News Aggregator

I'm Done With Unit and Integration Tests

Aggregated on: 2023-04-06 18:45:12

I've been writing developer tests for a very long time. Lately, I've been reflecting on the types of tests I write and why some are easier than others. When teaching and coaching others how to write tests, I almost always explain what I mean by "Unit Tests" and "Integration Tests": Unit Tests don't touch hardware, don't do I/O, etc. (This should sound familiar to some of you, as it's the same idea as the set of unit testing rules by Michael Feathers written in 2005), and test against a single object or group of objects (I use the terms Sociable and Solitary to differentiate between the different kinds of "unit" tests, as defined by Jay Fields). I'd then demonstrate what I meant like this: Java @Test public void fullDeckHas52Cards() { Deck deck = new Deck(); assertThat(deck.size()) .isEqualTo(52); } @Test public void drawCardFromDeckReducesDeckSizeByOne() { Deck deck = new Deck(); deck.draw(); assertThat(deck.size()) .isEqualTo(51); }

How to Use Epics in Jira

Aggregated on: 2023-04-06 17:45:12

Effective project management is essential in software development. Jira’s Epics provide a powerful solution for managing complex software projects, and understanding how to use them can make all the difference. In this article, we’ll dive deep into the technical aspects of utilizing Epics in the Jira workflow, exploring the advanced features and Jira best practices that can streamline your software development process. So, let’s delve into the intricacies of agile project management in software development and take your workflow to the next level.

AWS: Integrating OpenAPI With the Amazon API Gateway and Lambda Functions

Aggregated on: 2023-04-06 17:15:12

API Gateway is the AWS service that allows interfacing an application's back-end with its front-end. The figure below shows an example of such an application, consisting of a web/mobile-based front-end and a back-end residing in a REST API, implemented as a set of serverless Lambda functions, as well as a number of legacy services. The figure above illustrates the so-called design pattern Legacy API Proxy, as described by Peter Sbarski, Yan Cui, and Ajay Nair in their excellent book Serverless Architectures on AWS (Manning, 2022). This pattern refers to a use case where Amazon API Gateway and Lambda are employed together, in order to create a new API layer over legacy APIs and services, such that to adapt and reuse them. In this design, the API Gateway exposes a REST interface invoking Lambda functions which, in turn, modify the requests and the responses or transform data to legacy-specific formats. This way, legacy services may be consumed by modern clients that don't support older protocols.

DevOps Is the Philosophy, Platform Is the Practice

Aggregated on: 2023-04-06 16:30:12

"DevOps is dead." Well, not exactly. But the DevOps methodology of "you build it, you run it" has been failing development teams for years.

The Data Streaming Landscape

Aggregated on: 2023-04-06 16:30:12

Data streaming is a new software category to process data in motion. Apache Kafka is the de facto standard used by over 100,000 organizations. Plenty of vendors offer Kafka platforms and cloud services. Many complementary stream processing engines like Apache Flink and SaaS offerings have emerged. And competitive technologies like Pulsar and Redpanda try to get market share. This blog post explores the data streaming landscape of 2023 to summarize existing solutions and market trends. Data Streaming Is a New Software Category Data-driven applications are the new black. This approach increases the business value as the overall goal by increasing revenue, reducing cost, reducing risk, or improving the customer experience.

Java Platform Renaissance: 42 Practical Design Patterns

Aggregated on: 2023-04-06 16:00:12

My work, my first book, was recently published. The book I've been working on for about a year. Although the actual work took about a year, refining the idea and things about the examples started quite a while before this work even started. And I'm not just talking about studying or contributing to the development of the Java platform itself. I mean hours of meetings, discussions, or writing test cases to prove the correctness of hypotheses to find a solution to a critical challenge. And maybe not only that but also time spent helping newcomers, team members, colleagues, or people in charge not only to properly grasp the challenge but also the platform, the tool we are going to use. The aim of the article is to introduce my newly published book "Practical Design Pattern for Java Developers" (Figure 1., Ref. 7). Together, we'll explore today's application development challenges and dive deeper into some of Java's new language enhancements by exploring the Builder Design pattern in more detail.

Setting up iOS Framework for Unity

Aggregated on: 2023-04-06 16:00:12

Part 1: Launch UIViewController from Unity I won’t waste your time on a long introduction about the technologies that I will describe here. You most likely already work as an iOS Engineer or Game Developer, which means you probably have some questions regarding the topic of this article. So, let’s get started. This article is split into two parts. In the first part, you will learn how to launch a simple UIViewController from Unity. We will force C# to understand Swift. In the second part, we will try to expand the usage of Swift in Unity and explore its limitations.

