/** ******************************************************************************************* */
public void DeletePublisher(Publisher publisher) throws Exception {
ConnectionUtil c = new ConnectionUtil();
Connection conn = c.createConnection();
try {
if (publisher == null
|| publisher.getPublisherName() == null
|| publisher.getPublisherName().length() == 0
|| publisher.getPublisherName().length() > 45
|| publisher.getPublisherAddress() == null
|| publisher.getPublisherAddress().length() == 0
|| publisher.getPublisherAddress().length() > 45
|| publisher.getPublisherPhone() == null
|| publisher.getPublisherPhone().length() == 0
|| publisher.getPublisherPhone().length() > 45) {
throw new Exception("The Publisher cannot be null");
} else {
PublisherDAO pdao = new PublisherDAO(conn);
pdao.delete(publisher);
conn.commit();
}
} catch (Exception e) {
e.printStackTrace();
conn.rollback();
} finally {
conn.close();
}
}
private void Deletepublisher() throws SQLException {
boolean exit_Add = false;
int id;
Set<Publisher> set = as.listpublisher3();
System.out.println("\nPublisher ID | Publisher Name | Publisher Address | Publisher Phone ");
System.out.println("----------------------------------------------------------------------");
Set<Integer> sk = new HashSet<Integer>();
for (Publisher s : set) {
sk.add(s.getPublisherId());
System.out.println(
s.getPublisherId()
+ "\t "
+ s.getPublisherName()
+ "\t "
+ s.getPublisherAddress()
+ "\t "
+ s.getPublisherPhone());
}
do {
System.out.println();
System.out.println("Enter the Publisher Id you want to delete:");
try {
id = Integer.parseInt(sc.nextLine().trim());
if (sk.contains(id)) {
Publisher p = new Publisher();
p.setPublisherId(id);
as.deletePublisher(p);
System.out.println("Deletion successful!");
} else {
System.out.println("This Id does not exist exists.");
}
} catch (Exception e) {
System.out.println("INFO:Should be an integer!");
}
if (!exit_Add) {
System.out.println();
System.out.println();
System.out.println("Press ' q ' to return or any other key to continue");
String option = (sc.nextLine());
if (option.length() > 0) {
switch (option.charAt(0)) {
case 'q':
exit_Add = true;
break;
default:
exit_Add = false;
break;
}
}
}
} while (!exit_Add);
}
private void Updatebook2(int id) throws SQLException {
boolean exit_Add = false;
String title;
int pubId;
Map<Integer, Book> m = as.listBooksFirstLevel2();
Set<Publisher> set = as.listpublisher3();
Book b = new Book();
System.out.println("\nPublisher ID | Publisher Name | Publisher Address | Publisher Phone ");
System.out.println("---------------------------------------");
Set<Integer> sk = new HashSet<>();
Map<Integer, Publisher> map = new HashMap<Integer, Publisher>();
for (Publisher s : set) {
sk.add(s.getPublisherId());
map.put(s.getPublisherId(), s);
System.out.println(
s.getPublisherId()
+ "\t "
+ s.getPublisherName()
+ "\t "
+ s.getPublisherAddress()
+ "\t "
+ s.getPublisherPhone());
}
do {
System.out.println();
System.out.println("Enter the New Publisher Id from the list above:\n");
try {
pubId = Integer.parseInt(sc.nextLine().trim());
System.out.println("Enter the New Title:\n");
title = sc.nextLine();
if (title != null && title.length() > 0 && title.length() <= 45) {
if (sk.contains(pubId)) { // if valid publisher ID
b.setBookId(id);
b.setTitle(title);
b.setPublisher(map.get(pubId));
as.updatebook2(b);
System.out.println("Book updated successfully");
exit_Add = true;
} else {
// If invalid publisher ID, just update the title
b.setBookId(id);
b.setTitle(title);
// b.setPublisherId();
as.updatebook(b);
System.out.println("----------------------------------");
System.out.println("Not a valid Publisher Id!");
System.out.println("Only Book tilte updated ");
exit_Add = true;
}
} else {
System.out.println();
System.out.println("Error: Name cannot be empty");
}
} catch (Exception e) {
System.out.println("INFO:Should be an integer!");
}
if (!exit_Add) {
System.out.println();
System.out.println();
System.out.println("Press ' q ' to return or any other key to continue");
String option = (sc.nextLine());
if (option.length() > 0) {
switch (option.charAt(0)) {
case 'q':
exit_Add = true;
break;
default:
exit_Add = false;
break;
}
}
}
} while (!exit_Add);
}
private void Addbook() throws Exception {
boolean exit_Add = false;
String name;
int pubId;
Set<Publisher> set = as.listpublisher3();
Book b = new Book();
Publisher p;
System.out.println("\nPublisher ID | Publisher Name | Publisher Address | Publisher Phone ");
System.out.println("----------------------------------------------------------------------");
Set<Integer> sk = new HashSet<Integer>();
Map<Integer, Publisher> m =
new HashMap<Integer, Publisher>(); // used to retrieve later one publisher
for (Publisher s : set) {
sk.add(s.getPublisherId());
m.put(s.getPublisherId(), s);
System.out.println(
s.getPublisherId()
+ "\t "
+ s.getPublisherName()
+ "\t "
+ s.getPublisherAddress()
+ "\t "
+ s.getPublisherPhone());
}
do {
System.out.println();
System.out.println("Enter the Publisher Id from the list above:");
try {
pubId = Integer.parseInt(sc.nextLine().trim());
System.out.println("Enter the Title of the book:");
name = sc.nextLine();
if (name != null && name.length() > 0 && name.length() <= 45) {
if (sk.contains(pubId)) {
b.setTitle(name);
b.setPublisher(m.get(pubId));
as.createBook(b);
System.out.println("Book added successfuly");
exit_Add = true;
} else {
// b.setBookTitle(name);
// dao.Insertbook(b);
exit_Add = false;
System.out.println("Error: This publisher does not exist!!");
}
} else {
System.out.println();
System.out.println("Error: Title cannot be empty or more than 45 characters");
}
} catch (SQLException e) {
System.out.println(e);
e.printStackTrace();
}
if (!exit_Add) {
System.out.println();
System.out.println();
System.out.println("Press ' q ' to return or any other key to continue");
String option = (sc.nextLine());
if (option.length() > 0) {
switch (option.charAt(0)) {
case 'q':
exit_Add = true;
break;
default:
exit_Add = false;
break;
}
}
}
} while (!exit_Add);
}