Silver Bars Marketplace - Live Order Board

an implementation of a Live Order Board for Silver Bars Marketplace has the following functionality:

• register an order.
  • register(order: Order) : userId
• cancel an order.
  • cancel(id: String)
• get summary information of live orders.
  • summary : List<Order>
  • summaryBuy : List<Order>
  • summarySell : List<Order>

Tech Stack

• Kotlin (1.3.41)
• SL4J
• JUnit 4

Technical decisions

• both price and quantity in kg is modeled as a double and no units/measurement system
• different order summary information for BUYs and SELLs and ALL as aggregated
• TDD Applied
• gradle has been used for assembly
• implementation is not synchronized
• orders modeled as final classes
• YAGNI applied

Prerequisites

• Gradle
• JDK8+

Download the app

• git clone git@github.com:eevirgen/sbmp-live-order-board.git

Build the app

• gradle clean build (runs the Unit Tests and and creates the distribution as build/libs/sbmp-live-order-board.jar)

Main class

• com.silverbarsmp.MainKt

Run the app

• gradle run
• or can be done in an IDE
• or can be run by using jar which has been created by build :
  • java -jar build/libs/sbmp-live-order-board.jar

Run the tests only

• to run with the console outputs
  • gradle test
• to run without the console outputs
  • gradle cleanTest