The Kappa Architecture: A Cutting-Edge Approach for Data Engineering

Aggregated on: 2023-04-06 16:00:12

In today's fast-paced world of big data, data engineering has become a critical discipline for organizations to process and analyze large volumes of data efficiently. One innovative approach that has gained traction is the Kappa Architecture, a unique data engineering framework that challenges traditional data processing paradigms. In this article, we will explore the Kappa Architecture and its key features that make it a cutting-edge approach to data engineering. The Kappa Architecture, introduced by Jay Kreps, co-founder of Confluent, is designed to handle real-time data processing in a scalable and efficient manner. Unlike the traditional Lambda Architecture, which separates data processing into batch and stream processing, the Kappa Architecture promotes a single pipeline for both batch and stream processing, eliminating the need for maintaining separate processing pipelines.

Kubernetes Alternatives to Spring Java Framework

Aggregated on: 2023-04-06 16:00:12

Spring Cloud and Kubernetes both complement each other to build a cloud-native platform and run microservices on the Kubernetes containers. Kubernetes provides many features which are similar to Spring Cloud and Spring Config Server features. Spring framework has been around for many years. Even today, many organizations prefer to go with Spring libraries because it provides many features. It's a great deal when developers have total control over cloud configuration along with business logic source code.

Identity Federation: Simplifying Authentication and Authorization Across Systems

Aggregated on: 2023-04-06 15:15:12

In today's digital age, organizations rely on a variety of applications and systems to carry out their business operations. However, managing user identities and access across multiple systems can be a complex and time-consuming process. This is where identity federation comes in, offering a solution to simplify authentication and authorization across systems. Identity federation is a mechanism that allows different identity management systems to share authentication and authorization information in a secure and standardized way. It enables users to access multiple applications or systems using a single set of credentials without having to sign in to each individual system separately. This not only simplifies the user experience but also reduces the administrative burden of managing user identities and access across multiple systems.

Ensuring Code Quality With Unit Testing and Integration Testing in CI/CD

Aggregated on: 2023-04-06 14:45:12

In the world of software development, ensuring code quality is critical to the success of any project. Code that is buggy, unreliable, or inefficient can lead to costly errors and negative user experiences. One way to ensure code quality is through the use of testing methodologies, such as Unit Testing and Integration Testing. These two integration tests can be especially effective when integrated into a Continuous Integration and Continuous Deployment (CI/CD) workflow. Explore the importance of Unit Testing and Integration Testing in CI/CD pipelines in this article. Here, we'll discuss how these two approaches can help to ensure code quality and reliability throughout the software development process. Also, we'll explain these two testing approaches in detail here and know the differences between the two. Let's take a look!

API Performance Tuning

Aggregated on: 2023-04-06 14:00:12

APIs/Services performance plays an important role in providing a better experience to the users. There are many ways available through which we can make our APIs/services perform better. In this article, we are going to see some such tips to improve the performance of the APIs/Services. Below are some of the metrics that we need to consider while optimizing the performance of APIs/Services:

ChatGPT on GPT-4

Aggregated on: 2023-04-06 03:15:10

TL; DR: ChatGPT 4: A Bargain for Scrum Practitioners? When OpenAI released its new LLM model GPT-4 last week, I could not resist and signed up for $20 monthly. I wanted to determine whether ChatGPT 4 is superior to its predecessor, which left a good impression in recent months; see my previous articles on Scrum, Agile, and ChatGPT. I decided to run three comparisons, using the identical prompt to trigger answers from the new GPT-4 and previous GPT-3.5 models. Read on and learn what happened. It was not a foregone conclusion.

3 Ways to Track Construction Assets Using Ultra-Wideband

Aggregated on: 2023-04-06 00:15:10

Ultra-wideband (UWB) technology uses high-frequency radio waves and operates across a broad portion of the spectrum. Although some of its earliest uses relate to the military, people are increasingly interested in using it for asset tracking in construction. That allows them to scan a large target area and quickly pinpoint an item’s precise location. Here are some eye-opening reasons to consider using UWB tracking for better construction site visibility. 1. Deploy the Technology on a Busy Site Construction site decision-makers have an ongoing need for outdoor asset tracking. Such solutions should ideally be wireless since wires can pose tripping and other safety hazards.

