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Open Source Java library with stacktrace filtering, Silent String parsing and Version comparison

Reading time9 min
Views2.2K
Over some time in different jobs, I came across a need for several utilities that I couldn't find available at the time. And I saw that I needed them several times over and over again. So I wrote my own small library that I found very useful. So I just published it as an open-source java library.

Here is the Github link

Javadoc online is available here

Also, this library is available on Maven Central. Here are the Maven artifacts (the version 1.5.1.2 is the latest at the time of writing of this article but might change in the future. To check for the latest version search for artifact «MgntUtils» at http://search.maven.org/):

<dependency>
     <groupId>com.github.michaelgantman</groupId>
     <artifactId>MgntUtils</artifactId>
     <version>1.5.1.2</version>
</dependency>

 <dependency>
     <groupId>com.github.michaelgantman</groupId>
     <artifactId>MgntUtils</artifactId>
     <version>1.5.1.2</version>
     <classifier>javadoc</classifier>
</dependency>

<dependency>
     <groupId>com.github.michaelgantman</groupId>
     <artifactId>MgntUtils</artifactId>
     <version>1.5.1.2</version>
     <classifier>sources</classifier>
</dependency>

Below is just a short explanation of what is there. The library comes with a nicely written (I hope) JavaDoc with a detailed description. So here is the list of features:
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React benefits: A blessing for Businesses?

Reading time3 min
Views3.9K
Launched in 2013, React has been successfully used to develop 1,004,124 websites in the past 6 years. The Javascript library React JS is known for giving simple programming experience and improved performance.

It was released by Facebook to resolve the issues of coding and maintenance with their ads. It was developed with an intention to increase and manage Facebook ads traffic. React has successfully delivered the expected outcomes throughout its journey.
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SARIF SDK and Its Errors

Reading time7 min
Views638

Picture 2

Today we have another high-quality Microsoft project to be checked, which we'll heroically delve into trying to find errors with PVS-Studio. SARIF, an acronym for Static Analysis Interchange Format, which is a standard (file format), designed to interact and share the results of static analyzers with other tools: IDEs, complex code verification and analysis tools (e.g. SonarQube), continuous integration systems, etc. SARIF SDK, respectively, contains .NET developer tools to support SARIF as well as additional files.
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How To Implement JavaScript Utility Functions Using Reduce?

Reading time5 min
Views2.9K


When it comes to code in JavaScript, developers found reduce function as one of the toughest concepts to crack. According to Wikipedia, Reduce has multiple names viz. Accumulate, Fold, Compress and Aggregate. These names clearly indicate the meaning & working of reduce function. The idea behind this is to break down a structure into a single value. Hence, Reduce can be defined as a function which converts a list into any data type.

For example, you can reduce an array [5,4,3,2,1] into the value 15 by just adding them.

Reduce function keeps developers away from using loop in order to fold a list into a single value.

In this blog, you will learn ways to implement well-known functions using reduce as already done by developers in top software development company.

I have listed out 10 JavaScript utility functions recreated using reduce function. So, check out below these functions:-

  • Map


Parameters used


array (to transform list of items), transform Function (is a function used to run on each element)

Working


By using the given transformFunction, each element in the given array get transformed and returns new array of items.

How to implement?


const map = (transformFunction, array1) =>
  array1.reduce((newArray1, xyz) => 
{
	newArray1.push(transformFunction(xyz));

	return newArray1;
  }, 
[]
);

Use case:


const double = (x) => x * 2;
const reverseString = (string) =>
  string
	.split('')
	.reverse()
	.join('');

map(double, [200, 300, 400]);

Output: [400, 600, 800]

map(reverseString, ['Hello Alka', 'I love cooking']);
// ['alkA olleH', ‘gnikooc evol I']
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Top 5 Software Development Practices to Follow in 2020

Reading time6 min
Views9.8K


Though it seems we are just a few months away from reaching 2020, these months are also important in the field of software development. Here in this article, we will see how the coming year 2020 will change the lives of software developers!

