Techniki programowania
Od monolitu do mikrousług. Ewolucyjne wzorce przekształcania systemów monolitycznych
Sam Newman
Mikrousługi są relatywnie świeżą koncepcją w świecie systemów IT, mimo to coraz więcej organizacji decyduje się na wdrażanie opartej na nich architektury. Uznaje się, że zapewnia ona wówczas lepszą skalowalność, łatwość łączenia poszczególnych niezależnych elementów, a przede wszystkim możliwość szybszej reakcji na zmiany i skuteczniejsze wdrażanie nowych funkcjonalności. Zanim jednak organizacja da się skusić tymi obietnicami, powinna gruntownie przeanalizować swoją sytuację i decyzję o ewentualnej migracji systemu oprzeć na racjonalnych przesłankach. Konieczne jest również opracowanie planu takiego przejścia, zwłaszcza jeśli nie można sobie pozwolić na dłuższe przestoje w działalności. To wyczerpujący poradnik dla inżynierów, którzy stoją przed wyzwaniem przekształcenia monolitycznego systemu w architekturę opartą na mikrousługach bez przerywania funkcjonowania firmy. Książka jest przeznaczona dla organizacji, które muszą płynnie zmienić istniejący system, a nie zbudować go od nowa. Zawiera wiele cennych wskazówek odnoszących się do celowości samej migracji oraz przedstawia liczne scenariusze i strategie przekształcania: od etapu planowania aż po dekompozycję aplikacji i baz danych. Znalazł się tu zestaw sprawdzonych wzorców i technik wraz z omówieniem sytuacji, w jakich można je bezpiecznie zastosować. Nie zabrakło ważnych szczegółów związanych z wzorcami refaktoryzacji architektury czy problematyki naruszeń integralności w wyniku podziału baz danych. W tej książce między innymi: podstawowe koncepcje związane z mikrousługami ocena przydatności mikrousług w konkretnych sytuacjach planowanie wdrażania architektury opartej na mikrousługach wzorce migracji, dekompozycja aplikacji i inne zagadnienia techniczne wykrywanie i rozwiązywanie problemów związanych z mikrousługami Dążysz do sukcesu? Obierz kurs na mikrousługi!
Steven Cheng
Odata (Open Data Protocol) is a Web protocol for querying and updating data that provides a way to unlock your data and free it from silos that exist in applications today. OData enables data access among a variety of applications, services, and stores by adopting existing Web technologies such as HTTP, XML, and JSON. This book deals with common OData programming cases over the Microsoft .NET Framework platform and eases the learning curve for a .NET developer to start incorporating OData in data service development.This book provides a collection of recipes that help .NET developers to get familiar with OData programming in a quick and efficient manner. The recipes cover most OData features from the former ADO.NET Data Service to the current WCF Data Service platform. In addition, all the sample cases here are based on real-world scenarios and issues that .NET developers might come across when programming with OData in application development.This book will be your handy guide with basic to advanced walkthroughs of common OData programming cases for the Microsoft .NET Framework platform. You will learn quick solutions to necessary tasks to integrate the power of OData at both server-side and client-side.This book will help you master the use of OData with .NET Framework by taking you through hands-on and practical recipes. It starts by talking about the common means for building OData services and consuming OData services in client applications. Then, some more specific topics like hosting, configuration and security are discussed. The book also covers many popular and interesting topics such as integrating OData in web applications, and developing data-driven mobile applications with OData. Moreover, you can also find quite a few recipes discussing real-world OData producers and new features in latest and future versions.Within OData Programming Cookbook for .NET Developers, all the recipes are selected based on real-world scenarios that you will commonly come across. Each recipe covers a specific topic, going from the description of the problem, through a conceptual solution, to a solution containing sample code. By following these recipes, you can acquire how to program with OData in a simple, effective, and easy manner.
Daniel Sauble
When building mobile apps, it’s easy to forget about the moments when your users lack a good Internet connection. Put your phone in airplane mode, open a few popular apps, and you’ll quickly see how they handle being offline. From Twitter to Pinterest to Apple Maps, some apps might handle being offline better—but very few do it well. A poor offline experience will result in frustrated users who will abandon your app, or worse, turn to your competitor’s appsExpert or novice, this book will teach you everything you need to know about designing and building a rigorous offline app experience. By putting the offline experience first, you’ll have a solid foundation to build upon, avoiding the unnecessary stress and frustration of trying to retrofit offline capabilities into your finished app. This basic principle, designing for the worst-case scenario, could save you countless hours of wasted effort.
