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-rw-r--r--src/main/java/org/traccar/MainModule.java13
-rw-r--r--src/main/java/org/traccar/forward/EventForwarderMqtt.java103
2 files changed, 112 insertions, 4 deletions
diff --git a/src/main/java/org/traccar/MainModule.java b/src/main/java/org/traccar/MainModule.java
index 078573a60..55211d109 100644
--- a/src/main/java/org/traccar/MainModule.java
+++ b/src/main/java/org/traccar/MainModule.java
@@ -38,6 +38,7 @@ import org.traccar.database.StatisticsManager;
import org.traccar.forward.EventForwarder;
import org.traccar.forward.EventForwarderJson;
import org.traccar.forward.EventForwarderKafka;
+import org.traccar.forward.EventForwarderMqtt;
import org.traccar.forward.PositionForwarder;
import org.traccar.forward.PositionForwarderJson;
import org.traccar.forward.PositionForwarderKafka;
@@ -326,10 +327,14 @@ public class MainModule extends AbstractModule {
@Provides
public static EventForwarder provideEventForwarder(Config config, Client client, ObjectMapper objectMapper) {
if (config.hasKey(Keys.EVENT_FORWARD_URL)) {
- if (config.getString(Keys.EVENT_FORWARD_TYPE).equals("kafka")) {
- return new EventForwarderKafka(config, objectMapper);
- } else {
- return new EventForwarderJson(config, client);
+ String forwardType = config.getString(Keys.EVENT_FORWARD_TYPE);
+ switch (forwardType) {
+ case "kafka":
+ return new EventForwarderKafka(config, objectMapper);
+ case "mqtt":
+ return new EventForwarderMqtt(config, objectMapper);
+ default:
+ return new EventForwarderJson(config, client);
}
}
return null;
diff --git a/src/main/java/org/traccar/forward/EventForwarderMqtt.java b/src/main/java/org/traccar/forward/EventForwarderMqtt.java
new file mode 100644
index 000000000..dc95cb4e2
--- /dev/null
+++ b/src/main/java/org/traccar/forward/EventForwarderMqtt.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright 2022 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 com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.hivemq.client.mqtt.datatypes.MqttQos;
+import com.hivemq.client.mqtt.mqtt5.Mqtt5AsyncClient;
+import com.hivemq.client.mqtt.mqtt5.Mqtt5Client;
+import com.hivemq.client.mqtt.mqtt5.message.auth.Mqtt5SimpleAuth;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.traccar.config.Config;
+import org.traccar.config.Keys;
+
+import java.net.URI;
+import java.net.URISyntaxException;
+import java.util.UUID;
+
+public class EventForwarderMqtt implements EventForwarder {
+
+ private static final Logger LOGGER = LoggerFactory.getLogger(EventForwarderMqtt.class);
+ private final Mqtt5AsyncClient client;
+ private final ObjectMapper objectMapper;
+
+ private final String topic;
+
+ public EventForwarderMqtt(Config config, ObjectMapper objectMapper) {
+ URI url;
+ try {
+ url = new URI(config.getString(Keys.EVENT_FORWARD_URL));
+ } catch (URISyntaxException e) {
+ throw new RuntimeException(e);
+ }
+
+ String userInfo = url.getUserInfo();
+ Mqtt5SimpleAuth simpleAuth = null;
+ if (userInfo != null) {
+ int delimiter = userInfo.indexOf(':');
+ if (delimiter == -1) {
+ throw new IllegalArgumentException("Wrong credentials. Should be in format \"username:password\"");
+ } else {
+ simpleAuth = Mqtt5SimpleAuth.builder()
+ .username(userInfo.substring(0, delimiter++))
+ .password(userInfo.substring(delimiter).getBytes())
+ .build();
+ }
+ }
+
+ String host = url.getHost();
+ int port = url.getPort();
+ client = Mqtt5Client.builder()
+ .identifier("traccar-" + UUID.randomUUID().toString())
+ .serverHost(host)
+ .serverPort(port)
+ .simpleAuth(simpleAuth)
+ .automaticReconnectWithDefaultConfig()
+ .buildAsync();
+
+ client.connectWith()
+ .send()
+ .whenComplete((message, e) -> {
+ if (e != null) {
+ throw new RuntimeException(e);
+ }
+ });
+
+ this.objectMapper = objectMapper;
+ topic = config.getString(Keys.EVENT_FORWARD_TOPIC);
+ }
+
+ @Override
+ public void forward(EventData eventData, ResultHandler resultHandler) {
+ byte[] payload;
+ try {
+ payload = objectMapper.writeValueAsString(eventData).getBytes();
+ } catch (JsonProcessingException e) {
+ resultHandler.onResult(false, e);
+ return;
+ }
+
+ client.publishWith()
+ .topic(topic)
+ .qos(MqttQos.AT_LEAST_ONCE)
+ .payload(payload)
+ .send()
+ .whenComplete((message, e) -> resultHandler.onResult(e == null, e));
+ }
+
+}