By Jose Valim
Rails is without doubt one of the such a lot extensible frameworks in the market. This pioneering publication deep-dives into the Rails plugin APIs and exhibits you, the intermediate Rails developer, easy methods to use them to jot down larger internet functions and make your daily paintings with Rails extra productive.
Rails center developer José Valim courses you thru 8 diverse tutorials, every one utilizing test-driven improvement to construct a brand new Rails plugin or software that solves universal issues of those APIs. You’ll learn the way the Rails rendering stack works and customise it to learn templates from the database when you notice the right way to mimic energetic list habit, corresponding to validations, in the other item. You’ll learn the way Rails integrates with Rack, the several how you can circulation facts out of your internet software, and the way to combine Rails engines and Sinatra purposes into your Rails apps, so that you can pick out the main acceptable software for the activity. additionally, you’ll enhance your productiveness through customizing turbines and responders.
This ebook can assist you already know Rails’ internal workings, together with turbines, template handlers, internationalization, routing, and responders. With the data you’ll achieve, you’ll create well-tested, modular, and powerful ideas to your subsequent project.
By Lorenzo Bettini
Learn find out how to enforce a DSL with Xtext and Xtend utilizing easy-to-understand examples and most sensible practices
About This Book
- Leverage the most recent good points of Xtext and Xtend to advance a domain-specific language.
- Integrate Xtext with well known 3rd celebration IDEs and get the easiest out of either worlds.
- Discover easy methods to attempt a DSL implementation and the way to customise runtime and IDE features of the DSL
Who This ebook Is For
This e-book is focused at programmers and builders who are looking to create a domain-specific language with Xtext. they need to have a uncomplicated familiarity with Eclipse and its performance. prior event with compiler implementation may be invaluable yet isn't invaluable for the reason that this e-book will clarify all of the improvement phases of a DSL.
What you'll Learn
- Write Xtext grammar for a DSL;
- Use Xtend in its place to Java to write down cleanser, easier-to-read, and extra maintainable code;
- Build your Xtext DSLs simply with Maven/Tycho and Gradle;
- Write a code generator and an interpreter for a DSL;
- Explore the Xtext scoping mechanism for image resolution;
- Test such a lot points of the DSL implementation with JUnit;
- Understand most sensible practices in DSL implementations with Xtext and Xtend;
- Develop your Xtext DSLs utilizing non-stop Integration mechanisms;
- Use an Xtext editor in an internet application
Xtext is an open resource Eclipse framework for enforcing domain-specific languages including IDE functionalities. It enables you to enforce languages relatively speedy; so much of all, it covers all points of a whole language infrastructure, together with the parser, code generator, interpreter, and more.
This publication will help you enforce area particular Languages (DSL) successfully, including their IDE tooling, with Xtext and Xtend. starting with short insurance of Xtext beneficial properties inquisitive about DSL implementation, together with integration in an IDE, the ebook will then introduce you to Xtend as this language might be utilized in all of the examples during the publication. you'll then discover the common programming improvement workflow with Xtext after we regulate the grammar of the DSL.
Further, the Xtend programming language (a fully-featured Java-like language tightly built-in with Java) might be brought. We then clarify the most techniques of Xtext, similar to validation, code iteration, and customizations of runtime and UI elements. you could have realized tips on how to try a DSL applied in Xtext with JUnit and should development to complex recommendations similar to variety checking and scoping. you are going to then combine the common non-stop Integration structures inbuilt to Xtext DSLs and get yourself up to speed with Xbase. by means of the tip of the publication, you'll manually preserve the EMF version for an Xtext DSL and may see how an Xtext DSL is additionally utilized in IntelliJ.
Style and approach
A step-by step-tutorial with illustrative examples that might allow you to grasp utilizing Xtext and enforcing DSLs with its customized language, Xtend.
By David Clinton
Whether you have made up our minds to earn the Linux specialist Institute's Server specialist certification otherwise you easily are looking to research extra approximately Linux management, this e-book is a brilliant selection. straight away, Linux management talents are starting doorways to a couple of the most well liked task markets. And with the continuing explosive development of the cloud computing international - the majority of that is being outfitted with Linux - the scope of the possibilities will merely bring up. even if you find yourself taking the examination, in case you have the capacity to examine this fabric, you will have performed your self a true favor.
- Basic Linux method management and package deal management
- Device and machine management
- Bash scripting
- Networking fundamentals
- Security administration
By Mukund Chaudhary,Abhishek Chopra
Apply most sensible practices and confirmed how to ascertain a winning CMMi implementation. This useful publication exhibits you which of them implementation hurdles to prevent and which CMMi top practices to use on your paintings parts. you are going to event how effortless the CMMi perform description is and the way quick and successfully it may be applied into your paintings processes.
