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dbConnectivity.java
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/*
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package library;
/**
*
* @author Minahil Imtiaz
*/
import java.util.*;
import java.io.*;
import java.util.ArrayList;
import java.util.List;
import java.util.Date;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.Statement;
import java.sql.ResultSet;
/**
*
* @author Minahil
*/
public class dbConnectivity {
Connection con;
Statement stmt;
dbConnectivity() //cons
{
try {
String s = "jdbc:sqlserver://localhost:49862;databaseName=Library";
con = DriverManager.getConnection(s, "new_user", "123");
stmt = con.createStatement();
} catch (Exception e) {
System.out.println(e);
}
}
void closeConnection()
{
try
{
con.close();
}
catch (Exception e) {
System.out.println(e);
}
}
Books GetaBookbyId(int book_id) {
Books CurrentBook = new Books();
try {
ResultSet rs = stmt.executeQuery("select * from Books where book_id='" + book_id + "'");
while (rs.next()) {
int quantity;
String title, author, subject;
book_id = rs.getInt(1);
title = rs.getString(2);
author = rs.getString(3);
subject = rs.getString(4);
quantity = rs.getInt(5);
Books NewBook = new Books(book_id, title, author, subject, quantity);
CurrentBook = NewBook;
}
} catch (Exception e) {
System.out.println(e);
}
return CurrentBook;
}
ArrayList<Books> LoadAllBooks() {
ArrayList<Books> CurrentBooks = new ArrayList<>();
try {
ResultSet rs = stmt.executeQuery("select * from Books");
while (rs.next()) {
int book_id, quantity;
String title, author, subject;
book_id = rs.getInt(1);
title = rs.getString(2);
author = rs.getString(3);
subject = rs.getString(4);
quantity = rs.getInt(5);
Books NewBook = new Books(book_id, title, author, subject, quantity);
CurrentBooks.add(NewBook);
}
} catch (Exception e) {
System.out.println(e);
}
return CurrentBooks;
}
String GetAuthorofBook(int book_id) {
String author = " ";
try {
ResultSet rs = stmt.executeQuery("select author from Books where book_id='" + book_id + "'");
while (rs.next()) {
author = rs.getString(1);
}
} catch (Exception e) {
System.out.println(e);
}
return author;
}
String GetTitleofBook(int book_id) {
String title = " ";
try {
ResultSet rs = stmt.executeQuery("select title from Books where book_id='" + book_id + "'");
while (rs.next()) {
title = rs.getString(1);
}
} catch (Exception e) {
System.out.println(e);
}
return title;
}
String GetSubjectofBook(int book_id) {
String subject = " ";
try {
ResultSet rs = stmt.executeQuery("select subject from Books where book_id='" + book_id + "'");
while (rs.next()) {
subject = rs.getString(1);
}
} catch (Exception e) {
System.out.println(e);
}
return subject;
}
int GetQuantityofBook(int book_id) {
int quantity = -1;
try {
ResultSet rs = stmt.executeQuery("select quantity from Books where book_id='" + book_id + "'");
while (rs.next()) {
quantity = rs.getInt(1);
}
} catch (Exception e) {
System.out.println(e);
}
return quantity;
}
void UpdateBookQuantity(int new_quantity, int id) {
try {
int i = stmt.executeUpdate("UPDATE Books SET quantity='" + new_quantity + "'Where book_id='" + id + "'");
} catch (Exception e) {
System.out.println(e);
}
}
void ChangeBookInfo(int book_id, String UpdatedInfo, int type) {
try {
if (type == 1) {
int i = stmt.executeUpdate("UPDATE Books SET title='" + UpdatedInfo + "'Where book_id='" + book_id + "'");
