Metaprogramming with Python. A programmer's guide to writing reusable code to build smarter applications

Sulekha AloorRavi

Effective and reusable code makes your application development process seamless and easily maintainable. With Python, you will have access to advanced metaprogramming features that you can use to build high-performing applications.The book starts by introducing you to the need and applications of metaprogramming, before navigating the fundamentals of object-oriented programming. Next, you will learn about simple decorators, work with metaclasses, and later focus on introspection and reflection. You’ll also delve into generics and typing before defining templates for algorithms. As you progress, you will understand your code using abstract syntax trees and explore method resolution order. This Python book also shows you how to create your own dynamic objects before structuring the objects through design patterns. Finally, you will learn simple code-generation techniques along with discovering best practices and eventually building your own applications.By the end of this learning journey, you’ll have acquired the skills and confidence you need to design and build reusable high-performing applications that can solve real-world problems.

Spark Cookbook. With over 60 recipes on Spark, covering Spark Core, Spark SQL, Spark Streaming, MLlib, and GraphX libraries this is the perfect Spark book to always have by your side

Rishi Yadav

IoT Edge Computing with MicroK8s. A hands-on approach to building, deploying, and distributing production-ready Kubernetes on IoT and Edge platforms

Karthikeyan Shanmugam

Are you facing challenges with developing, deploying, monitoring, clustering, storing, securing, and managing Kubernetes in production environments as you're not familiar with infrastructure technologies? MicroK8s - a zero-ops, lightweight, and CNCF-compliant Kubernetes with a small footprint is the apt solution for you.This book gets you up and running with production-grade, highly available (HA) Kubernetes clusters on MicroK8s using best practices and examples based on IoT and edge computing.Beginning with an introduction to Kubernetes, MicroK8s, and IoT and edge computing architectures, this book shows you how to install, deploy sample apps, and enable add-ons (like DNS and dashboard) on the MicroK8s platform. You’ll work with multi-node Kubernetes clusters on Raspberry Pi and networking plugins (such as Calico and Cilium) and implement service mesh, load balancing with MetalLB and Ingress, and AI/ML workloads on MicroK8s. You’ll also understand how to secure containers, monitor infrastructure and apps with Prometheus, Grafana, and the ELK stack, manage storage replication with OpenEBS, resist component failure using a HA cluster, and more, as well as take a sneak peek into future trends.By the end of this book, you’ll be able to use MicroK8 to build and implement scenarios for IoT and edge computing workloads in a production environment.

Mastering JBoss Enterprise Application Platform 7. Core details of the Enteprise server supported by clear directions and advanced tips

Francesco Marchioni, Luigi Fugaro

The JBoss Enterprise Application Platform (EAP) has been one of the most popular tools for Java developers to create modular, cloud-ready, and modern applications. It has achieved a reputation for architectural excellence and technical savvy, making it a solid and efficient environment for delivering your applications.The book will first introduce application server configuration and the management instruments that can be used to control the application server. Next, the focus will shift to enterprise solutions such as clustering, load balancing, and data caching; this will be the core of the book. We will also discuss services provided by the application server, such as database connectivity and logging. We focus on real-world example configurations and how to avoid common mistakes. Finally, we will implement the knowledge gained so far in terms of Docker containers and cloud availability using RedHat's OpenShift.

Mastering Apache Cassandra 3.x. An expert guide to improving database scalability and availability without compromising performance - Third Edition

Aaron Ploetz, Tejaswi Malepati, Nishant Neeraj

With ever-increasing rates of data creation, the demand for storing data fast and reliably becomes a need. Apache Cassandra is the perfect choice for building fault-tolerant and scalable databases. Mastering Apache Cassandra 3.x teaches you how to build and architect your clusters, configure and work with your nodes, and program in a high-throughput environment, helping you understand the power of Cassandra as per the new features.Once you’ve covered a brief recap of the basics, you’ll move on to deploying and monitoring a production setup and optimizing and integrating it with other software. You’ll work with the advanced features of CQL and the new storage engine in order to understand how they function on the server-side. You’ll explore the integration and interaction of Cassandra components, followed by discovering features such as token allocation algorithm, CQL3, vnodes, lightweight transactions, and data modelling in detail. Last but not least you will get to grips with Apache Spark.By the end of this book, you’ll be able to analyse big data, and build and manage high-performance databases for your application.