CMMi is a well-liked software program procedure development version built by way of the united states division of Defence software program Engineering Institute (Carnegie Mellon University). This version is broadly utilized by software program execs and enterprises all over the world. CMMI for improvement: Implementation advisor is a step-by-step advisor to alter the way in which humans interpret and enforce CMMi of their organizations.
- Use itDetect to rectify universal error
- Define your approaches utilizing CMMi
- Collect development data
- Prepare your paintings sector for CMMi appraisal
By Sander van Vugt
Pro Linux excessive Availability Clustering teaches you the way to enforce this basic Linux add-on into your small business. Linux excessive Availability Clustering is required to make sure the provision of venture serious assets. The procedure is utilized a growing number of in company datacenters worldwide. whereas plenty of documentation in regards to the topic is accessible on the web, it's not consistently effortless to construct a true resolution in line with that scattered info, that's frequently orientated in the direction of particular projects in basic terms. Pro Linux excessive Availability Clustering explains crucial high-availability clustering parts on all Linux systems, supplying you with the perception to construct strategies for any particular case needed.
In this e-book 4 universal situations can be explained:
- Configuring Apache for top availability
- Creating an Open resource SAN in response to DRBD, iSCSI and HA clustering
- Setting up a load-balanced net server cluster with a back-end, highly-available database
- Setting up a KVM virtualization platform with high-availability safeguard for a digital machine.
With the information you will achieve from those real-world purposes, you may successfully practice Linux HA on your paintings state of affairs with self assurance.
Author Sander Van Vugt teaches Linux high-availability clustering on education classes, makes use of it in his daily paintings, and now brings this information to you in a single position, with transparent examples and situations. Make the simplest begin with HA clustering with Pro Linux excessive Availability Clustering at your side.
What youll learn
- Design Linux excessive availability clusters
- Set up an atmosphere to guard undertaking serious applications
- Connecting servers in a redundant strategy to the SAN
- Create an inexpensive SAN in keeping with open resource software
- Set up clusters for cover of Oracle and SAP workloads
- Write your personal cluster source script
- Create an open resource SAN
- Create a loose hypervisor utilizing KVM because the virtualization platform
- Set up a flexible, fault-tolerant, high-performance net shop
Who this ebook is for
This booklet is for technical expert Linux approach directors that are looking to learn the way they could increase program availability through the use of Linux excessive Availability clusters.
By Balaswamy Vaddeman
You'll become aware of subject matters resembling MapReduce and why it can't meet each company want; the positive aspects of Pig Latin resembling information kinds for every load, shop, joins, teams, and ordering; how Pig workflows should be created; filing Pig jobs utilizing Hue; and dealing with Oozie. you will additionally see the way to expand the framework by means of writing UDFs and customized load, shop, and clear out features. ultimately you are going to conceal diverse optimization strategies comparable to amassing information a couple of Pig script, becoming a member of suggestions, parallelism, and the function of information codecs in reliable performance.
By Andrea Dalle Vacche,Stefano Kewan Lee
Monitoring structures are an important a part of any IT surroundings. they are often super beneficial not just to spot particular difficulties, but additionally to degree your system’s functionality and locate the way to enhance it. although, they are often deceptive and complicated if now not appropriately configured and controlled. fake alarms and lacking information can undermine a tracking system's contribution to a fit IT division. Zabbix 2.2 lets you customise and enforce principles by way of extending, including, or customizing performance, giving an extra price to that technology.
This accomplished advisor may help you to make either strategic and useful judgements in regards to the Zabbix tracking procedure, on the way to suit your setting and tracking wishes like a glove. From identifying the right kind dimension and configurationto what you have to truly visual display unit, together with exporting and integrating your information with different platforms, this e-book will depart you with out doubts concerning the an important function of a good configured tracking system.
Introducing you to how to configure and select among excessive availability and dispensed Zabbix architectures in your largeenvironment, this consultant will continue to teach you ways to assemble tracking facts, visualize, and act on it. subsequent, the consultant explores how one can expand Zabbix and attach it to bother ticketing platforms or information mining strategies. additionally, you will how to decide upon the appropriate database backend, computer screen home equipment that merely speak SNMP and alertness servers that speak JMX, and arrange your charts and maps in monitors that may be visualized on gigantic displays. It exhibits you ways to leverage Zabbix's discovery services to trace your ever altering setting and construct advanced, clever alarms that will not distract you with trivial difficulties. ultimately, you'll discover ways to extend Zabbix's features via its scripting amenities, protocol and strong API.
