Given five files,

• EmployeeController.java
• EmployeeRepository.java
• EmployeeJpaService.java
• EmployeeJpaRepository.java
• Employee.java

And also given a database file employees which contains the EMPLOYEELIST table.

EMPLOYEELIST Table

Columns	Type
employeeId	INTEGER
employeeName	TEXT
email	TEXT
department	TEXT

Use only `employeelist` as the table name in both query writing and in the model class within your code.

Completion Instructions

• Employee.java: Employee class should contain the following attributes.

  Attribute	Type
  employeeId	int
  employeeName	String
  email	String
  department	String

• EmployeeRepository.java: Create an interface containing the required methods.

• EmployeeJpaService.java: Update the service class with logic for managing employee data.

• EmployeeController.java: Create the controller class to handle HTTP requests.

• EmployeeJpaRepository.java: Create an interface that extends the JpaRpository Interface.

Implement the following APIs.

API 1

Path: /employees

Method: GET

Description:

Returns a list of all employees in the employeeList.

Response

[
    {
        "employeeId": 1,
        "employeeName": "John Doe",
        "email": "johndoe@example.com",
        "department": "Marketing"
    },
   ...
]

API 2

Path: /employees

Method: POST

Description:

Creates a new employee in the employeeList. The employeeId is auto-incremented.

Request

{
    "employeeName": "Henry Nicholas",
    "email": "henrynicholas@example.com",
    "department": "IT"
}

Response

{
    "employeeId": 7,
    "employeeName": "Henry Nicholas",
    "email": "henrynicholas@example.com",
    "department": "IT"
}

API 3

Path: /employees/{employeeId}

Method: GET

Description:

Returns an employee details based on the employeeId. If the given employeeId is not found in the employeeList, raise ResponseStatusException with HttpStatus.NOT_FOUND.

Success Response

{
    "employeeId": 2,
    "employeeName": "Jane Smith",
    "email": "janesmith@example.com",
    "department": "Human Resources"
}

API 4

Path: /employees/{employeeId}

Method: PUT

Description:

Update the details of an employee in the employeeList based on the employeeId and return the updated employee details. If the given employeeId is not found in the employeeList, raise ResponseStatusException with HttpStatus.NOT_FOUND.

Request

{
    "employeeName": "Steve Smith",
    "email": "stevesmith@example.com"
}

Success Response

{
    "employeeId": 2,
    "employeeName": "Steve Smith",
    "email": "stevesmith@example.com",
    "department": "Human Resources"
}

API 5

Path: /employees/{employeeId}

Method: DELETE

Description:

Deletes an employee from the employeeList based on the employeeId. If the given employeeId is not found in the employeeList, raise ResponseStatusException with HttpStatus.NOT_FOUND.

Do not modify the code in EmployeeApplication.java

Do not modify anything in the application.properties file

Do not add any SQL files