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Developing OpenCart Themes

In this article by Rupak Nepali , author of the book OpenCart Theme and Module Development , we learn about the basic features of OpenCart and its functionalities. Similarly, you will learn about global methods used in OpenCart.

Building Your First BPM Application

In this article by Simone Fiorini and Arun V Gopalakrishnan , authors of the book Mastering jBPM6 , we will build our first BPM application by using the jBPM tool stack. This article will guide you through the following topics: Installing the jBPM tool stack Hacking the default installation configurations Modeling and deploying a jBPM project Embedding jBPM inside a standalone Java project This article gives you the hands-on flexibility of the jBPM tool stack and provides information on hacking the configuration and playing around.

AWS Global Infrastructure

In this article by Uchit Vyas , who is the author of the Mastering AWS Development book, we will see how to use AWS services in detail. It is important to have a choice of placing applications as close as possible to your users or customers, in order to ensure the lowest possible latency and best user experience while deploying them. AWS offers a choice of nine regions located all over the world (for example, East Coast of the United States, West Coast of the United States, Europe, Tokyo, Singapore, Sydney, and Brazil), 26 redundant Availability Zones, and 53 Amazon CloudFront points of presence.

Getting the current weather forecast

In this article by Marco Schwartz , author of the book  Intel Galileo Blueprints , we will configure is a web API that returns weather forecasts of your exact location, and it updates them by the minute. The API has stunning maps, weather animations, temperature unit options, forecast lines, and more.

Test-driven API Development with Django REST Framework

In this article by Ray Rischpater , author of the book JavaScript JSON Cookbook , we show you how you can use strong typing in your applications with JSON using C#, Java, and TypeScript. You'll find the following recipes: How to deserialize an object using Json.NET How to handle date and time objects using Json.NET How to deserialize an object using gson for Java How to use TypeScript with Node.js How to annotate simple types using TypeScript How to declare interfaces using TypeScript How to declare classes with interfaces using TypeScript Using json2ts to generate TypeScript interfaces from your JSON

Querying and Filtering Data

In this article by Edwood Ng and Vineeth Mohan , authors of the book  Lucene 4 Cookbook , we will cover the following recipes: Performing advanced filtering Creating a custom filter Searching with QueryParser TermQuery and TermRangeQuery BooleanQuery PrefixQuery and WildcardQuery PhraseQuery and MultiPhraseQuery FuzzyQuery

Introduction to ggplot2 and the plotting environments in R

In this article by Donato Teutonico , author of the book  ggplot2 Essentials , we are going to explore different plotting environments in R and subsequently learn about the package, ggplot2 . R provides a complete series of options available for realizing graphics, which make this software quite advanced concerning data visualization. The core of the graphics visualization in R is within the package grDevices , which provides the basic structure of data plotting, as for instance the colors and fonts used in the plots. Such graphic engine was then used as starting point in the development of more advanced and sophisticated packages for data visualization; the most commonly used being graphics and grid .

Entering People Information

In this article by Pravin Ingawale , author of the book Oracle E-Business Suite R12.x HRMS – A Functionality Guide , will learn about entering a person's information in Oracle HRMS. We will understand the hiring process in Oracle. This, actually, is part of the Oracle I-recruitment module in Oracle apps. Then we will see how to create an employee in Core HR. Then, we will learn the concept of person types and defining person types. We will also learn about entering information for an employee, including additional information. Let's see how to create an employee in core HR.

Animation Fundamentals

In this article by Alan Thorn , author of the book, Unity Animation Essentials , you learn the fundamentals of animation. The importance of animation cannot be understated. Without animation, everything in-game would be statuesque, lifeless and perhaps boring. This holds true for nearly everything in games: doors must open, characters must move, foliage should sway with the wind, sparkles and particles should explode and shine, and so on. Consequently, learning animation and how to animate properly will unquestionably empower you as a developer, no matter what your career plans are. As a subject, animation creeps unavoidably into most game fields, and it's a critical concern for all members of a team—obviously for artists and animators, but also for programmers, sound designers, and level designers. The aim is to quickly and effectively introduce the fundamental concepts and practices surrounding animation in real-time games, specifically animation in Unity. You will be capable of making effective animations that express your artistic vision, as well as gaining an understanding of how and where you can expand your knowledge to the next level. But to reach that stage we'll begin, with the most basic concepts of animation—the groundwork for any understanding of animation.

An Introduction to Reactive Programming

In this article written by Nickolay Tsvetinov , author of the book  Learning Reactive Programming with Java 8 , this article will present RxJava ( ), an open source Java implementation of the reactive programming paradigm. Writing code using RxJava requires a different kind of thinking, but it will give you the power to create complex logic using simple pieces of well-structured code. In this article, we will cover: What reactive programming is Reasons to learn and use this style of programming Setting up RxJava and comparing it with familiar patterns and structures A simple example with RxJava

SQL Injection

In this article by Cameron Buchanan , Terry Ip , Andrew Mabbitt , Benjamin May , and Dave Mound authors of the book Python Web Penetration Testing Cookbook , we're going to create scripts that encode attack strings, perform attacks, and time normal actions to normalize attack times.

Securing Your Network using firewalld

In this article by Andrew Mallett , author of the book Learning RHEL Networking , we see on how to secure our network using the firewall daemon , that is, firewalld . The default user interface for netfilter , the kernel-based firewall, on RHEL7 is firewalld . Administrators now have a choice to use firewalld or iptables to manage firewalls. Underlying either process, we can still implement the kernel-based netfilter firewall. The frontend command to this new interface is firewall-cmd . The main benefit this offers is the ability to refresh the netfilter setting when the firewall is running. This is not possible with the iptables interface; additionally, we are able to use zone management. This enables us to have different firewall configurations, which depends on the network we are connected to. In this article, we will be cover the following topics: The firewall status Routing The zone management The source management Firewall rules using services Firewall rules using ports Masquerading and the network address translation Using rich rules Implementing direct rules Reverting to iptables

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