feat(sparkplug): Edge Node implementation at Data Transport level

kura/org.eclipse.kura.cloudconnection.sparkplug.mqtt.provider/OSGI-INF/SparkplugCloudEndpoint.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright (c) 2023 Eurotech and/or its affiliates and others
+    Copyright (c) 2023, 2024 Eurotech and/or its affiliates and others
 
     This program and the accompanying materials are made
     available under the terms of the Eclipse Public License 2.0
@@ -42,12 +42,6 @@
                cardinality="1..1"
                bind="setEventAdmin"/>
 
-    <reference interface="org.eclipse.kura.data.DataTransportService"
-               name="DataTransportService"
-               policy="static"
-               cardinality="1..1"
-               bind="setDataTransportService"/>
-
     <property name="kura.ui.service.hide" type="Boolean" value="true"/>
     <property name="kura.ui.factory.hide" type="Boolean" value="true"/>
 

kura/org.eclipse.kura.cloudconnection.sparkplug.mqtt.provider/OSGI-INF/metatype/org.eclipse.kura.cloudconnection.sparkplug.mqtt.transport.SparkplugDataTransport.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-    Copyright (c) 2023 Eurotech and/or its affiliates and others
+    Copyright (c) 2023, 2024 Eurotech and/or its affiliates and others
 
     This program and the accompanying materials are made
     available under the terms of the Eclipse Public License 2.0
@@ -20,19 +20,41 @@
          description="Data Transport layer configuration.">
 
          <Icon resource="MqttDataTransport" size="32"/>
+
+         <AD id="group.id"
+            name="Sparkplug Group ID"
+            type="String"
+            cardinality="0"
+            required="true"
+            default="group"
+            description="Sparkplug Group identifier to which this Sparkplug Edge Node belongs."/>
+
+        <AD id="node.id"
+            name="Sparkplug Edge Node ID"
+            type="String"
+            cardinality="0"
+            required="true"
+            default="node"
+            description="Sparkplug Edge Node identifier to use for this Cloud Connection."/>
+
+        <AD id="primary.host.application.id"
+            name="Sparkplug Primary Host Application ID"
+            type="String"
+            cardinality="0"
+            required="false"
+            default=""
+            description="Sparkplug Primary Host Application to associate with this Sparkplug Edge Node."/>
 
          <AD id="server.uris"
              name="Server URIs"
              type="String"
              cardinality="0"
              required="true"
              default="tcp://broker1-url:1883"
-             description="List of space-separated URLs of the MQTT brokers to connect to.
-                          When an attempt to connect is initiated the client will start with the
-                          first server in the list and work through the list until a connection
-                          is established with a server. If a connection cannot be made to any of
-                          the servers then the connect attempt fails.
-                          Supported types of connection are tcp: and ssl:."/>
+             description="List of space-separated URIs of the MQTT brokers to connect to.
+                          Supported types of connection are tcp: and ssl:. URIs must not end with /.
+                          If a primary.host.application.id has been set, the client will cycle
+                          over the list until a Primary Host Application becomes online."/>
 
          <AD id="client.id"
              name="Client ID"

kura/org.eclipse.kura.cloudconnection.sparkplug.mqtt.provider/src/main/java/org/eclipse/kura/cloudconnection/sparkplug/mqtt/endpoint/SparkplugCloudEndpoint.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2023 Eurotech and/or its affiliates and others
+ * Copyright (c) 2023, 2024 Eurotech and/or its affiliates and others
  * 
  * This program and the accompanying materials are made
  * available under the terms of the Eclipse Public License 2.0
@@ -28,13 +28,15 @@
 import org.eclipse.kura.cloudconnection.listener.CloudConnectionListener;
 import org.eclipse.kura.cloudconnection.listener.CloudDeliveryListener;
 import org.eclipse.kura.cloudconnection.message.KuraMessage;
-import org.eclipse.kura.cloudconnection.sparkplug.mqtt.transport.SparkplugDataTransport;
+import org.eclipse.kura.cloudconnection.sparkplug.mqtt.message.SparkplugPayloads;
+import org.eclipse.kura.cloudconnection.sparkplug.mqtt.message.SparkplugTopics;
 import org.eclipse.kura.cloudconnection.subscriber.listener.CloudSubscriberListener;
 import org.eclipse.kura.configuration.ConfigurableComponent;
 import org.eclipse.kura.configuration.ConfigurationService;
 import org.eclipse.kura.data.DataService;
-import org.eclipse.kura.data.DataTransportService;
 import org.eclipse.kura.data.listener.DataServiceListener;
+import org.eclipse.kura.type.StringValue;
+import org.eclipse.kura.type.TypedValue;
 import org.osgi.service.event.Event;
 import org.osgi.service.event.EventAdmin;
 import org.slf4j.Logger;
@@ -55,7 +57,6 @@ public class SparkplugCloudEndpoint
 