Li Wenbo
Opa is a full-stack Open Source web development framework for JavaScript that lets you write secure and scalable web applications. It generates standard Node.js/MongoDB applications, natively supports HTML5 and CSS and automates many aspects of modern web application programming. It handles all aspects of web programming written in one consistent language and compiled to web standards.Opa Application Development is a practical,hands-on guide that provides you with a number of step-by-step exercises. It covers almost all aspects of developing a web application with Opa, which will help you take advantage of the real power of Opa, as well as building a secure, powerful web application rapidly.Opa Application Development dives into all concepts and components required to build a web application with Opa. The first half of this book shows you all of the basic building blocks that you will need to develop an Opa application, including the syntax of Opa, web development aspects, client and server communication and slicing, plugin, database, and so on. By the end of the book you will have yourself created a complete web application along with a game: Pacman!
Open Source Projects - Beyond Code. A blueprint for scalable and sustainable open source projects
John Mertic
Open source is ubiquitous in our society, with countless existing projects, and new ones emerging every day. It follows a scratch-your-own-itch model where contributors and maintainers drive the project forward. Through Open Source Projects - Beyond Code, you'll learn what it takes to develop a successful, scalable, and sustainable open source project. In this book, you’ll explore the full life cycle of open source projects, from inception, through launch, to maturity, and then discover how to sunset an open source project responsibly. Along the way, you’ll learn the concepts of licensing, governance, community building, ecosystem management, and growing maintainers and contributors, as well as understand how other open source projects have been successful or might have struggled in some areas. You can use this book as an end-to-end guide or reference material for the future. By the end of this book, you’ll be able to accelerate your career in open source. Your newly acquired skills will help you stay ahead of the curve even with the ever-evolving nature of technology.
Ravishekhar Banger, Koushik Bhattacharyya
Research in parallel programming has been a mainstream topic for a decade, and will continue to be so for many decades to come. Many parallel programming standards and frameworks exist, but only take into account one type of hardware architecture. Today computing platforms come with many heterogeneous devices. OpenCL provides royalty free standard to program heterogeneous hardware.This guide offers you a compact coverage of all the major topics of OpenCL programming. It explains optimization techniques and strategies in-depth, using illustrative examples and also provides case studies from diverse fields. Beginners and advanced application developers will find this book very useful.Beginning with the discussion of the OpenCL models, this book explores their architectural view, programming interfaces and primitives. It slowly demystifies the process of identifying the data and task parallelism in diverse algorithms.It presents examples from different domains to show how the problems within different domains can be solved more efficiently using OpenCL. You will learn about parallel sorting, histogram generation, JPEG compression, linear and parabolic regression and k-nearest neighborhood, a clustering algorithm in pattern recognition. Following on from this, optimization strategies are explained with matrix multiplication examples. You will also learn how to do an interoperation of OpenGL and OpenCL.OpenCL Programming by Example explains OpenCL in the simplest possible language, which beginners will find it easy to understand. Developers and programmers from different domains who want to achieve acceleration for their applications will find this book very useful.
OpenCV: Computer Vision Projects with Python. Develop computer vision applications with OpenCV
Prateek Joshi, Michael Beyeler, Joseph Howse
OpenCV is a state-of-art computer vision library that allows a great variety of image and video processing operations. OpenCV for Python enables us to run computer vision algorithms in real time.This learning path proposes to teach the following topics. First, we will learn how to get started with OpenCV and OpenCV3’s Python API, and develop a computer vision application that tracks body parts. Then, we will build amazing intermediate-level computer vision applications such as making an object disappear from an image, identifying different shapes, reconstructing a 3D map from images , and building an augmented reality application, Finally, we’ll move to more advanced projects such as hand gesture recognition, tracking visually salient objects, as well as recognizing traffic signs and emotions on faces using support vector machines and multi-layer perceptrons respectively. This Learning Path combines some of the best that Packt has to offer in one complete, curated package. It includes content from the following Packt products:• OpenCV Computer Vision with Python by Joseph Howse • OpenCV with Python By Example by Prateek Joshi• OpenCV with Python Blueprints by Michael Beyeler
William Lo, Muhammad Mobeen Movania, Raymond Chun...
