A helper class to hide password fields for the UI.

git-svn-id: svn+ssh://svn.internal.sanger.ac.uk/repos/svn/pathsoft/artemis/trunk@11608 ee4ac58c-ac51-4696-9907-e4b3aa274f04

uk/ac/sanger/artemis/io/UIEraserThread.java

+package uk.ac.sanger.artemis.io;
+
+class UIEraserThread implements Runnable {
+   private boolean stop;
+
+   /**
+    *@param The prompt displayed to the user
+    */
+   public UIEraserThread(String prompt) {
+       System.out.print(prompt);
+   }
+
+   /**
+    * Begin masking...display asterisks (*)
+    */
+   public void run () {
+      stop = true;
+      while (stop) {
+         System.out.print("\010*");
+	     try {
+	         Thread.currentThread().sleep(1);
+         } catch(InterruptedException ie) {
+             ie.printStackTrace();
+         }
+      }
+   }
+
+   /**
+    * Instruct the thread to stop masking
+    */
+   public void stopMasking() {
+      this.stop = false;
+   }
+}
\ No newline at end of file