diff options
Diffstat (limited to 'src/main/java/org/traccar/helper/Checksum.java')
| -rw-r--r-- | src/main/java/org/traccar/helper/Checksum.java | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/src/main/java/org/traccar/helper/Checksum.java b/src/main/java/org/traccar/helper/Checksum.java index d41dc2992..8c3d0063a 100644 --- a/src/main/java/org/traccar/helper/Checksum.java +++ b/src/main/java/org/traccar/helper/Checksum.java @@ -26,12 +26,12 @@ public final class Checksum { public static class Algorithm { - private int poly; - private int init; - private boolean refIn; - private boolean refOut; - private int xorOut; - private int[] table; + private final int poly; + private final int init; + private final boolean refIn; + private final boolean refOut; + private final int xorOut; + private final int[] table; public Algorithm(int bits, int poly, int init, boolean refIn, boolean refOut, int xorOut) { this.poly = poly; @@ -151,13 +151,8 @@ public final class Checksum { return checksum; } - public static String nmea(String msg) { - int checksum = 0; - byte[] bytes = msg.getBytes(StandardCharsets.US_ASCII); - for (int i = 1; i < bytes.length; i++) { - checksum ^= bytes[i]; - } - return String.format("*%02x", checksum).toUpperCase(); + public static String nmea(String string) { + return String.format("*%02X", xor(string)); } public static int sum(ByteBuffer buf) { |