Modifications to the RPi Agent to publish to the DAS MQTT Receiver for temperature

components/iot-plugins/iot-analytics/org.wso2.carbon.device.mgt.iot.analytics/src/main/resources/carbonapps/Temperature/Eventreceiver_mqtt_temperature_1.0.0/EventReceiver_mqtt_temperature.xml

@@ -19,7 +19,7 @@
 
 <eventReceiver name="temperature-mqtt" statistics="disable" trace="disable" xmlns="http://wso2.org/carbon/eventreceiver">
 <from eventAdapterType="oauth-mqtt">
-    <property name="topic">wso2/carbon.super/+/temperature</property>
+    <property name="topic">wso2/carbon.super/+/+/temperature</property>
     <property name="username">admin</property>
     <property name="contentValidationParams">device_id_json_path:event.metaData.deviceId,device_id_topic_hierarchy_index:3</property>
     <property name="contentValidation">default</property>

components/iot-plugins/raspberrypi-plugin/org.wso2.carbon.device.mgt.iot.raspberrypi.api/src/main/java/org/wso2/carbon/device/mgt/iot/raspberrypi/service/impl/transport/RaspberryPiMQTTConnector.java

@@ -22,11 +22,17 @@ import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
 import org.eclipse.paho.client.mqttv3.MqttException;
 import org.eclipse.paho.client.mqttv3.MqttMessage;
+import org.json.JSONObject;
 import org.wso2.carbon.apimgt.application.extension.APIManagementProviderService;
 import org.wso2.carbon.apimgt.application.extension.dto.ApiApplicationKey;
 import org.wso2.carbon.apimgt.application.extension.exception.APIManagerException;
 import org.wso2.carbon.context.PrivilegedCarbonContext;
+import org.wso2.carbon.device.mgt.common.Device;
+import org.wso2.carbon.device.mgt.common.DeviceIdentifier;
+import org.wso2.carbon.device.mgt.common.DeviceManagementException;
+import org.wso2.carbon.device.mgt.core.service.DeviceManagementProviderService;
 import org.wso2.carbon.device.mgt.iot.controlqueue.mqtt.MqttConfig;
+import org.wso2.carbon.device.mgt.iot.raspberrypi.service.impl.exception.RaspberrypiException;
 import org.wso2.carbon.device.mgt.iot.raspberrypi.service.impl.util.APIUtil;
 import org.wso2.carbon.device.mgt.iot.raspberrypi.plugin.constants.RaspberrypiConstants;
 import org.wso2.carbon.device.mgt.iot.transport.TransportHandlerException;
@@ -37,10 +43,12 @@ import org.wso2.carbon.identity.jwt.client.extension.exception.JWTClientExceptio
 import org.wso2.carbon.user.api.UserStoreException;
 
 import java.nio.charset.StandardCharsets;
+import java.security.PublicKey;
 import java.util.UUID;
 
 public class RaspberryPiMQTTConnector extends MQTTTransportHandler {
     private static Log log = LogFactory.getLog(RaspberryPiMQTTConnector.class);
+//  subscribeTopic is not used for the RaspberryPi sample since the DAS device directly publishes to DAS MQTT receiver
     private static final String subscribeTopic = "wso2/+/"+ RaspberrypiConstants.DEVICE_TYPE + "/+/publisher";
     private static final String KEY_TYPE = "PRODUCTION";
     private static final String EMPTY_STRING = "";
@@ -104,7 +112,26 @@ public class RaspberryPiMQTTConnector extends MQTTTransportHandler {
     }
 
     @Override
-    public void processIncomingMessage(MqttMessage message, String... messageParams) throws TransportHandlerException {
+    public void publishDeviceData(String... publishData) throws TransportHandlerException {
+        if (publishData.length != 3) {
+            String errorMsg = "Incorrect number of arguments received to SEND-MQTT Message. " +
+                    "Need to be [owner, deviceId, resource{BULB/TEMP}, state{ON/OFF or null}]";
+            log.error(errorMsg);
+            throw new TransportHandlerException(errorMsg);
+        }
+
+        String deviceId = publishData[0];
+        String resource = publishData[1];
+        String state = publishData[2];
+
+        MqttMessage pushMessage = new MqttMessage();
+        String publishTopic = "wso2/" + APIUtil.getTenantDomainOftheUser() + "/"
+                + RaspberrypiConstants.DEVICE_TYPE + "/" + deviceId;
+        String actualMessage = resource + ":" + state;
+        pushMessage.setPayload(actualMessage.getBytes(StandardCharsets.UTF_8));
+        pushMessage.setQos(DEFAULT_MQTT_QUALITY_OF_SERVICE);
+        pushMessage.setRetained(false);
+        publishToQueue(publishTopic, pushMessage);
     }
 