Future Software Development Is Here!


Traditional software development is about developing software by writing code and following some fixed rules. But the present-day software development witnessed a paradigm shift with advances in Artificial Intelligence, Machine Learning, and Deep Learning. With the integration of these three technologies, developers will be able to build software solutions that learn the instructions and add extra features and patterns in data that are needed for the desired outcome.

Also read: How Blockchain is helping the healthcare sector?

Let’s Try Out With Some Code


Over time, the neural network software development systems have become more complex in terms of integrations as well as layers of functionality and interfaces. Developers can build a very simple neural network with Python 3.6. Here’s an example of a program that does binary classification with 1 or 0.

Of course, we can start by creating a neural network class:


import numpy as np
X=np.array([[0,1,1,0],[0,1,1,1],[1,0,0,1]])
y=np.array([[0],[1],[1]])


Applying the Sigmoid function:

def sigmoid ():
   return 1/(1 + np.exp(-x))
def derivatives_sigmoid ():
   return x * (1-x)


Training the Model With Initial Weights and Biases:
epoch=10000
lr=0.1
inputlayer_neurons = X.shape[1]
hiddenlayer_neurons = 3
output_neurons = 1

wh=np.random.uniform(size=(inputlayer_neurons,hiddenlayer_neurons))
bh=np.random.uniform(size=(1,hiddenlayer_neurons))
wout=np.random.uniform(size=(hiddenlayer_neurons,output_neurons))
bout=np.random.uniform(size=(1,output_neurons))


For beginners, if you need help regarding neural networks, you can get in touch with top software development company.Or, you can hire AI/ML developers to work on your project.
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ML.NET Model Builder Updates

Reading time2 min
Views1.5K
ML.NET is a cross-platform, machine learning framework for .NET developers, and Model Builder is the UI tooling in Visual Studio that uses Automated Machine Learning (AutoML) to easily allow you to train and consume custom ML.NET models. With ML.NET and Model Builder, you can create custom machine learning models for scenarios like sentiment analysis, price prediction, and more without any machine learning experience!

ML.NET Model Builder


This release of Model Builder comes with bug fixes and two exciting new features:

  • Image classification scenario – locally train image classification models with your own images
  • Try your model – make predictions on sample input data right in the UI

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Announcing .NET Core 3.1 Preview 2

Reading time1 min
Views1K
We’re announcing .NET Core 3.1 Preview 2. .NET Core 3.1 will be a small and short release focused on key improvements in Blazor and Windows desktop, the two big additions in .NET Core 3.0.. It will be a long term support (LTS) release with an expected final ship date of December 2019.

You can download .NET Core 3.1 Preview 2 on Windows, macOS, and Linux.


ASP.NET Core and EF Core are also releasing updates today.

Visual Studio 16.4 Preview 3 and Visual Studio for Mac 8.4 Preview 3 are also releasing today. They are required updates to use .NET Core 3.1 Preview 2. Visual Studio 16.4 includes .NET Core 3.1, so just updating Visual Studio will give you both releases.

Details:


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.NET Core 3 for Windows Desktop

Reading time6 min
Views1.7K
In September, we released .NET Core support for building Windows desktop applications, including WPF and Windows Forms. Since then, we have been delighted to see so many developers share their stories of migrating desktop applications (and controls libraries) to .NET Core. We constantly hear stories of .NET Windows desktop developers powering their business with WPF and Windows Forms, especially in scenarios where the desktop shines, including:

  • UI-dense forms over data (FOD) applications
  • Responsive low-latency UI
  • Applications that need to run offline/disconnected
  • Applications with dependencies on custom device drivers

This is just the beginning for Windows application development on .NET Core. Read on to learn more about the benefits of .NET Core for building Windows applications.

