This project is used to read the csv file

• Using java 11 or higher, please ensure you already installed jdk & jre 11.
• Using maven as package manager tool, please ensure you already installed maven.

• Build a csv java parser

• Due to the question statement does not mention how does how input file look like and how expected output look like all data model are design as a Map instead of map it to fixed java bean.
• Assume that the first line of csv are the header and split by ","
• We can support new type of reader (TxtReader for instance) by implement the interface ISourceReader and add it to SourceReaderFactory
• The max file size is 1 MB or (1024 * 1024) bytes
• The output extract result look like as below:

Example:

{
  "error": {},
  "headerIndexMap": {
    "PHONE_NUMBER": 0,
    "Name": 1,
    "Age": 2
  },
  "data": {
    "2": {
      "PHONE_NUMBER": "0987000001",
      "Age": "14",
      "Name": "tester One"
    },
    "3": {
      "PHONE_NUMBER": "0987000002",
      "Age": "13",
      "Name": "tester two"
    },
    "4": {
      "PHONE_NUMBER": "0987000003",
      "Age": "12",
      "Name": "tester three"
    },
    "5": {
      "PHONE_NUMBER": "0987000004",
      "Age": "11",
      "Name": "tester four"
    },
    "6": {
      "PHONE_NUMBER": "0987000005",
      "Age": "10",
      "Name": "tester five"
    }
  }
}

• Before starting , please run mvn clean install

• The project can be start in Main.java in src/main/java/com/hometest/readcsv/Main.java and check the console to see the output printed

• The code is tested in test package in src/test/java/come/hometest

• It's developed on MacOs Montery version 12.2.1 with IntelliJ IDE.