JoΓ£o Filipe Sabino Esperancinha (@jesperancinha)
github

jesperancinha

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Top repositories

1

good-story

An investigation and comparison between Kotlin and Java on an engineering level. Since beauty is in the eye of the beholder, this repository is not meant to evaluate Java or Kotlin on an aesthetic level.
Kotlin
22
star
2

concert-demos-root

This project is built in order to compare and illustrate differences between MVC and Reactive Web design patterns.
Kotlin
7
star
3

vma-archiver

Video Media Archiver
Kotlin
6
star
4

whiskers-kotlin-native

This is a set of command line elements that we can run and install in our system created in Kotlin and Generated using the Kotlin Native compiler
Kotlin
6
star
5

staco-app

This application is made as a DEMO to illustrate the use of localstack as a possible way to efficiently learn how the AWS ecosystem works
Kotlin
5
star
6

video-series-app

This is an example project to to offer you a very simple example of a CQRS architecture.
Kotlin
4
star
7

moving-objects-service-root

The goal of this mini-project is to introduce you to two important monitoring tools in the software landscape These are prometheus and grafana. In this project you will find implementations using micrometer and a store for metrics
TypeScript
4
star
8

your-finance-je

Using JWT in KumuluzEE. Two solutions are provided to understand how simple the JWT authentication/authorization system actually is.
Kotlin
4
star
9

markdowner

Markdowner is a parser project exclusively made for mardown files.
Kotlin
3
star
10

bridges-surveillance-story

This application uses event sourcing to serve the logistics for a bridge management system.
Kotlin
3
star
11

project-signer

Project Signer
Kotlin
3
star
12

sea-shell-archiver

This is web application made specifically to study a reactive archiitectur.
Kotlin
3
star
13

jeorg-kotlin-test-drives

Kotlin studies. Includes Project Arrow, Kotlin Coroutines, Flows and More
Kotlin
3
star
14

json-to-builder-pattern

Interprets a json string object and creates a builder based on the Java builder pattern
Kotlin
3
star
15

advanced-library-management

Using Resilience4J, this is a Demo project which uses a Library as background and manages all its requests. This library can rent books online and the usage rate is extremely high. There is a reactive way to access, which is the one normally used, but sometimes, the system needs a bit of help from an old machine running a non-reactive MVC Spring application using JPA. Let's make this in Kotlin and find the best solution!
Kotlin
3
star
16

jeorg-spring-test-drives

This project is intended as a study tool for the Spring Framework. This includes Spring and Spring Boot. It includes Java and Kotlin implementations. It is also a source of Mockk, Kotest and Jupiter 5 combined examples.
Java
3
star
17

news-cast-explorer

This project explores the saga architecture for two patterns. The Choreograhy and the Orchestration
Kotlin
3
star
18

jeorg-security-defense-test-drives

The goal of this repository is to create a tool which users can install as a service and with that, have their phishing emails automatically sent to whatever user map them to. I will only make an official release of this when I'm absolutely sure of a couple of things. One is that the wrong mail doesn't get emailed to a phishing reporting service and make sure that to the best of my knowledge, the phishing emails are reported by the minute you receive them. This will give pirates and hackers a lot less time be able to escape. All of this comfortably knowing that no script will be run from the emails received.
HTML
3
star
19

healthy-cameras

Demo on Kong in a system where several cameras watch over a building and we need to constantly monitor their statuses
TypeScript
3
star
20

asnsei-the-right-waf

This repo is the initial repository for all my talks drafts. Everything begin with a sketch and this repo is super experimental and comprises of several technologies
Kotlin
2
star
21

performance-parsers

This project is to analyse different ways to parse and run through the three most common ways of exchanging message through the network.
Kotlin
2
star
22

mancalaje

MancalaJE
Kotlin
2
star
23

kitten-house-care-parent

Kotlin
2
star
24

jesperancinha

2
star
25

performance-projects

Kotlin
2
star
26

inner-text-searcher-go

Shell
2
star
27

catcher-app-android

Java
2
star
28

buy-odd-yucca-concert

Study of the Kong Framework
Kotlin
2
star
29

favourite-lyrics-app

Favorite lyrics is a project exploring Hexagonal Architecture.
Kotlin
2
star
30

jeorg-algorithms-test-drives

Algorithm Study Project in different languages
Kotlin
2
star
31

from-paris-to-berlin-circuit-breaker

This project is an investigation of Hystrix in the Kotlin language
Kotlin
2
star
32

jeorg-spring-master-test-drives

Spring Master 5 Test Drives is a repo about studying the Spring Framework in depth.
Java
2
star
33

