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-rw-r--r--src/org/traccar/protocol/Gl200ProtocolDecoder.java5
1 files changed, 3 insertions, 2 deletions
diff --git a/src/org/traccar/protocol/Gl200ProtocolDecoder.java b/src/org/traccar/protocol/Gl200ProtocolDecoder.java
index e2ddccaa7..2d28ea199 100644
--- a/src/org/traccar/protocol/Gl200ProtocolDecoder.java
+++ b/src/org/traccar/protocol/Gl200ProtocolDecoder.java
@@ -38,7 +38,8 @@ public class Gl200ProtocolDecoder extends BaseProtocolDecoder {
}
private static final Pattern PATTERN_ACK = new PatternBuilder()
- .text("+ACK:GT").expression("...,")
+ .text("+ACK:GT")
+ .expression("...,") // type
.number("([0-9A-Z]{2}xxxx),") // protocol version
.number("(d{15}),") // imei
.any().text(",")
@@ -639,7 +640,7 @@ public class Gl200ProtocolDecoder extends BaseProtocolDecoder {
Object result;
String type = sentence.substring(typeIndex + 3, typeIndex + 6);
- if (typeIndex >= 4 && sentence.startsWith("+ACK", typeIndex - 4)) {
+ if (sentence.startsWith("+ACK")) {
result = decodeAck(channel, remoteAddress, sentence, type);
} else {
switch (type) {