1 files changed, 55 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/forward/PositionForwarderMqtt.java b/src/main/java/org/traccar/forward/PositionForwarderMqtt.java
new file mode 100644
index 000000000..e530c76a1
--- /dev/null
+++ b/src/main/java/org/traccar/forward/PositionForwarderMqtt.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2022 - 2023 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.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.traccar.forward;
+
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+import org.traccar.helper.MqttUtil;
+
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.hivemq.client.mqtt.mqtt3.Mqtt3AsyncClient;
+
+public class PositionForwarderMqtt implements PositionForwarder {
+    private final Mqtt3AsyncClient client;
+
+    @Override
+    public void forward(final PositionData positionData, final ResultHandler resultHandler) {
+        publish(topic, positionData, resultHandler);
+    }
+    private final ObjectMapper objectMapper;
+
+    protected final String topic;
+
+
+    public PositionForwarderMqtt(final Config config, final ObjectMapper objectMapper) {
+        this.topic = config.getString(Keys.FORWARD_TOPIC);
+        this.client = MqttUtil.createClient(config.getString(Keys.FORWARD_URL));
+        this.objectMapper = objectMapper;
+    }
+
+    protected void publish(final String pubTopic, final Object object, final ResultHandler resultHandler) {
+        final String payload;
+        try {
+            payload = objectMapper.writeValueAsString(object);
+        } catch (JsonProcessingException e) {
+            resultHandler.onResult(false, e);
+            return;
+        }
+        MqttUtil.publish(client, pubTopic, payload, (message, e) -> resultHandler.onResult(e == null, e));
+    }
+
+}
+\ No newline at end of file