Class: Crufty::Context

Inherits:
Object
  • Object
show all
Defined in:
lib/crufty/context.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(best_by, expires, backtrace = nil) ⇒ Context

Returns a new instance of Context.



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# File 'lib/crufty/context.rb', line 7

def initialize(best_by, expires, backtrace=nil)
  @invoke = true

  if datetimeish?(best_by) && datetimeish?(expires)
    @invoked_at = DateTime.now
  elsif timeish?(best_by) && timeish?(expires)
    @invoked_at = Time.now
  else
    raise ArgumentError, "Unexpected time params: #{best_by.class} and #{expires.class}"
  end
  
  @best_by = best_by
  @expires = expires
  @backtrace = backtrace
end

Instance Attribute Details

#backtrace ⇒ Object (readonly)

Returns the value of attribute backtrace.



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# File 'lib/crufty/context.rb', line 5

def backtrace
  @backtrace
end

#best_by ⇒ Object (readonly)

Returns the value of attribute best_by.



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# File 'lib/crufty/context.rb', line 5

def best_by
  @best_by
end

#expires ⇒ Object (readonly)

Returns the value of attribute expires.



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# File 'lib/crufty/context.rb', line 5

def expires
  @expires
end

#invoke ⇒ Object (readonly)

Returns the value of attribute invoke.



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# File 'lib/crufty/context.rb', line 5

def invoke
  @invoke
end

#invoked_at ⇒ Object (readonly)

Returns the value of attribute invoked_at.



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# File 'lib/crufty/context.rb', line 5

def invoked_at
  @invoked_at
end

Instance Method Details

#expired? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/crufty/context.rb', line 39

def expired?
  if @expires.nil?
    false
  else
    @invoked_at >= @expires
  end
end

#fresh? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/crufty/context.rb', line 27

def fresh?
  !stale? && !expired?
end

#stale? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/crufty/context.rb', line 31

def stale?
  if @best_by.nil?
    true
  else
    @invoked_at >= @best_by
  end
end

#state ⇒ Object 



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# File 'lib/crufty/context.rb', line 23

def state
  @state ||= (expired? ? :expired : (stale? ? :stale : :fresh))
end