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Blazor Server in .NET Core 3.0 scenarios and performance

Reading time6 min
Views4.9K
Since the release of Blazor Server with .NET Core 3.0 last month lots of folks have shared their excitement with us about being able to build client-side web UI with just .NET and C#. At the same time, we’ve also heard lots of questions about what Blazor Server is, how it relates to Blazor WebAssembly, and what scenarios Blazor Server is best suited for. Should you choose Blazor Server for your client-side web UI needs, or wait for Blazor WebAssembly? This post seeks to answer these questions, and to provide insights into how Blazor Server performs at scale and how we envision Blazor evolving in the future.

What is Blazor Server?


Blazor Server apps host Blazor components on the server and handle UI interactions over a real-time SignalR connection. As the user interacts with the app, the UI events are sent to the server over the connection to be handled by the various components that make up the app. When a component handles a UI event, it’s rendered based on its updated state. Blazor compares the newly rendered output with what was rendered previously and send the changes back to the browser and applies them to the DOM.

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Announcing .NET Core 3.1 Preview 1

Reading time2 min
Views1.2K
We’re announcing .NET Core 3.1 Preview 1. .NET Core 3.1 will be a small release focused on key improvements in Blazor and Windows desktop, the two big additions in .NET Core 3.0. It will be a long term support (LTS) release with an expected final ship date of December 2019.

You can download .NET Core 3.1 Preview 1 on Windows, macOS, and Linux.


ASP.NET Core and EF Core are also releasing updates today.

Visual Studio 16.4 Preview 2 and is also releasing today. It is a recommended update to use .NET Core 3.1 Preview 1. Visual Studio 16.4 includes .NET Core 3.1, so just updating Visual Studio will give you both releases.

Details:


Known Issue: The Visual Studio 16.4 installer may uninstall the .NET Core 3.0 Runtime when it installs .NET Core 3.1. We recommend you re-in-install or repair the .NET Core 3.0 SDK in that case.

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PHP Microservice Framework Swoft: WebSocket Server Part 1

Reading time2 min
Views1.4K


This article we are going to learn is: How to install and run the swoft websocket server.


This article is one of a series of articles on the Swoft WebSocket Server. Let's learn about Swoft!

What is Swoft?


Swoft is a PHP high performance microservice coroutine framework. It has been published for many years and has become the best choice for php.


It can be like Go, built-in coroutine web server and common coroutine client and is resident in memory, independent of traditional PHP-FPM.


There are similar Go language operations, similar to the Spring Cloud framework flexible annotations.


Through three years of accumulation and direction exploration, Swoft has made Swoft the Spring Cloud in the PHP world, which is the best choice for PHP's high-performance framework and microservices management.


Github


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Keyword Tree: graph analysis for semantic extraction

Reading time3 min
Views1.8K

image


This post is a small abstract of full-scaled research focused on keyword recognition. Technique of semantics extraction was initially applied in field of social media research of depressive patterns. Here I focus on NLP and math aspects without psychological interpretation. It is clear that analysis of single word frequencies is not enough. Multiple random mixing of collection does not affect the relative frequency but destroys information totally — bag of words effect. We need more accurate approach for the mining of semantics attractors.

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Digital Forensics Tips&Tricks: Telegram IM-based RAT — Part II

Reading time2 min
Views2.1K
Hello again, guys!

After I published my article about Telegram IM-based RAT, I've received some messages with one common point — what additional evidences can be found if a workstation being infected with Telegram IM-based RAT?

Ok, I thought, let's continue this investigation, moreover the theme had attracted such interest.

image
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Digital Forensics Tips&Tricks: Telegram IM-based RAT — Part I

Reading time3 min
Views2.6K
Did you know that Telegram IM becomes more and more popular as a toolkit to make some illegal do's?
There are a lot of hidden channels and bots with different illegal and piracy content. I can suggest you an article where some of these points are described deeply.

But my point of interest is using Telegram as Remote Access Toolkit (RAT).

image
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Top Software Development Companies for Enterprise & Startups

Reading time9 min
Views3.6K


Every day we hear about new budding software programs. With the rapid advances in the software development industry, new players entering the market and have captured a large segment of the market. So, when you need to track business projects, handle the allocation of assets, and solve other IT challenges, you need help from the top software development companies. However, it doesn’t mean that you should select a software development company on the basis of how appealing it was once. Today, people prefer to check the full profile of a company first and then decide to get their service.

