public void doRentDVD(StaffData staff_data, CustomerData customer_data, DVDData DVD_data) {
if (staff_data.getID() == 0 || customer_data.getID() == 0 || DVD_data.getID() == 0) {
setMessage("Enter staff, customer and DVD IDs first");
return;
}
try {
// populate objects
staff_data = getStaffManager().findStaff(staff_data.getID());
customer_data = getCustomerManager().findCustomer(customer_data.getID());
DVD_data = getDVDManager().findDVD(DVD_data.getID());
// has customer asked for this DVD??
RentalData rental =
getRentalManager().findRental(customer_data.getID(), DVD_data.getID(), null);
if (rental != null) {
if (rental.getDispatched() != null && !rental.getDispatched().equals("null")) {
setMessage("Already dispatched to customer on " + rental.getDispatched());
return;
}
try {
// need to do begin transaction...
DVDStoreFactory.getInstance().begin();
// indicate sent to customer & by whom
rental.setStaffID(staff_data.getID());
rental.setDispatched(DVDStoreFactory.getTodayDate());
getRentalManager().dispatchDVD(rental);
// indicate number of copies available now reduced by 1 - should change to do on REQUEST
// !!!
DVD_data.setNumCopies(DVD_data.getNumCopies() - 1);
getDVDManager().updateDVD(DVD_data);
// need to do commit transaction...
DVDStoreFactory.getInstance().commit();
setMessage("Rented DVD");
} catch (Exception e) {
setMessage("Couldn't rent DVD: exception: " + e);
try {
// need to do rollback of transaction...
DVDStoreFactory.getInstance().rollback();
} catch (Exception e2) {
setMessage("*** Couldn't roll back transaction: " + e);
}
}
} else setMessage("This DVD not requested by customer!");
} catch (Exception e) {
setMessage("Couldn't check DVD: exception:" + e);
}
}
public void doReturnDVD(StaffData staff_data, CustomerData customer_data, DVDData DVD_data) {
if (staff_data.getID() == 0 || customer_data.getID() == 0 || DVD_data.getID() == 0) {
setMessage("Enter staff, customer and DVD IDs first");
return;
}
try {
// populate objects...
staff_data = getStaffManager().findStaff(staff_data.getID());
customer_data = getCustomerManager().findCustomer(customer_data.getID());
DVD_data = getDVDManager().findDVD(DVD_data.getID());
// has customer rented this DVD?
RentalData rental_data =
getRentalManager().findRental(customer_data.getID(), DVD_data.getID(), null);
if (rental_data == null || !rental_data.getReturned().equals("null"))
setMessage("This DVD not rented by this customer!");
else {
try {
// begin transaction...
DVDStoreFactory.getInstance().begin();
rental_data.setReturned(DVDStoreFactory.getTodayDate());
getRentalManager().returnDVD(rental_data);
DVD_data.setNumCopies(DVD_data.getNumCopies() + 1);
getDVDManager().updateDVD(DVD_data);
// need to commit transaction...
DVDStoreFactory.getInstance().commit();
setMessage("Returned DVD");
} catch (Exception e) {
setMessage("Couldn't return DVD: exception " + e);
try {
// need to rollback transaction
DVDStoreFactory.getInstance().rollback();
} catch (Exception e2) {
setMessage("Couldn't rollback transaction: exception " + e);
}
}
}
} catch (Exception e) {
setMessage("couldn't check DVD record: " + e);
}
}
public RentalManager getRentalManager() {
if (rental_manager == null) rental_manager = DVDStoreFactory.getInstance().getRentalManager();
return rental_manager;
}
public DVDManager getDVDManager() {
if (DVD_manager == null) DVD_manager = DVDStoreFactory.getInstance().getDVDManager();
return DVD_manager;
}
public CustomerManager getCustomerManager() {
if (customer_manager == null) {
customer_manager = DVDStoreFactory.getInstance().getCustomerManager();
}
return customer_manager;
}
public StaffManager getStaffManager() {
if (staff_manager == null) staff_manager = DVDStoreFactory.getInstance().getStaffManager();
return staff_manager;
}
/**
* Title: Description: Copyright: Copyright (c) 2001 Company:
*
* @author
* @version 1.0
*/
public class RentalInterface implements Serializable {
/** */
private static final long serialVersionUID = 2778779912627434237L;
public RentalInterface() {}
private transient StaffManager staff_manager = DVDStoreFactory.getInstance().getStaffManager();
private transient CustomerManager customer_manager =
DVDStoreFactory.getInstance().getCustomerManager();
private transient DVDManager DVD_manager = DVDStoreFactory.getInstance().getDVDManager();
private transient RentalManager rental_manager = DVDStoreFactory.getInstance().getRentalManager();
public StaffManager getStaffManager() {
if (staff_manager == null) staff_manager = DVDStoreFactory.getInstance().getStaffManager();
return staff_manager;
}
public CustomerManager getCustomerManager() {
if (customer_manager == null) {
customer_manager = DVDStoreFactory.getInstance().getCustomerManager();
}
return customer_manager;
}
public DVDManager getDVDManager() {
if (DVD_manager == null) DVD_manager = DVDStoreFactory.getInstance().getDVDManager();
return DVD_manager;
}
public RentalManager getRentalManager() {
if (rental_manager == null) rental_manager = DVDStoreFactory.getInstance().getRentalManager();
return rental_manager;
}
public void processRequest(
String action, StaffData staff_data, CustomerData customer_data, DVDData DVD_data) {
if (action == null) {
setMessage("");
return;
}
