add examples board, JSON ready

2 files changed, 73 insertions, 3 deletions

diff --git a/examples/board.json b/examples/board.json
new file mode 100644
index 0000000..40a8e20
--- /dev/null
+++ b/examples/board.json
@@ -0,0 +1,52 @@
+{
+  "kls": "Edoors::Spin",
+  "timestamp": "2012-06-28 14:37:21 +0200",
+  "name": "dom0",
+  "hibernation": false,
+  "inner_room": {
+    "iotas": {
+      "input": {
+        "kls": "FileReader",
+        "name": "input",
+        "filepath": "./examples/data.json"
+      },
+      "filter": {
+        "kls": "Filter",
+        "name": "filter"
+      },
+      "stats": {
+        "kls": "Stats",
+        "name": "stats",
+        "postponed": {
+        }
+      },
+      "output": {
+        "kls": "OutputDoor",
+        "name": "output"
+      }
+    },
+    "links": {
+      "input": [
+        {
+          "kls": "Edoors::Link",
+          "src": "input",
+          "dsts": [
+            "filter",
+            "stats?follow",
+            "output"
+          ],
+          "keys": "filter_value",
+          "value": null
+        }
+      ]
+    }
+  },
+  "sys_fifo": [
+
+  ],
+  "app_fifo": [
+
+  ],
+  "debug_garbage": false,
+  "debug_routing": false
+}
diff --git a/examples/board.rb b/examples/board.rb
index b76679f..7ba7310 100644
--- a/examples/board.rb
+++ b/examples/board.rb
@@ -6,16 +6,29 @@
 # run this script which builds the example system and spin it untill it's empty:
 #   $ ruby -Ilib examples/links.rb
 #
+# or load the system from a JSON specification ( created with dom0.hibernate! )
+#   $ ruby -Ilib bin/edoors.rb -r examples/board.rb examples/board.json
+#
+#
 require 'edoors'
 #
 class FileReader < Edoors::Door
     #
-    def initialize n, p, path
+    def initialize n, p, path=nil
         super n, p
-        @file = File.open(path,'r')
+        @filepath = path unless path.nil?
+    end
+    #
+    def hibernate!
+        {'filepath'=>@filepath}
+    end
+    #
+    def resume! o
+        @filepath = o['filepath']
     end
     #
     def start!
+        @file = File.open(@filepath,'r')
         # stimulate myself on system boot up
         send_p require_p(Edoors::Particle), Edoors::ACT_GET
     end
@@ -32,7 +45,7 @@ class FileReader < Edoors::Door
                 # see Room#_send and Room#_try_links
                 send_p p
                 # stimulate myself
-                start!
+                send_p require_p(Edoors::Particle), Edoors::ACT_GET
             end
         end
     end
@@ -110,6 +123,11 @@ if $0 == __FILE__
     # schedule the spinning particles untill the system cools down
     dom0.spin!
     #
+    # you can save the system state after it's run,
+    # but to be able to use it to bootstrap, the hibernation attribute must be set to false
+    # otherwise start! method is not called
+    # dom0.hibernate! 'board.json'
+    #
 end
 #
 # EOF