OpenGL is a fully functional, cross-platform API widely adopted across the industry for 2D and 3D graphics development. It is mainly used for game development and applications, but is equally popular in a vast variety of additional sectors. This practical course will help you gain proficiency with OpenGL and build compelling graphics for your games and applications. OpenGL Development Cookbook – This is your go-to guide to learn graphical programming techniques and implement 3D animations with OpenGL. This straight-talking Cookbook is perfect for intermediate C++ programmers who want to exploit the full potential of OpenGL. Full of practical techniques for implementing amazing computer graphics and visualizations using OpenGL. OpenGL 4.0 Shading Language Cookbook, Second Edition – With Version 4, the language has been further refined to provide programmers with greater power and flexibility, with new stages such as tessellation and compute. OpenGL Shading Language 4 Cookbook is a practical guide that takes you from the fundamentals of programming with modern GLSL and OpenGL, through to advanced techniques.OpenGL Data Visualization Cookbook - This easy-to-follow, comprehensive Cookbook shows readers how to create a variety of real-time, interactive data visualization tools. Each topic is explained in a step-by-step format. A range of hot topics is included, including stereoscopic 3D rendering and data visualization on mobile/wearable platforms. By the end of this guide, you will be equipped with the essential skills to develop a wide range of impressive OpenGL-based applications for your unique data visualization needs.This Learning Path combines some of the best that Packt has to offer in one complete, curated package. It includes content from the following Packt products, OpenGL Development Cookbook by Muhammad Mobeen Movania, OpenGL 4.0 Shading Language Cookbook, Second Edition by David Wolff, OpenGL Data Visualization Cookbook by Raymond C. H. Lo, William C. Y. Lo
Stephen Madsen, Robert Madsen
OpenGL is one of the most popular rendering SDKs used to develop games. OpenGL has been used to create everything from 3D masterpieces running on desktop computers to 2D puzzles running on mobile devices. You will learn to apply both 2D and 3D technologies to bring your game idea to life. There is a lot more to making a game than just drawing pictures and that is where this book is unique! It provides a complete tutorial on designing and coding games from the setup of the development environment to final credits screen, through the creation of a 2D and 3D game.The book starts off by showing you how to set up a development environment using Visual Studio, and create a code framework for your game. It then walks you through creation of two games–a 2D platform game called Roboracer 2D and a 3D first-person space shooter game–using OpenGL to render both 2D and 3D graphics using a 2D coordinate system. You'll create sprite classes, render sprites and animation, and navigate and control the characters. You will also learn how to implement input, use audio, and code basic collision and physics systems. From setting up the development environment to creating the final credits screen, the book will take you through the complete journey of creating a game engine that you can extend to create your own games.
Peter J. Langley, Antonio Santiago
OpenLayers 3 is one of the most important and complete open source JavaScript mapping libraries today. Throughout this book, you will go through recipes that expose various features of OpenLayers 3, allowing you to gain an insight into building complex GIS web applications.You will get to grips with the basics of creating a map with common functionality and quickly advance to more complicated solutions that address modern challenges. You will explore into maps, raster and vector layers, and styling in depth. This book also includes problem solving and how-to recipes for the most common and important tasks.
OpenStack Trove Essentials. Build your own cloud based Database as a Service using OpenStack Trove
Alok Shrivastwa, Sunil Sarat, Doug Shelley, Amrith...
OpenStack has become an extremely popular solution to build public and private clouds with. Database as a Service (DBaaS) enables the delivery of more agile database services at lower costs. Some other benefits of DBaaS are secure database deployments and compliance to standards and best practices. Trove is a DBaaS built on OpenStack and is becoming more popular by the day.Since Trove is one of the most recent projects of OpenStack, DBAs and system administrators can find it difficult to set up and run a DBaaS using OpenStack Trove. This book helps DBAs make that step. We start by introducing you to the concepts of DBaaS and how is it implemented using OpenStack Trove. Following this, we look at implementing OpenStack and deploying Trove. Moving on, you will learn to create guest images to be used with Trove. We then look at how to provision databases in self-service mode, and how to perform administration tasks such as backup and recovery, and fine-tuning databases. At the end of the book, we will examine some advanced features of Trove such as replication.
Ajeet Singh Raina, Harsh Manvar
Modern AI systems don’t fail at modeling; they fail in production. Moving from experiments to reliable, scalable systems requires more than notebooks and scripts. It requires infrastructure.Operational AI with Docker shows you how to build, deploy, and operate AI systems that work beyond a single machine. You’ll learn how to use Docker as a consistent runtime for machine learning workflows, package models as reproducible artifacts, and run them reliably across environments.Starting with containerized machine learning, you’ll progress to model serving, AI deployment, and scalable infrastructure using Kubernetes. You’ll implement production-ready patterns for resource management, autoscaling, observability, and performance tuning, ensuring your AI workloads remain stable under real-world conditions.The book goes beyond traditional MLOps by introducing agentic AI systems, including autonomous agents, multi-agent architectures, and secure execution environments. You’ll also explore modern integration patterns using the Model Context Protocol (MCP), enabling AI systems to interact safely with tools, APIs, and data sources.By the end of this book, you’ll be able to design and operate production AI systems that are reproducible, scalable, and ready for real-world deployment using Docker and Kubernetes.