if (action.equals("findStaff")) doFindStaff(staff_data);
else if (action.equals("findCustomer")) doFindCustomer(customer_data);
else if (action.equals("findDVD")) doFindDVD(DVD_data);
else if (action.equals("rentDVD")) doRentDVD(staff_data, customer_data, DVD_data);
else if (action.equals("returnDVD")) doReturnDVD(staff_data, customer_data, DVD_data);
else setMessage("Unknown action " + action);
}
private String message = "";
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public void doFindStaff(StaffData staff_data) {
try {
if (staff_data.getID() == 0) {
setMessage("Enter your staff ID");
staff_data.setID(0);
return;
}
if (staff_data.getPassword().equals("")) {
setMessage("Enter your password");
staff_data.setID(0);
return;
}
StaffData s2 = getStaffManager().findStaff(staff_data.getID());
if (s2 != null) {
if (s2.matchesPassword(staff_data.getPassword())) {
setMessage("Found staff member");
staff_data.setName(s2.getName());
} else setMessage("That password is incorrect");
} else setMessage("Can't find that staff record");
} catch (Exception e) {
setMessage("Error finding staff: " + e.toString());
staff_data.setID(0);
}
}
public void doFindCustomer(CustomerData customer_data) {
if (customer_data.getID() == 0) {
setMessage("Enter customer ID");
customer_data.setID(0);
return;
}
try {
CustomerData c2 = getCustomerManager().findCustomer(customer_data.getID());
if (c2 != null) {
setMessage("Customer found");
customer_data.setName(c2.getName());
customer_data.setAddress(c2.getAddress());
} else {
setMessage("Can't find that customer record");
}
} catch (Exception e) {
setMessage("Error looking up customer: " + e.toString());
customer_data.setID(0);
}
}
public void doFindDVD(DVDData DVD_data) {
if (DVD_data.getID() == 0) {
setMessage("Enter DVD ID");
DVD_data.setID(0);
return;
}
try {
DVDData v2 = getDVDManager().findDVD(DVD_data.getID());
if (v2 != null) {
setMessage("DVD found");
DVD_data.setTitle(v2.getTitle());
} else {
setMessage("Can't find that DVD record");
}
} catch (Exception e) {
setMessage("Error looking up DVD: " + e.toString());
DVD_data.setID(0);
}
}
public void doRentDVD(StaffData staff_data, CustomerData customer_data, DVDData DVD_data) {
if (staff_data.getID() == 0 || customer_data.getID() == 0 || DVD_data.getID() == 0) {
setMessage("Enter staff, customer and DVD IDs first");
return;
}
try {
// populate objects
staff_data = getStaffManager().findStaff(staff_data.getID());
customer_data = getCustomerManager().findCustomer(customer_data.getID());
DVD_data = getDVDManager().findDVD(DVD_data.getID());
// has customer asked for this DVD??
RentalData rental =
getRentalManager().findRental(customer_data.getID(), DVD_data.getID(), null);
if (rental != null) {
if (rental.getDispatched() != null && !rental.getDispatched().equals("null")) {
setMessage("Already dispatched to customer on " + rental.getDispatched());
return;
}
try {
// need to do begin transaction...
DVDStoreFactory.getInstance().begin();
// indicate sent to customer & by whom
rental.setStaffID(staff_data.getID());
rental.setDispatched(DVDStoreFactory.getTodayDate());
getRentalManager().dispatchDVD(rental);
// indicate number of copies available now reduced by 1 - should change to do on REQUEST
// !!!
DVD_data.setNumCopies(DVD_data.getNumCopies() - 1);
getDVDManager().updateDVD(DVD_data);
// need to do commit transaction...
DVDStoreFactory.getInstance().commit();
setMessage("Rented DVD");
} catch (Exception e) {
setMessage("Couldn't rent DVD: exception: " + e);
try {
// need to do rollback of transaction...
DVDStoreFactory.getInstance().rollback();
} catch (Exception e2) {
setMessage("*** Couldn't roll back transaction: " + e);
}
}
} else setMessage("This DVD not requested by customer!");
} catch (Exception e) {
setMessage("Couldn't check DVD: exception:" + e);
}
}
public void doReturnDVD(StaffData staff_data, CustomerData customer_data, DVDData DVD_data) {
if (staff_data.getID() == 0 || customer_data.getID() == 0 || DVD_data.getID() == 0) {
setMessage("Enter staff, customer and DVD IDs first");
return;
}
try {
// populate objects...
staff_data = getStaffManager().findStaff(staff_data.getID());
customer_data = getCustomerManager().findCustomer(customer_data.getID());
DVD_data = getDVDManager().findDVD(DVD_data.getID());
// has customer rented this DVD?
RentalData rental_data =
getRentalManager().findRental(customer_data.getID(), DVD_data.getID(), null);
if (rental_data == null || !rental_data.getReturned().equals("null"))
setMessage("This DVD not rented by this customer!");
else {
try {
// begin transaction...
DVDStoreFactory.getInstance().begin();
rental_data.setReturned(DVDStoreFactory.getTodayDate());
getRentalManager().returnDVD(rental_data);
DVD_data.setNumCopies(DVD_data.getNumCopies() + 1);
getDVDManager().updateDVD(DVD_data);
// need to commit transaction...
DVDStoreFactory.getInstance().commit();
setMessage("Returned DVD");
} catch (Exception e) {
setMessage("Couldn't return DVD: exception " + e);
try {
// need to rollback transaction
DVDStoreFactory.getInstance().rollback();
} catch (Exception e2) {
setMessage("Couldn't rollback transaction: exception " + e);
}
}
}
} catch (Exception e) {
setMessage("couldn't check DVD record: " + e);
}
}
}