} else if (type == 2) {
int i = stmt.executeUpdate("UPDATE Books SET author='" + UpdatedInfo + "'Where book_id='" + book_id + "'");
} else if (type == 3) {
int i = stmt.executeUpdate("UPDATE Books SET subject='" + UpdatedInfo + "'Where book_id='" + book_id + "'");
}
} catch (Exception e) {
System.out.println(e);
}
}
//Functions Related to Borrower are implemented below
Borrower GetaBorrowerObjectByUserId(int id) {
Borrower BorrowerObject = new Borrower();
try {
ResultSet rs = stmt.executeQuery("select * from Borrower where borrower_id='" + id + "'");
while (rs.next()) {
int borrower_id;
String borrower_name, borrower_address, borrower_number;
char borrower_gender;
boolean fine_defaulter;
float fine;
borrower_id = rs.getInt(1);
borrower_name = rs.getString(2);
borrower_gender = rs.getString(3).charAt(0);
borrower_address = rs.getString(4);
borrower_number = rs.getString(5);
fine_defaulter = rs.getBoolean(6);
fine = rs.getFloat(7);
Borrower TempBorrowerObject = new Borrower(borrower_id, borrower_name, borrower_gender, borrower_address, borrower_number, fine_defaulter, fine);
BorrowerObject = TempBorrowerObject;
}
} catch (Exception e) {
System.out.println(e);
}
return BorrowerObject;
}
ArrayList<Users> LoadAllBorrowers() {
ArrayList<Borrower> Borrowers = new ArrayList<>();
ArrayList<Users> CurrentUsers = new ArrayList<>();
try {
ResultSet rs = stmt.executeQuery("select * from Borrower");
while (rs.next()) {
int borrower_id;
String borrower_name, borrower_address, borrower_number;
char borrower_gender;
boolean fine_defaulter;
float fine;
borrower_id = rs.getInt(1);
borrower_name = rs.getString(2);
borrower_gender = rs.getString(3).charAt(0);
borrower_address = rs.getString(4);
borrower_number = rs.getString(5);
fine_defaulter = rs.getBoolean(6);
fine = rs.getFloat(7);
Borrower TempBorrowerObj = new Borrower(borrower_id, borrower_name, borrower_gender, borrower_number, borrower_address, fine_defaulter, fine);
Borrowers.add(TempBorrowerObj);
// System.out.println(rs.getInt(1)+" "+rs.getString(2)+" "+rs.getString(3)+" "+rs.getString(4)+" "+rs.getInt(5));
}
for (Borrower B : Borrowers) {
int borrower_id = B.GetId();
ArrayList<Loan> UserLoanArray = LoadLoanListofSpecificUser(borrower_id);
B.AllLoansofUser(UserLoanArray);
}
for (Borrower B : Borrowers) {
CurrentUsers.add(B);
}
} catch (Exception e) {
System.out.println(e);
}
return CurrentUsers;
}
boolean SetFineStatus(int borrower_id, boolean fine_defaulter) {
try {
stmt.executeUpdate("Update Borrower Set fine_defaulter='" + fine_defaulter + "' Where borrower_id='" + borrower_id + "'");
} catch (Exception e) {
System.out.println(e);
return false;
}
return true;
}
boolean SetTelephone(int borrower_id, String telnum) {
try {
stmt.executeUpdate("Update Borrower Set borrower_num='" + telnum + "' Where borrower_id='" + borrower_id + "'");
} catch (Exception e) {
System.out.println(e);
return false;
}
return true;
}
boolean SetAddress(int borrower_id, String Address) {
try {
stmt.executeUpdate("Update Borrower Set borrower_address='" + Address + "' Where borrower_id='" + borrower_id + "'");
} catch (Exception e) {
System.out.println(e);
return false;
}
return true;
}
boolean SetName(int borrower_id, String name) {
try {
stmt.executeUpdate("Update Borrower Set borrower_name='" + name+ "' Where borrower_id='" + borrower_id + "'");
} catch (Exception e) {
System.out.println(e);
return false;
}
