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Vishal M Yadav
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finished machine coding library management
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‎pom.xml

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<version>1.18.30</version>
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<scope>provided</scope>
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</dependency>
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<dependency>
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<groupId>org.projectlombok</groupId>
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<artifactId>lombok</artifactId>
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<version>RELEASE</version>
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<scope>provided</scope>
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</dependency>
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</dependencies>
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</project>

‎src/main/java/com/gatomalvado/libmgmt/Main.java

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package com.gatomalvado.libmgmt;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.time.Instant;
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import java.util.Arrays;
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import java.util.Date;
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import java.util.List;
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import java.util.Scanner;
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import com.gatomalvado.libmgmt.model.Library;
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import com.gatomalvado.libmgmt.model.request.BorrowBookRequest;
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import com.gatomalvado.libmgmt.model.request.CreateBookDetails;
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import com.gatomalvado.libmgmt.model.request.ReturnRequest;
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import com.gatomalvado.libmgmt.model.request.SearchRequest;
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import com.gatomalvado.libmgmt.orchestrator.LibraryManager;
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public class Main {
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private static LibraryManager libraryManager;
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public static void main(String[] args) {
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Scanner scanner = new Scanner(System.in);
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Library library = new Library();
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while (true) {
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String command = scanner.nextLine();
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String[] commands = command.split(" ");
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String commandType = commands[0];
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switch (commandType) {
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case "create_library":
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try{
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handleCreateLibrary(commands);
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}catch(Exception e){
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System.out.println(e.getMessage());
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}
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continue;
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case "add_book":
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try{
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handleAddBook(commands);
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}catch(Exception e){
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System.out.println(e.getMessage());
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}
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continue;
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case "remove_book_copy":
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try{
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handleRemoveBookCopy(commands);
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}catch(Exception e){
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System.out.println(e.getMessage());
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}
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continue;
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case "borrow_book":
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try{
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handleBorrowBook(commands);
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}catch(Exception e){
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System.out.println(e.getMessage());
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}
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continue;
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case "borrow_book_copy":
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try{
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handleBorrowBookCopy(commands);
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}catch(Exception e){
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System.out.println(e.getMessage());
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}
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continue;
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case "print_borrowed":
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try{
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handlePrintBorrowed(commands);
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}catch(Exception e){
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System.out.println(e.getMessage());
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}
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continue;
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case "return_book_copy":
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try{
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handleReturnBookCopy(commands);
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}catch(Exception e){
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System.out.println(e.getMessage());
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}
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continue;
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case "search":
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try{
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handleSearch(commands);
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}catch(Exception e){
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System.out.println(e.getMessage());
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}
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continue;
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case "exit":
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return;
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default:
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System.out.println("Unknown command");
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}
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}
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}
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private static void handleReturnBookCopy(String[] commands) {
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ReturnRequest returnRequest = new ReturnRequest(commands[1]);
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libraryManager.returnBook(returnRequest);
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}
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private static void handleSearch(String[] commands) {
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SearchRequest searchRequest = SearchRequest.builder().param(commands[1]).value(commands[2]).build();
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libraryManager.search(searchRequest);
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}
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private static void handlePrintBorrowed(String[] commands) {
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libraryManager.printBorrowed(commands[1]);
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}
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private static void handleBorrowBookCopy(String[] commands) {
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BorrowBookRequest request = BorrowBookRequest
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.builder()
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.bookId(commands[1])
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.userId(commands[2])
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.dueDate(Date.from(Instant.parse(commands[3])))
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.build();
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libraryManager.borrowBookId(request);
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}
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private static void handleBorrowBook(String[] commands) {
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BorrowBookRequest request = BorrowBookRequest
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.builder()
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.bookId(commands[1])
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.userId(commands[2])
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.dueDate(convertStringToDate(commands[3]))
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.build();
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libraryManager.borrowBook(request);
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}
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private static final SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd");
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public static Date convertStringToDate(String dateString) {
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try {
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return formatter.parse(dateString);
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} catch (ParseException e) {
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e.printStackTrace();
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return null; // or throw a custom exception
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}
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}
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private static void handleRemoveBookCopy(String[] commands) {
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libraryManager.removeBookCopy(commands[1]);
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}
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private static void handleAddBook(String[] commands) {
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List<String> authors = Arrays.stream(commands[3].split(",")).toList();
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List<String> publishers = Arrays.stream(commands[4].split(",")).toList();
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List<String> bookCopyIds = Arrays.stream(commands[5].split(",")).toList();
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CreateBookDetails createBookDetails = CreateBookDetails.builder()
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.bookId(commands[1])
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.title(commands[2])
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.author(authors)
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.publisher(publishers)
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.bookCopyIds(bookCopyIds)
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.build();
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libraryManager.addBookCopy(createBookDetails);
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}
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private static void handleCreateLibrary(String[] commands) {
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libraryManager = new LibraryManager(Integer.parseInt(commands[1]));
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System.out.println("Created library with "+commands[1]+" racks");
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}
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}

