Week streak feature using springboot

To find the current week streak using Java, you can use the LocalDate class from the java.time package to get the current date, and then use the get(ChronoField.ALIGNED_WEEK_OF_YEAR) method to get the current week of the year. You can then compare this value to the previous week’s value to determine if it is a new week or not.

Here’s an example of how you might implement this in code:

Copy codeimport java.time.LocalDate;

public class WeekStreak {
    public static void main(String[] args) {
        LocalDate currentDate = LocalDate.now();
        int currentWeek = currentDate.get(ChronoField.ALIGNED_WEEK_OF_YEAR);
        int previousWeek = currentWeek - 1;
        int streak = 0;
        if (currentWeek == previousWeek) {
            streak++;
        } else {
            streak = 1;
        }
        System.out.println("Current week streak: " + streak);
    }
}

Note : the above example will give you the current week streak, to keep track of the previous week you would need to store the previous week in a variable or in a database and compare it with the current week.

current week streak with springboot

To find the current week streak using Spring Boot, you can use the LocalDate class from the java.time package to get the current date, and then use the get(ChronoField.ALIGNED_WEEK_OF_YEAR) method to get the current week of the year. You can then compare this value to the previous week’s value stored in a database or in a variable to determine if it is a new week or not.

Here’s an example of how you might implement this in a Spring Boot application:

Copy codeimport java.time.LocalDate;
import org.springframework.stereotype.Service;

@Service
public class WeekStreakService {
    private int streak = 0;
    private int previousWeek = -1;
    
    public int getCurrentWeekStreak() {
        LocalDate currentDate = LocalDate.now();
        int currentWeek = currentDate.get(ChronoField.ALIGNED_WEEK_OF_YEAR);
        if(previousWeek == currentWeek){
            streak++;
        }else{
            streak=1;
        }
        previousWeek = currentWeek;
        return streak;
    }
}

You can then inject the WeekStreakService into any other bean, and call the getCurrentWeekStreak() method to get the current week streak.

You can also use a database to store the previous week, so that the streak can be tracked even after the application has been restarted.

Keep in mind that using ChronoField.ALIGNED_WEEK_OF_YEAR will assume that weeks start on Sunday. If you want to use weeks starting on Monday, you should use ChronoField.WEEK_OF_YEAR instead.

what is WeekStreakService

WeekStreakService is a class in the example I provided, that is being used to track the current week streak. It uses the LocalDate class from the java.time package to get the current date and then uses the get(ChronoField.ALIGNED_WEEK_OF_YEAR) method to get the current week of the year. It compares this value to the previous week’s value stored in a variable, to determine if it is a new week or not.

It has a private variable streak to keep track of the current streak and private variable previousWeek to keep track of the previous week. It has a public method getCurrentWeekStreak() which returns the current streak.

By using Spring Boot’s @Service annotation, it indicates that this class is a “Service” and will be managed by the Spring framework. In this way, we can inject the WeekStreakService class into any other Bean, and call the getCurrentWeekStreak() method to get the current week streak.

You can also use a database to store the previous week, so that the streak can be tracked even after the application has been restarted.

write code for WeekStreakService

Here is an example of a WeekStreakService class that tracks the current week streak using Spring Boot and stores the previous week’s value in a database using JPA:

Copy codeimport java.time.LocalDate;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
public class WeekStreakService {
    private final WeekStreakRepository weekStreakRepository;
    private int currentWeek;
    
    public WeekStreakService(WeekStreakRepository weekStreakRepository) {
        this.weekStreakRepository = weekStreakRepository;
    }

    @Transactional
    public int getCurrentWeekStreak() {
        LocalDate currentDate = LocalDate.now();
        currentWeek = currentDate.get(ChronoField.ALIGNED_WEEK_OF_YEAR);
        WeekStreak weekStreak = weekStreakRepository.findById(1L).orElseGet(() -> new WeekStreak(1L,-1));
        if(weekStreak.getPreviousWeek() == currentWeek){
            weekStreak.setStreak(weekStreak.getStreak()+1);
        }else{
            weekStreak.setStreak(1);
        }
        weekStreak.setPreviousWeek(currentWeek);
        weekStreakRepository.save(weekStreak);
        return weekStreak.getStreak();
    }
}

You’ll notice that the class injects a WeekStreakRepository and it uses JPA to interact with the database.

