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|
#! /usr/bin/env ruby
# -*- coding: UTF-8 -*-
#
module EvenDoors
#
class Room < Spot
#
def initialize n, p=nil
super n, p
@spots = {}
@links = {}
@cache = {}
@parent.add_spot self if @parent
end
#
def add_spot s
raise EvenDoors::Exception.new "Spot #{s.name} already has #{s.parent.name} as parent" if not s.parent.nil? and s.parent!=self
raise EvenDoors::Exception.new "Spot #{s.name} already exists in #{path}" if @spots.has_key? s.name
s.parent = self if s.parent.nil?
@spots[s.name]=s
end
#
def add_link l
l.door = @spots[l.src]
raise EvenDoors::Exception.new "Link source #{l.src} does not exist in #{path}" if l.door.nil?
(@links[l.src] ||= [])<< l
end
#
def start!
puts " * start #{path}" if EvenDoors::Twirl.debug
@spots.values.each do |spot| spot.start! if spot.respond_to? :start! end
end
#
def stop!
puts " * stop #{path}" if EvenDoors::Twirl.debug
@spots.values.each do |spot| spot.stop! if spot.respond_to? :stop! end
end
#
def space
( @parent.nil? ? self : @parent.space )
end
#
def try_links p
puts " -> try_links ..." if EvenDoors::Twirl.debug
links = @links[p.src.name]
return false if links.nil?
pending_link = nil
apply_link = false
links.each do |link|
apply_link = link.cond_fields.nil? # unconditional link
p.set_link_fields link.cond_fields if not apply_link
if apply_link or (p.link_value==link.cond_value)
# link matches !
if not pending_link.nil?
p2 = EvenDoors::Twirl.require_p p.class
p2.clone_data p
p2.src = link.door
p2.clear_dsts!
p2.add_dsts link.dsts
p2.set_link_fields link.fields
send_p p2
end
pending_link = link
end
end
if pending_link
p.src = pending_link.door
p.clear_dsts!
p.add_dsts pending_link.dsts
p.set_link_fields pending_link.fields
send_p p
end
(not pending_link.nil?)
end
#
def route_p p
if p.room.nil? or p.room==path
if door = @spots[p.door]
p.dst_routed! door
else
p.error! EvenDoors::ERROR_ROUTE_RRWD
end
elsif (p.room=~/^#{path}/)==0
# TODO allow drill down ?!?
p.error! EvenDoors::ERROR_ROUTE_RRNDD
elsif @parent
@parent.route_p p
else
p.error! EvenDoors::ERROR_ROUTE_TRWR
end
end
#
def send_p p
puts " * send_p #{(p.next_dst.nil? ? 'no dst' : p.next_dst)} ..." if EvenDoors::Twirl.debug
if p.src.nil?
# do not route orphan particles !!
p.error! EvenDoors::ERROR_ROUTE_NS, space
elsif p.next_dst
p.split_dst!
if p.door
route_p p
else
# boomerang
p.dst_routed! p.src
end
elsif not try_links p
p.error! EvenDoors::ERROR_ROUTE_NDNL
end
puts " -> #{p.dst.path}#{EvenDoors::ACT_SEP}#{p.action}" if EvenDoors::Twirl.debug
EvenDoors::Twirl.send_p p
end
#
def send_sys_p p
puts " * send_sys_p #{(p.next_dst.nil? ? 'no dst' : p.next_dst)} ..." if EvenDoors::Twirl.debug
if p.next_dst
p.split_dst!
if p.door.empty?
if p.action.nil?
p.error! EvenDoors::ERROR_ROUTE_SNDNA
else
p.dst_routed! space
end
else
route_p p
end
else
p.error! EvenDoors::ERROR_ROUTE_SND
end
puts " -> #{p.dst.path}#{EvenDoors::ACT_SEP}#{p.action}" if EvenDoors::Twirl.debug
EvenDoors::Twirl.send_sys_p p
end
#
def process_sys_p p
if p.action==SYS_ACT_ADD_LINK
add_link EvenDoors::Link.from_particle_data p
end
EvenDoors::Twirl.release_p p
end
#
end
#
end
#
# EOF
|