finantial-transactions-akka

Scala
2
star
34

rockstars-manager

This simple project is a website to manage Rockstars
Kotlin
2
star
35

sound-garage

A JAVA project that explores sound management
Java
2
star
36

images-go

This library is to give support to image handling for the GoLang projects in Steelzack-Go
Go
2
star
37

image-train-filters-web

This is an Image transformation webservice where we can see 3 algorithms performing updates on images. It implements a contour for images, the Kuwahara blur filter and finally an algorithm I made myself called chartizate. The latter creates images where the foreground is written text.
Scala
2
star
38

multi-image-comparer

Implements most common used methods for image comparison with the goal of making a case study between the different proposed algorithms
Go
2
star
39

med_dicom_service

A simple service to load, store and display dicom tags for different files
Python
2
star
40

radioactive-narwhals-shop

This repo wants to show examples of how sequences can be used and how code can be made clean and readable using extension functions. It also tries to unlock the misconceptions about the usages of BigDecimals and how solutions like using Long everywhere may not be the best possible option.
Kotlin
2
star
41

security-test-drives

A project to study known vulnerabilities
Python
1
star
42

matrix-anywhere-android

Kotlin
1
star
43

library-books

Book searcher
Kotlin
1
star
44

jeorg-scala-test-drives

Study project on all things scala related
Scala
1
star
45

car-lease

Kotlin
1
star
46

rust-test-drive

Just a rust test drive project that maybe turns out to be a great project
Rust
1
star
47

coffee-paradigms

The goal of this project is to simulate multiple people using coffee machines throughout a specific period of the day. This is not a game, but only a configurable simulator which will allow you to calculate how long fellow employees and colleagues can take to have coffee.
Kotlin
1
star
48

web-parser-csv

Web parser. Part of an old project of my archive. It's still in the making and checkin in it's raw left status
PHP
1
star
49

base-converter-android

Java
1
star
50

orbit-simulator

Java
1
star
51

ping-app-android

It just pings! But it will do more
Kotlin
1
star
52

math-service-scala

Scala
1
star
53

airflights-clojure

Experimental project to understand Clojure using airflights as a theme
Clojure
1
star
54

image-train-filters-android

Image train filters for android
Java
1
star
55

OSSRH-51043

1
star
56

project-armona

1
star
57

buy-odd-polymer

HTML
1
star
58

test-drives

Support repository for mini-blogs, mini-posts, mini-articles for my website @ http://joaofilipesabinoesperancinha.nl.
1
star
59

jeorg-camel-test-drives

Camel Test Drives Project
Kotlin
1
star
60

jeorg-vertex-osgi-testdrives

Kotlin
1
star
61

airports-app

Kotlin
1
star
62

jeorg-jdk-test-drives

A selection of test modules for the JDK
Java
1
star
63

math-lib

Just a math repository with independent libraries to support different mathematical operations in math
Java
1
star
64

kart-races

Made long time ago. Status is under construction
Java
1
star
65

string.distance

Library to support distances between strings according to several algorithms
Go
1
star
66

image-sizer

This is a small command line project to allow quick command line resizing of images without the need of a graphics interface
Kotlin
1
star
67

timezone-app-utility-android

Java
1
star
68

jeorg-micro-test-drives

Arduino files
Python
1
star
69

jeorg-android-test-drives

Test drive for android
Java
1
star
70

goblins-tale-strongswordfell

Shell
1
star
71

xml-adder

This is a small program to find specific elements, attributes or nodes defined by a set of xpath instructions to which a set of attributes or nodes can be specified to be automatically added
Kotlin
1
star
72

isbn-stacks

Worldwide, the ISBN number is used. It is a massive collection of numbers which uniquely identify books per type and edition. Based on that, this project is here to evaluate the recent experimental project from the spring team called Spring-FU. As DSL that, when released, it will allow Spring applications to be developed without the use of annotations. The main argument is that annotations bring unnecessary overhead to the application and that processing time can be avoided.
Makefile
1
star
73

note-manager-app

A note manager application that implements a search engine for story telling texts. It feeds a UI and the idea is to show how can we, with Arrow, use its benefits to create a more robust, resilient, back-pressure resistent, innovative application with support for high capacity and high availability.
Kotlin
1
star
74

string-array-paradigms

This project is a performance study of how REGEX can work better or worse considering different cases. It is called string array paradigms because it actually studies Strings and Arrays in a very deep level.
Kotlin
1
star
75

public-transport-declarer

A public transport declaration calculator. It is used to automatically filter out all relevant travelling segments when travelling with a general public transport card. It receives a PDF file as an input and generates a CSV file with the results as Local Date / Complete value.
Kotlin
1
star
76

jeorg-java-ee-test-drives

Java Studies from Java SE 17 and JEE 8
Kotlin
1
star
77

jeorg-cloud-test-drives

Study project for all things cloud. Spin-offs will happen when detailing
1
star