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Lua Workshop 2016: Peer to Peer publish/subscribe using Lua and DDS - Gianpiero Napoli (RTI)

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Published on Dec 3, 2016

During this talk we will explore how in RTI we used Lua to simply Publish Subscribe communication in a distributed system. Lua was first used to add scripting capability to one of our Rapid Prototyping tool, and then elevated to first class citizen scripting language to create complex pub/sub distributed systems based on the OMG standard Data Distribution Service (DDS) Data Distribution Service (DDS) is the platform for the Industrial Internet of Things (IIoT). It offers real-time, peer-to-peer, standard, data-centric publish subscribe. With RTI DDSConnector you can now exploit the power of DDS within Lua without having to deal with complex APIs. Define your data types, your data writers, data readers and desired quality of service in a XML file and simply load it in your Lua application. Your applications will effortlessly become participants in a logically shared, but decentralized peer-to-peer data-space with other applications over a LAN or WAN. DDS is an open real-time connectivity framework standard that has proven itself in industrial systems for building highly reliable systems that can be trusted without a single point of failure, and as a peer-to-peer (P2P) architecture with no message servers or brokers. If you need a connectivity framework that is fast, that can scale to hundreds of nodes, that is monitorable and robust, and if your system has to last, adapt to new technologies, work in heterogeneous environments or connect to legacy systems, DDS is the answer. If you want to do all that in Lua, DDSConnector is your answer. We will cover the basics of DDS with some practical examples and then dive in a few demos on how to use DDS in Lua through RTI DDS Prototyper.

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