Package dev.karlkadak.backend.service

Class WeatherDataImporter

java.lang.Object

dev.karlkadak.backend.service.WeatherDataImporter

@Service
public class WeatherDataImporter
extends Object

Used for importing weather data to the database from OpenWeather API
Also logs the results of imports using Logger

Field Summary

Fields

Modifier and Type	Field	Description
private String	apiKey	API key gathered from application.properties which is used for accessing the OpenWeather API
private final CityRepository	cityRepository
private final Logger	logger
private final com.fasterxml.jackson.databind.ObjectMapper	objectMapper
private final org.springframework.web.client.RestTemplate	restTemplate
private final WeatherDataRepository	weatherDataRepository

Constructor Summary

Constructors

Constructor	Description
WeatherDataImporter(WeatherDataRepository weatherDataRepository, CityRepository cityRepository, Logger logger, org.springframework.web.client.RestTemplate restTemplate, com.fasterxml.jackson.databind.ObjectMapper objectMapper)

Method Summary

Modifier and Type	Method	Description
void	defaultImport()	Fetches the weather data of all City objects which have importingData set as TRUE and saves it to the database
protected void	fetchAndSave(City city)	Fetches the weather data of the specified City and saves it to the database
private WeatherData	requestData(City city)	Requests and returns the weather data of the specified city

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

weatherDataRepository

private final WeatherDataRepository weatherDataRepository

cityRepository

private final CityRepository cityRepository

logger

private final Logger logger

restTemplate

private final org.springframework.web.client.RestTemplate restTemplate

objectMapper

private final com.fasterxml.jackson.databind.ObjectMapper objectMapper

apiKey

@Value("${openweather.api.key}")
private String apiKey

API key gathered from application.properties which is used for accessing the OpenWeather API

Constructor Details

WeatherDataImporter

@Autowired
public WeatherDataImporter(WeatherDataRepository weatherDataRepository,
 CityRepository cityRepository,
 Logger logger,
 org.springframework.web.client.RestTemplate restTemplate,
 com.fasterxml.jackson.databind.ObjectMapper objectMapper)

Method Details

defaultImport

public void defaultImport()

Fetches the weather data of all City objects which have importingData set as TRUE and saves it to the database

fetchAndSave

protected void fetchAndSave(City city)

Fetches the weather data of the specified City and saves it to the database

Parameters:

city - City to fetch weather data about

requestData

private WeatherData requestData(City city)
                         throws com.fasterxml.jackson.core.JsonProcessingException

Requests and returns the weather data of the specified city

Parameters:

city - City to fetch weather data about

Returns:

WeatherData about the specified City

Throws:

com.fasterxml.jackson.core.JsonProcessingException - in case of API response processing error