Data commit

Task/Object-serialization/Ruby/object-serialization.rb

@@ -0,0 +1,70 @@
+class Being
+  def initialize(specialty=nil)
+    @specialty=specialty
+  end
+  def to_s
+    "(object_id = #{object_id})\n"+"(#{self.class}):".ljust(12)+to_s4Being+(@specialty ? "\n"+" "*12+@specialty : "")
+  end
+  def to_s4Being
+    "I am a collection of cooperative molecules with a talent for self-preservation."
+  end
+end
+
+class Earthling < Being
+  def to_s4Being
+    "I originate from a blue planet.\n"+" "*12+to_s4Earthling
+  end
+end
+
+class Mammal < Earthling
+  def initialize(type)
+    @type=type
+  end
+  def to_s4Earthling
+    "I am champion in taking care of my offspring and eating everything I can find, except mammals of type #{@type}."
+  end
+end
+
+class Fish < Earthling
+  def initialize(iq)
+    @iq=(iq>1 ? :instrustableValue : iq)
+  end
+  def to_s4Earthling
+    "Although I think I can think, I can't resist biting in hooks."
+  end
+end
+
+class Moonling < Being
+  def to_s4Being
+    "My name is Janneke Maan, and apparently some Earthlings will pay me a visit."
+  end
+end
+
+diverseCollection=[]
+diverseCollection << (marsian=Being.new("I come from Mars and like playing hide and seek."))
+diverseCollection << (me=Mammal.new(:human))
+diverseCollection << (nemo=Fish.new(0.99))
+diverseCollection << (jannakeMaan=Moonling.new)
+
+puts "BEGIN ORIGINAL DIVERSE COLLECTION"
+diverseCollection.each do |being|
+  puts "",being.to_s
+end
+puts "END ORIGINAL DIVERSE COLLECTION"
+puts "\n"+"*"*50+"\n\n"
+
+#Marshal the diverse Array of beings
+File.open('diverseCollection.bin','w') do |fo|
+  fo << Marshal.dump(diverseCollection)
+end
+
+#load the Array of diverse beings
+sameDiverseCollection=Marshal.load(File.read('diverseCollection.bin'))
+
+puts "BEGIN LOADED DIVERSE COLLECTION"
+puts(
+     sameDiverseCollection.collect do |being|
+       being.to_s
+     end.join("\n\n")
+     )
+puts "END LOADED DIVERSE COLLECTION"