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authorAnton Tananaev <anton@traccar.org>2023-01-20 17:30:13 -0800
committerAnton Tananaev <anton@traccar.org>2023-01-20 17:30:13 -0800
commitf8b0bb61df4865b2bac1f0fe98988c8db207422f (patch)
treea99ee2330bf0eac693f34e93cbdda510d0327ec4 /src/main/java
parentd2237d91de4dd655a38e9078708eec38906470e0 (diff)
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Extend GalileoSky support
Diffstat (limited to 'src/main/java')
-rw-r--r--src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java48
1 files changed, 46 insertions, 2 deletions
diff --git a/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java b/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java
index fc8a49cf5..b5c6f77ef 100644
--- a/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/GalileoProtocolDecoder.java
@@ -23,6 +23,7 @@ import org.traccar.BaseProtocolDecoder;
import org.traccar.NetworkMessage;
import org.traccar.Protocol;
import org.traccar.helper.BitBuffer;
+import org.traccar.helper.BitUtil;
import org.traccar.helper.UnitsConverter;
import org.traccar.model.Position;
import org.traccar.session.DeviceSession;
@@ -66,7 +67,7 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder {
};
int[] l3 = {
0x63, 0x64, 0x6f, 0x5d, 0x65, 0x66, 0x67, 0x68,
- 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e
+ 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0xfa
};
int[] l4 = {
0x20, 0x33, 0x44, 0x90, 0xc0, 0xc2, 0xc3, 0xd3,
@@ -88,6 +89,8 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder {
}
TAG_LENGTH_MAP.put(0x5b, 7); // variable length
TAG_LENGTH_MAP.put(0x5c, 68);
+ TAG_LENGTH_MAP.put(0xfd, 8);
+ TAG_LENGTH_MAP.put(0xfe, 8);
}
private static int getTagLength(int tag) {
@@ -239,6 +242,8 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder {
}
} else if (header == 0x07) {
return decodePhoto(channel, remoteAddress, buf);
+ } else if (header == 0x08) {
+ return decodeCompressedPositions(channel, remoteAddress, buf);
}
return null;
@@ -259,7 +264,7 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder {
position.setValid(bits.readUnsigned(1) == 0);
position.setLongitude(360 * bits.readUnsigned(22) / 4194304.0 - 180);
- position.setLatitude(360 * bits.readUnsigned(21) / 2097152.0 - 90);
+ position.setLatitude(180 * bits.readUnsigned(21) / 2097152.0 - 90);
if (bits.readUnsigned(1) > 0) {
position.set(Position.KEY_ALARM, Position.ALARM_GENERAL);
}
@@ -392,4 +397,43 @@ public class GalileoProtocolDecoder extends BaseProtocolDecoder {
return position;
}
+ private List<Position> decodeCompressedPositions(Channel channel, SocketAddress remoteAddress, ByteBuf buf) {
+
+ buf.readUnsignedShortLE(); // length
+
+ DeviceSession deviceSession = getDeviceSession(channel, remoteAddress);
+ if (deviceSession == null) {
+ return null;
+ }
+
+ List<Position> positions = new LinkedList<>();
+ while (buf.readableBytes() > 2) {
+
+ Position position = new Position(getProtocolName());
+ position.setDeviceId(deviceSession.getDeviceId());
+
+ decodeMinimalDataSet(position, buf);
+
+ int[] tags = new int[BitUtil.to(buf.readUnsignedByte(), 8)];
+ for (int i = 0; i < tags.length; i++) {
+ tags[i] = buf.readUnsignedByte();
+ }
+
+ for (int tag : tags) {
+ decodeTag(position, buf, tag);
+ }
+
+ positions.add(position);
+
+ }
+
+ sendResponse(channel, 0x02, buf.readUnsignedShortLE());
+
+ for (Position p : positions) {
+ p.setDeviceId(deviceSession.getDeviceId());
+ }
+
+ return positions.isEmpty() ? null : positions;
+ }
+
}