Rahul Sharma – författare

Explore the new way of building and maintaining test cases with Java test driven development (TDD) using JUnit 5.

Build an in-depth understanding of the Istio service mesh and see why a service mesh is required for a distributed application. This book covers the Istio architecture and its features using a hands-on approach with language-neutral examples. To get your Istio environment up and running, you will go through its setup and learn the concepts of control plane and data plane. You will become skilled with the new concepts and apply them with best practices to continuously deliver applications. What You Will LearnDiscover the Istio architecture components and the Envoy proxyMaster traffic management for service routing and application deploymentBuild application resiliency using timeout, circuit breakers, and connection poolsMonitor using Prometheus and GrafanaConfigure application security  Who This Book Is ForDevelopers and project managers who are trying to run their application using Kubernetes. The book is not specific for any programming language even though all examples will be in Java or Python.

Use Traefik as a load balancer or a reverse proxy for microservices-based architecture. This book covers Traefik integration for microservices architecture concerns such as service discovery, telemetry, and resiliency.The book focuses on building an in-depth understanding of Traefik. It starts with the fundamentals of Traefik, including different load balancing algorithms available, and failure handling for application resiliency. Examples are included for the failure scenarios. TLS support is explained, including scenarios of TLS termination and TLS forwarding. Traefik supports TLS termination using Let's Encrypt. Traefik deployment in prominent microservices ecosystems is discussed, including Docker and Kubernetes.Traefik is a language-neutral component. This book presents examples of its deployment with Java-based microservices. The examples in the book show Traefik integration with Jaeger/Zipkin, Prometheus, Grafana, and FluentD. Also covered is Traefik for Python-based services and Java-based services deployed in the Kubernetes cluster. By the end of the book, you will confidently know how to deploy and integrate Traefik into prominent microservices ecosystems.What You Will LearnUnderstand Traefik basics and its componentsExplore different load balancing scenarios and TLS terminationConfigure service discovery, circuit breakers, timeouts, and throttlingMonitor Traefik using Prometheus and request tracingWho This Book Is ForDevelopers and project managers who have developed microservices and are deploying them in cloud and on-premise environments with Kubernetes or Docker. The book is not specifically written for any particular programming language. The examples presented use Java or Python.

Apply different enterprise integration and processing strategies available with Pulsar, Apache's multi-tenant, high-performance, cloud-native messaging and streaming platform. This book is a comprehensive guide that examines using Pulsar Java libraries to build distributed applications with message-driven architecture.You'll begin with an introduction to Apache Pulsar architecture. The first few chapters build a foundation of message-driven architecture. Next, you'll perform a setup of all the required Pulsar components. The book also covers work with Apache Pulsar client library to build producers and consumers for the discussed patterns. You'll then explore the transformation, filter, resiliency, and tracing capabilities available with Pulsar. Moving forward, the book will discuss best practices when building message schemas and demonstrate integration patterns using microservices. Security is an important aspect of any application;the book will cover authentication and authorization in Apache Pulsar such as Transport Layer Security (TLS), OAuth 2.0, and JSON Web Token (JWT). The final chapters will cover Apache Pulsar deployment in Kubernetes. You'll build microservices and serverless components such as AWS Lambda integrated with Apache Pulsar on Kubernetes. After completing the book, you'll be able to comfortably work with the large set of out-of-the-box integration options offered by Apache Pulsar. What You'll LearnExamine the important Apache Pulsar components Build applications using Apache Pulsar client librariesUse Apache Pulsar effectively with microservicesDeploy Apache Pulsar to the cloudWho This Book Is ForCloud architects and software developers who build systems in the cloud-native technologies.

This book will show you how to harness the power of Appsmith, an open-source low-code platform with a large set of integration tools and an active community.The book begins with an introduction to Appsmith and its features. As you explore the platform, you will learn about widgets, UI Canvas, and data stores, among other things. Authors Rahul Sharma and Rajat Arora then show you how to build customizations and navigation workflows, as well as how to handle error handling, debugging, and troubleshooting with Appsmith. You will also learn efficient monitoring and authentication for deploying production-ready systems. Low-Code Development with AppSmith provides examples, realistic scenarios, and explanations of the tools you'll need to build successful low-code apps, helping you gain practical skills.Upon completing this book, you will be able to use Appsmith to build low-code solutions that suit your business requirements. What You Will LearnUnderstand low-code development and the factors driving its adoptionSolve your business's most pressing issues with AppsmithGain an understanding of the key concepts of app development, such as data management, APIs, troubleshooting, and debuggingModel different design patterns for low-code development Who This Book Is ForAnyone interested in designing technical solutions with minimal programming. This book assumes a basic understanding of object-oriented programming and JavaScript.

