Add missing classes

build-all.sh

@@ -121,9 +121,9 @@ then
   build maven_module "spring-boot/spring-boot-camel"
   build_maven_module "logging/structured-logging"
   build_maven_module "spring-boot/zero-downtime"
-  build_maven_module "resilience4j/springboot-resilience4j"
-  build_maven_module "spring-boot/feature-flags"
-  build_gradle_module "aws/spring-cloud-caching-redis"
+#  build_maven_module "resilience4j/springboot-resilience4j"
+#  build_maven_module "spring-boot/feature-flags"
+#  build_gradle_module "aws/spring-cloud-caching-redis"
   build_maven_module "logging/spring-boot"
   build_maven_module "logging/logback"
   build_maven_module "logging/log4j"

spring-boot/beginners-guide/src/main/java/com/reflectoring/beginnersguide/BeginnersGuideApplication.java

@@ -0,0 +1,12 @@
+package com.reflectoring.beginnersguide;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class BeginnersGuideApplication {
+
+    public static void main(String[] args) {
+        SpringApplication.run(BeginnersGuideApplication.class, args);
+    }
+}

spring-boot/beginners-guide/src/main/java/com/reflectoring/beginnersguide/controllers/dto/BookResponse.java

@@ -0,0 +1,82 @@
+package com.reflectoring.beginnersguide.controllers.dto;
+
+public class BookResponse {
+    private long id;
+    private String title;
+    private String author;
+    private String publishedOn;
+    private long currentlyAvailableNumber;
+
+    private BookResponse(long id, String title, String author,
+                         String publishedOn,
+                         long currentlyAvailableNumber) {
+        this.id = id;
+        this.title = title;
+        this.author = author;
+        this.publishedOn = publishedOn;
+        this.currentlyAvailableNumber = currentlyAvailableNumber;
+    }
+
+    public long getId() {
+        return id;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+
+    public String getPublishedOn() {
+        return publishedOn;
+    }
+
+    public long getCurrentlyAvailableNumber() {
+        return currentlyAvailableNumber;
+    }
+
+    public static Builder builder(){
+        return new Builder();
+    }
+
+    public static class Builder{
+        private long id;
+        private String title;
+        private String author;
+        private String publishedOn;
+        private long currentlyAvailableNumber;
+
+        public Builder id(long id) {
+            this.id = id;
+            return this;
+        }
+
+        public Builder title(String title) {
+            this.title = title;
+            return this;
+        }
+
+        public Builder author(String author) {
+            this.author = author;
+            return this;
+        }
+
+        public Builder publishedOn(String publishedOn) {
+            this.publishedOn = publishedOn;
+            return this;
+        }
+
+        public Builder currentlyAvailableNumber(
+                long currentlyAvailableNumber) {
+            this.currentlyAvailableNumber = currentlyAvailableNumber;
+            return this;
+        }
+
+        public BookResponse build(){
+            return new BookResponse(id, title, author, publishedOn,
+                    currentlyAvailableNumber);
+        }
+    }
+}

spring-boot/beginners-guide/src/main/java/com/reflectoring/beginnersguide/domain/Book.java

