Class: Baykit::BayServer::Util::ObjectStore

Inherits:
Object
  • Object
show all
Includes:
Reusable
Defined in:
lib/baykit/bayserver/util/object_store.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(factory = nil) ⇒ ObjectStore

Returns a new instance of ObjectStore.



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# File 'lib/baykit/bayserver/util/object_store.rb', line 12

def initialize(factory=nil)
  @free_list = []
  @active_list = []
  @factory = factory
end

Instance Attribute Details

#active_list ⇒ Object (readonly)

Returns the value of attribute active_list.



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# File 'lib/baykit/bayserver/util/object_store.rb', line 9

def active_list
  @active_list
end

#factory ⇒ Object (readonly)

Returns the value of attribute factory.



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# File 'lib/baykit/bayserver/util/object_store.rb', line 10

def factory
  @factory
end

#free_list ⇒ Object (readonly)

Returns the value of attribute free_list.



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# File 'lib/baykit/bayserver/util/object_store.rb', line 8

def free_list
  @free_list
end

Instance Method Details



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# File 'lib/baykit/bayserver/util/object_store.rb', line 62

def print_usage(indent)
  BayLog.info("%sfree list: %d", StringUtil.indent(indent), @free_list.length)
  BayLog.info("%sactive list: %d", StringUtil.indent(indent), @active_list.length)
  if BayLog.debug_mode?
    @active_list.each do |obj|
      BayLog.debug("%s%s", StringUtil.indent(indent+1), obj)
    end
  end
end

#rent ⇒ Object 



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# File 'lib/baykit/bayserver/util/object_store.rb', line 28

def rent()
  if @free_list.empty?
    if @factory.instance_of? ObjectFactory
      obj = @factory.create_object()
    else
      # lambda
      obj = @factory.call()
    end
  else
    obj = @free_list.delete_at(@free_list.length - 1)
  end
  if obj == nil
    raise Sink.new()
  end
  @active_list.append(obj)
  return obj
end

#reset ⇒ Object 



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# File 'lib/baykit/bayserver/util/object_store.rb', line 18

def reset()
  if @active_list.length > 0
    BayLog.error("BUG?: There are %d active objects: %s", @active_list.length, @active_list)

    # for security
    @free_list.clear()
    @active_list.clear()
  end
end

#Return(obj, reuse = true) ⇒ Object 



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# File 'lib/baykit/bayserver/util/object_store.rb', line 46

def Return(obj, reuse=true)
  if @free_list.include?(obj)
    raise Sink.new("This object already returned: " + obj.to_s)
  end

  if !@active_list.include?(obj)
    raise Sink.new("This object is not active: " + obj)
  end

  @active_list.delete(obj)
  if reuse
    @free_list.append(obj)
    obj.reset()
  end
end