Deployment with Docker

cd docker
docker-compose up -d

Create admin user

docker exec -ti docker_wirecloud_1 manage.py createsuperuser

MACS Catalog

• https://macs.opplafy.eu

NGSI Browser NGSI Server: http://context.demos.opplafy.eu:1026

Service: berlin19 type: Vehicle attrs: location, speed, batteryLevel

Open Layers Map Location: 13.392478, 52.518373 Zoom: 14

NGSI Source NGSI Server: http://context.demos.opplafy.eu:1026 Proxy: https://ngsiproxy.opplafy.eu

Service: berlin19 type: Vehicle attrs: location, speed, batteryLevel

NGSI Entity 2 POI icon: http://j.mp/poi_png

NGSI Datamodel 2 POI

Value Filter Property: data.batteryLevel null: no

Gauge Chart Generator Min: 0 Max: 100

Value List Filter Property: data.batteryLevel null: no

Calculate Tendency Pie Chart Generator

QuantumLeap Source ID: urn:Vehicle:moto1 Server: http://sthdata.demos.opplafy.eu:8668/

NGSI Server: http://context.demos.opplafy.eu:1026 Proxy: https://ngsiproxy.opplafy.eu

Service: berlin19 type: Vehicle attrs: location, speed, batteryLevel

QuantumLeap 2 Echart Chart1 Title: Battery Chart1 Attributes: batteryLevel

Chart2 Title: Speed Chart2 Attribute: speed

Echart

Install grunt init

npm install -g grunt-init
git clone https://github.com/Wirecloud/grunt-init-wirecloud-widget.git ~/.grunt-init/wirecloud-widget
git clone https://github.com/Wirecloud/grunt-init-wirecloud-operator.git ~/.grunt-init/wirecloud-operator

Create a Widget

grunt-init wirecloud-widget

Create a operator

grunt-init wirecloud-operator

Gravatars:

• http://gravatar.com/mjimenezganan
• http://gravatar.com/fdelavegaca3797ed73

MashupPlatform Reference

Install dependencies

cd chat-widget npm install

1. Add Gravatar preference:

2. Read gravatar preference (getInfoFromGravatar) var gravatarURL = MashupPlatform.prefs.get('gravatar');

3. Subscribe preference changes (init)

   MashupPlatform.prefs.registerCallback(function(new_values) { if ('gravatar' in new_values) { getInfoFromGravatar(); } });

4. Make HTTP Request

   var url = gravatarURL + '.json'; MashupPlatform.http.makeRequest(url, { method: 'GET', onSuccess: function(response) { var user_data; user_data = JSON.parse(response.responseText); if (user_data.error) { onError(); } else { userData = user_data; printUserData(user_data); } }, onError: function() { onError(); } });

5. Configure Wiring

6. Send Message on handler (sendButtonHandler)

   var msgToSend = {}; msgToSend.msg = document.getElementById("input").value; if (msgToSend.msg !== "" && userData != null) { msgToSend.hash= userData.entry[0].hash; MashupPlatform.wiring.pushEvent('sendMsg', msgToSend); }

7. Init wiring callback (init)

   MashupPlatform.wiring.registerCallback('receiveMsg', processMsg);

8. Process incomming messages

   function processMsg(receivedMsg) { if (userData != null && receivedMsg.hash !== userData.entry[0].hash) { createMsgDiv(receivedMsg.msg, 'http://www.gravatar.com/avatar/' + receivedMsg.hash, true, receivedMsg.id); } else { // My message, echo, mark as sent createMsgDiv(receivedMsg.msg,'http://www.gravatar.com/avatar/' + receivedMsg.hash, false, receivedMsg.id); document.getElementById(receivedMsg.id).parentElement.className = 'sent'; } }

http://conwetlab.github.io/ngsijs/stable/NGSI.html

Install dependencies

cd chat-operator
npm install

1. Add NGSI Properties config

2. Add Wiring

3. Add NGSI Feature

   /* global NGSI */

4. Create NGSI Connection (susbcribeChat)

   ngsi_connection = new NGSI.Connection(MashupPlatform.prefs.get('ngsi_server'), { ngsi_proxy_url: MashupPlatform.prefs.get('ngsi_proxy'), request_headers: { "FIWARE-Service": chatroom } });

5. Publish messages as NGSI entity

   function publishMsg(event_data) { var now = new Date(); ngsi_connection.v2.createEntity({ "id": "Chat-" + now.getTime() + event_data.hash, "type": "ChatMessage", "hash": event_data.hash, "message": event_data.msg }, {keyValues: true}).then( (response) => { // Entity created successfully // response.correlator transaction id associated with the server response }, (error) => { // Error creating the entity // If the error was reported by Orion, error.correlator will be // filled with the associated transaction id } ); }

6. Subscribe to messages in context broker (subscribeMessage)

   ngsi_connection.v2.createSubscription({ "description": "One subscription to rule them all", "subject": { "entities": [ { "idPattern": ".*", "type": "ChatMessage" } ] }, "notification": { callback: function (notification, headers, error) { for (let i = 0; i < notification.data.length; i++) { let msg = { hash: notification.data[i].hash.value, msg: notification.data[i].message.value } MashupPlatform.wiring.pushEvent('toBeReceived', msg); }
   } } }).then( (response) => { // Subscription created successfully // response.correlator transaction id associated with the server response }, (error) => { // Error creating the subscription // If the error was reported by Orion, error.correlator will be // filled with the associated transaction id } );