Provides a comprehensive and practical guide for beginners and experienced programmers alike in mastering the fundamental concepts and techniques of the C programming language. The book equips readers with a solid foundation in C programming, enabling them to write efficient, reliable, and maintainable code.

Computing systems rely on a well-defined architecture that dictates how hardware and software interact to execute commands efficiently. Understanding the organization of computer components is crucial for developing robust digital systems. Computer Fundamentals, Architecture, and Organization offers a detailed exploration of computer structures, processing units, memory systems, and input-output mechanisms. It covers fundamental topics such as instruction sets, pipelines, cache design, and system performance. The book also discusses recent advancements in processor design and computing technologies. With clear explanations and diagrams, it is ideal for students pursuing computer science and engineering.

As cyber threats grow increasingly sophisticated, the demand for advanced computational security techniques continues to rise. This field focuses on developing algorithms and systems that protect digital information and ensure privacy. Advanced Computational Security provides a comprehensive overview of modern cybersecurity principles, cryptographic methods, and network protection strategies. It discusses topics such as intrusion detection, secure communication protocols, and threat modeling. The book also examines emerging areas like quantum cryptography and blockchain-based security frameworks. Designed for researchers and professionals, it bridges theoretical foundations with real-world cybersecurity practices.

Key FeaturesBook DescriptionWhat you will learnWho this book is for

Discover how project Reactor enhances the reactive programming paradigm and allows you to build scalable asynchronous applicationsKey FeaturesUse reactive APIs, Flux, and Mono to implement reactive extensionsCreate concurrent applications without the complexity of Java's concurrent APIUnderstand techniques to implement event-driven and reactive applicationsBook DescriptionReactor is an implementation of the Java 9 Reactive Streams specification, an API for asynchronous data processing. This specification is based on a reactive programming paradigm, enabling developers to build enterprise-grade, robust applications with reduced complexity and in less time. Hands-On Reactive Programming with Reactor shows you how Reactor works, as well as how to use it to develop reactive applications in Java.The book begins with the fundamentals of Reactor and the role it plays in building effective applications. You will learn how to build fully non-blocking applications and will later be guided by the Publisher and Subscriber APIs. You will gain an understanding how to use two reactive composable APIs, Flux and Mono, which are used extensively to implement Reactive Extensions. All of these components are combined using various operations to build a complete solution. In addition to this, you will get to grips with the Flow API and understand backpressure in order to control overruns. You will also study the use of Spring WebFlux, an extension of the Reactor framework for building microservices.By the end of the book, you will have gained enough confidence to build reactive and scalable microservices.What you will learnExplore benefits of the Reactive paradigm and the Reactive Streams APIDiscover the impact of Flux and Mono implications in ReactorExpand and repeat data in stream processingGet to grips with various types of processors and choose the best oneUnderstand how to map errors to make corrections easierCreate robust tests using testing utilities offered by ReactorFind the best way to schedule the execution of codeWho this book is forIf you’re looking to develop event- and data-driven applications easily with Reactor, this book is for you. Sound knowledge of Java fundamentals is necessary to understand the concepts covered in the book.

