HW0_stream

.gitignore

@@ -3,6 +3,8 @@ out
 target
 *.iml
 log
+*.patch
+patch
 
 
 

pom.xml

@@ -24,7 +24,7 @@
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
                 <artifactId>maven-compiler-plugin</artifactId>
-                <version>3.7.0</version>
+                <version>3.8.1</version>
                 <configuration>
                     <source>${java.version}</source>
                     <target>${java.version}</target>

src/main/java/ru/javawebinar/topjava/model/UserMeal.java → src/main/java/ru/javawebinar/topjava/model/Meal.java

@@ -1,15 +1,17 @@
 package ru.javawebinar.topjava.model;
 
+import java.time.LocalDate;
 import java.time.LocalDateTime;
+import java.time.LocalTime;
 
-public class UserMeal {
+public class Meal {
     private final LocalDateTime dateTime;
 
     private final String description;
 
     private final int calories;
 
-    public UserMeal(LocalDateTime dateTime, String description, int calories) {
+    public Meal(LocalDateTime dateTime, String description, int calories) {
         this.dateTime = dateTime;
         this.description = description;
         this.calories = calories;
@@ -26,4 +28,12 @@ public String getDescription() {
     public int getCalories() {
         return calories;
     }
+
+    public LocalDate getDate() {
+        return dateTime.toLocalDate();
+    }
+
+    public LocalTime getTime() {
+        return dateTime.toLocalTime();
+    }
 }

src/main/java/ru/javawebinar/topjava/model/MealTo.java

@@ -0,0 +1,30 @@
+package ru.javawebinar.topjava.model;
+
+import java.time.LocalDateTime;
+
+public class MealTo {
+    private final LocalDateTime dateTime;
+
+    private final String description;
+
+    private final int calories;
+
+    private final boolean excess;
+
+    public MealTo(LocalDateTime dateTime, String description, int calories, boolean excess) {
+        this.dateTime = dateTime;
+        this.description = description;
+        this.calories = calories;
+        this.excess = excess;
+    }
+
+    @Override
+    public String toString() {
+        return "MealTo{" +
+                "dateTime=" + dateTime +
+                ", description='" + description + '\'' +
+                ", calories=" + calories +
+                ", excess=" + excess +
+                '}';
+    }
+}

src/main/java/ru/javawebinar/topjava/util/MealsUtil.java

@@ -0,0 +1,43 @@
+package ru.javawebinar.topjava.util;
+
+import ru.javawebinar.topjava.model.Meal;
+import ru.javawebinar.topjava.model.MealTo;
+
+import java.time.LocalDate;
+import java.time.LocalDateTime;
+import java.time.LocalTime;
+import java.time.Month;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Map;
+import java.util.stream.Collectors;
+
+public class MealsUtil {
+    public static void main(String[] args) {
+        List<Meal> meals = Arrays.asList(
+                new Meal(LocalDateTime.of(2015, Month.MAY, 30, 10, 0), "Завтрак", 500),
+                new Meal(LocalDateTime.of(2015, Month.MAY, 30, 13, 0), "Обед", 1000),
+                new Meal(LocalDateTime.of(2015, Month.MAY, 30, 20, 0), "Ужин", 500),
+                new Meal(LocalDateTime.of(2015, Month.MAY, 31, 10, 0), "Завтрак", 1000),
+                new Meal(LocalDateTime.of(2015, Month.MAY, 31, 13, 0), "Обед", 500),
+                new Meal(LocalDateTime.of(2015, Month.MAY, 31, 20, 0), "Ужин", 510)
+        );
+        List<MealTo> mealsWithExcess = getFilteredWithExcess(meals, LocalTime.of(7, 0), LocalTime.of(12, 0), 2000);
+        mealsWithExcess.forEach(System.out::println);
+    }
+
+    public static List<MealTo> getFilteredWithExcess(List<Meal> meals, LocalTime startTime, LocalTime endTime, int caloriesPerDay) {
+        Map<LocalDate, Integer> caloriesSumByDate = meals.stream()
+                .collect(
+                        Collectors.groupingBy(Meal::getDate, Collectors.summingInt(Meal::getCalories))
+//                      Collectors.toMap(Meal::getDate, Meal::getCalories, Integer::sum)
+                );
+
+        return meals.stream()
+                .filter(meal -> TimeUtil.isBetween(meal.getTime(), startTime, endTime))
+                .map(meal ->
+                        new MealTo(meal.getDateTime(), meal.getDescription(), meal.getCalories(),
+                                caloriesSumByDate.get(meal.getDate()) > caloriesPerDay))
+                .collect(Collectors.toList());
+    }
+}