Simple Encoding

Java (Java 8 compatible) program that performs a simple encoding of a large volume of text using Akka Streams.

{"1","2","3","4","5","6","7","8","9","0"}
{"q","w","e","r","t","y","u","i","o","p"}
{"a","s","d","f","g","h","j","k","l",";"}
{"z","x","c","v","b","n","m",",",".","/"}

Horizontal Flip

This transformation will flip all rows of the keyboard horizontally (e.g., the 1 will swap with the 0, the 2 with the 9, etc.)

Vertical Flip

This transformation will flip all columns of the keyboard vertically (e.g., the 1 will swap with the z, the q with the a, the 2 with the x, etc.)

Shift

This transformation should take in an integer N and perform a linear shift of the keyboard. Each key should shift N places to its right if N > 0 (and likewise to the left if N < 0). If a key would move past its current row then it should shift into the row below, and so on. So for example, for N = 5, the last five keys (nm,./ would move into the first 5 places of the top row, the 12345 would move 5 places to the right, 67890 would move to the start of the 2nd row, and so on). Likewise, left-shifting keys past their current rows would shift them back into the row above. Therefore, a single right and a left shift would produce the same keyboard.

Environment Setup

Prerequisites

• Git
• Docker
• Gradle

Build and Test

gradle clean
gradel build

Configuration

The configuration settings input file and encoding technique

• ./sampleFiles/inputSource.txt
• ./sampleFiles/iencoding.txt

• Note: sampleFiles folder is mounted to the docker image. Please modify the above files for changing input text and encoding sequence.

Running

gradle clean
gradle shadowJar
docker-compose up