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-rw-r--r--src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java7
1 files changed, 6 insertions, 1 deletions
diff --git a/src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java b/src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java
index d1e079711..aff722c46 100644
--- a/src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java
+++ b/src/main/java/org/traccar/protocol/OrbcommProtocolDecoder.java
@@ -27,6 +27,7 @@ import org.traccar.model.Position;
import javax.json.Json;
import javax.json.JsonArray;
import javax.json.JsonObject;
+import javax.json.JsonValue;
import java.io.StringReader;
import java.net.SocketAddress;
import java.nio.charset.StandardCharsets;
@@ -49,7 +50,7 @@ public class OrbcommProtocolDecoder extends BaseProtocolDecoder {
String content = response.content().toString(StandardCharsets.UTF_8);
JsonObject json = Json.createReader(new StringReader(content)).readObject();
- if (channel != null) {
+ if (channel != null && !json.getString("NextStartUTC").isEmpty()) {
OrbcommProtocolPoller poller =
BasePipelineFactory.getHandler(channel.pipeline(), OrbcommProtocolPoller.class);
if (poller != null) {
@@ -59,6 +60,10 @@ public class OrbcommProtocolDecoder extends BaseProtocolDecoder {
}
}
+ if (json.get("Messages").getValueType() == JsonValue.ValueType.NULL) {
+ return null;
+ }
+
LinkedList<Position> positions = new LinkedList<>();
JsonArray messages = json.getJsonArray("Messages");