Ankur Gupta
Oracle Goldengate 11g Complete Cookbook is your complete guide to all aspects of Goldengate administration. The recipes in this book will teach you how to setup Goldengate configurations for simple and complex environments requiring various filtering and transformations. It also covers various aspects of tuning and troubleshooting the replication setups using exception handling, custom fields, and logdump utility.The book begins by explaining some basic tasks like Installation and Process groups setup. You will then be introduced to some further topics including DDL replication and various options to perform Initial Loads. You will then learn some advanced administration tasks such as Multi Master replication setup and conflict resolution. Further recipes, contain the cross platform replication and high availability options for Goldengate.
Nick Haralabidis
Oracle's Application Development Framework (ADF) for Fusion Web Applications leverages Java EE best practices and proven design patterns to simplify constructing complex web solutions with JDeveloper, and this hands-on, task-based cookbook enables you to realize those complex, enterprise-scale applications. With the help of real-world implementations, practical recipes cover everything from design and construction, to deployment, testing, debugging and optimization. This practical, task-based cookbook takes you, the ADF developer, on a practical journey for building Fusion Web Applications. By implementing a range of real world use cases, you will gain invaluable and applicable knowledge for utilizing the ADF framework with JDeveloper 11gR2. Oracle JDeveloper 11gR2 Cookbookù is a task-based guide to the complete lifecycle of Fusion Web Application development using Oracle JDeveloper 11gR2 and ADF.You will get quickly up and running with concepts like setting up Application Workspaces and Projects, before delving into specific Business Components such as Entity Objects, View Objects, Application Modules and more. Along the way you will encounter even more practical recipes about ADF Faces UI components and Backing Beans, and the book rounds off by covering security, session timeouts and exceptions.With Oracle JDeveloper 11gR2 Cookbookù in hand you will be equipped with the practical knowledge of a range of ready to use implementation cases which can be applied to your own Fusion Web ADF Applications.
Bayo Erinle
Performance testing with JMeter 2.9 is critical to the success of any software product launch and continued scalability. Irrespective of the size of the application's user base, it's vital to deliver the best user experience to consumers. Apache JMeter is an excellent testing tool that provides an insight into how applications might behave under load enabling organizations to focus on making adequate preparations.Performance Testing with JMeter 2.9 is a practical, hands-on guide that equips you with all the essential skills needed to effectively use JMeter to test web applications using a number of clear and practical step-by-step guides. It allows you take full advantage of the real power behind Apache JMeter, quickly taking you from novice to master.Performance Testing with JMeter 2.9 begins with the fundamentals of performance testing and gets you acquainted with JMeter. It will guide you through recording realistic and maintainable scripts.You will acquire new skills working with tools such as Vagrant, Puppet, and AWS, allowing you to leverage the cloud to aid in distributed testing. You will learn how to do some BeanShell scripting and take advantage of regular expressions, JMeter properties, and extension points to build comprehensive and robust test suites. Also, you will learn how to test RESTful web services, deal with XML, JSON, file downloads/uploads, and much more. Topics like resource monitoring, distributed testing, managing sessions, and extending JMeter are also covered.Performance Testing with JMeter 2.9 will teach you all you need to know to take full advantage of JMeter for testing web applications, dazzle your co-workers, and impress your boss! You will go from novice to pro in no time.
Kevin Dunglas
Doctrine 2 has become the most popular modern persistence system for PHP. It can either be used as a standalone system or can be distributed with Symfony 2, and it also integrates very well with popular frameworks. It allows you to easily retrieve PHP object graphs, provides a powerful object-oriented query language called DQL, a database schema generator tool, and supports database migration. It is efficient, abstracts popular DBMS, and supports PHP 5.3 features.Doctrine is a must-have for modern PHP applications.Persistence in PHP with Doctrine ORM is a practical, hands-on guide that describes the full creation process of a web application powered by Doctrine. Core features of the ORM are explained in depth and illustrated by useful, explicit, and reusable code samples.Persistence in PHP with Doctrine ORM explains everything you need to know to get started with Doctrine in a clear and detailed manner.From installing the ORM through Composer to mastering advanced features such as native queries, this book is a full overview of the power of Doctrine. You will also learn a bunch of mapping annotations, create associations, and generate database schemas from PHP classes. You will also see how to write data fixtures, create custom entity repositories, and issue advanced DQL queries. Finally it will teach you to play with inheritance, write native queries, and use built-in lifecycle events. If you want to use a powerful persistence system for your PHP application, Persistence in PHP with Doctrine ORM is the book you.