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Build clustered and scalable Java-based, real-time applications using Spring Framework, Boot, WebSocket, Cassandra, Redis and RabbitMQ. In this book, you'll tie all this together with a dive-in case study, a real-time scalable chat application under differing scenarios. Pro Java Clustering and Scalability also discusses how to horizontally scale the WebSocket chat application using a full STOMP broker such as RabbitMQ.   Although this is a programming book, it also discusses many interesting infrastructure topics and tips about continuous delivery, Docker, NoSQL (Cassandra and Redis) and other related technologies. What You Will LearnHandle clustering and scalability using various open source Java, microservices, and web services tools and technologiesUse Spring Framework, Boot, and other Spring technologiesIntegrate with Redis, RabbitMQ, Cassandra, NoSQL, and much moreTest the case study code under various scenarios and stressesWho This Book Is ForExperienced Java developers with at least some prior experience with Java, especially Spring Framework, Boot and other tools, and some web services.

Build clustered and scalable Java-based, real-time applications using Spring Framework, Boot, WebSocket, Cassandra, Redis and RabbitMQ. In this book, you'll tie all this together with a dive-in case study, a real-time scalable chat application under differing scenarios. Pro Java Clustering and Scalability also discusses how to horizontally scale the WebSocket chat application using a full STOMP broker such as RabbitMQ.   Although this is a programming book, it also discusses many interesting infrastructure topics and tips about continuous delivery, Docker, NoSQL (Cassandra and Redis) and other related technologies. What You Will LearnHandle clustering and scalability using various open source Java, microservices, and web services tools and technologiesUse Spring Framework, Boot, and other Spring technologiesIntegrate with Redis, RabbitMQ, Cassandra, NoSQL, and much moreTest the case study code under various scenarios and stressesWho This Book Is ForExperienced Java developers with at least some prior experience with Java, especially Spring Framework, Boot and other tools, and some web services.

Get ready in seconds with Creative Chat USB, a dedicated USB-C on-ear headset for calls. It works with various platforms ranging from PC, Mac, to gaming consoles, and is compatible with most of the popular conference apps like Zoom and Microsoft Teams. From webinar presentations to conference calls, the headset delivers high-definition digital audio, as well as a noise-cancelling condenser microphone with the ability to effectively prioritize voice pickup over background noises. When you need to go hands-free during the call, SmartComms Kit's auto mute and two-way noise cancellation features double up as nifty tools while you navigate through your business pitch. Focus on what matters and enjoy the added convenience for any online chat with Creative Chat USB's simple plug-and play interface, accessible swivel-to-mute microphone, and a built-in remote control.

Paperback. DESCRIPTION JavaScript on the server? You bet! Node.js is a JavaScript framework that can be used to create scalable, high-performance web applications. Using asynchronous I/O, the server can do more than one thing at a time, a key requirement for real-time apps like chat, games, and live statistics. Node.js in Action, Second Edition is a thoroughly-revised new edition that starts at square one and guides readers through all the features, techniques, and concepts needed to build production-quality Node applications. The book dives into the many different uses of Node: traditional web applications, real-time web applications, non-web network applications, and even desktop applications. It also covers the ongoing development of Node via io.js and the emerging ECMAScript 6 features. KEY FEATURES Simplifies web application development Teaches Node.js from the ground up Outlines valuable online resources Application examples including chat, microblogging, and more AUDIENCE Perfect for a web developer transitioning from Rails, Django, or PHP. Requires basic knowledge of JavaScript. No prior experience with Node.js needed. ABOUT THE TECHNOLOGY Node.js is a JavaScript framework that can be used to create scalable, highperformance web applications. Using asynchronous I/O, the server can do more than one thing at a time, a key requirement for real-time apps like chat, games, and live statistics. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.

Create real-time, highly interactive apps quickly with the powerful XMPP protocol XMPP is a robust protocol used for a wide range of applications, including instant messaging, multi-user chat, voice and video conferencing, collaborative spaces, real-time gaming, data synchronization, and search. This book teaches you how to harness the power of XMPP in your own apps and presents you with all the tools you need to build the next generation of apps using XMPP or add new features to your current apps. Featuring the JavaScript language throughout and making use of the jQuery library, the book contains several XMPP apps of increasing complexity that serve as ideal learning tools. Coverage Includes: Getting to Know XMPP Designing XMPP Applications Saying Hello: The First Application Exploring the XMPP Protocol: A Debugging Console Microblogging in Real Time: An Identica Client Talking with Friends: One-on-One Chat Exploring Services: Service Discovery and Browsing Group Chatting: A Multi-User Chat Client Publishing and Subscribing: A Shared Sketch Pad Introduction Writing with Friends: A Collaborative Text Editor Playing Games: Head to Head Tic-Tac-Toe Getting Attached: Bootstrapping BOSH Deploying XMPP Applications Writing Strophe Plug-ins Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.