only:hex progress

java_console/io/src/main/java/com/rusefi/io/can/HexUtil.java

@@ -1,6 +1,10 @@
 package com.rusefi.io.can;
 
 public class HexUtil {
+    private static final String HEX_STRING = "0123456789ABCDEF";
+    public static final byte[] HEX_BYTE_ARRAY = HEX_STRING.getBytes();
+    public static final char[] HEX_CHAR_ARRAY = HexUtil.HEX_STRING.toCharArray();
+
     public static byte[] asBytes(String hex) {
         if (hex.indexOf(' ') >= 0) {
             hex = hex.replaceAll(" ", "");
@@ -11,6 +15,16 @@ public class HexUtil {
         return hexToBytes(hex);
     }
 
+    public static String asString(byte[] input) {
+        StringBuilder sb = new StringBuilder();
+        for (byte b : input) {
+            int i = b & 0xff;
+            sb.append(HEX_STRING.charAt(i / 16));
+            sb.append(HEX_STRING.charAt(i % 16));
+        }
+        return sb.toString();
+    }
+
     public static byte[] hexToBytes(CharSequence s) {
         return hexToBytes(s, 0);
     }

java_console/io/src/main/java/com/rusefi/io/can/elm/Elm327Connector.java

@@ -25,9 +25,7 @@ public class Elm327Connector implements Closeable {
 		log.configureDebugEnabled(false);
 	}
 
-	private static final byte[] HEX_ARRAY = "0123456789ABCDEF".getBytes();
-
-//	public final static int ELM327_DEFAULT_BAUDRATE = 115200; // OBDlink SX, 1.3a STN1110
+	//	public final static int ELM327_DEFAULT_BAUDRATE = 115200; // OBDlink SX, 1.3a STN1110
     public final static int ELM327_DEFAULT_BAUDRATE = 38400;
     private final static int BIG_TIMEOUT = 2 * SECOND;
     private final static int TIMEOUT = 70;
@@ -243,8 +241,8 @@ public class Elm327Connector implements Closeable {
 		for (int i = 0; i < length; i++) {
 			int j = i * 2;
 			int v = data[i] & 0xFF;
-			hexData[j] = HEX_ARRAY[v >>> 4];
-			hexData[j + 1] = HEX_ARRAY[v & 0x0F];
+			hexData[j] = HexUtil.HEX_BYTE_ARRAY[v >>> 4];
+			hexData[j + 1] = HexUtil.HEX_BYTE_ARRAY[v & 0x0F];
 		}
 		hexData[length * 2] = '\r';
 		return hexData;

java_console/io/src/main/java/com/rusefi/util/HexBinary.java

@@ -1,10 +1,12 @@
 package com.rusefi.util;
 
+import com.rusefi.io.can.HexUtil;
+
 public class HexBinary {
     public static String printHexBinary(byte[] data) {
         if (data == null)
             return "(null)";
-        char[] hexCode = "0123456789ABCDEF".toCharArray();
+        char[] hexCode = HexUtil.HEX_CHAR_ARRAY;
 
         StringBuilder r = new StringBuilder(data.length * 2);
         for (byte b : data) {

java_console/io/src/test/java/com/rusefi/io/can/HexUtilTest.java

@@ -3,6 +3,7 @@ package com.rusefi.io.can;
 import org.junit.Test;
 
 import static org.junit.Assert.assertArrayEquals;
+import static org.junit.Assert.assertEquals;
 
 public class HexUtilTest {
     @Test
@@ -28,4 +29,9 @@ public class HexUtilTest {
     public void unexpected() {
         HexUtil.hexToBytes("0xff");
     }
+
+    @Test
+    public void asString() {
+        assertEquals("AB01", HexUtil.asString(new byte[]{(byte) 0xab, 1}));
+    }
 }