From 49724e51630410e9a2c99a27ec7963a315f6575e Mon Sep 17 00:00:00 2001 From: Anton Tananaev Date: Tue, 29 Jun 2021 20:51:13 -0700 Subject: WebSocket connection keepalive --- src/main/java/org/traccar/api/AsyncSocket.java | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'src/main/java/org/traccar/api/AsyncSocket.java') diff --git a/src/main/java/org/traccar/api/AsyncSocket.java b/src/main/java/org/traccar/api/AsyncSocket.java index b2ff5031a..b1853822d 100644 --- a/src/main/java/org/traccar/api/AsyncSocket.java +++ b/src/main/java/org/traccar/api/AsyncSocket.java @@ -1,5 +1,5 @@ /* - * Copyright 2015 - 2016 Anton Tananaev (anton@traccar.org) + * Copyright 2015 - 2021 Anton Tananaev (anton@traccar.org) * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. @@ -63,6 +63,11 @@ public class AsyncSocket extends WebSocketAdapter implements ConnectionManager.U Context.getConnectionManager().removeListener(userId, this); } + @Override + public void onKeepalive() { + sendData(new HashMap<>()); + } + @Override public void onUpdateDevice(Device device) { Map> data = new HashMap<>(); @@ -85,7 +90,7 @@ public class AsyncSocket extends WebSocketAdapter implements ConnectionManager.U } private void sendData(Map> data) { - if (!data.isEmpty() && isConnected()) { + if (isConnected()) { try { getRemote().sendString(Context.getObjectMapper().writeValueAsString(data), null); } catch (JsonProcessingException e) { -- cgit v1.2.3