Workshop Design With ChatGPT

Aggregated on: 2023-04-05 23:45:09

TL; DR: Workshop Design With ChatGPT The following article explores whether we can use ChatGPT-4 to create workshops for agile practitioners; for example, Scrum Masters. While Liberating Structures have simplified the task, workshop design with ChatGPT may provide an alternative. As you will learn, and despite being prone to lapse into project management speak, ChatGPT is remarkably capable of doing so, provided we feed it suitable prompts. Whether this requirement gives ChatGPT an edge over manually creating workshops remains to be seen.

How To Create a GraalVM Docker Image

Aggregated on: 2023-04-05 22:45:09

In this post, you will learn how to create a Docker image for your GraalVM native image. By means of some hands-on experiments, you will learn that it is a bit trickier than what you are used to when creating Docker images. Enjoy! Introduction In a previous post, you learned how to create a GraalVM native image for a Spring Boot 3 application. Nowadays, applications are often distributed as Docker images, so it is interesting to verify how this is done for a GraalVM native image. A GraalVM native image does not need a JVM, so can you use a more minimalistic Docker base image for example? You will execute some experiments during this blog and will learn by doing.

ActiveMQ JMS (Java Messaging Service) vs. Data Streaming Kfaka

Aggregated on: 2023-04-05 20:30:09

ActiveMQ and Kafka are both messaging systems used for real-time data processing and streaming. Both of these systems are open-source and offer different features that cater to specific use cases. While ActiveMQ JMS and Kafka are both used for message queuing and real-time data processing, there are significant differences between them. ActiveMQ JMS is a traditional message broker that supports multiple messaging protocols such as JMS, AMQP, and MQTT. It is designed to provide reliable message delivery and offers features such as message persistence, clustering, and transaction support. ActiveMQ JMS is commonly used in enterprise systems for mission-critical applications where reliability is of utmost importance.

A Guide to Data Labeling and Annotating: Importance, Types, and Best Practices

Aggregated on: 2023-04-05 19:15:09

Data is a vital part of making informed decisions for businesses and organizations across a range of industries today. Nevertheless, raw data alone is rarely sufficient for deriving insights and guiding decision-making. By providing context and structure to raw data, annotations, and labels help make sense of it. The annotation of data refers to the addition of metadata or descriptive information to raw data, such as images, videos, or texts. Data can be categorized and organized using labels, tags, or captions. Annotated data can be labeled manually or automatically to make it easier to interpret and utilize by assigning specific attributes or values.

Taking AI/ML Ideas to Production

Aggregated on: 2023-04-05 18:15:09

The integration of AI and ML in products has become a trend in recent years. Companies are trying to incorporate these technologies into their products to improve their efficiency and performance. And this year, particularly with the boom of ChatGPT, almost every company is trying to introduce a feature in this domain. One of the main benefits of AI and ML is their ability to learn and adapt. They can analyze data and use it to improve their performance over time. This means that products that incorporate these technologies can become smarter and more efficient over time. Let's understand now how companies are taking their ideas to production. Usually, they start with hiring a few data scientists who will figure out what models to create to solve the problem, fine-tune them, and handover to MLOps or DevOps engineers to deploy. Your DevOps engineers may or may not know how to efficiently take these models to production. That's where you need specialized skills such as Machine learning engineers and MLOps who understand how to manage the whole process of the CI/CD/CT pipeline efficiently.

Agent 008: Chaining Vulnerabilities to Compromise GoCD

Aggregated on: 2023-04-05 17:30:09

GoCD is a popular Java CI/CD solution with a large range of users, from NGOs to Fortune 500 companies, with billions of dollars in revenue. Naturally, this makes it a critical piece of infrastructure and an extremely attractive target for attackers. In a previous article, Agent 007: Pre-Auth Takeover of Build Pipelines in GoCD, the SonarSource R&D team demonstrated how unauthenticated attackers could impersonate build agents and access features that were previously protected by authentication mechanisms (CVE-2021-43287), leading to the disclosure of credentials and sensitive tokens for third-party services. In this follow-up article, I describe three additional vulnerabilities discovered and responsibly disclosed by the SonarSource R&D team in GoCD 21.2.0 and below. First, a vulnerability that can be used by attackers impersonating build agents to force administrators to perform security-sensitive actions without their knowledge (CVE-2021-43288). Then, two additional vulnerabilities could be chained, with the first one fully compromising the targeted instance by executing arbitrary commands (CVE-2021-43286, CVE-2021-43289) on the server hosting GoCD. These findings are already addressed by the latest release of GoCD: this article aims to share the root cause analysis and insights on how they could be exploited.

