diff options
Diffstat (limited to 'src/main/java/org/traccar/forward/MqttClient.java')
-rw-r--r-- | src/main/java/org/traccar/forward/MqttClient.java | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/main/java/org/traccar/forward/MqttClient.java b/src/main/java/org/traccar/forward/MqttClient.java new file mode 100644 index 000000000..9059fc876 --- /dev/null +++ b/src/main/java/org/traccar/forward/MqttClient.java @@ -0,0 +1,76 @@ +/* + * Copyright 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 java.net.URI; +import java.net.URISyntaxException; +import java.util.UUID; +import java.util.function.BiConsumer; + +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.Mqtt5ClientBuilder; +import com.hivemq.client.mqtt.mqtt5.message.auth.Mqtt5SimpleAuth; +import com.hivemq.client.mqtt.mqtt5.message.publish.Mqtt5PublishResult; + +public class MqttClient { + private final Mqtt5AsyncClient client; + MqttClient(String url) { + URI uri; + try { + uri = new URI(url); + } catch (URISyntaxException e) { + throw new RuntimeException(e); + } + + Mqtt5SimpleAuth simpleAuth = this.getSimpleAuth(uri); + + String host = uri.getHost(); + int port = uri.getPort(); + Mqtt5ClientBuilder builder = Mqtt5Client.builder().identifier("traccar-" + UUID.randomUUID()) + .serverHost(host).serverPort(port).simpleAuth(simpleAuth).automaticReconnectWithDefaultConfig(); + + client = builder.buildAsync(); + client.connectWith().send().whenComplete((message, e) -> { + throw new RuntimeException(e); + }); + } + + + private Mqtt5SimpleAuth getSimpleAuth(final URI uri) { + String userInfo = uri.getUserInfo(); + Mqtt5SimpleAuth simpleAuth = null; + if (userInfo != null) { + int delimiter = userInfo.indexOf(':'); + if (delimiter == -1) { + throw new IllegalArgumentException("Wrong MQTT credentials. Should be in format \"username:password\""); + } else { + simpleAuth = Mqtt5SimpleAuth.builder().username(userInfo.substring(0, delimiter++)) + .password(userInfo.substring(delimiter).getBytes()).build(); + } + } + return simpleAuth; + } + + public void publish(final String pubTopic, final String payload, + final BiConsumer<? super Mqtt5PublishResult, + ? super Throwable> whenComplete) { + client.publishWith().topic(pubTopic).qos(MqttQos.AT_LEAST_ONCE).payload(payload.getBytes()).send() + .whenComplete(whenComplete); + } + +} |