Learning Devise for Rails
A hands-on, all-in-one guide that gives you step-by-step instructions along with code examples to implement authentication systems in your application. This book will help you to implement various schemes of authentication systems including authorization and remote authentication, using Devise. Helping you make your Rails applications more accessible and user-friendly; this book explains how to implement user sign-ins in Rails. It will also show you how to customize user authentication pages, such as sign-in, sign-up, forgot password, and account details, by making use of existing Devise views. In addition, you will learn about facilitating complex privilege rules using the CanCan gem. Finally, you will discover how to make sure your authentication codes work as expected by using integration tests. ...
A hands-on, all-in-one guide that gives you step-by-step instructions along with code examples to implement authentication systems in your application. This book will help you to implement various schemes of authentication systems including authorization and remote authentication, using Devise. Helping you make your Rails applications more accessible and user-friendly; this book explains how to implement user sign-ins in Rails. It will also show you how to customize user authentication pages, such as sign-in, sign-up, forgot password, and account details, by making use of existing Devise views. In addition, you will learn about facilitating complex privilege rules using the CanCan gem. Finally, you will discover how to make sure your authentication codes work as expected by using integration tests. ...
The Problem with Native JavaScript APIs
Many features inspired by popular JavaScript libraries are now available as native JavaScript APIs in today's powerful browsers. While that may seem convenient given all of the JavaScript you need to write, relying on these APIs will only make code maintenance more difficult in the long run. In this report, Nicholas Zakas-consultant and former front-end tech leader at Yahoo! - provides a case study to show how different browsers can develop native APIs for the same specification and still end up with different interpretations. You'll discover how these APIs can tie your code to specific browsers, forcing you to upgrade application logic whenever new browsers and new browser versions are released. ...
Many features inspired by popular JavaScript libraries are now available as native JavaScript APIs in today's powerful browsers. While that may seem convenient given all of the JavaScript you need to write, relying on these APIs will only make code maintenance more difficult in the long run. In this report, Nicholas Zakas-consultant and former front-end tech leader at Yahoo! - provides a case study to show how different browsers can develop native APIs for the same specification and still end up with different interpretations. You'll discover how these APIs can tie your code to specific browsers, forcing you to upgrade application logic whenever new browsers and new browser versions are released. ...
Effective Monitoring and Alerting
With this practical book, you'll discover how to catch complications in your distributed system before they develop into costly problems. Based on his extensive experience in systems ops at large technology companies, author Slawek Ligus describes an effective data-driven approach for monitoring and alerting that enables you to maintain high availability and deliver a high quality of service. Learn methods for measuring state changes and data flow in your system, and set up alerts to help you recover quickly from problems when they do arise. If you're a system operator waging the daily battle to provide the best performance at the lowest cost, this book is for you. ...
With this practical book, you'll discover how to catch complications in your distributed system before they develop into costly problems. Based on his extensive experience in systems ops at large technology companies, author Slawek Ligus describes an effective data-driven approach for monitoring and alerting that enables you to maintain high availability and deliver a high quality of service. Learn methods for measuring state changes and data flow in your system, and set up alerts to help you recover quickly from problems when they do arise. If you're a system operator waging the daily battle to provide the best performance at the lowest cost, this book is for you. ...
iPhone: The Missing Manual, 7th Edition
In iOS 7, Apple gave the iPhone the most radical makeover in its history. The new software is powerful, sleek, and a perfect companion to the iPhone 5s and 5c—but it's wildly different. Fortunately, David Pogue is back with an expanded edition of his witty, full-color guide: the world's most popular iPhone book. The iPhone may be the world's coolest computer, but it's still a computer, with all of a computer's complexities. iPhone: The Missing Manual is a funny, gorgeously illustrated guide to the tips, shortcuts, and workarounds that will turn you, too, into an iPhone addict. ...
In iOS 7, Apple gave the iPhone the most radical makeover in its history. The new software is powerful, sleek, and a perfect companion to the iPhone 5s and 5c—but it's wildly different. Fortunately, David Pogue is back with an expanded edition of his witty, full-color guide: the world's most popular iPhone book. The iPhone may be the world's coolest computer, but it's still a computer, with all of a computer's complexities. iPhone: The Missing Manual is a funny, gorgeously illustrated guide to the tips, shortcuts, and workarounds that will turn you, too, into an iPhone addict. ...
HTML5: The Missing Manual, 2nd Edition
HTML5 is more than a markup language - it's a collection of several independent web standards. Fortunately, this expanded guide covers everything you need in one convenient place. With step-by-step tutorials and real-world examples, HTML5: The Missing Manual shows you how to build web apps that include video tools, dynamic graphics, geolocation, offline features, and responsive layouts for mobile devices. ...
HTML5 is more than a markup language - it's a collection of several independent web standards. Fortunately, this expanded guide covers everything you need in one convenient place. With step-by-step tutorials and real-world examples, HTML5: The Missing Manual shows you how to build web apps that include video tools, dynamic graphics, geolocation, offline features, and responsive layouts for mobile devices. ...
