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authorAnton Tananaev <anton@traccar.org>2024-02-01 07:49:28 -0800
committerAnton Tananaev <anton@traccar.org>2024-02-01 07:49:28 -0800
commit7d82b0f88197f8ebfcef949abec4ddca07d9ed87 (patch)
treecb35b52086a93781b3f8d709834cbede75e3a6bd /src/main/java/org
parentcff42765e3ab39dccb73ea7d49f4b6270fe9931a (diff)
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Decode FleetGuide locations
Diffstat (limited to 'src/main/java/org')
-rw-r--r--src/main/java/org/traccar/protocol/FleetGuideProtocolDecoder.java77
1 files changed, 76 insertions, 1 deletions
diff --git a/src/main/java/org/traccar/protocol/FleetGuideProtocolDecoder.java b/src/main/java/org/traccar/protocol/FleetGuideProtocolDecoder.java
index 94d837145..9fddec922 100644
--- a/src/main/java/org/traccar/protocol/FleetGuideProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/FleetGuideProtocolDecoder.java
@@ -21,9 +21,16 @@ import io.netty.channel.Channel;
import org.traccar.BaseProtocolDecoder;
import org.traccar.Protocol;
import org.traccar.helper.BitUtil;
+import org.traccar.helper.UnitsConverter;
+import org.traccar.model.Position;
import org.traccar.session.DeviceSession;
import java.net.SocketAddress;
+import java.util.Date;
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Set;
public class FleetGuideProtocolDecoder extends BaseProtocolDecoder {
@@ -73,9 +80,77 @@ public class FleetGuideProtocolDecoder extends BaseProtocolDecoder {
data = buf.readRetainedSlice(length);
}
+ List<Position> positions = new LinkedList<>();
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ Set<Integer> recordTypes = new HashSet<>();
+
+ while (data.isReadable()) {
+
+ int recordHeader = data.readUnsignedShortLE();
+ int recordLength = BitUtil.to(recordHeader, 10);
+ int recordType = BitUtil.from(recordHeader, 10);
+ int recordEndIndex = data.readerIndex() + recordLength;
+
+ if (recordTypes.contains(recordType)) {
+ positions.add(processPosition(position));
+ position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+ recordTypes.clear();
+ }
+ recordTypes.add(recordType);
+
+ switch (recordType) {
+ case 0:
+ position.setTime(new Date((data.readUnsignedIntLE() + 1262304000) * 1000)); // since 2010-01-01
+ break;
+ case 1:
+ position.setLatitude(data.readUnsignedIntLE() * 90.0 / 0xFFFFFFFFL);
+ position.setLongitude(data.readUnsignedIntLE() * 180.0 / 0xFFFFFFFFL);
+ int speed = data.readUnsignedShortLE();
+ position.setSpeed(UnitsConverter.knotsFromKph(BitUtil.to(speed, 14) * 0.1));
+ if (BitUtil.check(speed, 14)) {
+ position.setLatitude(-position.getLatitude());
+ }
+ if (BitUtil.check(speed, 15)) {
+ position.setLongitude(-position.getLongitude());
+ }
+ int course = data.readUnsignedShortLE();
+ position.setSpeed(BitUtil.to(course, 9));
+ int motion = BitUtil.between(course, 9, 11);
+ if (motion > 0) {
+ position.set(Position.KEY_MOTION, motion == 1);
+ }
+ position.set(Position.KEY_SATELLITES, BitUtil.from(course, 11));
+ int altitude = data.readUnsignedShortLE();
+ position.setAltitude(BitUtil.to(altitude, 14));
+ if (BitUtil.check(altitude, 14)) {
+ position.setAltitude(-position.getAltitude());
+ }
+ break;
+ default:
+ break;
+ }
+
+ data.readerIndex(recordEndIndex);
+
+ }
+
data.release();
- return null;
+ return positions.isEmpty() ? null : positions;
+ }
+
+ private Position processPosition(Position position) {
+ if (position.getFixTime() == null) {
+ position.setTime(new Date());
+ }
+ if (!position.getAttributes().containsKey(Position.KEY_SATELLITES)) {
+ getLastLocation(position, null);
+ }
+ return position;
}
private int readVarSize(ByteBuf buf) {