Luc Bors Weblog

In my previous post I described how to use node-red to interact with twitter. That post was based on some initial research which was eventually used as a basis for the post that you are reading now. For one of our projects I had to setup an Oracle Chatbot on twitter. Now as you might know, Oracle Digital Assistant supports many channels, such as web, facebook, android and iOS, but twitter is not supported. The way to expose a chatbot to a 'not supported' channel is to use a channel of the webhook type. In this post I describe how I created a working prototype that exposes an Oracle Digital Assistant to Twitter. The things you need for this are the following: Twitter application which is needed to use the Twitter API's to interact with twitter A nodejs application where you code the functionality A Digital Assistant instance to hold the Bot Installation of ngrok to test from your local machine Create a twitter application If you have an approved twitter develop...

Recently I have been working on a customer chatbot project. Although it was not a direct requirement, I decided to look into embedding the chatbot in a web application too. You will never know what the future brings. It struck me that is I could not find any blogposts related to this topic. The only thing is a youtube video by Oracle PM (see resources below) describing how to do this. There can be several reasons as why this has not been blogged about: Nobody is doing chatbot integration in a Javascript UI yet. Oracle Documentation is clear enough. It is very simple so why bother blogging. Anyway, despite of any of these reasons, I decide to write a post on this topic, so that at least I can refer to this myself whenever I need it. So here it is: How to integrate a chatbot in your JET application. This post does not go into the details of creating a chatbot, it just explains how to integrate one in you JET application (or any other Javascript application fo that matter). Wha...

In September (15th and 16th) we will be organising an IoT Hackathon together with Oracle. I preparation of that I will write several post here concerning IoT. This post gives you an Overview of Grove Pi sensors and some of the fun things that you can do with it. See also this two minute tech tip that is an intro to this post. The GrovePi+ Starterkit Connecting sensors to the Internet of Things (IOT) is really easy! No need for soldering or breadboards: plug in your Grove sensors and start programming directly. GrovePi+ is an easy-to-use and modular system for hardware hacking with the Raspberry Pi and the Internet of Things. Here is what the kit contains: The GrovePi+ Board 12 Grove sensors Grove cables for connecting the sensors to the GrovePi+ board. The following sensors and lights are in the kit: Grove – Sound Sensor Grove – Temperature and Humidity Grove – Light Sensors Grove – Relay Grove – Button Grove – Ultrasonic Ranger Grove – Rotary Angle Sensor Grove – ...

In September (15th and 16th) we will be organising an IoT Hackathon together with Oracle. I will write several post here concerning IoT, starting with this one where I tell you how to do the default setup of your Raspberry PI. See also this two minute tech tip that is an intro to this post. For configuring your raspberry Pi there are several options. I prefer to use a keyboard, monitor and mouse so I can actually see what I am doing. The Pi has several USB ports and also an HDMI port. So if you have a monitor, keyboard and a mouse available, you can plug those into your Raspberry Pi and you are all set. Connect to the power and the Pi will boot into an initial setup screen that allows you to select your preferred OS. That is of course only if you inserted an SD card in the Pi that contains the various available OS's. Select your preferred OS and click install so that the Operating System gets installed. After a short while, the installation is complete. Once the install h...

Sunday symposium took of at 8:30. Unfortunately i had to skip the first two session due to some work That had to be done first. The first session I really got to attend was Brian Fry's session on Oracles Developer Cloud Service. JDeveloper, Eclipse or Netbeans was the way you would work with Oracle Developer Cloud. Now there is a new feature (not publicly available) that is a browser based IDE. It is a full development environment. It is a very flexible, responsive and quick UI. it has an integrated out of the box GIT repository. It can be used for both JavaScript, and Java EE and java SE. Oracle uses the DevCS to build the DevCS with over 145 developers using 27 GIT repositories. So oracle now is drinking their own champagne, which sounds much better then eating their own dog food by the way.        The demo was nice and showed the power of the Javascript editor and the integrated support with GIT. also the Java editor looked very promising. We will have ...

Last week I was asked this question : "Can we print directly from within our ADF Application, without invoking the printer dialog ?" I wasn't sure but after some investigation the answer was clear. Yes you can ! Here is how... I decided to create a print start up form where I can select printers and print the document. Most of the functionality needed is provided by the Java Print Service API. Selecting available printers I start with a way to show all printers available to the session. For that I simply use the PrinterServiceLookup. PrintService[] printers = PrintServiceLookup.lookupPrintServices(null, null); The result I can now use to create an Array of SelectItems in order to make the list available in the application. 1: public SelectItem[] getAllPrinters() { 2: if (allPrinters == null) { 3: PrintService[] printers = 4: PrintServiceLookup.lookupPrintServices(null, null); 5: allPrinters = new SelectItem[printers.length]; 6: for (int i = 0; i ...