Feat: Added Librarian Concept + Media support

lesson_10/solid/solid_app/src/main/java/com/codedifferently/lesson10/library/Librarian.java

@@ -0,0 +1,57 @@
+package com.codedifferently.lesson10.library;
+
+import com.codedifferently.lesson10.library.exceptions.BookCheckedOutException;
+
+/** Represents a librarian of a library. */
+public class Librarian extends Patron {
+
+ /**
+ * Create a new librarian with the given name and email.
+ *
+ * @param name The name of the librarian.
+ * @param email The email of the librarian.
+ */
+ public Librarian(String name, String email) {
+ super(name, email);
+ }
+
+ /**
+ * Check out a book to a patron.
+ *
+ * @param book The book to check out.
+ * @return True if the book was checked out, false otherwise.
+ */
+ @Override
+ public boolean checkOutBook(Book book) {
+ if (this instanceof Librarian) {
+ return super.checkOutBook(book);
+ }
+ return false; // Librarians cannot check out books to regular patrons
+ }
+
+ /**
+ * Return a book to the library.
+ *
+ * @param book The book to return.
+ * @return True if the book was returned, false otherwise.
+ */
+ @Override
+ public boolean checkInBook(Book book) {
+ if (this instanceof Librarian) {
+ return super.checkInBook(book);
+ }
+ return false; // Librarians cannot return books for regular patrons
+ }
+
+ /**
+ * Remove a book from the library.
+ *
+ * @param book The book to remove.
+ */
+ public void removeBook(Book book) throws BookCheckedOutException {
+ if (book.isCheckedOut()) {
+ throw new BookCheckedOutException("Cannot remove checked out book.");
+ }
+ book.setLibrary(null);
+ }
+}

lesson_10/solid/solid_app/src/main/java/com/codedifferently/lesson10/library/Patron.java

@@ -59,6 +59,36 @@ public Set<Book> getCheckedOutBooks() throws LibraryNotSetException {
  return this.library.getCheckedOutByPatron(this);
  }
 
+ /**
+ * Check out a book from the library.
+ *
+ * @param book The book to check out.
+ * @return True if the book was successfully checked out, false otherwise.
+ */
+ public boolean checkOutBook(Book book) {
+ try {
+ return this.library.checkOutBook(book, this);
+ } catch (Exception e) {
+ System.out.println(e.getMessage());
+ return false;
+ }
+ }
+
+ /**
+ * Return a book to the library.
+ *
+ * @param book The book to return.
+ * @return True if the book was successfully returned, false otherwise.
+ */
+ public boolean checkInBook(Book book) {
+ try {
+ return this.library.checkInBook(book, this);
+ } catch (Exception e) {
+ System.out.println(e.getMessage());
+ return false;
+ }
+ }
+
  @Override
  public boolean equals(Object o) {
  if (this == o) return true;

lesson_10/solid/solid_app/src/main/java/com/codedifferently/lesson10/library/media/Dvd.java

@@ -0,0 +1,25 @@
+package com.codedifferently.lesson10.library.media;
+
+public class Dvd {
+ private String title;
+ private String director;
+ private int duration;
+
+ public Dvd(String title, String director, int duration) {
+ this.title = title;
+ this.director = director;
+ this.duration = duration;
+ }
+
+ public String getTitle() {
+ return title;
+ }
+
+ public String getDirector() {
+ return director;
+ }
+
+ public int getDuration() {
+ return duration;
+ }
+}

lesson_10/solid/solid_app/src/main/java/com/codedifferently/lesson10/library/media/Magazine.java

@@ -0,0 +1,25 @@
+package com.codedifferently.lesson10.library.media;
+
+public class Magazine {
+ private String title;
+ private String issueNumber;
+ private String publicationDate;
+
+ public Magazine(String title, String issueNumber, String publicationDate) {
+ this.title = title;
+ this.issueNumber = issueNumber;
+ this.publicationDate = publicationDate;
+ }
+
+ public String getTitle() {
+ return title;
+ }
+
+ public String getIssueNumber() {
+ return issueNumber;
+ }
+
+ public String getPublicationDate() {
+ return publicationDate;
+ }
+}

lesson_10/solid/solid_app/src/main/java/com/codedifferently/lesson10/library/media/Newspaper.java

@@ -0,0 +1,25 @@
+package com.codedifferently.lesson10.library.media;
+
+public class Newspaper {
+ private String title;
+ private String edition;
+ private String publicationDate;
+
+ public Newspaper(String title, String edition, String publicationDate) {
+ this.title = title;
+ this.edition = edition;
+ this.publicationDate = publicationDate;
+ }
+
+ public String getTitle() {
+ return title;
+ }
+
+ public String getEdition() {
+ return edition;
+ }
+
+ public String getPublicationDate() {
+ return publicationDate;
+ }
+}

lesson_10/solid/solid_app/src/test/java/com/codedifferently/lesson10/library/media/DvdTest.java

@@ -0,0 +1 @@
+

lesson_10/solid/solid_app/src/test/java/com/codedifferently/lesson10/library/media/MagazineTest.java

@@ -0,0 +1 @@
+

lesson_10/solid/solid_app/src/test/java/com/codedifferently/lesson10/library/media/NewspaperTest.java

@@ -0,0 +1 @@
+