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authorAnton Tananaev <anton@traccar.org>2023-02-14 15:11:07 -0800
committerAnton Tananaev <anton@traccar.org>2023-02-14 15:11:07 -0800
commit9ceecf357132989390e8bb18160338b27539eaaa (patch)
tree5dc13e4b2897cc150ca0eb2d46e31d5ada3a6b29
parent782fd787d14bd041c818e25b06f5ebe844854163 (diff)
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Refactor Totem decoder
-rw-r--r--src/main/java/org/traccar/protocol/TotemProtocolDecoder.java123
1 files changed, 77 insertions, 46 deletions
diff --git a/src/main/java/org/traccar/protocol/TotemProtocolDecoder.java b/src/main/java/org/traccar/protocol/TotemProtocolDecoder.java
index 9d0d794f8..fc3dce86f 100644
--- a/src/main/java/org/traccar/protocol/TotemProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/TotemProtocolDecoder.java
@@ -1,5 +1,5 @@
/*
- * Copyright 2013 - 2020 Anton Tananaev (anton@traccar.org)
+ * Copyright 2013 - 2023 Anton Tananaev (anton@traccar.org)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -135,7 +135,7 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
private static final Pattern PATTERN4 = new PatternBuilder()
.text("$$") // header
.number("dddd") // length
- .number("(xx)") // type
+ .number("xx") // type
.number("(d+)|") // imei
.number("(x{8})") // status
.number("(dd)(dd)(dd)") // date (yymmdd)
@@ -257,7 +257,20 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
}
}
- private boolean decode12(Position position, Parser parser, Pattern pattern) {
+ private Position decode12(Channel channel, SocketAddress remoteAddress, String sentence, Pattern pattern) {
+
+ Parser parser = new Parser(pattern, sentence);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+ if (deviceSession == null) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
if (parser.hasNext()) {
position.set(Position.KEY_ALARM, decodeAlarm123(Short.parseShort(parser.next(), 16)));
@@ -283,7 +296,7 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
year = parser.nextInt(0);
}
if (year == 0) {
- return false; // ignore invalid data
+ return null; // ignore invalid data
}
dateBuilder.setDate(year, month, day);
position.setTime(dateBuilder.getDate());
@@ -331,10 +344,23 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
position.set(Position.PREFIX_TEMP + 1, parser.next());
position.set(Position.KEY_ODOMETER, parser.nextDouble(0) * 1000);
- return true;
+ return position;
}
- private boolean decode3(Position position, Parser parser) {
+ private Position decode3(Channel channel, SocketAddress remoteAddress, String sentence) {
+
+ Parser parser = new Parser(PATTERN3, sentence);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+ if (deviceSession == null) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
if (parser.hasNext()) {
position.set(Position.KEY_ALARM, decodeAlarm123(Short.parseShort(parser.next(), 16)));
@@ -363,10 +389,27 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
position.setLatitude(parser.nextCoordinate());
position.setLongitude(parser.nextCoordinate());
- return true;
+ return position;
}
- private boolean decode4(Position position, Parser parser) {
+ private Position decode4(Channel channel, SocketAddress remoteAddress, String sentence) {
+
+ int type = Integer.parseInt(sentence.substring(6, 8), 16);
+
+ Parser parser = new Parser(PATTERN4, sentence);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+ if (deviceSession == null) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ position.set(Position.KEY_ALARM, decodeAlarm4(type));
long status = parser.nextHexLong();
@@ -427,10 +470,23 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
position.setLatitude(parser.nextCoordinate());
position.setLongitude(parser.nextCoordinate());
- return true;
+ return position;
}
- private boolean decodeObd(Position position, Parser parser) {
+ private Position decodeObd(Channel channel, SocketAddress remoteAddress, String sentence) {
+
+ Parser parser = new Parser(PATTERN_OBD, sentence);
+ if (!parser.matches()) {
+ return null;
+ }
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
+ if (deviceSession == null) {
+ return null;
+ }
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
position.setValid(true);
position.setTime(parser.nextDateTime());
@@ -451,7 +507,7 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
position.set(Position.KEY_THROTTLE, parser.nextInt());
position.set(Position.KEY_FUEL_LEVEL, parser.nextInt());
- return true;
+ return position;
}
@Override
@@ -459,50 +515,25 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
Channel channel, SocketAddress remoteAddress, Object msg) throws Exception {
String sentence = (String) msg;
- Pattern pattern = PATTERN3;
+
+ Position position;
if (sentence.contains("$Cloud")) {
- pattern = PATTERN_OBD;
+ position = decodeObd(channel, remoteAddress, sentence);
} else if (sentence.charAt(2) == '0') {
- pattern = PATTERN4;
+ position = decode4(channel, remoteAddress, sentence);
} else if (sentence.contains("$GPRMC")) {
- pattern = PATTERN1;
+ position = decode12(channel, remoteAddress, sentence, PATTERN1);
} else {
int index = sentence.indexOf('|');
if (index != -1 && sentence.indexOf('|', index + 1) != -1) {
- pattern = PATTERN2;
+ position = decode12(channel, remoteAddress, sentence, PATTERN2);
+ } else {
+ position = decode3(channel, remoteAddress, sentence);
}
}
- Parser parser = new Parser(pattern, sentence);
- if (!parser.matches()) {
- return null;
- }
-
- Position position = new Position(getProtocolName());
-
- if (pattern == PATTERN4) {
- position.set(Position.KEY_ALARM, decodeAlarm4(parser.nextHexInt()));
- }
-
- DeviceSession deviceSession = getDeviceSession(channel, remoteAddress, parser.next());
- if (deviceSession == null) {
- return null;
- }
- position.setDeviceId(deviceSession.getDeviceId());
-
- boolean result;
- if (pattern == PATTERN1 || pattern == PATTERN2) {
- result = decode12(position, parser, pattern);
- } else if (pattern == PATTERN3) {
- result = decode3(position, parser);
- } else if (pattern == PATTERN4) {
- result = decode4(position, parser);
- } else {
- result = decodeObd(position, parser);
- }
-
if (channel != null) {
- if (pattern == PATTERN4) {
+ if (sentence.charAt(2) == '0') {
String response = "$$0014AA" + sentence.substring(sentence.length() - 6, sentence.length() - 2);
response += String.format("%02X", Checksum.xor(response)).toUpperCase();
channel.writeAndFlush(new NetworkMessage(response, remoteAddress));
@@ -511,7 +542,7 @@ public class TotemProtocolDecoder extends BaseProtocolDecoder {
}
}
- return result ? position : null;
+ return position;
}
}