feat: File processing.

This commit is contained in:
Piotr Dec 2024-07-18 02:51:18 +02:00
parent f0b7096865
commit 2025cca693
Signed by: stawros
GPG key ID: F89F27AD8F881A91
9 changed files with 162 additions and 0 deletions

View file

@ -0,0 +1,33 @@
package eu.ztsh.lfr.model;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.stream.Collectors;
public class Temperatures extends ConcurrentHashMap<String, ConcurrentMap<Integer, YearDataAccumulator>> {
public void addData(DataRow dataRow) {
putIfAbsent(dataRow.city(), new ConcurrentHashMap<>());
var city = get(dataRow.city());
city.putIfAbsent(dataRow.year(), new YearDataAccumulator());
city.get(dataRow.year()).add(dataRow.temperature());
}
public Averages getAverages() {
var computed = entrySet().stream()
.map(entry -> {
var newEntry = entry.getValue().entrySet().stream()
.map(yearEntry -> {
var average = new Average();
average.setYear(yearEntry.getKey().toString());
average.setAverageTemperature(yearEntry.getValue().getAverage());
return average;
})
.toList();
return Map.entry(entry.getKey(), newEntry);
}).collect(Collectors.toMap(Map.Entry::getKey, Map.Entry::getValue));
return new Averages(computed);
}
}