     private DataService dataService;
     private EventAdmin eventAdmin;
-    private SparkplugDataTransport dataTransport;
 
     public void setDataService(DataService dataService) {
         this.dataService = dataService;
@@ -65,14 +66,6 @@ public void setEventAdmin(EventAdmin eventAdmin) {
         this.eventAdmin = eventAdmin;
     }
 
-    public void setDataTransportService(DataTransportService dataTransport) {
-        if (dataTransport instanceof SparkplugDataTransport) {
-            this.dataTransport = (SparkplugDataTransport) dataTransport;
-        } else {
-            throw new IllegalStateException("The bound DataTransport reference is not a SparkplugDataTransport");
-        }
-    }
-
     public void activate(Map<String, Object> properties) {
         this.kuraServicePid = (String) properties.get(ConfigurationService.KURA_SERVICE_PID);
         logger.info("{} - Activating", this.kuraServicePid);
@@ -172,12 +165,32 @@ public void unregisterCloudConnectionListener(CloudConnectionListener cloudConne
     @Override
     public void onConnectionEstablished() {
         logger.debug("{} - Connection estabilished", this.kuraServicePid);
+
+        sendExampleDeviceBirth();
+
         this.cloudConnectionListeners.forEach(listener -> callSafely(listener::onConnectionEstablished));
         postConnectionChangeEvent(true);
 
         // TO DO: init subscriptions
     }
 
+    private void sendExampleDeviceBirth() {
+        try {
+            this.dataService.subscribe(SparkplugTopics.getDeviceCommandTopic("g1", "n1", "d1"), 1);
+
+            Map<String, TypedValue<?>> metrics = new HashMap<>();
+            TypedValue<String> value = new StringValue("test.value");
+            metrics.put("test.key", value);
+
+            String topic = SparkplugTopics.getDeviceBirthTopic("g1", "n1", "d1");
+            byte[] payload = SparkplugPayloads.getDeviceBirthPayload(1, metrics);
+
+            this.dataService.publish(topic, payload, 0, false, 7);
+        } catch (KuraException e) {
+            logger.error("Error in example", e);
+        }
+    }
+
     @Override
     public void onDisconnecting() {
         // nothing to do

kura/org.eclipse.kura.cloudconnection.sparkplug.mqtt.provider/src/main/java/org/eclipse/kura/cloudconnection/sparkplug/mqtt/message/SparkplugPayloads.java

@@ -1,5 +1,5 @@
 /*******************************************************************************
- * Copyright (c) 2023 Eurotech and/or its affiliates and others
+ * Copyright (c) 2023, 2024 Eurotech and/or its affiliates and others
  * 
  * This program and the accompanying materials are made
  * available under the terms of the Eclipse Public License 2.0
@@ -13,12 +13,20 @@
 package org.eclipse.kura.cloudconnection.sparkplug.mqtt.message;
 
 import java.util.Date;
+import java.util.Map;
+import java.util.Map.Entry;
 
+import org.eclipse.kura.type.TypedValue;
 import org.eclipse.tahu.protobuf.SparkplugBProto.DataType;
 import org.eclipse.tahu.protobuf.SparkplugBProto.Payload;
+import org.eclipse.tahu.protobuf.SparkplugBProto.Payload.Metric;
+
+import com.google.protobuf.InvalidProtocolBufferException;
 
 public class SparkplugPayloads {
 
+    public static final String NODE_CONTROL_REBIRTH_METRIC_NAME = "Node Control/Rebirth";
+
     private SparkplugPayloads() {
     }
 
