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-rw-r--r--src/main/java/org/traccar/protocol/RuptelaProtocolDecoder.java8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/main/java/org/traccar/protocol/RuptelaProtocolDecoder.java b/src/main/java/org/traccar/protocol/RuptelaProtocolDecoder.java
index 294768860..ecb5c4204 100644
--- a/src/main/java/org/traccar/protocol/RuptelaProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/RuptelaProtocolDecoder.java
@@ -22,6 +22,7 @@ import org.traccar.BaseProtocolDecoder;
import org.traccar.session.DeviceSession;
import org.traccar.NetworkMessage;
import org.traccar.Protocol;
+import org.traccar.helper.BitUtil;
import org.traccar.helper.DataConverter;
import org.traccar.helper.UnitsConverter;
import org.traccar.model.Position;
@@ -236,9 +237,9 @@ public class RuptelaProtocolDecoder extends BaseProtocolDecoder {
buf.readUnsignedByte(); // timestamp extension
if (type == MSG_EXTENDED_RECORDS) {
- int b = buf.readUnsignedByte(); // record extension
- int noRecordsToMerge = (b & 0xf0) >> 4;
- int currentRecord = b & 0x0f;
+ int recordExtension = buf.readUnsignedByte(); // record extension
+ int noRecordsToMerge = BitUtil.between(recordExtension, 4, 8);
+ int currentRecord = BitUtil.to(recordExtension, 4);
if (currentRecord > 0 && noRecordsToMerge >= currentRecord) {
if (!positions.isEmpty()
@@ -247,7 +248,6 @@ public class RuptelaProtocolDecoder extends BaseProtocolDecoder {
position = positions.remove(positions.size() - 1);
}
}
-
}
buf.readUnsignedByte(); // priority (reserved)