Using Environment Variable With Angular

Aggregated on: 2023-04-05 16:45:09

Developing an application can be done with just localhost URLs, but when it comes to building and deploying software, we need to change these URLs to appropriate values. While working with Angular, it might be painful to replace all these values without making any mistakes or complex configurations. Some guides say it can be done by configuring “Webpack,” but I find them quite confusing. Here is a workaround solution that will work for all bundlers and can also work with Docker builds.

Python vs. R: A Comparison of Machine Learning in the Medical Industry

Aggregated on: 2023-04-05 16:15:09

The use of machine learning in the medical industry has gained significant traction in recent years thanks to its ability to improve patient outcomes, reduce costs, and streamline clinical workflows. While there are several programming languages available for machine learning, Python and R are the two most popular languages in the medical industry. This article discusses the use of Python and R in machine learning in the medical industry and argues why Python is considered the superior language in this field. Python in the Medical Industry Python is a high-level programming language that is easy to learn and use, making it a popular choice among data scientists and machine learning engineers in the medical industry. The following are some of the key reasons why Python is the preferred language in this field:

Red-Black Trees in C#: A Guide to Efficient Self-Balancing Binary Search Trees

Aggregated on: 2023-04-05 16:15:09

Welcome back to the final article in our series on binary search trees in C#. In our previous articles, we explored the fundamentals of binary search trees and the self-balancing AVL trees. We learned that while AVL trees guarantee a balanced tree structure, they require significant computational overhead to maintain balance factors and execute multiple rotations. In this article, we will delve into another self-balancing binary search tree, the red-black tree. Red-black trees are designed to strike a balance between the efficiency of operations and the maintenance of a balanced tree structure. Unlike AVL trees, red-black trees use a color coding scheme to balance the tree, making it a more efficient alternative in certain scenarios.

Choosing the Right IAM Solution

Aggregated on: 2023-04-05 16:15:09

Identity and Access Management (IAM) is one of the critical components of any commercial software. As the name suggests, IAM solutions cover the identity of the users, their roles, privileges, authentication, and authorization. Long story short, IAM is based on proven industry-standard protocols and is the backbone of software security. Because access management is a complex topic, the engineering teams usually start with a simplistic local authentication model. In such a case, the application itself manages users — and their passwords — and serves a login screen to the user whenever he/she needs to authenticate. This is an easy solution that, unfortunately, reaches its limits once the software matures, and the users expect integration with various single-sign-on providers, self-service registration, password reset, and integrations with other products. Moreover, security engineers on the customer’s side require adherence to certain policies — usage of multi-factor authentication, password complexity, and reset policies. The complexity of the once simple local IAM increases exponentially, and it makes little sense to try to implement all these features yourself using only basic libraries. As the IAM landscape is vast, the protocols are complex, and it is really easy to code something just imprecise enough to open doors for the attacker.

Designing Sustainable Hybrid Cloud Architecture: The Crucial Role of Carbon Footprint as a Non-Functional Requirement

Aggregated on: 2023-04-05 14:15:09

This article discusses the increasing demand for cloud computing services and its impact on the environment, highlighting the need to prioritize sustainability and reduce carbon emissions in hybrid cloud environments. It emphasizes the importance of non-functional requirements, specifically the carbon footprint, in designing hybrid cloud architecture and the need for standardized reporting of carbon emissions for transparency and compliance. The article also explores various opportunities to minimize carbon footprint, including optimizing energy usage and hardware requirements, as well as managing carbon footprint through tracking and reporting emissions, optimizing hardware utilization, and adopting renewable energy sources. The role of cloud providers in helping businesses reduce their carbon footprint is discussed, along with the importance of collaboration between business leaders, IT teams, and cloud providers to integrate sustainability into the solution design process. Additionally, the article highlights the significant impact of non-functional requirements such as workload placement and network routing on a business's carbon footprint, emphasizing the need to consider sustainability factors during the design and implementation of hybrid cloud environments to reduce carbon emissions and comply with regulatory requirements.

Build a Celebrity Twitter Chatbot with GPT-4!

