diff options
Diffstat (limited to 'src/org/traccar/protocol/GranitProtocolDecoder.java')
| -rw-r--r-- | src/org/traccar/protocol/GranitProtocolDecoder.java | 23 |
1 files changed, 10 insertions, 13 deletions
diff --git a/src/org/traccar/protocol/GranitProtocolDecoder.java b/src/org/traccar/protocol/GranitProtocolDecoder.java index 16229dc18..6f334d3c5 100644 --- a/src/org/traccar/protocol/GranitProtocolDecoder.java +++ b/src/org/traccar/protocol/GranitProtocolDecoder.java @@ -39,11 +39,11 @@ public class GranitProtocolDecoder extends BaseProtocolDecoder { } public static void appendChecksum(ChannelBuffer buffer, int length) { - buffer.writeByte(0x2a); // asterisk + buffer.writeByte('*'); int checksum = Checksum.xor(buffer.toByteBuffer(0, length)) & 0xFF; String checksumString = String.format("%02X", checksum); buffer.writeBytes(checksumString.getBytes(StandardCharsets.US_ASCII)); - buffer.writeByte(0x0D); buffer.writeByte(0x0A); + buffer.writeByte('\r'); buffer.writeByte('\n'); } private static void sendResponseCurrent(Channel channel, int deviceId, long time) { @@ -132,12 +132,10 @@ public class GranitProtocolDecoder extends BaseProtocolDecoder { protected Object decode(Channel channel, SocketAddress remoteAddress, Object msg) throws Exception { ChannelBuffer buf = (ChannelBuffer) msg; - - if (hasDeviceId() && buf.toString(StandardCharsets.US_ASCII).contains("OK") - || buf.toString(StandardCharsets.US_ASCII).startsWith("ERROR") - || buf.toString(StandardCharsets.US_ASCII).startsWith("+PR") - || buf.toString(StandardCharsets.US_ASCII).startsWith("+IDNT") - || buf.toString(StandardCharsets.US_ASCII).startsWith("+BBMD")) { + String bufString = buf.toString(StandardCharsets.US_ASCII); + if (hasDeviceId() && bufString.contains("OK") || bufString.startsWith("ERROR") + || bufString.startsWith("+PR") || bufString.startsWith("+IDNT") + || bufString.startsWith("+BBMD")) { Position position = new Position(); position.setProtocol(getProtocolName()); position.setDeviceId(getDeviceId()); @@ -145,7 +143,7 @@ public class GranitProtocolDecoder extends BaseProtocolDecoder { position.setTime(new Date()); getLastLocation(position, new Date()); position.setValid(false); - position.set(Position.KEY_RESULT, buf.toString(StandardCharsets.US_ASCII)); + position.set(Position.KEY_RESULT, bufString); return position; } @@ -153,10 +151,9 @@ public class GranitProtocolDecoder extends BaseProtocolDecoder { if (buf.readableBytes() < HEADER_LENGTH) { return null; } + buf.skipBytes(HEADER_LENGTH); - String header = buf.readBytes(HEADER_LENGTH).toString(StandardCharsets.US_ASCII); - - if (header.equals("+RRCB~")) { + if (bufString.startsWith("+RRCB~")) { buf.skipBytes(2); //binary length 26 int deviceId = buf.readUnsignedShort(); if (!identify(String.valueOf(deviceId), channel, remoteAddress)) { @@ -175,7 +172,7 @@ public class GranitProtocolDecoder extends BaseProtocolDecoder { decodeStructure(buf, position); return position; - } else if (header.equals("+DDAT~")) { + } else if (bufString.startsWith("+DDAT~")) { buf.skipBytes(2); //binary length int deviceId = buf.readUnsignedShort(); if (!identify(String.valueOf(deviceId), channel, remoteAddress)) { |