Articles

Spring Boot: Boost JPA Bulk Insert Performance by 100x

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I was facing a problem where I wanted to insert millions of records into the database, which needed to be imported from the file.

So, I did some research around this, and I would like to share with you what I found which helped me improve the insert records throughput by nearly 100 times.

Source de l’article sur DZONE

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Streaming Data From Files Into Multi-Broker Kafka Clusters

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There are multiple ways to ingest data streams into the Apache Kafka topic and subsequently deliver to various types of consumers who are hooked to the topic. The stream of data that collects continuously from the topic by consumers, passes through multiple data pipelines and then stream processing engines like Apache Spark, Apache Flink, Amazon Kinesis, etc and eventually landed upon the real-time applications to deliver a final data-driven decision. From finances, manufacturing, insurance, telecom, healthcare, commerce, and more, real-time applications are becoming the best solution for organizations to take immediate action, gain insights from the updated data. In the present day, Apache Kafka shapes the central nervous system that brings data from all aspects of the business to the large information operational hubs where choices are made.

The text files contain unformatted ASCII text and are commonly used for the storage of information. Each line of the file represents a data record and can be updated continuously to store. Every insert of a new line or lines on the text file can be considered as new data insertion on the file. Henceforth, every addition of a new line or lines on the text file continuously either by humans or applications (no modification on the already inserted line)and subsequently moves or sends to a different location can be considered as data streaming from the file. Every addition of a new line or row in the text file can be analyzed continuously by exporting the new line/lines to the Kafka topic and importing them by consumers that hooks up with the topic.

Source de l’article sur DZONE

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Popular Design News of the Week: December 28, 2020 – January 3, 2021

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Every week users submit a lot of interesting stuff on our sister site Webdesigner News, highlighting great content from around the web that can be of interest to web designers.

The best way to keep track of all the great stories and news being posted is simply to check out the Webdesigner News site, however, in case you missed some here’s a quick and useful compilation of the most popular designer news that we curated from the past week.

10 Free Calendar 2021 Vectors

 

Free HTML/CSS Landing Page Templates Without JavaScript

 

Botsman – Free Platform to Develop, Test and Monitor Telegram Bots

 

Typography Principles

 

Top 10 Web Development Trends to Look Out for in 2021

 

Parametric Color Mixer

 

Add to Calendar Generator – Generate ‘Add to Calendar’ Buttons for your Website

 

What Designers Need to Know About Copyright Infringement

 

Lose the Very – “Very Good English” is not Very Good English. Lose the Very.

 

Linkish – All-in-one Bookmark Manager

 

Life of a Designer Through Funny Memes

 

APIs all the Way Down

 

Got Milk Font

 

14 Bootstrap Profiles

 

Big Review of Major UI Design Trends for Web and Mobile in 2020

 

How to Use Figma’s Inspect Panel

 

Reducing Motion in Animations

 

Dopely Colors – Free Color Palette Generator

 

How to Upload an HTML File to WordPress

 

Using Math in Photoshop

 

How to Set up your WFH Space for Creative Success in 2021

 

StackWhats – Add the WhatsApp Live Chat to your Website

 

How to Export a WordPress Site (Beginner’s Guide)

 

Podpage – Build a Podcast Website in Less than 5 Minutes

 

How to Paginate Data with PHP

 

Want more? No problem! Keep track of top design news from around the web with Webdesigner News.

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Source de l’article sur Webdesignerdepot

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2 Smartest Ways to Structure Sass

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Sass – the extended arm of CSS; the power factor that brings elegance to your code.

With Sass, it is all about variables, nesting, mixins, functions, partials, imports, inheritance, and control directives. Sass makes your code more maintainable and reusable.

And now, I will show you how to make your code more structured and organized.

The organization of files and folders is crucial when projects expand. Modularizing the directory is necessary as the file structure increases significantly. This means structuring is in order. Here is a way to do it.

  • Divide the stylesheets into separate files by using Partials
  • Import the partials into the master stylesheet – which is typically the main.sass file.
  • Create a layout folder for the layout specific files

Types of Sass Structures

There are a few different structures you can use. I prefer using two structures — a simple one and a more complex one. Let’s have a look.

