lib/ruote/id/mnemo_wfid_generator.rb in ruote-2.2.0 vs lib/ruote/id/mnemo_wfid_generator.rb in ruote-2.3.0

@@ -1,7 +1,7 @@
 #--
-# Copyright (c) 2005-2011, John Mettraux, [e-mail]
+# Copyright (c) 2005-2012, John Mettraux, [e-mail]
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to deal
 # in the Software without restriction, including without limitation the rights
 # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
@@ -20,24 +20,47 @@
 # THE SOFTWARE.
 #
 # Made in Japan.
 #++
 
-require 'rufus/mnemo' # gem install rufus-mnemo
-require 'ruote/id/wfid_generator'
+require 'digest/md5'
+require 'rufus/mnemo'
 
 
 module Ruote
 
-  class MnemoWfidGenerator < WfidGenerator
+  #
+  # The default wfid generator.
+  #
+  class MnemoWfidGenerator
 
+    def initialize(context)
+
+      @context = context
+
+      @here = "#{Ruote.local_ip}!#{Process.pid}"
+      @counter = 0
+      #@mutex = Mutex.new
+    end
+
     def generate
 
-      raw = get_raw
+      t = Time.now.utc
+      time = t.strftime('%Y%m%d-%H%M')
+      ms = t.to_f % 60.0
 
-      m = ((raw.to_f % 60 * 60 * 24) * 1000).to_i
+      #c = @mutex.synchronize { @counter = (@counter + 1) % 100_000 }
+      @counter = (@counter + 1) % 100_000
+        #
+        # no need to worry about skipping a beat, no mutex.
 
-      "#{raw.strftime('%Y%m%d')}-#{Rufus::Mnemo.from_integer(m)}"
+      s = "#{ms}!#{Thread.current.object_id}!#{@here}!#{@counter}"
+      s = Digest::MD5.hexdigest(s)
+
+      x = Rufus::Mnemo.from_i(s[0, 6].to_i(16))
+      y = Rufus::Mnemo.from_i(s[6, 6].to_i(16))
+
+      "#{time}-#{x}-#{y}"
     end
   end
 end