Java函数式编程在数据清洗与转换中的最佳实践

{
  "id": "1234",
  "name": "John Doe",
  "email": "johndoe@example.com",
  "phone": null,
  "address": "123 Main Street, Anytown, CA 12345"
}

// 获取客户对象
Customer customer = new Customer();
customer.setId("1234");
customer.setName("John Doe");
customer.setEmail("johndoe@example.com");
customer.setPhone(null);
customer.setAddress("123 Main Street, Anytown, CA 12345");

Customer customer = Customer.of()
    .id("1234")
    .name("John Doe")
    .email("johndoe@example.com")
    .phone((String) null)
    .address("123 Main Street, Anytown, CA 12345");

List<Customer> customers = new ArrayList<>();
for (Object line : lines) {
  Customer customer = Customer.of();
  customer.setId(line.getString("id"));
  customer.setName(line.getString("name"));
  customer.setEmail(line.getString("email"));
  if (line.has("phone")) {
    customer.setPhone(line.getString("phone"));
  }
  customer.setAddress(line.getString("address"));
  customers.add(customer);
}

List<Customer> customers = lines.map(Customer.fromLine())
    .toList();