return true;
}
boolean SetGender(int borrower_id, char g) {
try {
stmt.executeUpdate("Update Borrower Set borrower_gender='" + g+ "' Where borrower_id='" + borrower_id + "'");
} catch (Exception e) {
System.out.println(e);
return false;
}
return true;
}
boolean SetFineAmount(int borrower_id, double fine_amount) {
try {
stmt.executeUpdate("Update Borrower Set fine='" + fine_amount + "' Where borrower_id='" + borrower_id + "'");
} catch (Exception e) {
System.out.println(e);
}
return true;
}
boolean GetFineStatus(int borrower_id) {
boolean result = false;
try {
ResultSet rs = stmt.executeQuery("select fine_defaulter from Borrower where borrower_id='" + borrower_id + "'");
while (rs.next()) {
result = rs.getBoolean(1);
}
} catch (Exception e) {
System.out.println(e);
}
return result;
}
double GetFineAmount(int borrower_id) {
double amount = 0.0;
try {
ResultSet rs = stmt.executeQuery("select fine from Borrower where borrower_id='" + borrower_id + "'");
while (rs.next()) {
amount = rs.getDouble(1);
}
} catch (Exception e) {
System.out.println(e);
}
return amount;
}
//Librarian Functions implemented here
ArrayList<Librarian> LoadAllLibrarians() {
ArrayList<Librarian> CurrentLibrarians = new ArrayList<>();
try {
ResultSet rs = stmt.executeQuery("Select * From Staff Where rank='librarian'");
while (rs.next()) {
int staff_id;
String staff_name;
char staff_gender;
staff_id = rs.getInt(1);
staff_name = rs.getString(2);
staff_gender = rs.getString(3).charAt(0);
Librarian TempObj = new Librarian(staff_id, staff_name, staff_gender);
CurrentLibrarians.add(TempObj);
}
} catch (Exception e) {
System.out.println(e);
}
return CurrentLibrarians;
}
//Staff function
boolean AddBorrower(int user_id, String user_name, char user_gender, String add, String telnum) {
try {
boolean fine = false;
double fineamount = 0.0;
stmt.executeUpdate("Insert into Borrower (borrower_id, borrower_name ,borrower_gender, borrower_address , borrower_number , fine_defaulter ,fine) values('" + user_id + "','" + user_name + "','" + user_gender + "','" + add + "','" + telnum + "','" + fine + "','" + fineamount + "')");
} catch (Exception e) {
System.out.println(e);
return false;
}
return true;
}
ArrayList<Clerk> LoadAllClerk() {
ArrayList<Clerk> CurrentClerk = new ArrayList<>();
try {
ResultSet rs = stmt.executeQuery("Select * From Staff Where rank='clerk'");
while (rs.next()) {
int staff_id;
String staff_name;
char staff_gender;
staff_id = rs.getInt(1);
staff_name = rs.getString(2);
staff_gender = rs.getString(3).charAt(0);
Clerk TempObj = new Clerk(staff_id, staff_name, staff_gender);
CurrentClerk.add(TempObj);
}
} catch (Exception e) {
System.out.println(e);
}
return CurrentClerk;
}
ArrayList<Loan> LoadLoanList() {
ArrayList<Loan> LoanList = new ArrayList<>();
try {
ResultSet rs = stmt.executeQuery("Select * from (Borrower join Loan as L on Borrower.borrower_id=L.borrower_id) join Books on Books.book_id=L.book_id");
while (rs.next()) {
int borrower_id;
String borrower_name, borrower_address, borrower_number;
char borrower_gender;
boolean fine_defaulter;
double fine;
int loan_id;
Date issue_date, due_date, returned_date;
String fine_status;
boolean returned_status;
int book_id, quantity;
String title, author, subject;
borrower_id = rs.getInt(1);
borrower_name = rs.getString(2);
borrower_gender = rs.getString(3).charAt(0);
borrower_address = rs.getString(4);
borrower_number = rs.getString(5);