Aggregated on: 2023-04-05 13:45:09

This is what you will be building: A custom chatbot using MindsDB’s connectors to Twitter, OpenAI’s GPT-4, and custom prompts. A simple example is this Twitter bot — @Snoop_Stein — who will reply with the appropriate context and personality to any tweets which mention him. If you haven’t tried tweeting to SnoopStein yet, check it out and tweet at your new friend and rapping physicist! See what it comes up with.

Deep Learning Neural Networks: Revolutionising Software Test Case Generation and Optimization

Aggregated on: 2023-04-05 13:45:09

Deep learning neural networks (DLNN) are a subset of machine learning techniques that model high-level abstractions in data through multiple layers of interconnected nodes. These networks can automatically learn representations from raw data, enabling them to perform tasks such as image and speech recognition, natural language processing, and game playing. This section provides an overview of DLNN, discusses its role in automated test case generation and optimization, and highlights successful applications and future trends in this area. Structure of Deep Learning Neural Networks DLNN consists of interconnected layers of artificial neurons, also known as nodes. These layers can be grouped into three categories:

What Are Storage Devices?

Aggregated on: 2023-04-05 13:15:09

In today's age of digital technology, the volume of data being produced every second is astronomical. From personal data to corporate data to machine-to-machine data, the amount of data generated every day is staggering. As a result, the need for efficient and safe storage devices has increased. Storage devices are an essential part of computing, and they allow users to save and retrieve data easily. Storage devices are hardware components that are used to store and retrieve digital data. They can be used to store a wide variety of information, including documents, photos, videos, music, and software programs. There are two main types of storage devices: primary storage and secondary storage.

What Is the Real Root Cause of Your Problem?

Aggregated on: 2023-04-05 13:15:09

There is a project. Code is written, everything is tested, coverage is high, and features get delivered. There are bugs from time to time, but incidents get fixed fast, and no one worries about the situation. Well, business as usual. Time passes...

No More Goerli Faucet! Using the New Infura Sepolia Faucet for Ethereum Smart Contract Testing

Aggregated on: 2023-04-05 13:15:09

When you first start developing on Ethereum, you quickly discover how critical it is to test your dapps — even more so than in traditional development. But almost as quickly as learning you need to test is learning that it’s very difficult to get the testnet ETH you need to complete that testing! It’s a frustrating, and at times confounding, problem all Ethereum devs face.

Solving Java Multithreading Challenges in My Google Photos Clone [Video]

Aggregated on: 2023-04-05 04:30:09

We want to turn our Google Photos clone from single-threaded to multithreaded, to generate thumbnails much faster than before - but there are a couple of challenges along the way. We'll learn that using Java's Parallel File Streams seems to be a buggy endeavor, so we'll fall back on good, old ExecutorServices. But how many threads should we use to generate thumbnails? How can threads get in conflict with each other? How do we make our program fail-safe for threading issues? Find out in this episode!

Ultrafast Persistence on Jakarta EE

Aggregated on: 2023-04-05 03:30:09

In this tutorial, we will explore the exciting world of MicroStream, a powerful open-source platform that enables ultrafast data processing and storage. Specifically, we will explore how MicroStream can leverage the new Jakarta Data and NoSQL specifications, which offer cutting-edge solutions for handling data in modern applications. With MicroStream, you can use these advanced features and supercharge your data processing capabilities while enjoying a simple and intuitive development experience. So whether you're a seasoned developer looking to expand your skill set or just starting in the field, this tutorial will provide you with a comprehensive guide to using MicroStream to explore the latest in data and NoSQL technology. MicroStream is a high-performance, in-memory, NoSQL database platform for ultrafast data processing and storage. One of the critical benefits of MicroStream is its ability to achieve lightning-fast data access times, thanks to its unique architecture that eliminates the need for disk-based storage and minimizes overhead. With MicroStream, you can easily store and retrieve large amounts of data in real-time, making it an ideal choice for applications that require rapid data processing and analysis, such as financial trading systems, gaming platforms, and real-time analytics engines. MicroStream provides a simple and intuitive programming model, making it easy to integrate into your existing applications and workflows.

The Secret to High-Availability System for the Cloud

Aggregated on: 2023-04-04 22:30:09

What Is a Highly-Available System? You call a system highly available when it can remain operational and accessible even when there are hardware and software failures. The idea is to ensure continuous service. We all want our system to be highly-available. It seems like a good thing to have and makes for a nice bullet point in our application description. But designing a high-availability system is not an easy task. So, how can you go about it?

