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Hw0 #164

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4472b79
Prepare to HW0
Sep 26, 2022
1ebc5bb
HWO
Sep 28, 2022
c1a6af0
HW0 Fixed
Sep 29, 2022
705eb9e
HW0 fixed1
Sep 30, 2022
4b6832e
HWO
Oct 1, 2022
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HW0 fixed1
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Anastasiia Iakimova authored and Anastasiia Iakimova committed Sep 30, 2022
commit 705eb9ebacac4e5694899cdc252d6de8bc85cd5b
36 changes: 17 additions & 19 deletions src/main/java/ru/javawebinar/topjava/util/UserMealsUtil.java
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Original file line number Diff line number Diff line change
Expand Up @@ -3,22 +3,25 @@
import ru.javawebinar.topjava.model.UserMeal;
import ru.javawebinar.topjava.model.UserMealWithExcess;

import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.LocalTime;
import java.time.Month;
import java.util.*;
import java.util.stream.Collectors;

import static java.util.stream.Collectors.toMap;

public class UserMealsUtil {
public static void main(String[] args) {
List<UserMeal> meals = Arrays.asList(
new UserMeal(LocalDateTime.of(2020, Month.JANUARY, 30, 10, 0), "Завтрак", 500),
new UserMeal(LocalDateTime.of(2020, Month.JANUARY, 30, 13, 0), "Обед", 1000),
new UserMeal(LocalDateTime.of(2020, Month.JANUARY, 30, 20, 0), "Ужин", 500),
new UserMeal(LocalDateTime.of(2020, Month.JANUARY, 31, 0, 0), "Еда на граничное значение", 100),
new UserMeal(LocalDateTime.of(2020, Month.JANUARY, 31, 10, 0), "Завтрак", 1000),
new UserMeal(LocalDateTime.of(2020, Month.JANUARY, 31, 13, 0), "Обед", 500),
new UserMeal(LocalDateTime.of(2020, Month.JANUARY, 31, 20, 0), "Ужин", 410)
new UserMeal(LocalDateTime.of(2020, Month.MARCH, 30, 10, 0), "Завтрак", 500),
new UserMeal(LocalDateTime.of(2020, Month.MARCH, 30, 13, 0), "Обед", 1000),
new UserMeal(LocalDateTime.of(2020, Month.MARCH, 30, 20, 0), "Ужин", 500),
new UserMeal(LocalDateTime.of(2020, Month.MARCH, 31, 0, 0), "Еда на граничное значение", 100),
new UserMeal(LocalDateTime.of(2020, Month.MARCH, 31, 10, 0), "Завтрак", 1000),
new UserMeal(LocalDateTime.of(2020, Month.MARCH, 31, 13, 0), "Обед", 500),
new UserMeal(LocalDateTime.of(2020, Month.MARCH, 31, 20, 0), "Ужин", 410)
);

List<UserMealWithExcess> mealsToCycles = filteredByCycles(meals,
Expand All @@ -28,38 +31,33 @@ public static void main(String[] args) {
List<UserMealWithExcess> mealsToStreams = filteredByStreams(meals,
LocalTime.of(7, 0), LocalTime.of(12, 0), 2000);
mealsToStreams.forEach(System.out::println);


}

public static List<UserMealWithExcess> filteredByCycles(List<UserMeal> meals, LocalTime startTime, LocalTime endTime, int caloriesPerDay) {
Map<Integer, Integer> mapForCaloriesPerDay = new HashMap<>();
Map<LocalDate, Integer> mapForCaloriesPerDay = new HashMap<>();
for (UserMeal userMealForMap : meals) {
int day = userMealForMap.getDateTime().getDayOfMonth();
mapForCaloriesPerDay.merge(day, userMealForMap.getCalories(), Integer::sum);
LocalDate dateTimeOfMeal = userMealForMap.getDateTime().toLocalDate();
mapForCaloriesPerDay.merge(dateTimeOfMeal, userMealForMap.getCalories(), Integer::sum);
}

List<UserMealWithExcess> userMealWithExcesses = new ArrayList<>();
for (UserMeal userMeal : meals) {
if (TimeUtil.isBetweenHalfOpen(userMeal.getDateTime().toLocalTime(), startTime, endTime)) {
boolean checkedPerDay = (mapForCaloriesPerDay.get(userMeal.getDateTime().getDayOfMonth()) > caloriesPerDay);
boolean checkedPerDay = (mapForCaloriesPerDay.get(userMeal.getDateTime().toLocalDate()) > caloriesPerDay);
UserMealWithExcess element = new UserMealWithExcess(userMeal.getDateTime(), userMeal.getDescription(),
userMeal.getCalories(), checkedPerDay);
userMealWithExcesses.add(element);
}
}
return userMealWithExcesses;
}

public static List<UserMealWithExcess> filteredByStreams(List<UserMeal> meals, LocalTime startTime, LocalTime endTime, int caloriesPerDay) {

Map<Integer, Integer> groupMealsOfDays = new HashMap<>();
meals.forEach(m -> groupMealsOfDays.merge(m.getDateTime().getDayOfMonth(), m.getCalories(), Integer::sum));
Map<LocalDate, Integer> mapForCaloriesPerDay = meals.stream()
.collect(Collectors.toMap(userMeal -> userMeal.getDateTime().toLocalDate(), UserMeal::getCalories, Integer::sum, HashMap::new));

return meals.stream()
.filter(userMeal -> TimeUtil.isBetweenHalfOpen(userMeal.getDateTime().toLocalTime(), startTime, endTime))
.map(userMeal -> (new UserMealWithExcess(userMeal.getDateTime(), userMeal.getDescription(), userMeal.getCalories(),
(groupMealsOfDays.get(userMeal.getDateTime().getDayOfMonth()) > caloriesPerDay))))
(mapForCaloriesPerDay.get(userMeal.getDateTime().toLocalDate()) > caloriesPerDay))))
.collect(Collectors.toList());
}
}