‎src/main/java/com/gatomalvado/libmgmt/model/Book.java

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package com.gatomalvado.libmgmt.model;
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import java.util.List;
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import lombok.AllArgsConstructor;
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import lombok.Builder;
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import lombok.Data;
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import lombok.NoArgsConstructor;
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@Data
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@AllArgsConstructor
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@Builder
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@NoArgsConstructor
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public class Book {
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private String title;
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private List<String> author;
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private List<String> publisher;
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private String bookId;
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}

‎src/main/java/com/gatomalvado/libmgmt/model/BookCopy.java

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package com.gatomalvado.libmgmt.model;
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import java.util.Date;
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import lombok.AllArgsConstructor;
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import lombok.Builder;
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import lombok.Data;
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import lombok.NoArgsConstructor;
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@Data
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@AllArgsConstructor
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@Builder
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@NoArgsConstructor
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public class BookCopy {
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private Book book;
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private String id;
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private boolean isIssued;
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private Date dueDate;
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private int rack;
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private String issuerId;
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}

‎src/main/java/com/gatomalvado/libmgmt/model/LibUser.java

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package com.gatomalvado.libmgmt.model;
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import lombok.AllArgsConstructor;
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import lombok.Builder;
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import lombok.Data;
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import lombok.NoArgsConstructor;
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@Data
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@AllArgsConstructor
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@Builder
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@NoArgsConstructor
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public class LibUser {
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private String name;
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private String userId;
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}

‎src/main/java/com/gatomalvado/libmgmt/model/Library.java

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package com.gatomalvado.libmgmt.model;
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import lombok.AllArgsConstructor;
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import lombok.Builder;
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import lombok.Data;
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import lombok.NoArgsConstructor;
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@Data
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@AllArgsConstructor
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@Builder
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@NoArgsConstructor
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public class Library {
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private int racks;
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}

‎src/main/java/com/gatomalvado/libmgmt/model/request/BorrowBookRequest.java

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package com.gatomalvado.libmgmt.model.request;
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import java.util.Date;
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import lombok.AllArgsConstructor;
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import lombok.Builder;
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import lombok.Data;
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@AllArgsConstructor
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@Builder
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@Data
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public class BorrowBookRequest {
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private String bookId;
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private String userId;
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private Date dueDate;
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}

‎src/main/java/com/gatomalvado/libmgmt/model/request/CreateBookDetails.java

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package com.gatomalvado.libmgmt.model.request;
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import java.util.List;
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import com.gatomalvado.libmgmt.model.Book;
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import lombok.AllArgsConstructor;
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import lombok.Builder;
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import lombok.Data;
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import lombok.NoArgsConstructor;
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@Data
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@AllArgsConstructor
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@Builder
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@NoArgsConstructor
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public class CreateBookDetails {
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private String title;
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private List<String> author;
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private List<String> publisher;
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private String bookId;
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private List<String> bookCopyIds;
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}

‎src/main/java/com/gatomalvado/libmgmt/model/request/ReturnRequest.java

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package com.gatomalvado.libmgmt.model.request;
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import lombok.AllArgsConstructor;
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import lombok.Data;
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@Data
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@AllArgsConstructor
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public class ReturnRequest {
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private String bookCopyId;
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}

‎src/main/java/com/gatomalvado/libmgmt/model/request/SearchRequest.java

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package com.gatomalvado.libmgmt.model.request;
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import lombok.AllArgsConstructor;
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import lombok.Builder;
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import lombok.Data;
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@Data
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@Builder
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@AllArgsConstructor
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public class SearchRequest {
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private String param;
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private String value;
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}

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