RSS and Atom are specifications that give users the power to subscribe to information they want to receive and give content developers tools to provide continuous subscriptions to willing recipients in a spam-free setting. RSS and Atom are the technical power behind the growing millions of blogs on the Web. Blogs change the Web from a set of static pages or sites requiring programming expertise to update to an ever changing, constantly updated landscape that anyone can contribute to. RSS and Atom syndication provides users an easy way to track new information on as many Web sites as they want. This book offers you insight to understanding the issues facing the user community so you can meet users' needs by writing software and Web sites using RSS and Atom feeds. Beginning with an introduction to all the current and coming versions of RSS and Atom, you'll go step by step through the process of producing, aggregating, and storing information feeds. When you're finished, you'll be able to produce client software and Web sites that create, manipulate, aggregate, and display information feeds effectively. "This book is full of practical advice and tips for consuming, producing, and manipulating information feeds. I only wish I had a book like this when I started writing RSS Bandit." - Dare Obasanjo, RSS Bandit creator: http://www.rssbandit.org/

Perhaps the most explosive technological trend over the past two years has been blogging. As a matter of fact, it's been reported that the number of blogs during that time has grown from 100,000 to 4.8 million-with no end to this growth in sight.What's the technology that makes blogging tick? The answer is RSS--a format that allows bloggers to offer XML-based feeds of their content. It's also the same technology that's incorporated into the websites of media outlets so they can offer material (headlines, links, articles, etc.) syndicated by other sites.As the main technology behind this rapidly growing field of content syndication, RSS is constantly evolving to keep pace with worldwide demand. That's where Developing Feeds with RSS and Atom steps in. It provides bloggers, web developers, and programmers with a thorough explanation of syndication in general and the most popular technologies used to develop feeds.This book not only highlights all the new features of RSS 2.0-the most recent RSS specification-but also offers complete coverage of its close second in the XML-feed arena, Atom. The book has been exhaustively revised to explain: metadata interpretation the different forms of content syndication the increasing use of web services how to use popular RSS news aggregators on the market After an introduction that examines Internet content syndication in general (its purpose, limitations, and traditions), this step-by-step guide tackles various RSS and Atom vocabularies, as well as techniques for applying syndication to problems beyond news feeds. Most importantly, it gives you a firm handle on how to create your own feeds, and consume or combine other feeds.If you're interested in producing your own content feed, Developing Feeds with RSS and Atom is the one book you'll want in hand.

Now you can satisfy your appetite for information This book is not about the minutia of RSS and Atom programming. It's about doing cool stuff with syndication feeds-making the technology give you exactly what you want the way you want. It's about building a feed aggregator and routing feeds to your e-mail or iPod, producing and hosting feeds, filtering, sifting, and blending them, and much more. Tan-talizing loose ends beg you to create more hacks the author hasn't thought up yet. Because if you can't have fun with the technology, what's the point? A sampler platter of things you'll learn to do Build a simple feed aggregator Add feeds to your buddy list Tune into rich media feeds with BitTorrent Monitor system logs and events with feeds Scrape feeds from old-fashioned Web sites Reroute mailing lists into your aggregator Distill popular links from blogs Republish feed headlines on your Web site Extend feeds using calendar events and microformats

A guide to the Groovy programming language covers such topics as shell scripting, dynamic programming, Grails, GDK, and XML.

Provides information on newsfeed formats and Web publishing protocols along with coverage of ways to assemble Web applications.

Summary Grails in Action, Second Edition is a comprehensive introduction to Grails 2 focused on making you super-productive fast. In this totally revised new edition, you'll master Grails 2.3 core skills as you apply TDD techniques to developing a full-scale Twitter clone. Along the way you'll learn the latest single-page web app UI techniques, work with NoSQL backends, integrate with enterprise messaging, and implement a complete RESTful API for your services. Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications. About the Technology It may be time for you to stop reconfiguring, rewriting, and recompiling your Java web apps. Grails, a Groovy-powered web framework, hides all that busy work so you can concentrate on what your applications do, not how they're built. In addition to its famously intuitive dev environment and seamless integration with Spring and Hibernate, the new Grails 2.3 adds improved REST support, better protection against attacks from the web, and better dependency resolution. About the Book Grails in Action, Second Edition is a comprehensive introduction to Grails 2. In this totally revised edition you'll master Grails as you apply TDD techniques to a full-scale example (a Twitter clone). Along the way you'll learn single-page web app techniques, work with NoSQL back ends, integrate with enterprise messaging, implement a RESTful API ... and more. No Java or Groovy knowledge is required. Some web development and OOP experience is helpful. What's Inside Covers Grails 2.3 from the ground up Agile delivery and testing using Spock How to use and manage plugins Tips and tricks from the trenches About the Authors There's no substitute for experience: Glen Smith and Peter Ledbrook have been fixtures in the Grails community, contributing code, blogging, and speaking at conferences worldwide, since Grails 0.2. Table of Contents PART 1 INTRODUCING GRAILS Grails in a hurry The Groovy essentials PART 2 CORE GRAILS Modeling the domain 63 Creating the initial UI Retrieving the data you need Controlling application flow Services and data binding Developing tasty forms, views, and layouts PART 3 EVERYDAY GRAILS Building reliable applications Using plugins: just add water Protecting your application Exposing your app to other programs Single-page web applications (and other UI stuff) Understanding Spring and transactions PART 4 ADVANCED GRAILS Understanding events, messaging, and scheduling NoSQL and Grails Beyond compile, test, run Grails in the cloud BONUS ONLINE CHAPTERS Advanced GORM kung fu Developing plugins

The rise of Ruby on Rails has signified a huge shift in how we build web applications today; it is a fantastic framework with a growing community. There is, however, space for another such framework that integrates seamlessly with Java. Thousands of companies have invested in Java, and these same companies are losing out on the benefits of a Rails–like framework. Enter Grails. Grails is not just a Rails clone. It aims to provide a Rails–like environment that is more familiar to Java developers and employs idioms that Java developers are comfortable using, making the adjustment in mentality to a dynamic framework less of a jump. The concepts within Grails, like interceptors, tag libs, and Groovy Server Pages (GSP), make those in the Java community feel right at home. Grails' foundation is on solid open source technologies such as Spring, Hibernate, and SiteMesh, which gives it even more potential in the Java space: Spring provides powerful inversion of control and MVC, Hibernate brings a stable, mature object relational mapping technology with the ability to integrate with legacy systems, and SiteMesh handles flexible layout control and page decoration. Grails complements these with additional features that take advantage of the coding–by–convention paradigm such as dynamic tag libraries, Grails object relational mapping, Groovy Server Pages, and scaffolding. Graeme Rocher, Grails lead and founder, and Jeff Brown bring you completely up–to–date with their authoritative and fully comprehensive guide to the Grails framework. You'll get to know all the core features, services, and Grails extensions via plug–ins, and understand the roles that Groovy and Grails are playing in the changing Web.