     @Override
@@ -135,6 +162,10 @@ public class RaspberryPiMQTTConnector extends MQTTTransportHandler {
         terminatorThread.start();
     }
 
+    @Override
+    public void processIncomingMessage(MqttMessage mqttMessage, String... messageParams) throws TransportHandlerException {
+    }
+
     @Override
     public void processIncomingMessage() throws TransportHandlerException {
 
@@ -154,28 +185,5 @@ public class RaspberryPiMQTTConnector extends MQTTTransportHandler {
     public void publishDeviceData(MqttMessage publishData) throws TransportHandlerException {
 
     }
-
-    @Override
-    public void publishDeviceData(String... publishData) throws TransportHandlerException {
-        if (publishData.length != 3) {
-            String errorMsg = "Incorrect number of arguments received to SEND-MQTT Message. " +
-                    "Need to be [owner, deviceId, resource{BULB/TEMP}, state{ON/OFF or null}]";
-            log.error(errorMsg);
-            throw new TransportHandlerException(errorMsg);
-        }
-
-        String deviceId = publishData[0];
-        String resource = publishData[1];
-        String state = publishData[2];
-
-        MqttMessage pushMessage = new MqttMessage();
-        String publishTopic = "wso2/" + APIUtil.getTenantDomainOftheUser() + "/"
-                + RaspberrypiConstants.DEVICE_TYPE + "/" + deviceId;
-        String actualMessage = resource + ":" + state;
-        pushMessage.setPayload(actualMessage.getBytes(StandardCharsets.UTF_8));
-        pushMessage.setQos(DEFAULT_MQTT_QUALITY_OF_SERVICE);
-        pushMessage.setRetained(false);
-        publishToQueue(publishTopic, pushMessage);
-    }
 }
 

features/iot-plugins-feature/raspberrypi-plugin-feature/org.wso2.carbon.device.mgt.iot.raspberrypi.feature/src/main/resources/agent/src/RaspberryAgent.py

@@ -22,7 +22,7 @@
 import logging, logging.handlers
 import sys, os, signal, argparse
 import running_mode
-import time, threading, datetime
+import time, threading, datetime, calendar
 
 # import httplib, ssl
 # from functools import wraps
@@ -176,9 +176,9 @@ def configureLogger(loggerName):
 #       This method connects to the Device-Cloud and pushes data
 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 def connectAndPushData():
+    currentTime = calendar.timegm(time.gmtime())
     rPiTemperature = iotUtils.LAST_TEMP  # Push the last read temperature value
-    PUSH_DATA = iotUtils.DEVICE_INFO + iotUtils.DEVICE_DATA.format(temperature=rPiTemperature)
+    PUSH_DATA = iotUtils.DEVICE_INFO.format(currentTime, rPiTemperature)
-    PUSH_DATA += '}'
     
     print '~~~~~~~~~~~~~~~~~~~~~~~~ Publishing Device-Data ~~~~~~~~~~~~~~~~~~~~~~~~~'
     print ('PUBLISHED DATA: ' + PUSH_DATA)

features/iot-plugins-feature/raspberrypi-plugin-feature/org.wso2.carbon.device.mgt.iot.raspberrypi.feature/src/main/resources/agent/src/iotUtils.py

@@ -26,7 +26,7 @@ import random
 import running_mode
 
 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-#			HOST_NAME(IP) of the Device
+#           HOST_NAME(IP) of the Device
 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 global HOST_NAME
 HOST_NAME = "0.0.0.0"
@@ -52,6 +52,7 @@ configParser = ConfigParser.RawConfigParser()
 configFilePath = os.path.join(os.path.dirname(__file__), './deviceConfig.properties')
 configParser.read(configFilePath)
 
