package org.anil.service;

import java.util.ArrayList;

import java.util.HashMap;

import java.util.List;

import org.anil.bean.Employee;

public class EmployeeService {

static HashMap<Integer, Employee> employeeIdMap = getEmployeeIdMap();

public EmployeeService() {

super();

if (employeeIdMap == null) {

employeeIdMap = new HashMap<Integer, Employee>();

// Creating some object of Employees while initializing

Employee anilEmployee = new Employee(1, "Anil", "anil@gmail.com", 614943939);

Employee chandraEmployee = new Employee(2, "Anil", "anil@gmail.com", 614943939);

Employee venuEmployee = new Employee(3, "Anil", "anil@gmail.com", 614943939);

Employee dhanaEmployee = new Employee(4, "Anil", "anil@gmail.com", 614943939);

employeeIdMap.put(1, anilEmployee);

employeeIdMap.put(2, chandraEmployee);

employeeIdMap.put(3, venuEmployee);

employeeIdMap.put(4, dhanaEmployee);

}

}

public List<Employee> getAllEmployees() {

List<Employee> employees = new ArrayList<Employee>(employeeIdMap.values());

return employees;

}

public Employee getEmployee(int id) {

Employee employee = employeeIdMap.get(id);

return employee;

}

public Employee addEmployee(Employee employee) {

employee.setId(employeeIdMap.size() + 1);

employeeIdMap.put(employee.getId(), employee);

return employee;

}

public Employee updateEmployee(Employee employee) {

if (employee.getId() <= 0)

return null;

employeeIdMap.put(employee.getId(), employee);

return employee;

}

public void deleteEmployee(int id) {

employeeIdMap.remove(id);

}

public static HashMap<Integer, Employee> getEmployeeIdMap() {

return employeeIdMap;

}

}