To ease your pressure down, listing here some of the internationally acclaimed software development companies from the development niche. This list has been curated on the basis of a variety of reliable resources like Clutch, GoodFirms, Google SERPs, user's feedback & reviews, different independent review firms including medium.com, themanifest.com, etc. Based on the collected data, I’ve assigned the total score for each of the 10 leaders, and here I represent a list of the top software development companies that are doing best in their domain.

List of the Top Software Development Companies


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Vepp — ISPsystem’s new server and website control panel

Reading time9 min
Views1.3K


Vepp is our new panel for managing servers and websites. At first, we just wanted to transform the interface of ISPmanager 5 but at the designing phase, we figured that (changing) the interface is not enough. We have to change the approach to modern user’s needs and tasks. As a matter of fact, it meant that we had to create a whole new product.


In the article, we’ll explain why we couldn’t make do with only cosmetic changes to ISPmanager 5 and show the result of the global overhaul.

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MVCC in PostgreSQL-1. Isolation

Reading time24 min
Views13K
Hello, Habr! With this article I start a set of series (or a series of sets? — In a word, the idea is grandiose) about the internal structure of PostgreSQL.

The material will be based on training courses (in Russian) on administration that Pavel pluzanov and I are creating. Not everyone likes to watch video (I definitely do not), and reading slides, even with comments, is no good at all.

Unfortunately, the only course available in English at the moment is 2-Day Introduction to PostgreSQL 11.

Of course, the articles will not be exactly the same as the content of the courses. I will talk only about how everything is organized, omitting the administration itself, but I will try to do it in more detail and more thoroughly. And I believe that the knowledge like this is as useful to an application developer as it is to an administrator.

I will target those who already have some experience in using PostgreSQL and at least in general understand what is what. The text will be too difficult for beginners. For example, I will not say a word about how to install PostgreSQL and run psql.

The stuff in question does not vary much from version to version, but I will use the current, 11th vanilla PostgreSQL.

The first series deals with issues related to isolation and multiversion concurrency, and the plan of the series is as follows:

  1. Isolation as understood by the standard and PostgreSQL (this article).
  2. Forks, files, pages — what is happening at the physical level.
  3. Row versions, virtual transactions and subtransactions.
  4. Data snapshots and the visibility of row versions; the event horizon.
  5. In-page vacuum and HOT updates.
  6. Normal vacuum.
  7. Autovacuum.
  8. Transaction id wraparound and freezing.

Off we go!

And before we start, I would like to thank Elena Indrupskaya for translating the articles to English.

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PHP microservice framework — `Hello world` of Swoft

Reading time3 min
Views2.8K


Overview


What is Swoft?


Swoft is a PHP high performance microservice coroutine framework. It has been published for many years and has become the best choice for php. It can be like Go, built-in coroutine web server and common coroutine client and is resident in memory, independent of traditional PHP-FPM. There are similar Go language operations, similar to the Spring Cloud framework flexible annotations.


Through three years of accumulation and direction exploration, Swoft has made Swoft the Spring Cloud in the PHP world, which is the best choice for PHP's high-performance framework and microservices management.

Read more →

Polygonal Mesh to B-Rep Solid Conversion: Algorithm Details and C++ Code Samples

Reading time7 min
Views5.4K
Boundary representation (B-rep) is the primary method of representing modeled objects in most geometric kernels, including our C3D Modeler kernel. The core algorithms that edit models, such as applying fillet operations, performing cutting operations, and obtaining flat projections require the precision of B-rep representations. The rapidly growing variety of 3D data in polygonal formats makes the task of model transformations from polygons into boundary representation increasingly relevant. As a result, we developed a new SDK, C3D B-Shaper, which is part of our C3D Toolkit.

image