Written as a realistic step by step educational, this e-book is stuffed with enticing examples that can assist you study in a realistic context
Who this e-book is for
If you're a procedure administrator or an IT architect and need to grasp the best way to greater combine your Zabbix install together with your surrounding surroundings, this publication is perfect for you. A easy, operating wisdom of Zabbix is believed, in order that the ebook can specialize in the way to take complete benefit of each part. The code within the later bankruptcy could be defined in its performance, yet uncomplicated programming talents are assumed as well.
By Sujoy Acharya
The ordinary existence cycle of code consists of including code, breaking an current performance, solving that and breaking a brand new quarter! This fragility will be mounted utilizing computerized assessments and try pushed Development.
TDD’s try out first strategy expedites the improvement strategy and unit checks act as safeguard nets for code refactoring and assist in conserving and lengthening the code. This makes TDD hugely worthwhile for brand new projects.
This functional, hands-on advisor offers you a few transparent, step by step routines to help you to use the genuine strength that's in the back of try pushed improvement and the Mockito framework. by utilizing this e-book, you'll achieve the data you'll want to use the Mockito framework on your project.
This publication explains the idea that of attempt pushed improvement (TDD), together with mocking and refactoring, in addition to breaking down the secret and confusion that surrounds the try first strategy of TDD. it is going to take you thru a few transparent, sensible examples that can assist you to use TDD with the Mockito framework, fast and painlessly.
You will how one can write unit checks, refactor code and take away code smells. we are going to additionally look at mock items and learn how to use Mockito framework to stub, mock, ascertain and secret agent gadgets for testability. additionally, you will discover ways to write fresh, maintainable, and extensible code utilizing layout rules and patterns.
If you must benefit from utilizing try out pushed improvement and find out about mocking frameworks, then this can be the e-book for you. you are going to examine every little thing you must understand to use try pushed improvement in a true lifestyles venture, in addition to the best way to refactor legacy code and write caliber code utilizing layout patterns.
This publication is a hands-on consultant, filled with useful examples to demonstrate the recommendations of try out pushed Development.
Who this e-book is for
If you're a developer who desires to boost software program following try pushed improvement utilizing Mockito and leveraging a variety of Mockito positive aspects, this ebook is perfect for you. You don’t desire previous wisdom of TDD, Mockito, or JUnit.
It is perfect for builders, who've a few event in Java program improvement in addition to a uncomplicated wisdom of unit checking out, however it covers the elemental basics of TDD and JUnit checking out to get you accustomed to those techniques sooner than delving into them.
By Dima Kovalenko
About This Book
- Keep up with the altering speed of your internet software by way of growing an agile attempt suite
- Save money and time through making your Selenium checks ninety nine% reliable
- Improve the soundness of your try suite and your programing abilities through following a step by step non-stop development tutorial
Who This ebook Is For
Whether you're an skilled WebDriver developer or a person who used to be newly assigned a job to create computerized exams, this e-book is for you. because the principles and ideas are defined simply, no earlier adventure in desktop coding or programming is required.
What you'll Learn
- Control Selenium WebDriver inside of any significant programing language reminiscent of Java, Ruby, Python, and .NET
- Learn how you can enforce an easy try script or a posh web page gadgets framework
- Set up each one attempt to instantly take care of AJAX and jQuery
- Remove try out instabilities through blockading third-party services
- Deal with facts uncertainties through the use of furniture, JSON APIs, and API stubbing
- Improve your try suite regularly by means of refactoring code and utilizing the DRY principle
- Stabilize your checks by utilizing styles resembling the motion Wrapper and Black gap Proxy patterns
Selenium WebDriver is a world chief in computerized net trying out. It empowers clients to accomplish advanced checking out eventualities with its uncomplicated and strong interface.
This consultant will give you the entire talents you must effectively create a useful Selenium try out suite. ranging from the very starting of the Selenium IDE, this publication will make it easier to transition right into a actual programing language similar to Ruby or Java. you are going to speedy how you can enhance your code caliber with refactoring and the talents had to plan for the long run improvement of your web site to future-proof your try out suite. With plentiful try out examples working opposed to a life-like e-commerce shop and precise step by step code assessment and motives, you can be able to try any problem internet builders may throw your way.
This publication is meant for someone who desires to create a try out suite that's effortless to keep up by way of increasing your wisdom till you are feeling actually convinced and happy with Selenium.
By Alan Trevennor
AVR is the mind that runs Arduino, yet you do not need the entire Arduino board to do enjoyable initiatives. Experimenting with AVR Microcontrollers, from Practical AVR Microcontrollers, exhibits you the way to create a spiffy set of tasks for you to construct to benefit extra approximately electronics, approximately AVR, and simply to generate new principles to your personal initiatives.
Alan Trevennor will aid you create a mystery panel undertaking, a device to force your pets loopy, a hallway lights procedure, or even a small domestic automation network.