fine_defaulter = rs.getBoolean(6);
fine = rs.getFloat(7);
loan_id = rs.getInt(8);
issue_date = rs.getDate(9);
due_date = rs.getDate(10);
returned_date = rs.getDate(11);
fine_status = rs.getString(12);
returned_status = rs.getBoolean(13);
book_id = rs.getInt(16);
author = rs.getString(17);
title = rs.getString(18);
subject = rs.getString(19);
quantity = rs.getInt(20);
Borrower Loanee = new Borrower(borrower_id, borrower_name, borrower_gender, borrower_number, borrower_address, fine_defaulter, fine);
Books LoanedBook = new Books(book_id, author, title, subject, quantity);
Loan LoanTempObj = new Loan(loan_id, Loanee, LoanedBook, fine_status, returned_status, issue_date, due_date, returned_date);
LoanList.add(LoanTempObj);
}
} catch (Exception e) {
System.out.println(e);
}
return LoanList;
}
ArrayList<Loan> LoadLoanListofSpecificUser(int user_id) {
ArrayList<Loan> LoanListofUser = new ArrayList<>();
try {
ResultSet ds = stmt.executeQuery("Select * from (Borrower join Loan as L on Borrower.borrower_id=L.borrower_id) join Books on Books.book_id=L.book_id where Borrower.borrower_id='" + user_id + "'");
while (ds.next()) {
int borrower_id;
String borrower_name, borrower_address, borrower_number;
char borrower_gender;
boolean fine_defaulter;
double fine;
int loan_id;
Date issue_date, due_date, returned_date;
String fine_status;
boolean returned_status;
int book_id, quantity;
String title, author, subject;
borrower_id = ds.getInt(1);
borrower_name = ds.getString(2);
borrower_gender = ds.getString(3).charAt(0);
borrower_address = ds.getString(4);
borrower_number = ds.getString(5);
fine_defaulter = ds.getBoolean(6);
fine = ds.getFloat(7);
loan_id = ds.getInt(8);
issue_date = ds.getDate(9);
due_date = ds.getDate(10);
returned_date = ds.getDate(11);
fine_status = ds.getString(12);
returned_status = ds.getBoolean(13);
book_id = ds.getInt(16);
author = ds.getString(17);
title = ds.getString(18);
subject = ds.getString(19);
quantity = ds.getInt(20);
Borrower Loanee = new Borrower(borrower_id, borrower_name, borrower_gender, borrower_number, borrower_address, fine_defaulter, fine);
Books LoanedBook = new Books(book_id, author, title, subject, quantity);
Loan LoanTempObj = new Loan(loan_id, Loanee, LoanedBook, fine_status, returned_status, issue_date, due_date, returned_date);
LoanListofUser.add(LoanTempObj);
}
} catch (Exception e) {
System.out.println(e);
}
return LoanListofUser;
}
// LinkedList <Users> LoadLoanInfo ( LinkedList <Borrower> BasicInfoList)
// {
// LinkedList<Users> CurrentUsers= new LinkedList <> ();
// for( Borrower B: BasicInfoList )
// {
//
// int user_id=B.GetId();
// LinkedList<Loan> CurrentLoans=LoadLoanListofSpecificUser(user_id);
// B.AllLoansofUser(CurrentLoans);
// CurrentUsers.add(B);
//
// }
//
// return CurrentUsers;
//
// }
//Implementing LoanFunction here
boolean AddNewLoan(Loan LoanObj) {
try {
int loanid = LoanObj.GetLoanId();
Date issue_date = LoanObj.getIssueDate();
Date due_date = LoanObj.getDueDate();
Date return_date = LoanObj.getReturnDate();
String fine_status = LoanObj.GetFineStatus();
boolean returned_status = LoanObj.GetStatus();
int borrower_id = LoanObj.GetaBorrowerId();
int book_id = LoanObj.GetaBookId();
java.sql.Date issue_date1 = new java.sql.Date(issue_date.getTime());
java.sql.Date due_date1 = new java.sql.Date(due_date.getTime());
java.sql.Date return_date1 = new java.sql.Date(return_date.getTime());