Processing Time Series Data With QuestDB and Apache Kafka

Aggregated on: 2023-04-04 21:00:09

Apache Kafka is a battle-tested distributed stream-processing platform popular in the financial industry to handle mission-critical transactional workloads. Kafka’s ability to handle large volumes of real-time market data makes it a core infrastructure component for trading, risk management, and fraud detection. Financial institutions use Kafka to stream data from market data feeds, transaction data, and other external sources to drive decisions. A common data pipeline to ingest and store financial data involves publishing real-time data to Kafka and utilizing Kafka Connect to stream that to databases. For example, the market data team may continuously update real-time quotes for a security to Kafka, and the trading team may consume that data to make buy/sell orders. Processed market data and orders may then be saved to a time series database for further analysis.

The Importance of Monitoring Data Stream Applications in Enterprises to Get in SLA

Aggregated on: 2023-04-04 19:15:09

Monitoring data stream applications is a critical component of enterprise operations, as it allows organizations to ensure that their applications are functioning optimally and delivering value to their customers. In this article, we will discuss in detail the importance of monitoring data stream applications and why it is critical for enterprises. Data stream applications are those that handle large volumes of data in real-time, such as those used in financial trading, social media analytics, or IoT (Internet of Things) devices. These applications are critical to the success of many businesses, as they allow organizations to make quick decisions based on real-time data. However, these applications can be complex, and any issues or downtime can have significant consequences.

Jasmine Unit Testing Tutorial: A Comprehensive Guide

Aggregated on: 2023-04-04 18:15:09

In software engineering, collaboration is key. Therefore, it is important to integrate collaboration into all aspects of the engineering processes during development. In light of it, Behavior-Driven Development (BDD) is a process that encourages collaboration among developers, quality assurance experts, and customer representatives in a software project.

The Ultimate Guide to Hyper-V Backups for VMware Administrators

Aggregated on: 2023-04-04 17:45:08

With Microsoft Hyper-V gaining more market share and coming of age, VMware administrators must administer Hyper-V alongside vSphere in their environments. There are certainly similarities in administering the various hypervisors, including VMware and Hyper-V, but there are also subtle differences as well. Often, out of habit, we apply what we know to things that we do not know or that are new to us. While certain methodologies or best practices extend past the boundaries of VMware vSphere and apply to Hyper-V as well, there are differences in the administration and management of Hyper-V that VMware administrators will want to note and understand. These differences also can affect backup processes in the administration.

Load Management With Istio Using FluxNinja Aperture

Aggregated on: 2023-04-04 17:45:08

Service meshes are becoming increasingly popular in cloud-native applications as they provide a way to manage network traffic between microservices. Istio, one of the most popular service meshes, uses Envoy as its data plane. However, to maintain the stability and reliability of modern web-scale applications, organizations need more advanced load management capabilities. This is where Aperture comes in. It offers several features, including: Prioritized load shedding: Drops traffic that is deemed less important to ensure that the most critical traffic is served. Distributed rate-limiting: Prevents abuse and protects the service from excessive requests. Intelligent autoscaling: Adjusts resource allocation based on demand and performance. Monitoring and telemetry: Continuously monitors service performance and request attributes using an in-built telemetry system. Declarative policies: Provides a policy language that enables teams to define how to react to different situations. These capabilities help manage network traffic in a microservices architecture, prioritize critical requests, and ensure reliable operations at scale. Furthermore, the integration with Istio for flow control is seamless and without the need for application code changes.

Enhancing Threat Intelligence and Cybersecurity With IP Geolocation

Aggregated on: 2023-04-04 16:45:09

In the face of mounting cybercrime risks, enterprises and institutions are progressively leveraging IP geolocation as an efficacious instrument for detecting and alleviating internet-based menaces. IP geolocation involves the identification of a device or user's geographical location through their IP address. This advanced technology empowers organizations to track and oversee online activities, recognize looming threats, and proactively thwart potential cyberattacks. Understanding IP Geolocation in Cybersecurity IP geolocation data unveils the whereabouts of network traffic and devices, affording organizations the ability to promptly detect potential threats and take suitable actions. Through meticulous analysis of IP geolocation data, organizations can effectively detect dubious activity, such as connections from unexpected locations, and swiftly impede or isolate them from causing any damage.