PostgreSQL 12 High Availability Cookbook. Over 100 recipes to design a highly available server with the advanced features of PostgreSQL 12 - Third Edition

Shaun Thomas

Databases are nothing without the data they store. In the event of an outage or technical catastrophe, immediate recovery is essential. This updated edition ensures that you will learn the important concepts related to node architecture design, as well as techniques such as using repmgr for failover automation. From cluster layout and hardware selection to software stacks and horizontal scalability, this PostgreSQL cookbook will help you build a PostgreSQL cluster that will survive crashes, resist data corruption, and grow smoothly with customer demand.You’ll start by understanding how to plan a PostgreSQL database architecture that is resistant to outages and scalable, as it is the scaffolding on which everything rests. With the bedrock established, you'll cover the topics that PostgreSQL database administrators need to know to manage a highly available cluster. This includes configuration, troubleshooting, monitoring and alerting, backups through proxies, failover automation, and other considerations that are essential for a healthy PostgreSQL cluster. Later, you’ll learn to use multi-master replication to maximize server availability. Later chapters will guide you through managing major version upgrades without downtime.By the end of this book, you’ll have learned how to build an efficient and adaptive PostgreSQL 12 database cluster.

Cybersecurity Leadership Demystified. A comprehensive guide to becoming a world-class modern cybersecurity leader and global CISO

Dr. Erdal Ozkaya, Melih Abdulhayoglu

The chief information security officer (CISO) is responsible for an organization's information and data security. The CISO's role is challenging as it demands a solid technical foundation as well as effective communication skills. This book is for busy cybersecurity leaders and executives looking to gain deep insights into the domains important for becoming a competent cybersecurity leader.The book begins by introducing you to the CISO's role, where you'll learn key definitions, explore the responsibilities involved, and understand how you can become an efficient CISO. You'll then be taken through end-to-end security operations and compliance standards to help you get to grips with the security landscape. In order to be a good leader, you'll need a good team. This book guides you in building your dream team by familiarizing you with HR management, documentation, and stakeholder onboarding. Despite taking all that care, you might still fall prey to cyber attacks; this book will show you how to quickly respond to an incident to help your organization minimize losses, decrease vulnerabilities, and rebuild services and processes. Finally, you'll explore other key CISO skills that'll help you communicate at both senior and operational levels.By the end of this book, you'll have gained a complete understanding of the CISO's role and be ready to advance your career.

Professional React Native. Expert techniques and solutions for building high-quality, cross-platform, production-ready apps

Alexander Benedikt Kuttig

The React Native framework offers a range of powerful features that make it possible to efficiently build high-quality, easy-to-maintain frontend applications across multiple platforms such as iOS, Android, Linux, Mac OS X, Windows, and the web, helping you save both time and money. And this book is your key to unlocking its capabilities.Professional React Native provides the ultimate coverage of essential concepts, best practices, advanced processes, and tips for everyday developer problems. The book makes it easy to understand how React Native works under the hood using step-by-step explanations and practical examples so you can use this knowledge to develop highly performant apps. As you follow along, you'll learn the difference between React and React Native, navigate the React Native ecosystem, and revisit the basics of JavaScript and TypeScript needed to create a React Native application. What’s more, you’ll work with animations and even control your app with gestures. Finally, you'll be able to structure larger apps and improve developer efficiency through automated processes, testing, and continuous integration.By the end of this React native app development book, you'll have gained the confidence to build high-performance apps for multiple platforms, even on a bigger scale.

Learning Pixelmator. Enhance your photos effectively and unleash the artist inside, with Pixelmator

Mark Stagi

Today, everybody has a digital camera, but how do you turn your pictures into masterpieces? With Pixelmator, you will be able to edit your photos like a pro and get that artistic, professional feel to your images.Learning Pixelmator will teach you how to use Pixelmator to turn your everyday snapshots into works of art. With an example-based approach, you will learn how to use each tool effectively to create, edit, or enhance your photos. It is for everyone that wants to get started with Pixelmator. Learning Pixelmator guide's you through a series of real-world tutorials to artistically edit your photos from start to finish. Starting with simple corrections, you will move onto advanced image editing techniques like creating a tilt-shift look from a photo, performing skin retouching on a portraits, and colorizing your images for an artistic tone. Covering topics such as using layers to create multi-image layouts and how to use text and shapes to embellish your images. With Learning Pixelmator you will learn everything you need to know to create works of art from your everyday photos. With the skills you will learn from this book the sky will be no limit with your digital photography!