Simple Structure

The simple structure is convenient for a small project like a single web page. For that purpose, you need to create a very minimal structure. Here is an example:

  • _base.sass — contains all the resets, variables, mixins, and utility classes
  • _layout.sass — all the Sass code handling the layout, which is the container and grid systems
  • _components.sass — everything that is reusable – buttons, navbars, cards, and so on
  • _main.sass — the main partial should contain only the imports of the already mentioned files

Another example of the same simple structure is the following:

  • _core.sass — contains variables, resets, mixins, and other similar styles
  • _layout.sass — there are the styles for the header, footer, the grid system, etc
  • _components.sass — styles for every component necessary for that project, including buttons, modals, etc.
  • _app.sass — imports

This is the one I usually use for smaller projects. And when it comes to making a decision of what kind of structure to be used, the size of the project is often the deciding factor.

Why Use This Structure?

There are several advantages why you should use this organisational structure. First of all, the CSS files cache and in doing so, the need to download a new file for every new page visit is decreased. In this way, the HTTP requests decrease as well.

Secondly, this structure is much easier to maintain since there is only one file.

Thirdly, the CSS files can be compressed and thus decrease their size. For a better outcome, it is recommended to use Sass/Less and then do concatenation and minification of the files.

In case files become disorganized, you would need to expand the structure. In such a case, you can add a folder for the components and break it further into individual files. If the project broadens and there is a need for restructuring the whole Sass structure, consider the next, more complex pattern.

The 7-1 Patterned Structure

The name of this structure comes from 7 folders, 1 file. This structure is used by many, as it is considered to be a good basis for projects of larger sizes. All you need to do is organize the partials in 7 different folders, and one single file (app.sass) should sit at the root level handling the imports. Here is an example:

sass/
|
|- abstracts/
| |- _mixins // Sass Mixins Folder
| |- _variables.scss // Sass Variables
|
|- core/
| |- _reset.scss // Reset
| |- _typography.scss // Typography Rules
|
|- components/
| |- _buttons.scss // Buttons
| |- _carousel.scss // Carousel
| |- _slider.scss // Slider
|
|- layout/
| |- _navigation.scss // Navigation
| |- _header.scss // Header
| |- _footer.scss // Footer
| |- _sidebar.scss // Sidebar
| |- _grid.scss // Grid
|
|- pages/
| |- _home.scss // Home styles
| |- _about.scss // About styles
|
|- sections/ (or blocks/)
| |- _hero.scss // Hero section
| |- _cta.scss // CTA section
|
|- vendors/ (if needed)
| |- _bootstrap.scss // Bootstrap
|
- app.scss // Main Sass file

In the Abstract partial, there is a file with all the variables, mixins, and similar components.

The Core partial contains files like typography, resets, and boilerplate code, used across the whole website. Once you write this code, there is no further overwriting.

The Components partial contains styles for all components that are to be created for one website, including buttons, carousels, tabs, modals, and the like.

The Layout partial has all styles necessary for the layout of the site, i.e., header, footer.

The Pages partial contains the styles for every individual page. Almost every page needs to have specific styles that are to be used only for that particular page.

For every section to be reusable and the sass code to be easily accessible, there is the Section/Blocks partial. Also, it is important to have this partial so that you don’t need to search whether particular code is in the home.sass or about.sass files in the Pages partial.

It is a good idea to put each section in a separate .sass file. Thus, if you have two different hero sections, put the code in the same file to know that there you can find the code for the two sections. And if you follow this pattern, you will have the majority of files in this folder.

The Vendors partial is intended for bootstrap frameworks so, if you use one in your project, create this partial.

I recommend you use app.sass as the main folder. Here is how it should look:

// Abstract files
@import "abscracts/all"; // Vendor Files
@import "vendor/bootstrap.scss"; // Core files
@import "core/all"; // Components
@import "components/all"; // Layout
@import "layout/all"; // Sections
@import "sections/all"; // Pages
@import "pages/all";

Instead of having a lot of imports in the file, create an all.sass file in every folder. Each all.sass file should contain all the imports for that folder — and to make it more visible and understandable, create a main file.

Organisation

The biggest benefit of this structure is organisation.You always know where to check if you need to change something specific. For example, if you want to change the spacing on a Section/Block you go directly to the Sections/Blocks folder. That way, you don’t need to search in the folder to find the class in a file.

