public abstract class Goo implements Gooable {
   protected abstract void doSomethingThatRequiresSetup();

   public void doSomething() {
      setUp();
      doSomethingThatRequiresSetup();
      tearDown();
   }


   public void setUp() {
      ... initialize network connections and blah blah blah
   }

   public void tearDown() {
      ... close network connections and any open files
   }
}