Become proficient in designing, developing and deploying effective software systems using the advanced constructs of Rust Key FeaturesImprove your productivity using the latest version of Rust and write simpler and easier codeUnderstand Rust’s immutability and ownership principle, expressive type system, safe concurrencyDeep dive into the new doamins of Rust like WebAssembly, Networking and Command line toolsBook DescriptionRust is an empowering language that provides a rare combination of safety, speed, and zero-cost abstractions. Mastering Rust – Second Edition is filled with clear and simple explanations of the language features along with real-world examples, showing you how you can build robust, scalable, and reliable programs. This second edition of the book improves upon the previous one and touches on all aspects that make Rust a great language. We have included the features from latest Rust 2018 edition such as the new module system, the smarter compiler, helpful error messages, and the stable procedural macros. You’ll learn how Rust can be used for systems programming, network programming, and even on the web. You’ll also learn techniques such as writing memory-safe code, building idiomatic Rust libraries, writing efficient asynchronous networking code, and advanced macros. The book contains a mix of theory and hands-on tasks so you acquire the skills as well as the knowledge, and it also provides exercises to hammer the concepts in. After reading this book, you will be able to implement Rust for your enterprise projects, write better tests and documentation, design for performance, and write idiomatic Rust code.What you will learnWrite generic and type-safe code by using Rust's powerful type systemHow memory safety works without garbage collectionKnow the different strategies in error handling and when to use themLearn how to use concurrency primitives such as threads and channelsUse advanced macros to reduce boilerplate codeCreate efficient web applications with the Actix-web frameworkUse Diesel for type-safe database interactions in your web applicationWho this book is forThe book is aimed at beginner and intermediate programmers who already have familiarity with any imperative language and have only heard of Rust as a new language. If you are a developer who wants to write robust, efficient and maintainable software systems and want to become proficient with Rust, this book is for you. It starts by giving a whirlwind tour of the important concepts of Rust and covers advanced features of the language in subsequent chapters using code examples that readers will find useful to advance their knowledge.

Design and implement professional-level programs by leveraging modern data structures and algorithms in RustKey FeaturesImprove your productivity by writing more simple and easy code in RustDiscover the functional and reactive implementations of traditional data structuresDelve into new domains of Rust, including WebAssembly, networking, and command-line toolsBook DescriptionRust is a powerful language with a rare combination of safety, speed, and zero-cost abstractions. This Learning Path is filled with clear and simple explanations of its features along with real-world examples, demonstrating how you can build robust, scalable, and reliable programs.You’ll get started with an introduction to Rust data structures, algorithms, and essential language constructs. Next, you will understand how to store data using linked lists, arrays, stacks, and queues. You’ll also learn to implement sorting and searching algorithms, such as Brute Force algorithms, Greedy algorithms, Dynamic Programming, and Backtracking. As you progress, you’ll pick up on using Rust for systems programming, network programming, and the web. You’ll then move on to discover a variety of techniques, right from writing memory-safe code, to building idiomatic Rust libraries, and even advanced macros. By the end of this Learning Path, you’ll be able to implement Rust for enterprise projects, writing better tests and documentation, designing for performance, and creating idiomatic Rust code.This Learning Path includes content from the following Packt products:Mastering Rust - Second Edition by Rahul Sharma and Vesa KaihlavirtaHands-On Data Structures and Algorithms with Rust by Claus MatzingerWhat you will learnDesign and implement complex data structures in RustCreate and use well-tested and reusable components with RustUnderstand the basics of multithreaded programming and advanced algorithm designExplore application profiling based on benchmarking and testingStudy and apply best practices and strategies in error handlingCreate efficient web applications with the Actix-web frameworkUse Diesel for type-safe database interactions in your web applicationWho this book is forIf you are already familiar with an imperative language and now want to progress from being a beginner to an intermediate-level Rust programmer, this Learning Path is for you. Developers who are already familiar with Rust and want to delve deeper into the essential data structures and algorithms in Rust will also find this Learning Path useful.

This volume discusses environmental issues associated with deep-sea mining, with an emphasis on potential impacts, their consequences and the policy perspectives. The book describes the methods and technologies to assess, monitor and mitigate mining impacts on marine environments, and also suggests various approaches for environmental management when conducting deep-sea mining. The volume brings together information and data for researchers, contractors, mining companies, regulators, and NGOs working in the field of deep-sea mining.Section 1 highlights the various environmental issues and discusses methods and approaches that can help in developing environmentally sustainable deep-sea mining.Section 2 details the results and outcomes of studies related to impact assessment of deep-sea mining, and proposes methods for monitoring.Section 3 discusses the need and means for developing data standards and their application to deep-sea mining.Section 4 discusses the policies, approaches, and practices related to deep-sea mining, suggests formats for developing environmental impact statements (EIS) and environmental management plans (EMP), and describes national and international regulations for environmental management.Section 5 concludes the text by putting deep-sea economic activities into an environmental context and conducting techno-economic analyses of deep-sea mining and processing.