Copy codeimport org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface WeekStreakRepository extends JpaRepository<WeekStreak, Long> {
}

And here is the WeekStreak class, it should have getters and setters for fields streak, previousWeek, id and also a constructor if you are using JPA

Copy codeimport javax.persistence.Entity;
import javax.persistence.Id;

@Entity
public class WeekStreak{
    @Id
    private Long id;
    private int streak;
    private int previousWeek;

    public WeekStreak(Long id, int previousWeek) {
        this.id = id;
        this.previousWeek = previousWeek;
    }
    //getters and setters
}

This example uses the ChronoField.ALIGNED_WEEK_OF_YEAR to determine the current week of the year, which assumes that weeks start on Sunday. If you want to use weeks starting on Monday, you should use ChronoField.WEEK_OF_YEAR instead.

Keep in mind that this is just an example and you may need to adjust it to fit the specific requirements of your application.

Hope this helps!

write logic to store previous week

To store the previous week’s value, you can use a database to persist the value even after the application has been restarted. One way to do this is to use JPA (Java Persistence API) to interact with the database.

Here is an example of how you might implement the logic to store the previous week’s value in a Spring Boot application using JPA:

Copy codeimport java.time.LocalDate;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

@Service
public class WeekStreakService {
    private final WeekStreakRepository weekStreakRepository;
    private int currentWeek;
    
    public WeekStreakService(WeekStreakRepository weekStreakRepository) {
        this.weekStreakRepository = weekStreakRepository;
    }

    @Transactional
    public int getCurrentWeekStreak() {
        LocalDate currentDate = LocalDate.now();
        currentWeek = currentDate.get(ChronoField.ALIGNED_WEEK_OF_YEAR);
        WeekStreak weekStreak = weekStreakRepository.findById(1L).orElseGet(() -> new WeekStreak(1L,-1));
        if(weekStreak.getPreviousWeek() == currentWeek){
            weekStreak.setStreak(weekStreak.getStreak()+1);
        }else{
            weekStreak.setStreak(1);
        }
        weekStreak.setPreviousWeek(currentWeek);
        weekStreakRepository.save(weekStreak);
        return weekStreak.getStreak();
    }
}

You’ll notice that it uses the WeekStreakRepository to find the previous week and it also saves the updated previous week and the current streak in the database.

Here is the WeekStreakRepository class :

Copy codeimport org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

@Repository
public interface WeekStreakRepository extends JpaRepository<WeekStreak, Long> {
}

And here is the WeekStreak class, it should have getters and setters for fields streak, previousWeek, id and also a constructor if you are using JPA

Copy codeimport javax.persistence.Entity;
import javax.persistence.Id;

@Entity
public class WeekStreak{
    @Id
    private Long id;
    private int streak;
    private int previousWeek;

    public WeekStreak(Long id, int previousWeek) {
        this.id = id;
        this.previousWeek = previousWeek;
    }
    //getters and setters
}

This example uses the ChronoField.ALIGNED_WEEK_OF_YEAR to determine the current week of the year, which assumes that weeks start on Sunday. If you want to use weeks starting on Monday, you should use ChronoField.WEEK_OF_YEAR instead.

Keep in mind that this is just an example and you may need to adjust it to fit the specific requirements of your application.

Hope this helps!

//WeekStreak Entity
@Entity
public class WeekStreak{
@Id
private Long id;
private int streak;
private int previousWeek;

public WeekStreak(Long id, int previousWeek) {
    this.id = id;
    this.previousWeek = previousWeek;
}
//getters and setters

}

// WeekStreak Repository
@Repository
public interface WeekStreakRepository extends JpaRepository {
}

// WeekStreak Service
@Service
public class WeekStreakService {
private final WeekStreakRepository weekStreakRepository;
private int currentWeek;

public WeekStreakService(WeekStreakRepository weekStreakRepository) {
    this.weekStreakRepository = weekStreakRepository;
}

@Transactional
public int getCurrentWeekStreak() {
    LocalDate currentDate = LocalDate.now();
    currentWeek = currentDate.get(ChronoField.ALIGNED_WEEK_OF_YEAR);
    WeekStreak weekStreak = weekStreakRepository.findById(1L).orElseGet(() -> new WeekStreak(1L,-1));
    if(weekStreak.getPreviousWeek() == currentWeek){
        weekStreak.setStreak(weekStreak.getStreak()+1);
    }else{
        weekStreak.setStreak(1);
    }
    weekStreak.setPreviousWeek(currentWeek);
    weekStreakRepository.save(weekStreak);
    return weekStreak.getStreak();
}

}