1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
#! /usr/bin/env ruby
# -*- coding: UTF-8 -*-
#
# Copyright 2012 Jérémy Zurcher <jeremy@asynk.ch>
#
# This file is part of iotas.
#
# iotas is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# iotas is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with iotas. If not, see <http://www.gnu.org/licenses/>.
require 'time'
#
module Iotas
#
class Particle
#
def initialize o={}
@ts = Time.now # creation time
@src = nil # Spot where it's originated from
@dst = nil # Spot where it's heading to
@room = nil # Room path part of the current destination
@door = nil # Door path part of the current destination
@action = nil # action part of the current destination
@link_value = nil # the value computed with the link_fields values extracted from the payload
# used for pearing Particles in Boards and linking in routing process
@dsts = [] # fifo of path?action strings where to travel to
@link_fields = [] # the fields used to generate the link value
@payload = {} # the actual data carried by this particle
@merged = [] # list of merged particles
#
if not o.empty?
@ts = Time.parse(o['ts']) if o['ts']
@room = o['room']
@door = o['door']
@action = o['action']
@payload = o['payload']||{}
@src = o['spin'].search_down o['src'] if o['src']
@dst = o['spin'].search_down o['dst'] if o['dst']
o['dsts'].each do |dst| add_dsts dst end if o['dsts']
set_link_fields *o['link_fields'] if o['link_fields']
o['merged'].each do |particle|
merge! Particle.json_create(particle.merge!('spin'=>o['spin']))
end if o['merged']
end
end
#
def to_json *a
{
'kls' => self.class.name,
'ts' => @ts,
'src' => (@src ? @src.path : nil ),
'dst' => (@dst ? @dst.path : nil ),
'room' => @room,
'door' => @door,
'action' => @action,
'dsts' => @dsts,
'link_fields' => @link_fields,
'payload' => @payload,
'merged' => @merged
}.to_json *a
end
#
def self.json_create o
raise Iotas::Exception.new "JSON #{o['kls']} != #{self.name}" if o['kls'] != self.name
self.new o
end
#
def reset!
@ts = Time.now
@src = @dst = @room = @door = @action = @link_value = nil
@dsts.clear
@link_fields.clear
@payload.clear
@merged.clear
end
#
attr_accessor :src
attr_reader :ts, :dst, :room, :door, :action, :link_value, :payload
#
# routing
#
def next_dst
@dsts[0]
end
#
def clear_dsts!
@dsts.clear
end
#
def add_dsts dsts
dsts.split(Iotas::LINK_SEP).each do |dst|
if dst.empty? or dst[0]==Iotas::PATH_SEP or dst[0]==Iotas::PATH_SEP or dst=~/\/\?/\
or dst=~/\/{2,}/ or dst=~/\s+/ or dst==Iotas::ACT_SEP
raise Iotas::Exception.new "destination #{dst} is not acceptable"
end
@dsts << dst
end
end
#
def set_dst! a, d=''
@dst = @room = @door = @action = nil
clear_dsts!
add_dsts d+Iotas::ACT_SEP+a
end
#
def split_dst!
@dst = @room = @door = @action = nil
return if (n = next_dst).nil?
p, @action = n.split Iotas::ACT_SEP
i = p.rindex Iotas::PATH_SEP
if i.nil?
@room = nil
@door = p
else
@room = p[0..i-1]
@door = p[i+1..-1]
end
@door = nil if @door.empty?
end
#
def dst_routed! dst
@dst = dst
@dsts.shift
end
#
def error! e, dst=nil
@action = Iotas::ACT_ERROR
@dst = dst||@src
@payload[Iotas::FIELD_ERROR_MSG]=e
end
#
def apply_link! lnk
@src = lnk.door
clear_dsts!
add_dsts lnk.dsts
set_link_fields lnk.fields
end
#
# data manipulation
#
def []= k, v
@payload[k]=v
compute_link_value! if @link_fields.include? k
end
#
def set_data k, v
@payload[k] = v
compute_link_value! if @link_fields.include? k
end
#
def [] k
@payload[k]
end
#
def get_data k
@payload[k]
end
alias :data :get_data
#
def clone_data p
@payload = p.payload.clone
end
#
# link value and fields
#
def set_link_fields *args
@link_fields.clear if not @link_fields.empty?
args.compact!
args.each do |lfs|
lfs.split(',').each do |lf|
@link_fields << lf
end
end
compute_link_value!
end
#
def compute_link_value!
@link_value = @link_fields.inject('') { |s,lf| s+=@payload[lf].to_s if @payload[lf]; s }
end
#
# merge particles management
#
def merge! p
@merged << p
end
#
def merged i
@merged[i]
end
#
def merged_shift
@merged.shift
end
#
def clear_merged!
@merged.clear
end
#
end
#
end
#
# EOF
|
