altoslib: Improve AltosState save/restore debugging

[fw/altos] / altoslib / AltosPreferencesBackend.java

diff --git a/altoslib/AltosPreferencesBackend.java b/altoslib/AltosPreferencesBackend.java
index 6e1124e24e5462574c431d841000bf680222cdc6..0580652e8ab4a4fcc1c4b48d4b4fe61698a85dcc 100644 (file)
--- a/altoslib/AltosPreferencesBackend.java
+++ b/altoslib/AltosPreferencesBackend.java
@@ -15,7 +15,7 @@
  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  */
 
-package org.altusmetrum.altoslib_10;
+package org.altusmetrum.altoslib_11;
 
 import java.io.*;
 import java.util.*;
@@ -38,40 +38,20 @@ public abstract class AltosPreferencesBackend {
        public abstract byte[]  getBytes(String key, byte[] def);
        public abstract void    putBytes(String key, byte[] value);
 
-       public Serializable getSerializable(String key, Serializable def) {
-               byte[] bytes = null;
-
-               bytes = getBytes(key, null);
-               if (bytes == null)
-                       return def;
-
-               ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
+       public AltosJson        getJson(String key) {
+               String  value = getString(key, null);
 
+               if (value == null)
+                       return null;
                try {
-                       ObjectInputStream ois = new ObjectInputStream(bais);
-                       Serializable object = (Serializable) ois.readObject();
-                       return object;
-               } catch (IOException ie) {
-                       debug("IO exception %s\n", ie.toString());
-               } catch (ClassNotFoundException ce) {
-                       debug("ClassNotFoundException %s\n", ce.toString());
+                       return AltosJson.fromString(value);
+               } catch (IllegalArgumentException ie) {
+                       return null;
                }
-               return def;
        }
 
-       public void putSerializable(String key, Serializable object) {
-               ByteArrayOutputStream baos = new ByteArrayOutputStream();
-
-               try {
-                       ObjectOutputStream oos = new ObjectOutputStream(baos);
-
-                       oos.writeObject(object);
-                       byte[] bytes = baos.toByteArray();
-
-                       putBytes(key, bytes);
-               } catch (IOException ie) {
-                       debug("set_state failed %s\n", ie.toString());
-               }
+       public void             putJson(String key, AltosJson j) {
+               putString(key, j.toString());
        }
 
        public abstract boolean nodeExists(String key);