Is TestOps the Future of Software Testing?

Aggregated on: 2023-04-04 15:30:08

TestOps is an emerging approach to software testing that combines the principles of DevOps with testing practices. TestOps aims to improve the efficiency and effectiveness of testing by incorporating it earlier in the software development lifecycle and automating as much of the testing process as possible. TestOps teams typically work in parallel with development teams, focusing on ensuring that testing is integrated throughout the development process. This includes testing early and often, using automation to speed up the testing process, and creating continuous testing and improvement.

How to Use HashiCorp Boundary for Secured Remote Access

Aggregated on: 2023-04-04 14:30:08

As companies rely increasingly on multiple applications residing in different regions and networks, security has become a critical concern. The process of accessing these applications can be complex and challenging, particularly when they are running in different data centers and need to be accessed simultaneously or at intervals. Users have to follow multiple steps to access them, such as setting up tunnels, switching contexts, and controlling identity authorization. However, there can be issues such as frequently broken connections and a lack of session monitoring in some cases. To address these challenges, there are solutions such as VPN tunneling, reverse proxies, and Bastion hosts that can be utilized. However, accessing applications across different networks and data centers can be complex and challenging, requiring users to navigate multiple steps like setting up tunnels and controlling authorization. Unfortunately, such processes are often plagued with issues such as frequent disconnections and inadequate session monitoring. To provide better security and ease of use, newer tools such as HashiCorp Boundary, Teleport, and Strong DM have emerged. These tools offer unique advantages that overcome the limitations of previous solutions, such as providing granular access control without exposing private networks, offering centralized session monitoring, and simplifying the setup process.

The Art of App Development: Tips for Building a Successful Mobile App

Aggregated on: 2023-04-04 13:30:08

Mobile apps have become an integral part of our lives, providing us with the ability to accomplish a variety of tasks from our fingertips. Whether it’s booking a ride, ordering food, or checking the weather, there’s an app for almost everything. As a result, app development has become a highly competitive industry. To create a successful mobile app, developers need to have a clear vision, a thorough understanding of their target audience, and the ability to continuously adapt to changing trends. In this article, we’ll explore some tips for app development to help you build a successful mobile app. Understand Your Audience One of the most critical aspects of app development is understanding your target audience. Before you begin designing and coding, take the time to research and understand the needs and preferences of your users. This includes demographic information, such as age, gender, location, and income, as well as behavioral data, such as how often they use their mobile devices and which apps they currently use.

My JPA 2.0 Wish List

Aggregated on: 2023-04-03 22:00:08

(Article originally published in June 2008) Until now we have enjoyed easy persistence using JPA 1.0. It's true that JPA 1.0 has some limitations, but now our friends from JSR-317 are working hard to give us a better standard of persistence for Java.

Top 5 Challenges in Performance Testing of Low Latency Electronic Trading System

Aggregated on: 2023-04-03 19:45:08

A Trading system offers a sophisticated platform to trade securities. The financial institutions enable investors/traders to open, execute, close, and manage market positions in a secure way through their trading system. Most trading systems nowadays offer automated trading controls (algorithmic trades) that help investors in making the right investment strategy decisions quickly, considering all risk possibilities and yielding the best benefits. The trading system is expected to handle high trade volumes ensuring low latency throughput. Examples of the popular trading system include TradeStation, TD Ameritrade, etc. With the emergence of FIX (Financial Information Exchange) protocol standardization and the exponential growth of high-speed electronic algorithmic trading systems, there is a strong focus on the technology stack adopted by the trading systems to meet the ever-changing needs of clients. The clients, in general, includes various market segments, including professional clients, institutional clients, and interbank clients. Even the trade execution venues face a similar technology challenge to perform quick order matching, notifying the trade-to-market data distributor in a few milliseconds. For example, NASDAQ offers a fully automated market.

Reasons to Use Tailwind CSS in React Native Development Projects

Aggregated on: 2023-04-03 18:45:08

Tailwind CSS has become a popular pick for software development teams to design responsive new-era web and mobile app designs effectively and speedily. Using this framework, developers can quickly design custom UIs by directly employing a set of pre-defined CSS classes in an HTML file. And utilizing Tailwind CSS for executing React Native projects is a preferred choice. React Native is one of the most sought-after cross-platform app development frameworks that use React and JavaScript. This article explores the reasons to use Tailwind CSS in React Native app development projects. What Is Tailwind CSS? Tailwind CSS is a small-sized utility-first CSS framework that offers numerous classes. One can customize these classes to any extent. Tailwind CSS redefines the styling process of a software application due to its flexibility and high customization capability. It helps you to build complex designs while keeping the CSS code maintainable and easy to read.

