[input]
Oxidized.mgr.input = input or raise MethodNotFound, "#{input} not found"
end
Oxidized.mgr.input[input]
end
end
def resolve_output opt
output = (opt[:output] or CFG.output[:default])
if not Oxidized.mgr.output[output]
Oxidized.mgr.output = output or raise MethodNotFound, "#{output} not found"
end
Oxidized.mgr.output[output]
end
def resolve_model opt
model = (opt[:model] or CFG.model)
mgr = Oxidized.mgr
if not mgr.model[model]
mgr.model = model or raise ModelNotFound, "#{model} not found"
end
mgr.model[model].new
end
end
end
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