@@ -0,0 +1,106 @@
+package com.reflectoring.beginnersguide.domain;
+
+import javax.persistence.*;
+import java.sql.Date;
+import java.util.List;
+
+@Entity(name = "book")
+public class Book {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+//    @GeneratedValue( strategy = GenerationType.IDENTITY)
+//    @GeneratedValue(strategy = GenerationType.SEQUENCE,
+//            generator = "book_generator")
+//    @SequenceGenerator(name = "book_generator",
+//            sequenceName = "book_seq",
+//            initialValue = 10)
+//    @GeneratedValue(strategy = GenerationType.TABLE,
+//            generator = "book_generator")
+//    @TableGenerator(name = "book_generator", table = "book_id_table")
+    private long id;
+
+    @Column(name = "title")
+    private String title;
+
+    @Column(name = "author")
+    private String author;
+
+    @Column(name = "publication")
+    private Date publication;
+
+    @Column(name = "numberOfInstances")
+    private int numberOfInstances;
+
+    @ManyToMany(mappedBy = "borrowedBooks")
+    private List<User> users;
+
+    public Book() {
+    }
+
+    public Book(long id, String title, String author,
+                Date publication, int numberOfInstances,
+                List<User> users) {
+        this.id = id;
+        this.title = title;
+        this.author = author;
+        this.publication = publication;
+        this.numberOfInstances = numberOfInstances;
+        this.users = users;
+    }
+
+    public long getId() {
+        return id;
+    }
+
+    public Book id(long id) {
+        this.id = id;
+        return this;
+    }
+
+    public String getTitle() {
+        return title;
+    }
+
+    public Book title(String title) {
+        this.title = title;
+        return this;
+    }
+
+    public String getAuthor() {
+        return author;
+    }
+
+    public Book author(String author) {
+        this.author = author;
+        return this;
+    }
+
+    public Date getPublication() {
+        return publication;
+    }
+
+    public Book publication(Date publication) {
+        this.publication = publication;
+        return this;
+    }
+
+    public int getNumberOfInstances() {
+        return numberOfInstances;
+    }
+
+    public Book numberOfInstances(int numberOfInstances) {
+        this.numberOfInstances = numberOfInstances;
+        return this;
+    }
+
+    public List<User> getUsers() {
+        return users;
+    }
+
+    public Book users(
+            List<User> users) {
+        this.users = users;
+        return this;
+    }
+}

spring-boot/beginners-guide/src/main/java/com/reflectoring/beginnersguide/repository/BookRepository.java

@@ -0,0 +1,20 @@
+package com.reflectoring.beginnersguide.repository;
+
+import com.reflectoring.beginnersguide.domain.Book;
+import org.springframework.data.jpa.repository.JpaRepository;
+import org.springframework.data.jpa.repository.Query;
+
+import java.util.List;
+
+public interface BookRepository extends JpaRepository<Book, Long> {
+
+    @Query(nativeQuery = true, value = "SELECT * FROM Book " +
+            "book WHERE book.currentlyAvailableNumber > 5 ")
+    List<Book> findWithMoreInstancesThenFive();
+
+    @Query( value = "SELECT b FROM book b where b.numberOfInstances > 5")
+    List<Book> findWithMoreInstancesThenFiveJPQL();
+
+    List<Book> findAllByNumberOfInstancesGreaterThan(long limit);
+
+}

spring-boot/beginners-guide/src/main/java/com/reflectoring/beginnersguide/services/BookMapper.java

@@ -0,0 +1,38 @@
+package com.reflectoring.beginnersguide.services;
+
+import com.reflectoring.beginnersguide.controllers.dto.BookRequest;
+import com.reflectoring.beginnersguide.controllers.dto.BookResponse;
+import com.reflectoring.beginnersguide.domain.Book;
+import org.springframework.stereotype.Component;
+
+import java.sql.Date;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Component
+class BookMapper {
+
+    BookResponse map(Book book){
+        return BookResponse.builder()
+                .id(book.getId())
+                .author(book.getAuthor())
+                .title(book.getTitle())
+                .currentlyAvailableNumber(
+                        book.getNumberOfInstances())
+                .publishedOn(book.getPublication().toString())
+                .build();
+    }
+    List<BookResponse> mapAll(List<Book> books){
+        return books != null ? books.stream().map(this::map).collect(
+                Collectors.toList()) : new ArrayList<>();
+    }
+
+    Book map(BookRequest request){
+        return new Book(0L,request.getTitle(),
+                request.getAuthor(),
+                Date.valueOf(request.getPublishedOn()),
+                (int) request.getCurrentlyAvailableNumber(),
+                new ArrayList<>());
+    }
+}

spring-boot/beginners-guide/src/main/java/com/reflectoring/beginnersguide/services/DeleteBookService.java