stmt.executeUpdate("Insert into Loan (loanid , issue_date ,due_date , return_date , fine_status , returned_status ,borrower_id ,book_id ) values('" + loanid + "','" + issue_date1 + "','" + due_date1 + "','" + return_date1 + "','" + fine_status + "','" + returned_status + "','" + borrower_id + "','" + book_id + "')");
} catch (Exception e) {
System.out.println(e);
}
return true;
}
int GetLoanedBookId(int loanId) {
int bookId = -1;
try {
ResultSet rs = stmt.executeQuery("select book_id from Loan where loanid='" + loanId + "'");
while (rs.next()) {
bookId = rs.getInt(1);
}
} catch (Exception e) {
System.out.println(e);
}
return bookId;
}
String GetLoanFineStatus(int loanId) {
String LoanFineStatus = "";
try {
ResultSet rs = stmt.executeQuery("select fine_status from Loan where loanid='" + loanId + "'");
while (rs.next()) {
LoanFineStatus = rs.getString(1);
}
} catch (Exception e) {
System.out.println(e);
}
return LoanFineStatus;
}
Date GetReturnDate(int loanId) {
Date ReturnDate = new Date();
try {
ResultSet rs = stmt.executeQuery("select return_date from Loan where loanid='" + loanId + "'");
while (rs.next()) {
ReturnDate = rs.getDate(1);
}
} catch (Exception e) {
System.out.println(e);
}
return ReturnDate;
}
Date GetIssueDate(int loanId) {
Date IssueDate = new Date();
try {
ResultSet rs = stmt.executeQuery("select issue_date from Loan where loanid='" + loanId + "'");
while (rs.next()) {
IssueDate = rs.getDate(1);
}
} catch (Exception e) {
System.out.println(e);
}
return IssueDate;
}
Date GetDueDate(int loanId) {
Date DueDate = new Date();
try {
ResultSet rs = stmt.executeQuery("select due_date from Loan where loanid='" + loanId + "'");
while (rs.next()) {
DueDate = rs.getDate(1);
}
} catch (Exception e) {
System.out.println(e);
}
return DueDate;
}
Books GetLoanedBook(int loanId) {
Books LoanedBook = new Books();
try {
ResultSet rs = stmt.executeQuery("select book_id from Loan where loanid='" + loanId + "'");
while (rs.next()) {
int book_id = rs.getInt(1);
LoanedBook = GetaBookbyId(book_id);
}
} catch (Exception e) {
System.out.println(e);
}
return LoanedBook;
}
int GetLoaneeId(int loanId) {
int LoaneeId = -1;
try {
ResultSet rs = stmt.executeQuery("select borrower_id from Loan where loanid='"+loanId+"'");
while (rs.next()) {
LoaneeId = rs.getInt(1);
}
} catch (Exception e) {
System.out.println(e);
}
return LoaneeId;
}
boolean GetLoanReturnedStatus(int loanId) {
boolean result = false;
try {
ResultSet rs = stmt.executeQuery("select returned_status from Loan where loanid='" + loanId + "'");
while (rs.next()) {
result = rs.getBoolean(1);
}
} catch (Exception e) {
System.out.println(e);
}
return result;
}
void SetLoanReturnedDate(int loanId, Date Ret_date) {
int i = 0;
try {
java.sql.Date retdate = new java.sql.Date(Ret_date.getTime());
i = stmt.executeUpdate("UPDATE Loan SET return_date='" + retdate + "'Where loanid='" + loanId + "'");
} catch (Exception e) {
System.out.println(e);
}
}
void SetLoanedBook(int loanId, int book_id) {
int i = 0;
try {
i = stmt.executeUpdate("UPDATE Loan SET book_id='" + book_id + "'Where loanid='" + loanId + "'");
} catch (Exception e) {
System.out.println(e);
}
}
void SetLoaneeObject(int loanId, int borrower) {
int i = 0;
try {
i = stmt.executeUpdate("UPDATE Loan SET borrower_id='" + borrower + "'Where loanid='" + loanId + "'");
} catch (Exception e) {
System.out.println(e);
}
}