@@ -29,25 +37,39 @@ public static byte[] getNodeDeathPayload(long bdSeq) {
     public static byte[] getNodeBirthPayload(long bdSeq, long seq) {
         long timestamp = new Date().getTime();
 
-        Payload.Builder protoMsg = Payload.newBuilder();
+        SparkplugBProtobufPayloadBuilder payloadBuilder = new SparkplugBProtobufPayloadBuilder();
+        payloadBuilder.withBdSeq(bdSeq, timestamp);
+        payloadBuilder.withMetric(NODE_CONTROL_REBIRTH_METRIC_NAME, false, DataType.Boolean, timestamp);
+        payloadBuilder.withSeq(seq);
+        payloadBuilder.withTimestamp(timestamp);
 
-        Payload.Metric.Builder bdSeqMetric = Payload.Metric.newBuilder();
-        bdSeqMetric.setName("bdSeq");
-        bdSeqMetric.setLongValue(bdSeq);
-        bdSeqMetric.setDatatype(DataType.Int64.getNumber());
-        bdSeqMetric.setTimestamp(timestamp);
-        protoMsg.addMetrics(bdSeqMetric.build());
+        return payloadBuilder.build();
+    }
 
-        Payload.Metric.Builder rebirthMetric = Payload.Metric.newBuilder();
-        rebirthMetric.setName("Node Control/Rebirth");
-        rebirthMetric.setBooleanValue(false);
-        rebirthMetric.setDatatype(DataType.Boolean_VALUE);
-        protoMsg.addMetrics(rebirthMetric.build());
+    public static byte[] getDeviceBirthPayload(long seq, Map<String, TypedValue<?>> metrics) {
+        long timestamp = new Date().getTime();
 
-        protoMsg.setSeq(seq);
-        protoMsg.setTimestamp(timestamp);
+        SparkplugBProtobufPayloadBuilder payloadBuilder = new SparkplugBProtobufPayloadBuilder();
+        for (Entry<String, TypedValue<?>> metricEntry : metrics.entrySet()) {
+            payloadBuilder.withMetric(metricEntry.getKey(), metricEntry.getValue(), timestamp);
+        }
+
+        payloadBuilder.withSeq(seq);
+        payloadBuilder.withTimestamp(timestamp);
+
+        return payloadBuilder.build();
+    }
 
-        return protoMsg.build().toByteArray();
+    public static boolean getBooleanMetric(String metricName, byte[] rawPayload)
+            throws InvalidProtocolBufferException, NoSuchFieldException {
+        Payload payload = Payload.parseFrom(rawPayload);
+        for (Metric metric : payload.getMetricsList()) {
+            if (metric.getName().equals(metricName)) {
+                return metric.getBooleanValue();
+            }
+        }
+
+        throw new NoSuchFieldException("Metric " + metricName + " not found in payload");
     }
 
 }

kura/org.eclipse.kura.cloudconnection.sparkplug.mqtt.provider/src/main/java/org/eclipse/kura/cloudconnection/sparkplug/mqtt/transport/BdSeqCounter.java

@@ -0,0 +1,31 @@
+/*******************************************************************************
+ * Copyright (c) 2024 Eurotech and/or its affiliates and others
+ * 
+ * This program and the accompanying materials are made
+ * available under the terms of the Eclipse Public License 2.0
+ * which is available at https://www.eclipse.org/legal/epl-2.0/
+ * 
+ * SPDX-License-Identifier: EPL-2.0
+ * 
+ * Contributors:
+ *  Eurotech
+ *******************************************************************************/
+package org.eclipse.kura.cloudconnection.sparkplug.mqtt.transport;
+
+public class BdSeqCounter {
+
+    private int bdSeq = 0;
+
+    public synchronized void next() {
+        if (this.bdSeq == 255) {
+            this.bdSeq = 0;
+        } else {
+            this.bdSeq = this.bdSeq + 1;
+        }
+    }
+
+    public synchronized int getCurrent() {
+        return this.bdSeq;
+    }
+
+}