akadir / case-study

Java console application that implements given case study

case-study

Java implementation of shopping cart case study

Content

• Run
  • Using Maven
  • Using Docker
• UML class diagram
• Applied Design Patterns
• Pipeline Definitions
• Used Tools, Frameworks, Libraries etc.

Run

Using Maven

Make sure you have maven installed on your system.

git clone https://github.com/akadir/case-study.git
cd case-study
mvn package -DskipTests
java -jar target/case-study.jar

Using Docker

Pull the latest image from docker-hub and then run it.

docker pull akarakoc/case-study:1.0
docker run akarakoc/case-study:1.0

UML class diagram

Applied Design Patterns

• Chain of Responsibility: To validate products added into cart. This pattern, makes it easy to extend and re-configure validation phase. CartEventValidator
• Strategy Pattern: Delivery cost calculation algorithms can changed in time frequently. Using this pattern makes it easy to adapt this algorithm changes. DeliveryStrategy
• Null Object Pattern: In the initial phase of the ShoppingCart DeliveryStrategy is not set yet. This may lead to a NullPointerException. To prevent this from occurring, None DeliveryStrategy is implemented.

Pipeline Definitions

All action logs can be seen from this link and action definitions are in this folder

• Every push that contains change in specific folders and/or files triggers two actions, build, and code quality.

  • Build Action builds source code on 3 different Operating Systems[Ubuntu, MacOS, Windows] using 3 different java versions[8, 11, 14].

• Every tagged push event triggers the docker workflow and this workflow builds artifacts then push the docker image to the docker hub

Developed with the Help of

• IntelliJ IDEA - Development environment
• maven - Build automation and dependency management tool.
• logback - Logging library that implements SLF4J API
• mockito - Testing framework to mock objects.
• AssertJ - Rich and easy to use test assertion library
• Docker - Containerisation tool
• SonarCloud - Online Code Quality & Security service
• GitHub Actions - Software workflow automation tool
• gitignore.io - Utility website to generate .gitignore files