Class: God::Condition

Inherits:

Behavior

• Object
• Behavior
• God::Condition

show all

Defined in:

lib/god/condition.rb

Instance Attribute Summary (collapse)

• - (Object) info

  Returns the value of attribute info.

• - (Object) notify

  Returns the value of attribute notify.

• - (Object) phase

  Returns the value of attribute phase.

• - (Object) transition

  Returns the value of attribute transition.

Attributes inherited from Behavior

#watch

Class Method Summary (collapse)

• + (Object) generate(kind, watch)

  Generate a Condition of the given kind.

• + (Boolean) valid?(condition)

Instance Method Summary (collapse)

• - (Object) friendly_name

  Construct the friendly name of this Condition, looks like:.

Methods inherited from Behavior

#after_restart, #after_start, #after_stop, #before_restart, #before_start, #before_stop, #valid?

Methods included from Configurable

#base_name, complain, #complain, #prepare, #reset, #valid?

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# File 'lib/god/condition.rb', line 4

def info
  @info
end

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# File 'lib/god/condition.rb', line 4

def notify
  @notify
end

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# File 'lib/god/condition.rb', line 4

def phase
  @phase
end

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# File 'lib/god/condition.rb', line 4

def transition
  @transition
end

+kind+ is the underscored symbol representing the class (e.g. :foo_bar for God::Conditions::FooBar)

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# File 'lib/god/condition.rb', line 9

def self.generate(kind, watch)
  sym = kind.to_s.capitalize.gsub(/_(.)/){$1.upcase}.intern
  c = God::Conditions.const_get(sym).new
  
  unless c.kind_of?(PollCondition) || c.kind_of?(EventCondition) || c.kind_of?(TriggerCondition)
    abort "Condition '#{c.class.name}' must subclass God::PollCondition, God::EventCondition, or God::TriggerCondition" 
  end
  
  if !EventHandler.loaded? && c.kind_of?(EventCondition)
    abort "Condition '#{c.class.name}' requires an event system but none has been loaded"
  end
  
  c.watch = watch
  c
rescue NameError
  raise NoSuchConditionError.new("No Condition found with the class name God::Conditions::#{sym}")
end

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# File 'lib/god/condition.rb', line 27

def self.valid?(condition)
  valid = true
  if condition.notify
    begin
      Contact.normalize(condition.notify)
    rescue ArgumentError => e
      valid &= Configurable.complain("Attribute 'notify' " + e.message, condition)
    end
  end
  valid
end

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# File 'lib/god/condition.rb', line 42

def friendly_name
  "Condition #{self.class.name.split('::').last} on Watch '#{self.watch.name}'"
end