Data Management Strategy at Microsoft. Best practices from a tech giant's decade-long data transformation journey

Aleksejs Plotnikovs

Microsoft pioneered data innovation and investment ahead of many in the industry, setting a remarkable standard for data maturity. Written by a data leader with over 15 years of experience following Microsoft’s data journey, this book delves into every crucial aspect of this journey, including change management, aligning with business needs, enhancing data value, and cultivating a data-driven culture.This book emphasizes that success in a data-driven enterprise goes beyond relying solely on modern technology and highlights the importance of prioritizing genuine business needs to propel necessary modernizations through change management practices. You’ll see how data-driven innovation does not solely reside within central IT engineering teams but also among the data's business owners who rely on data daily for their operational needs. This guide empower these professionals with clean, easily discoverable, and business-ready data, marking a significant breakthrough in how data is perceived and utilized throughout an enterprise. You’ll also discover advanced techniques to nurture the value of data as unique intellectual property, and differentiate your organization with the power of data.Its storytelling approach and summary of essential insights at the end of each chapter make this book invaluable for business and data leaders to advocate for crucial data investments.

Learning Probabilistic Graphical Models in R. Familiarize yourself with probabilistic graphical models through real-world problems and illustrative code examples in R

David Bellot, Dan Toomey

Probabilistic graphical models (PGM, also known as graphical models) are a marriage between probability theory and graph theory. Generally, PGMs use a graph-based representation. Two branches of graphical representations of distributions are commonly used, namely Bayesian networks and Markov networks. R has many packages to implement graphical models.We’ll start by showing you how to transform a classical statistical model into a modern PGM and then look at how to do exact inference in graphical models. Proceeding, we’ll introduce you to many modern R packages that will help you to perform inference on the models. We will then run a Bayesian linear regression and you’ll see the advantage of going probabilistic when you want to do prediction. Next, you’ll master using R packages and implementing its techniques. Finally, you’ll be presented with machine learning applications that have a direct impact in many fields. Here, we’ll cover clustering and the discovery of hidden information in big data, as well as two important methods, PCA and ICA, to reduce the size of big problems.

Sonar Code Quality Testing Essentials. Achieve higher levels of Software Quality with Sonar with this book and

Charalampos S Arapidis, Charalampos S. Arapidis

Sonar is an open source platform used by development teams to manage source code quality. Sonar has been developed with this main objective in mind: make code quality management accessible to everyone with minimal effort. As such, Sonar provides code analyzers, reporting tools, manual reviews, defect-hunting modules, and TimeMachine as core functionalities. It also comes with a plugin mechanism enabling the community to extend the functionality, making Sonar the one-stop-shop for source code quality by addressing not only the developer's requirements, but also the manager's needs.The Sonar Code Quality Testing Essentials book will help you understand the different factors that define code quality and how to improve your own or your team's code using Sonar.You will learn to use Sonar effectively and explore the quality of your source code in the following axes:Coding StandardsDocumentation and CommentsPotential Bugs and DefectsUnit Testing CoverageDesign and ComplexityThrough practical examples, you will customize Sonar components and widgets to identify areas where your source code is lacking. The book goes down to proposing good practices and common solutions that you can put to use to improve such code.You will start with installing and setting up a Sonar server and performing your first project analysis. Then you will go through the process of creating a custom and balanced quality profile exploring all Sonar components through practical examples. After reading the book, you will be able to analyze any project using Sonar and know how to read and evaluate quality metrics.Hunting potential bugs and eliminating complexity are the hottest topics regarding code quality. The book will guide you through the process of finding such problematic areas, leveraging and customizing the most appropriate components. Knowing the best tool for each task is essential. While you improve code and design through the book, you will notice that metrics go high and alerts turn green. You will use the Time Machine and the Timeline to examine how your changes affected the quality.Sonar Code Quality Testing Essentials will enable you to perform custom quality analysis on any Java project and quickly gain insight on even large code bases, as well as provide possible solutions to code defects and complexity matters.