Low Code Approach for Building a Serverless REST API

Aggregated on: 2023-04-03 17:15:08

Building REST-based services is pretty common when it comes to the backend world. When it comes to developing the service in a serverless world, it's a trend, but it comes with a lot of pain. For instance, we need to write a function in the language of our choice, then need to build a provisioning script like cloud formation or terraform to chain the set of services used for building the solution. In this article, we will be building a REST-based service on AWS lambda, API gateway, and PostgreSQL database. The key part is that we will be developing it completely using a low code integration tooling and runtime framework, Kumologica.

Knowledge Graph With ChatGPT

Aggregated on: 2023-04-03 17:15:08

GPT fascinates. I was keen to evaluate my fascination firsthand. This is an extension of some custom code I had written to convert natural language into a "meaningful" representation in a graph but with relatively simple text, which was about the use of natural plants for the treatment of common ailments. To set some context, I did my share of nltk/ NLP learning when I labored and converted the contents of a book to a graph took more than a few weekends and loads of stackoverflow/d3.js threads to fix my errors and clean up code. With that experience, I set out this evening to 'test drive' the GPT engine. I took up two relatively simple use cases, with one being an attempt at summarizing the NIST 800 sp 53 control catalog in a simple graph, while the other was relatively more human imagination-driven, with me wanting to narrate a simple story of the "boy who cried wolf" using Neo4j.

Creating Scalable OpenAI GPT Applications in Java

Aggregated on: 2023-04-03 16:30:08

One of the more notable aspects of ChatGPT is its engine, which not only powers the web-based chatbot but can also be integrated into your Java applications. Whether you prefer reading or watching, let’s review how to start using the OpenAI GPT engine in your Java projects in a scalable way, by sending prompts to the engine only when necessary:

A Developer's Dilemma: Flutter vs. React Native

Aggregated on: 2023-04-03 15:00:08

A few years ago, if you or your team decided to develop a mobile app for both iOS and Android, you would be required to maintain two codebases, one for each platform. This meant either learning or hiring developers well-versed in Swift and/or Objective-C(for iOS) and Kotlin and/or Java(for Android), the primary programming languages used to build native apps for these platforms. As you can imagine, this not only puts a strain on your resources and budget allocation but also involves longer development cycles and painstaking efforts to ensure consistency between both apps. With the advent of cross-platform app development frameworks in the last few years, mobile app developers and companies are increasingly moving or at least considering using these technologies to build their mobile apps. The primary reason is that these frameworks enable developers to write code only once and build for both Android and iOS. Maintaining a single codebase significantly reduces your time-to-launch and ensures a high level of consistency between both apps. We will discuss in detail in a bit how this is made possible by React Native and Flutter, which are the two most popular cross-platform mobile app development frameworks at the moment. React Native is a Facebook(Now Meta) project and was released publicly about two years before Google released the initial version of Flutter in 2017. Before the emergence of these two frameworks, there were a few other options for developers, like Xamarin, Cordova, and Ionic, but they have since fallen out of favor because of many complexity and performance issues. There is a relatively recent effort by the JetBrains team(the company that built some of the popular IDEs) called Kotlin Multiplatform mobile. However, it is still in Beta and not as popular as React Native or Flutter.

Understanding AVL Trees in C#: A Guide to Self-Balancing Binary Search Trees

Aggregated on: 2023-04-03 14:00:08

In my previous article, we discussed the binary search tree and its implementation in C#. We learned that this data structure allows for fast searching, insertion, and deletion of elements in logarithmic time. Still, if the tree is not balanced properly, its performance can suffer greatly. We also noted that there is a more advanced tree called AVL with self-balancing, which guarantees logarithmic time complexity for all operations, regardless of the incoming data. In this article, we will continue our exploration of binary search trees by diving deeper into AVL Trees. We will discuss their structure, properties, and implementation details and compare them to other self-balancing trees. We will also provide examples of AVL Trees in action and demonstrate how they solve the problem of unbalanced trees. By the end of this article, you will have a solid understanding of AVL Trees and be equipped with the knowledge to use them effectively in your own code.