+SERVER_NAME = configParser.get('Device-Configurations', 'server-name')
 DEVICE_OWNER = configParser.get('Device-Configurations', 'owner')
 DEVICE_ID = configParser.get('Device-Configurations', 'deviceId')
 MQTT_EP = configParser.get('Device-Configurations', 'mqtt-ep')
@@ -60,12 +61,18 @@ AUTH_TOKEN = configParser.get('Device-Configurations', 'auth-token')
 CONTROLLER_CONTEXT = configParser.get('Device-Configurations', 'controller-context')
 MQTT_SUB_TOPIC = configParser.get('Device-Configurations', 'mqtt-sub-topic').format(owner = DEVICE_OWNER, deviceId = DEVICE_ID)
 MQTT_PUB_TOPIC = configParser.get('Device-Configurations', 'mqtt-pub-topic').format(owner = DEVICE_OWNER, deviceId = DEVICE_ID)
-DEVICE_INFO = '{"owner":"' + DEVICE_OWNER + '","deviceId":"' + DEVICE_ID + '","temperature":'
+DEVICE_INFO = '{{"event":{{"metaData":{{"owner":"' + DEVICE_OWNER + '","type":"raspberrypi","deviceId":"' + DEVICE_ID + '","time":{:.2f}}},"payloadData":{{"temperature":{:.2f}}}}}}}'
+
+# '{"owner":"' + DEVICE_OWNER + '","deviceId":"' + DEVICE_ID + '","temperature":'
 HTTPS_EP = configParser.get('Device-Configurations', 'https-ep')
 HTTP_EP = configParser.get('Device-Configurations', 'http-ep')
 APIM_EP = configParser.get('Device-Configurations', 'apim-ep')
-DEVICE_IP = '"{ip}","value":'
+# DEVICE_IP = '"{ip}","value":'
-DEVICE_DATA = '"{temperature}"'  # '"{temperature}:{load}:OFF"'
+# DEVICE_DATA = '"{temperature}"'  # '"{temperature}:{load}:OFF"'
+
+
+# {"event": {"metaData": {"owner": "admin", "type": "arduino","deviceId": "s15kdwf34vue","time": 0},"payloadData": { "temperature": 22} }}
+
 
 
 ### ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

features/iot-plugins-feature/raspberrypi-plugin-feature/org.wso2.carbon.device.mgt.iot.raspberrypi.feature/src/main/resources/agent/src/mqttConnector.py

@@ -78,20 +78,22 @@ def publish(msg):
 
 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 #       The Main method of the server script
-#			This method is invoked from RaspberryStats.py on a new thread
+#           This method is invoked from RaspberryStats.py on a new thread
 # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 def main():
     MQTT_ENDPOINT = iotUtils.MQTT_EP.split(":")
     MQTT_IP = MQTT_ENDPOINT[1].replace('//','')
     MQTT_PORT = int(MQTT_ENDPOINT[2])
 
-    DEV_OWNER = iotUtils.DEVICE_OWNER
+    SERVER_NAME = iotUtils.SERVER_NAME
     DEV_ID = iotUtils.DEVICE_ID
 
     global TOPIC_TO_SUBSCRIBE
-    TOPIC_TO_SUBSCRIBE = "wso2/" + DEV_OWNER + "/raspberrypi/" + DEV_ID
+    # TOPIC_TO_SUBSCRIBE = SERVER_NAME + "/raspberrypi/" + DEV_ID
+    TOPIC_TO_SUBSCRIBE = SERVER_NAME + "/raspberrypi/" + DEV_ID
     global TOPIC_TO_PUBLISH
-    TOPIC_TO_PUBLISH = "wso2/" + DEV_OWNER + "/raspberrypi/" + DEV_ID + "/publisher"
+    # TOPIC_TO_PUBLISH = SERVER_NAME + "/raspberrypi/" + DEV_ID + "/publisher"
+    TOPIC_TO_PUBLISH = SERVER_NAME + "/raspberrypi/" + DEV_ID + "/temperature"
 
     print ("MQTT_LISTENER: MQTT_ENDPOINT is " + str(MQTT_ENDPOINT))
     print ("MQTT_LISTENER: MQTT_TOPIC is " + TOPIC_TO_SUBSCRIBE)