Class: Arnold::Node

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

Constant Summary collapse

@@reserved_params = 
['guid', 'name', 'macaddr', 'classes']

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(guid = nil, name = nil, macaddr = nil, parameters = {}, classes = []) ⇒ Node

Returns a new instance of Node.



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# File 'lib/arnold/node.rb', line 6

def initialize(guid=nil, name=nil, macaddr=nil, parameters={}, classes = [])
  # if no guid, this is intended to be a new node
  self.guid       = guid
  self.name       = name
  self.macaddr    = macaddr
  self.parameters = parameters
  self.classes    = classes
end

Instance Attribute Details

#classes ⇒ Object

Returns the value of attribute classes.



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# File 'lib/arnold/node.rb', line 3

def classes
  @classes
end

#guid ⇒ Object

Returns the value of attribute guid.



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# File 'lib/arnold/node.rb', line 3

def guid
  @guid
end

#macaddr ⇒ Object

Returns the value of attribute macaddr.



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# File 'lib/arnold/node.rb', line 3

def macaddr
  @macaddr
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/arnold/node.rb', line 3

def name
  @name
end

#parameters ⇒ Object

Returns the value of attribute parameters.



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# File 'lib/arnold/node.rb', line 3

def parameters
  @parameters
end

Class Method Details

.munge(value, type = :upcase) ⇒ Object 



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# File 'lib/arnold/node.rb', line 77

def self.munge(value, type=:upcase)
  case type
  when :upcase
    return value.nil? ? nil : value.upcase
  when :params
    return value.reject { |name, val| @@reserved_params.include? name }
  end
end

Instance Method Details

#disabled ⇒ Object 



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# File 'lib/arnold/node.rb', line 41

def disabled
  return $CONFIG[:classes] if @classes.nil?
  $CONFIG[:classes].reject { |name, desc| @classes.include? name }
end

#enabled ⇒ Object

returns classes and descriptions for classes enabled or disabled



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# File 'lib/arnold/node.rb', line 36

def enabled
  return {} if @classes.nil?
  $CONFIG[:classes].select { |name, desc| @classes.include? name }
end

#validate(value, type = :exists) ⇒ Object

Raise exceptions if the given condition fails



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# File 'lib/arnold/node.rb', line 48

def validate(value, type=:exists)
  case type
  when :classes
    return if value.nil?
    raise "Invalid type: #{value.class}" if not value.kind_of?(Array)
    value.each { |n| raise "Invalid class: #{n}" if not $CONFIG[:classes].has_key?(n) }

  when :params
    return if value.nil?
    raise "Invalid type: #{value.class}" if not value.kind_of?(Hash)
    @@reserved_params.each { |n| raise "Invalid parameter: #{n}" if value.has_key?(n) }

  when :macaddr
    return if value.nil?
    value.upcase!
    raise "Invalid MAC address: #{value}" if not value =~ /^(([0-9A-F]{2}[:-]){5}([0-9A-F]{2}))?$/

  when :filename
    return if value.nil?
    raise "Invalid name: #{value}" if not value =~ /^([^\/])*$/

  when :exists
    raise "Value does not exist." if (value.nil? || value.empty?)

  end

  return value
end