Class: Edoors::Board

Inherits:
Door show all
Defined in:
lib/edoors/board.rb

Instance Attribute Summary

Attributes inherited from Iota

#name, #parent, #path, #spin, #viewer

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Door

#process_sys_p, #release_p, #require_p, #send_p, #send_sys_p

Methods inherited from Iota

#hibernate!, #receive_p, #resume!, #start!, #stop!

Constructor Details

#initialize(n, p) ⇒ Board

creates a Board object from the arguments.

Parameters:

  • n (String) —

    the name of this Board

  • p (Iota) —

    the parent



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# File 'lib/edoors/board.rb', line 34

def initialize n, p
    super n, p
    @postponed = {}
end

Class Method Details

.json_create(o) ⇒ Object

creates a Board object from a JSON data

Parameters:

  • o (Hash) —

    belongs to JSON parser

Raises:

  • Edoors::Exception if the json kls attribute is wrong



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# File 'lib/edoors/board.rb', line 57

def self.json_create o
    raise Edoors::Exception.new "JSON #{o['kls']} != #{self.name}" if o['kls'] != self.name
    board = self.new o['name'], o['parent']
    o['postponed'].each do |link_value,particle|
        board.process_p Edoors::Particle.json_create(particle.merge!('spin'=>board.spin))
    end
    board.resume! o
    board
end

Instance Method Details

#flush! ⇒ Object

sends away all stored Particle



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# File 'lib/edoors/board.rb', line 98

def flush!
    while p=@postponed.shift
        send_p p[1]
    end
end

#keep!(p) ⇒ Object

stores back the given Particle

this can be used to prevent the overhead of sending the particle back to self

Parameters:

  • p (Particle) —

    the particle to be stored



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# File 'lib/edoors/board.rb', line 91

def keep! p
    @postponed[p.link_value] = p
    @saved = nil
end

#process_p(p) ⇒ Object

process the given particle then forward it to user code

Parameters:

  • p (Particle) —

    the Particle to be processed



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# File 'lib/edoors/board.rb', line 71

def process_p p
    @viewer.receive_p p if @viewer
    if p.action!=Edoors::ACT_ERROR and p.action!=Edoors::ACT_PASS_THROUGH
        p2 = @postponed[p.link_value] ||= p
        return if p2==p
        @postponed.delete p.link_value
        p,p2 = p2,p if p.action==Edoors::ACT_FOLLOW
        p.merge! p2
    end
    @saved = p
    receive_p p
    _garbage if not @saved.nil?
end

#to_json(*a) ⇒ Object

called by JSON#generate to serialize the Board object into JSON data

Parameters:

  • a (Array) —

    belongs to JSON generator



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# File 'lib/edoors/board.rb', line 43

def to_json *a
    {
        'kls'       => self.class.name,
        'name'      => @name,
        'postponed' => @postponed
    }.merge(hibernate!).to_json *a
end