Class: Puppet::Relationship

Inherits:
Object show all
Includes:
Network::FormatSupport, Util::PsychSupport
Defined in:
lib/puppet/relationship.rb

Overview

This is Puppet's class for modeling edges in its configuration graph. It used to be a subclass of GRATR::Edge, but that class has weird hash overrides that dramatically slow down the graphing.

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Util::PsychSupport

#encode_with, #init_with

Methods included from Network::FormatSupport

included, #mime, #render, #support_format?, #to_json, #to_msgpack, #to_pson

Constructor Details

#initialize(source, target, options = {}) ⇒ Relationship

Returns a new instance of Relationship.


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# File 'lib/puppet/relationship.rb', line 34

def initialize(source, target, options = {})
  @source, @target = source, target

  options = (options || {}).inject({}) { |h,a| h[a[0].to_sym] = a[1]; h }
  [:callback, :event].each do |option|
    value = options[option]
    send(option.to_s + "=", value) if value
  end
end

Instance Attribute Details

#callback ⇒ Object

Returns the value of attribute callback


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# File 'lib/puppet/relationship.rb', line 13

def callback
  @callback
end

#event ⇒ Object

Returns the value of attribute event


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# File 'lib/puppet/relationship.rb', line 15

def event
  @event
end

#source ⇒ Object

Returns the value of attribute source


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# File 'lib/puppet/relationship.rb', line 13

def source
  @source
end

#target ⇒ Object

Returns the value of attribute target


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# File 'lib/puppet/relationship.rb', line 13

def target
  @target
end

Class Method Details

.from_data_hash(data) ⇒ Object 


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# File 'lib/puppet/relationship.rb', line 17

def self.from_data_hash(data)
  source = data['source']
  target = data['target']

  args = {}
  args[:event] = :"#{data['event']}" if data["event"]
  args[:callback] = :"#{data['callback']}" if data["callback"]

  new(source, target, args)
end

Instance Method Details

#inspect ⇒ Object 


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# File 'lib/puppet/relationship.rb', line 67

def inspect
  "{ #{source} => #{target} }"
end

#label ⇒ Object 


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# File 'lib/puppet/relationship.rb', line 56

def label
  result = {}
  result[:callback] = callback if callback
  result[:event] = event if event
  result
end

#match?(event) ⇒ Boolean

Does the passed event match our event? This is where the meaning of :NONE comes from.

Returns:

  • (Boolean) 

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# File 'lib/puppet/relationship.rb', line 46

def match?(event)
  if self.event.nil? or event == :NONE or self.event == :NONE
    return false
  elsif self.event == :ALL_EVENTS or event == self.event
    return true
  else
    return false
  end
end

#ref ⇒ Object 


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# File 'lib/puppet/relationship.rb', line 63

def ref
  "#{source} => #{target}"
end

#to_data_hash ⇒ Object 


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# File 'lib/puppet/relationship.rb', line 71

def to_data_hash
  data = {
    'source' => source.to_s,
    'target' => target.to_s
  }
  data['event'] = event.to_s unless event.nil?
  data['callback'] = callback.to_s unless callback.nil?
  data
end

#to_s ⇒ Object 


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# File 'lib/puppet/relationship.rb', line 81

def to_s
  ref
end