Facilitation

When the code is structured, the processes are promptly facilitated. They are streamlined and every segment of the code has their own place.

Final Words

Organizing code is essential for developers and together with all other skills, it is the most effective way to improve the functioning of the site. And even though there are multiple ways of organisation and different strategies, opting for simplicity helps you avoid the dangerous pitfalls. And finally, there is no right or wrong choice since everything depends on the developer’s work strategies.

 

Featured image via Reshot.

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Source de l’article sur Webdesignerdepot

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How to Prioritize Speed with a Mobile-First Design

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By the end of the year, the number of global smartphone users is expected to reach 3.5 billion. That’s a significant 9.3% increase over the last 12 months.

In a world where everyone is constantly connected to their mobile devices, it makes sense that web developers and designers would need to consider new rules for how they create engaging experiences. After all, most of us find browsing from our smartphones to be much more convenient than sitting down at a laptop each day.

With a little luck, you’re already taking steps to mobile optimize your website but standards are changing all the time. To make sure your website is up to scratch, here’s your guide to prioritizing your site for mobile, ready for the new year.

Understanding Mobile-First Design

The first step in updating your web design and development principles, is understanding the concept of mobile first design, and how it’s changed.

With a responsive website, you create something that adjusts to the screen size of any device; with a mobile-first site, you’re focusing first-and-foremost on the user experience that people get when they’re on mobile, taking that as your starting point, and building from there. Instead of building your website for the desktop and using mobile as an afterthought, you start with a consideration of mobile.

Even Google is highlighting the demand for this process lately, with the mobile-first indexing algorithm. If you can’t design for mobile-first, then you could risk your clients being unable to rise up the search engine ranks.

So, how do you get started?

1. Start With the Right Tools

Web developers and designers are nothing without a great toolkit.

The good news is that there are solutions out there that can help you to master the right skills for a mobile-focused user experience. For instance, Skeleton is excellent for small-scale projects that require fluid grids and minimal compiling.

Alternatively, Bootstrap can offer a one-size-fits-all solution for the front-end development for mobile devices. There’s a default grid system available, plenty of components, and JavaScript plugins to work with.

With the right tools, you can minimize and prioritize the content that’s most valuable for your website projects. This is crucial for maximizing website speed and creating clarity when it comes to content and imagery.

For instance, check out the ESPN website; it’s split into very easy-to-follow categories of content that are perfect for scrolling on a smartphone. The grid of videos makes it feel like you’re using a tool like YouTube.

2. Prioritize Mobile-First Elements

Once you have the right tools to assist you, it’s time to begin building your mobile-first website from the ground up. Rather than jumping straight into considerations of the latest design trends, it’s important to start with the foundations.

For instance, navigation within a mobile page is usually hidden under a hamburger button. However, you can take this concept to the next level too. For example, the Shojin mobile website only demonstrates the most important website options within the navigation bar to avoid overwhelming users.

The key here is to keep things as simple as possible, without restricting what your audience can do when they visit your website. Although you want to keep the number of interactive elements on your site small, you also need to ensure that those elements are easy to find and use.

All buttons and CTAs should be clear and tappable. Fonts need to be large enough to read from any screen, and your navigation system needs to be 100% simple, without slowing anything down.

On average, we recommend making all clickable elements at least 48 pixels in height.

3. Use Responsive Imagery and SVGs

Images are a crucial part of any website. They add context and appeal to your design. However, they can also seriously slow down your website if you’re not careful.

Remember, different devices have different demands when it comes to imagery. A desktop page may need a 1200px wide image, while a mobile-only needs the image to be 400px wide at most. The old way of making your images work was to load a large resolution image and use the same file on every platform. Unfortunately, this slows downloading time significantly.

Instead, it’s better to have at least two different versions of the same image for your mobile and desktop solutions. You can also consider SVG.

SVGs are incredibly scalable – more so than bitmaps. With SVG, you can ensure any icon or graphic continues to look sharp and clickable across all devices. Because these files are often smaller, your site loads quicker too! Hubspot is great at using SVGs.