RaphaelJS
Create beautiful, interactive images on the Web with RaphaëlJS, the JavaScript library that lets you draw Scalable Vector Graphics (SVG) right in the browser. With this concise guide, you'll quickly learn how to paint the screen with shapes and colors that you can turn into lively, animated graphics and visualizations. Author Chris Wilson shows you how to create Raphaël objects and manipulate them with animation, transformations, and other techniques, using just a few lines of code. Packed with working examples, sample code, and cool hands-on projects, RaphaëlJS is ideal for new and experienced JavaScript programmers alike. ...
Create beautiful, interactive images on the Web with RaphaëlJS, the JavaScript library that lets you draw Scalable Vector Graphics (SVG) right in the browser. With this concise guide, you'll quickly learn how to paint the screen with shapes and colors that you can turn into lively, animated graphics and visualizations. Author Chris Wilson shows you how to create Raphaël objects and manipulate them with animation, transformations, and other techniques, using just a few lines of code. Packed with working examples, sample code, and cool hands-on projects, RaphaëlJS is ideal for new and experienced JavaScript programmers alike. ...
Learning jQuery Deferreds
Orchestrating asynchronous function calls in JavaScript often leads to callback hell, but there is a reliable way to avoid this painful state of affairs. With this concise and simple guide, you'll learn how to use jQuery deferreds and promises, an elegant approach for managing asynchronous calls in both client and server applications. This book contains 18 examples that use deferreds to solve progressively challenging real-world programming problems, along with 75 stimulating puzzles (and their solutions) that will help you understand how and when to use deferreds. You'll learn new tricks in a fun way, and become immersed in the practice of event-based programming. ...
Orchestrating asynchronous function calls in JavaScript often leads to callback hell, but there is a reliable way to avoid this painful state of affairs. With this concise and simple guide, you'll learn how to use jQuery deferreds and promises, an elegant approach for managing asynchronous calls in both client and server applications. This book contains 18 examples that use deferreds to solve progressively challenging real-world programming problems, along with 75 stimulating puzzles (and their solutions) that will help you understand how and when to use deferreds. You'll learn new tricks in a fun way, and become immersed in the practice of event-based programming. ...
Instant Mock Testing with PowerMock
Writing good unit tests can be hard in situations where we have to deal with static, final, or private methods. Sometimes, even a good design is sacrificed for the sake of testability. A mocking framework's ability to create mocks for almost any scenario enables us to focus on accurately programming for a business environment. Starting with a basic example of how to create a mock and verify a method invocation Instant Testing with PowerMock then demonstrates various features of PowerMock using clear, practical, step-by-step recipes. By the end of this book, you will be able to write unit tests for almost any scenario and suppress unwanted behaviour to effectively unit test your code. ...
Writing good unit tests can be hard in situations where we have to deal with static, final, or private methods. Sometimes, even a good design is sacrificed for the sake of testability. A mocking framework's ability to create mocks for almost any scenario enables us to focus on accurately programming for a business environment. Starting with a basic example of how to create a mock and verify a method invocation Instant Testing with PowerMock then demonstrates various features of PowerMock using clear, practical, step-by-step recipes. By the end of this book, you will be able to write unit tests for almost any scenario and suppress unwanted behaviour to effectively unit test your code. ...
Open Source Identity Management Patterns and Practices Using OpenAM 10.x
OpenAM is a web-based open source application that provides authentication, authorization, entitlement and federation services. OpenAM provides core identity services to simplify the implementation of transparent single sign-on (SSO) as a security component in a network infrastructure. It also provides the foundation for integrating diverse web applications that might typically operate against a disparate set of identity repositories and that are hosted on a variety of platforms such as web application servers. Open Source Identity Management Patterns and Practices Using OpenAM 10.x is a condensed, practical guide on installing OpenAM to protect your web applications. This book will teach you how to integrate to different identity sources such as Active Directory or Facebook using two-factor authentications. ...
OpenAM is a web-based open source application that provides authentication, authorization, entitlement and federation services. OpenAM provides core identity services to simplify the implementation of transparent single sign-on (SSO) as a security component in a network infrastructure. It also provides the foundation for integrating diverse web applications that might typically operate against a disparate set of identity repositories and that are hosted on a variety of platforms such as web application servers. Open Source Identity Management Patterns and Practices Using OpenAM 10.x is a condensed, practical guide on installing OpenAM to protect your web applications. This book will teach you how to integrate to different identity sources such as Active Directory or Facebook using two-factor authentications. ...
Microsoft SQL Server 2012 with Hadoop
With the explosion of data, the open source Apache Hadoop ecosystem is gaining traction, thanks to its huge ecosystem that has arisen around the core functionalities of its distributed file system (HDFS) and Map Reduce. As of today, being able to have SQL Server talking to Hadoop has become increasingly important because the two are indeed complementary. While petabytes of unstructured data can be stored in Hadoop taking hours to be queried, terabytes of structured data can be stored in SQL Server 2012 and queried in seconds. This leads to the need to transfer and integrate data between Hadoop and SQL Server. ...
With the explosion of data, the open source Apache Hadoop ecosystem is gaining traction, thanks to its huge ecosystem that has arisen around the core functionalities of its distributed file system (HDFS) and Map Reduce. As of today, being able to have SQL Server talking to Hadoop has become increasingly important because the two are indeed complementary. While petabytes of unstructured data can be stored in Hadoop taking hours to be queried, terabytes of structured data can be stored in SQL Server 2012 and queried in seconds. This leads to the need to transfer and integrate data between Hadoop and SQL Server. ...