Class: Nodectl::Manager

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

Constant Summary collapse

MANAGER_METHODS = 
[:all, :find, :find!, :push, :delete, :[], :[]=, :next_id, :onadd, :ondelete]

Instance Method Summary collapse

Constructor Details

#initialize(target_class) ⇒ Manager

Returns a new instance of Manager.



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# File 'lib/nodectl/manager.rb', line 4

def initialize(target_class)
  @objects      = {}
  @target_class = target_class

  @onadd    = []
  @ondelete = []


  MANAGER_METHODS.each do |method|
    @target_class.define_singleton_method method do |*args, &blk|
      @manager.send(method, *args, &blk)
    end
  end
end

Instance Method Details

#all ⇒ Object 



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# File 'lib/nodectl/manager.rb', line 35

def all
  @objects.values
end

#delete(key, options = {}) ⇒ Object 



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# File 'lib/nodectl/manager.rb', line 46

def delete(key, options = {})
  object = @objects.delete(key)
  ondelete_call(object, options)
end

#find(key) ⇒ Object Also known as: [] 



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# File 'lib/nodectl/manager.rb', line 19

def find(key)
  @objects[key]
end

#find!(key) ⇒ Object 



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# File 'lib/nodectl/manager.rb', line 25

def find!(key)
  object = find(key)

  unless object
    raise Nodectl::NotFound, "#{@target_class.name} with key '#{key}' not found"
  end

  object
end

#next_id ⇒ Object 



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# File 'lib/nodectl/manager.rb', line 51

def next_id
  @next_id ||= 0
  @next_id += 1
end

#onadd(&blk) ⇒ Object 



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# File 'lib/nodectl/manager.rb', line 56

def onadd(&blk)
  @onadd << blk
end

#onadd_call(object) ⇒ Object 



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# File 'lib/nodectl/manager.rb', line 64

def onadd_call(object)
  @onadd.each { |b| b.call(object) }
end

#ondelete(&blk) ⇒ Object 



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# File 'lib/nodectl/manager.rb', line 60

def ondelete(&blk)
  @ondelete << blk
end

#ondelete_call(object, options) ⇒ Object 



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# File 'lib/nodectl/manager.rb', line 68

def ondelete_call(object, options)
  @ondelete.each { |b| b.call(object, options) }
end

#push(key, object) ⇒ Object Also known as: []= 



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# File 'lib/nodectl/manager.rb', line 39

def push(key, object)
  @objects[key] = object
  onadd_call(object)
end