void SetReturnStatus(int loanId, boolean status) {
int i = 0;
try {
i = stmt.executeUpdate("UPDATE Loan SET returned_status='" + status + "'Where loanid='" + loanId + "'");
} catch (Exception e) {
System.out.println(e);
}
}
void SetLoanFineStatus(int loanId, String status) {
int i = 0;
try {
i = stmt.executeUpdate("UPDATE Loan SET fine_status='" + status + "'Where loanid='" + loanId + "'");
} catch (Exception e) {
System.out.println(e);
}
}
void SetLoan(int loanID, Loan LoanObj) {
try {
int loanid = LoanObj.GetLoanId();
Date issue_date = LoanObj.getIssueDate();
Date due_date = LoanObj.getDueDate();
Date return_date = LoanObj.getReturnDate();
String fine_status = LoanObj.GetFineStatus();
boolean returned_status = LoanObj.GetStatus();
int borrower_id = LoanObj.GetaBorrowerId();
int book_id = LoanObj.GetaBookId();
java.sql.Date issue_date1 = new java.sql.Date(issue_date.getTime());
java.sql.Date due_date1 = new java.sql.Date(due_date.getTime());
java.sql.Date return_date1 = new java.sql.Date(return_date.getTime());
stmt.executeUpdate("Update Loan SET issue_date='" + issue_date1 + "',due_date='" + due_date1 + "' ,return_date='" + return_date1 + "' , fine_status='" + fine_status + "', returned_status= '" + returned_status + "',borrower_id='" + borrower_id + "' ,book_id='" + book_id + "' Where loanid=' " + loanid + "'");
} catch (Exception e) {
System.out.println(e);
}
}
void AddNewBook(int book_id, String title, String author, String subject, int quantity) {
try {
stmt.executeUpdate("Insert into Books (book_id, author ,title, subject , quantity) values('" + book_id + "','" + author + "','" + title + "','" + subject + "','" + quantity + "')");
} catch (Exception e) {
System.out.println(e);
}
}
boolean DeleteABook(int book_id) {
boolean flag=false;
if(CheckIsBookLoaned(book_id)== false) {
try {
stmt.executeUpdate("Delete From Books Where book_id='" + book_id + "'");
flag=true;
} catch (Exception e) {
System.out.println(e);
}
}
return flag;
}
ArrayList<Books> SearchBookbyTitle(String input) {
ArrayList<Books> BooksList = new ArrayList<>();
try {
ResultSet rs = stmt.executeQuery("select book_id from Books where title='" + input + "'");
while (rs.next()) {
int book_id = rs.getInt(1);
Books NewBook = GetaBookbyId(book_id);
BooksList.add(NewBook);
}
} catch (Exception e) {
System.out.println(e);
}
return BooksList;
}
ArrayList<Books> SearchBookbyAuthor(String input) {
ArrayList<Books> BooksList = new ArrayList<>();
try {
ResultSet rs = stmt.executeQuery("select book_id from Books where author='" + input + "'");
while (rs.next()) {
int book_id = rs.getInt(1);
Books NewBook = GetaBookbyId(book_id);
BooksList.add(NewBook);
}
} catch (Exception e) {
System.out.println(e);
}
return BooksList;
}
ArrayList<Books> SearchBookbySubject(String input) {
ArrayList<Books> BooksList = new ArrayList<>();
try {
ResultSet rs = stmt.executeQuery("select book_id from Books where subject='" + input + "'");
while (rs.next()) {
int book_id = rs.getInt(1);
Books NewBook = GetaBookbyId(book_id);
BooksList.add(NewBook);
}
} catch (Exception e) {
System.out.println(e);
}
return BooksList;
}
boolean CheckUserId (int ID)
{
boolean flag=false;
try {
ResultSet rs = stmt.executeQuery("select * from Borrower where borrower_id='" + ID+ "'");
if(rs.next())
{
flag=true;
}
} catch (Exception e) {
System.out.println(e);
}
return flag;
}
boolean CheckIsBookLoaned(int book_id)
{
boolean flag=false;
try {