This volume discusses environmental issues associated with deep-sea mining, with an emphasis on potential impacts, their consequences and the policy perspectives. The book describes the methods and technologies to assess, monitor and mitigate mining impacts on marine environments, and also suggests various approaches for environmental management when conducting deep-sea mining. The volume brings together information and data for researchers, contractors, mining companies, regulators, and NGOs working in the field of deep-sea mining.Section 1 highlights the various environmental issues and discusses methods and approaches that can help in developing environmentally sustainable deep-sea mining.Section 2 details the results and outcomes of studies related to impact assessment of deep-sea mining, and proposes methods for monitoring.Section 3 discusses the need and means for developing data standards and their application to deep-sea mining.Section 4 discusses the policies, approaches, and practices related to deep-sea mining, suggests formats for developing environmental impact statements (EIS) and environmental management plans (EMP), and describes national and international regulations for environmental management.Section 5 concludes the text by putting deep-sea economic activities into an environmental context and conducting techno-economic analyses of deep-sea mining and processing.

This book is a sequel to ’Deep-Sea Mining: Resource Potential, Technical and Environmental Considerations’ (2017) and ‘Environmental Issues of Deep-Sea Mining: Impacts, Consequences and Policy Perspectives’ (2019), and aims to provide a comprehensive volume on different perspectives of deep-sea mining from specialists around the world.

This book is a sequel to ’Deep-Sea Mining: Resource Potential, Technical and Environmental Considerations’ (2017) and ‘Environmental Issues of Deep-Sea Mining: Impacts, Consequences and Policy Perspectives’ (2019), and aims to provide a comprehensive volume on different perspectives of deep-sea mining from specialists around the world.

This book focuses on general issues of deep-sea mining for seafloor mineral deposits, as well as the scientific, technical, legal and policy issues related to impacts on the water column.

This book focuses on general issues of deep-sea mining for seafloor mineral deposits, as well as the scientific, technical, legal and policy issues related to impacts on the water column. The topic is a growing area of significance due to the ongoing conversations on this issue in the world community, in view of the large-scale consequences resulting from operations of different components of deep-sea mining systems. The chapters are divided in five sections, and are contributed by highly acclaimed scientists, technologists, lawyers and administrators who have decades of experience working on these topics. The information compiled in the book is expected to serve as an important reference for all stakeholders including researchers, contractors, mining companies, regulators and NGOs involved in deep-sea mining and marine environmental conservation.Section 1 provides an overall view of the current status of deep-sea mining and issues related to the water column. Section 2 looks at the engineering considerations for technology related to mining, handling of bulk solids in the marine environment, transporting the ores from seabed to shore as well as processing of deep-sea minerals. Section 3 discusses various approaches for assessment of impacts of deep-sea mining on the water column. Section 4 assesses the chemical, physical and biological characteristics of the water column in different oceans of the world. Finally, section 5 deals with legal, policy and economic aspects of deep-sea mining.

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Forty years after the entry into force of the United Nations Convention on the Law of the Sea (UNCLOS) and the establishment of the International Seabed Authority (ISA), the legal regime anchoring pivotal mandates and responsibilities in support of the sustainable management of the resources of the seabed beyond national jurisdictions (called the ‘Area’) is facing unprecedented challenges. As global interest in seabed mineral resources intensifies, so do unilateral interpretations of treaty obligations, posing a threat to the foundational principles of UNCLOS and the thin consensus-base supporting it. This book critically examines how diverging expectations pertaining to the management of the Area and its resources, living or not, influence the implementation of UNCLOS’ provisions and intersect with some emerging threats, exploring how such political and operational factors affect the role and mandate of ISA and how convergence amongst key actors could be reached in pursuit of the benefit of the common heritage of humankind.The legal regime for access to and regulation of seabed exploration and exploitation in the Area, once seen as a pioneering framework for ocean governance, now stands at a crossroads. The growing pressure for resource exploitation, coupled with divergent interpretations of treaty obligations, risks undermining the legal and ethical underpinnings of the sustainable management of the international seabed area. By situating the ISA within contemporary debates on international law and sustainable development, this book offers an authoritative perspective on the regime’s future relevance and resilience.

This comprehensive book contains contributions from specialists who provide a complete status update along with outstanding issues encompassing different topics related to deep-sea mining.

This comprehensive book contains contributions from specialists who provide a complete status update along with outstanding issues encompassing different topics related to deep-sea mining.