Intricate illustrations are a massive component of HubSpot’s brand. If those images were saved as PNGs or other alternative files, then they would take forever to load. Because they’re all SVGs, you can enjoy the same consistent experience across desktop and mobile.

4. Get the Typography Right

It’s not just the big graphics and images that make a huge difference to your website when it comes to mobile-first design. You also need to think about the legibility and clarity of your website across all devices and platforms. If people can’t read the value proposition of the company that you’re designing for, you’re going to have a major problem.

Focus on making your content as easy to read as possible. Look into the typefaces that seem most appealing on a range of devices.

Remember to balance the body and heading font sizes for the device size too. You’ll need to ensure that the experience feels consistent and smooth as your users scroll through each page. Just take a look at the mobile version of the IMPACT website, for instance.

The headings aren’t as huge as they are on the desktop version of the website, and they’re displayed below, rather than above the featured image. However, this helps to give a more immediately eye-catching and structured experience to mobile users.

There’s even a handy “Search Engine Optimization” tag included, that users can click on if they want to find more related articles.

When it comes to typography, remember that it’s not just size and clarity that matter, but how things are structured throughout your website too. Your type should naturally guide your visitors along the page.

5. Master Available Device Features

Finally, on smartphones, you can accomplish a range of amazing things that you might not be able to do when using a desktop device. Your users can make calls, open apps, send messages, and more, all from within their mobile browser. They can also move their smartphone around a room, taking advantage of concepts like AR and VR.

Taking advantage of the unique capabilities that smartphone design can offer gives you a chance to get unique with your user experience.

Making the most of the mobile experience can be much simpler than you’d think. For instance, on a desktop site, you could list your phone number on a contact page. On a mobile site, the number can begin a call when clicked. You can also take the same approach with email addresses, and social media icons too.

Depending on how experimental you feel, there’s also plenty of opportunities to go above and beyond with your mobile features. You may decide to create a mobile app version of a website that your customers can download onto their phones.

Alternatively, you can look into things like AR technology. This could allow your users to practice placing items of furniture that they may be thinking of buying from an online retailer into their house, so they can see how well they work with their other interior design choices.

Making the Most of Mobile-First Design

Ultimately, having a responsive website that works on both mobile and desktop devices is mandatory in the modern world. However, going above and beyond with mobile-first design is a great way to get ahead of the game.

If you can focus on building a website that puts the experiences of mobile users first, then you can create something that’s much more likely to grab audience attention and deliver amazing experiences.

If nothing else, showing your clients that you have what it takes to design for mobile is an excellent way to ensure that you can gain as many new project opportunities as possible.

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Source de l’article sur Webdesignerdepot

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How to Optimize a PDF in Java

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As we have discussed before, the PDF is the ideal file format for saving, sharing, and protecting documents, both small and large. Its high compatibility with most Operating Systems makes it popular amongst most users for sharing information with different parties. Furthermore, it provides a more static platform for working with important documents like contracts and manuals, as steps can be taken to prevent any unwanted access or editing to the file. 

With large and highly complex files like this, however, different systems may have difficulty uploading, downloading, and reading the formatting for your document. This can lead to file corruption or increased loading times that can halt productivity. Thus, streamlining large PDF files can greatly benefit organizations that regularly use this format in day-to-day operations. 

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How To Test PDF Files Using Selenium Automation?

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PDF documents are small-sized, highly secure files. Almost all businesses use PDFs for processing their files. The reason being a distinguishing feature of maintaining format regardless of the tool used to access PDF files. It’s no surprise that all our invoices, official documents, contractual documents, boarding pass, bank statements, etc. are usually in PDF format.

Even as developers, we come across scenarios when a PDF file needs to be verified or used to locate certain parts of data. You can either do this manually given that you have loads of time to spare or you opt for automation testing. When it comes to handling tricky components of such files using automation, it might seem a bit too tricky. But that’s not the case. Selenium test automation can make it really easy to test PDF file formats.

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What Is File Integrity Monitoring and How Does It Work?

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With the world changing rapidly the data and the system that controls the data are also changing. At the beginning of the Internet and WWW, the data used to be stored on one’s personal machine, and it was accessed by only the person owning the device.

But now, with thousands of companies working with millions of employees and billions of terabytes of data, it is necessary to control and monitor who is going to access the data and who is going to made changes in it.

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