Add basic command parsing

src/net/hkzlab/dupal/dupalproto/DuPALProto.java

@@ -1,21 +1,60 @@
 package net.hkzlab.dupal.dupalproto;
 
+import java.util.ArrayList;
+
 public class DuPALProto {
-    private static String CMD_START = ">";
-    private static String CMD_END = "<";
+    private final static String CMD_START = ">";
+    private final static String CMD_END = "<";
+   
+    private final static String RESP_START = "[";
+    private final static String RESP_END = "]";
 
-    private static String CMD_WRITE = "W";
-    private static String CMD_READ = "R";
-    private static String CMD_EXIT = "X";
-    private static String CMD_RESET = "K";
+    private final static char CMD_WRITE = 'W';
+    private final static char CMD_READ = 'R';
+    private final static char CMD_EXIT = 'X';
+    private final static char CMD_RESET = 'K';
 
-    private static String CMD_RESP_ERROR = "CMD_ERROR";
+    private final static String CMD_RESP_ERROR = "CMD_ERROR";
 
     public static String buildREADCommand() {
         return CMD_START+CMD_READ+CMD_END;
     }
 
     public static String buildWRITECommand(int address) {
-        return CMD_START+CMD_WRITE+" "+String.format("%08X", address & 0x3FFFF)+CMD_END;
+        return ""+CMD_START+CMD_WRITE+" "+String.format("%08X", address & 0x3FFFF)+CMD_END;
+    }
+
+    public static String buildEXITCommand() {
+        return ""+CMD_START+CMD_EXIT+CMD_END;
+    }
+
+    public static String buildRESETCommand() {
+        return ""+CMD_START+CMD_RESET+CMD_END;
+    }
+
+    public static String[] parseResponse(String response) {
+        ArrayList<String> respString = new ArrayList<>();
+
+        response = response.trim();
+
+        if(response.equals(CMD_RESP_ERROR)) {
+            respString.add(CMD_RESP_ERROR);
+        } else if(response.startsWith(RESP_START) && response.endsWith(RESP_END)) {
+            response = response.substring(1, response.length()-1).trim();
+            char command = response.charAt(1);
+            switch(command) {
+                case CMD_READ: 
+                case CMD_WRITE: {
+                        String[] cmd_comp = response.split(" ");
+                        if(cmd_comp.length != 2) return null;
+                        return cmd_comp;
+                    }
+                default:
+                    return null;
+            }
+
+        } else return null;
+
+        return respString.toArray(new String[respString.size()]);
     }
 }