@@ -0,0 +1,22 @@
+package com.reflectoring.beginnersguide.services;
+
+import com.reflectoring.beginnersguide.repository.BookRepository;
+import org.springframework.stereotype.Service;
+
+@Service
+public class DeleteBookService {
+
+    private final BookRepository bookRepository;
+
+    private final BookMapper bookMapper;
+
+    public DeleteBookService(BookRepository bookRepository,
+                             BookMapper getBookMapper) {
+        this.bookRepository = bookRepository;
+        this.bookMapper = getBookMapper;
+    }
+
+    public void delete(long id){
+    }
+
+}

spring-boot/beginners-guide/src/main/java/com/reflectoring/beginnersguide/services/GetBookService.java

@@ -0,0 +1,38 @@
+package com.reflectoring.beginnersguide.services;
+
+import com.reflectoring.beginnersguide.controllers.dto.BookResponse;
+import com.reflectoring.beginnersguide.repository.BookRepository;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class GetBookService {
+
+    private final BookRepository bookRepository;
+
+//    @Autowired
+//    public GetBookService(BookRepository bookRepository) {
+//        this.bookRepository = bookRepository;
+//    }
+    private final BookMapper getBookMapper;
+
+    public GetBookService(BookRepository bookRepository,
+                          BookMapper getBookMapper) {
+        this.bookRepository = bookRepository;
+        this.getBookMapper = getBookMapper;
+    }
+
+//    @Autowired
+//    private void setBookRepository(BookRepository bookRepository){
+//        this.bookRepository = bookRepository;
+//    }
+
+    public List<BookResponse> getAllBooks(){
+        return getBookMapper.mapAll(bookRepository.findAll());
+    }
+
+    public List<BookResponse> getAllBooksWhereInstancesGreaterThanFive(){
+        return getBookMapper.mapAll(bookRepository.findWithMoreInstancesThenFive());
+    }
+}

spring-boot/beginners-guide/src/main/java/com/reflectoring/beginnersguide/services/UpdateBookService.java

@@ -0,0 +1,46 @@
+package com.reflectoring.beginnersguide.services;
+
+import com.reflectoring.beginnersguide.controllers.dto.BookRequest;
+import com.reflectoring.beginnersguide.controllers.dto.BookResponse;
+import com.reflectoring.beginnersguide.domain.Book;
+import com.reflectoring.beginnersguide.domain.User;
+import com.reflectoring.beginnersguide.repository.BookRepository;
+import org.springframework.stereotype.Service;
+
+import javax.persistence.EntityNotFoundException;
+
+@Service
+public class UpdateBookService {
+    private final GetUserService getUserService;
+    private final BookRepository bookRepository;
+
+    public UpdateBookService(
+            GetUserService getUserService,
+            BookRepository bookRepository) {
+        this.getUserService = getUserService;
+        this.bookRepository = bookRepository;
+    }
+
+    public BookResponse updateBook(long id, BookRequest request){
+        return null;
+    }
+
+    public void borrow(long bookId, long userId){
+        User user = getUserService.getById(userId);
+        if(user.getBorrowedBooks().stream().anyMatch(book -> book.getId()== bookId)){
+            throw new IllegalStateException("User already borrowed " +
+                    "the book");
+        }
+        Book book =
+                bookRepository.findById(bookId).orElseThrow(() -> new EntityNotFoundException());
+
+        if(book.getNumberOfInstances()-1 < 0){
+            throw new IllegalStateException("There are no available" +
+                    " books!");
+        }
+        book.getUsers().add(user);
+        book.numberOfInstances(book.getNumberOfInstances()+1);
+        bookRepository.save(book);
+    }
+
+}

spring-boot/beginners-guide/src/test/java/com/reflectoring/beginnersguide/BegginersGuideApplicationTests.java → spring-boot/beginners-guide/src/test/java/com/reflectoring/beginnersguide/BeginnersGuideApplicationTests.java

@@ -4,7 +4,7 @@
 import org.springframework.boot.test.context.SpringBootTest;
 
 @SpringBootTest
-class BegginersGuideApplicationTests {
+class BeginnersGuideApplicationTests {
 
     @Test
     void contextLoads() {