Linux Networking Cookbook. Over 40 recipes to help you set up and configure Linux networks

Gregory Boyce

Linux can be configured as a networked workstation, a DNS server, a mail server, a firewall, a gateway router, and many other things. These are all part of administration tasks, hence network administration is one of the main tasks of Linux system administration. By knowing how to configure system network interfaces in a reliable and optimal manner, Linux administrators can deploy and configure several network services including file, web, mail, and servers while working in large enterprise environments.Starting with a simple Linux router that passes traffic between two private networks, you will see how to enable NAT on the router in order to allow Internet access from the network, and will also enable DHCP on the network to ease configuration of client systems. You will then move on to configuring your own DNS server on your local network using bind9 and tying it into your DHCP server to allow automatic configuration of local hostnames. You will then future enable your network by setting up IPv6 via tunnel providers.Moving on, we’ll configure Samba to centralize authentication for your network services; we will also configure Linux client to leverage it for authentication, and set up a RADIUS server that uses the directory server for authentication.Toward the end, you will have a network with a number of services running on it, and will implement monitoring in order to detect problems as they occur.

Principles of Data Fabric. Become a data-driven organization by implementing Data Fabric solutions efficiently

Sonia Mezzetta

Data can be found everywhere, from cloud environments and relational and non-relational databases to data lakes, data warehouses, and data lakehouses. Data management practices can be standardized across the cloud, on-premises, and edge devices with Data Fabric, a powerful architecture that creates a unified view of data. This book will enable you to design a Data Fabric solution by addressing all the key aspects that need to be considered.The book begins by introducing you to Data Fabric architecture, why you need them, and how they relate to other strategic data management frameworks. You’ll then quickly progress to grasping the principles of DataOps, an operational model for Data Fabric architecture. The next set of chapters will show you how to combine Data Fabric with DataOps and Data Mesh and how they work together by making the most out of it. After that, you’ll discover how to design Data Integration, Data Governance, and Self-Service analytics architecture. The book ends with technical architecture to implement distributed data management and regulatory compliance, followed by industry best practices and principles.By the end of this data book, you will have a clear understanding of what Data Fabric is and what the architecture looks like, along with the level of effort that goes into designing a Data Fabric solution.

Robotics at Home with Raspberry Pi Pico. Build autonomous robots with the versatile low-cost Raspberry Pi Pico controller and Python

Danny Staple

The field of robotics is expanding, and this is the perfect time to learn how to create robots at home for different purposes. This book will help you take your first steps in planning, building, and programming a robot with Raspberry Pi Pico, an impressive controller bursting with I/O capabilities. After a quick tour of Pico, you’ll begin designing a robot chassis in 3D CAD. With easy-to-follow instructions, shopping lists, and plans, you’ll start building the robot. Further, you’ll add simple sensors and outputs to extend the robot, reinforce your design skills, and build your knowledge in programming with CircuitPython. You’ll also learn about interactions with electronics, standard robotics algorithms, and the discipline and process for building robots. Moving forward, you’ll learn how to add more complicated sensors and robotic behaviors, with increasing complexity levels, giving you hands-on experience. You’ll learn about Raspberry Pi Pico’s excellent features, such as PIO, adding capabilities such as avoiding walls, detecting movement, and compass headings. You’ll combine these with Bluetooth BLE for seeing sensor data and remotely controlling your robot with a smartphone. Finally, you’ll program the robot to find its location in an arena.By the end of this book, you’ll have built a robot at home, and be well equipped to build more with different levels of complexity.

Financial Modeling Using Quantum Computing. Design and manage quantum machine learning solutions for financial analysis and decision making

Anshul Saxena, Javier Mancilla, Iraitz Montalban, Christophe Pere

Quantum computing has the potential to revolutionize the computing paradigm. By integrating quantum algorithms with artificial intelligence and machine learning, we can harness the power of qubits to deliver comprehensive and optimized solutions for intricate financial problems.This book offers step-by-step guidance on using various quantum algorithm frameworks within a Python environment, enabling you to tackle business challenges in finance. With the use of contrasting solutions from well-known Python libraries with quantum algorithms, you’ll discover the advantages of the quantum approach. Focusing on clarity, the authors expertly present complex quantum algorithms in a straightforward, yet comprehensive way. Throughout the book, you'll become adept at working with simple programs illustrating quantum computing principles. Gradually, you'll progress to more sophisticated programs and algorithms that harness the full power of quantum computing.By the end of this book, you’ll be able to design, implement and run your own quantum computing programs to turbocharge your financial modelling.