@Override
public int execute(String[] parameters) throws SQLException {
if (Context.getLoggedHolder() == null) {
LOGGER.warn("Error: User isn't logged in.");
return 1;
}
if (!Context.getLoggedHolder().getRights()) {
LOGGER.warn("Error: Access only for librarians.");
return 2;
}
if (parameters.length != parametersNumber) {
LOGGER.warn("Error: Wrong number of parameters.");
return 3;
}
boolean result;
try {
result = dao.deleteBookType(new BigInteger(parameters[1]));
} catch (NumberFormatException e) {
LOGGER.warn("Error: ID should be number.");
return 6;
}
if (!result) {
LOGGER.warn("Error: Unsuccessful delete.");
return 15;
}
LOGGER.info("Book type successfully deleted.");
return 0;
}
@Override
public int execute(String[] parameters) throws IOException, SQLException {
if (Context.getLoggedHolder() == null) {
LOGGER.warn("Error: User isn't logged in.");
return 1;
}
if (!Context.getLoggedHolder().getRights()) {
LOGGER.warn("Error: Access only for librarians.");
return 2;
}
if (parameters.length != parametersNumber) {
LOGGER.warn("Error: Wrong number of parameters.");
return 3;
}
Book book;
try {
book = new Book(new BigInteger(parameters[1]));
} catch (NumberFormatException e) {
LOGGER.warn("Error: ID shouldn't be null or negative value.");
return 5;
}
if (!dao.addBook(book)) {
LOGGER.info("Error: unsuccessfully query. Book hasn't been added.");
return 18;
}
LOGGER.info("Book successfully added.");
return 0;
}
@Override
public int execute(String[] parameters) throws SQLException {
if (Context.getLoggedHolder() == null) {
LOGGER.warn("Error: User isn't logged in.");
return 1;
}
if (!Context.getLoggedHolder().getRights()) {
LOGGER.warn("Error: Access only for librarians.");
return 2;
}
if (parameters.length != parametersNumber) {
LOGGER.warn("Error: Wrong number of parameters.");
return 3;
}
BookType bookType;
try {
bookType =
new BookType(parameters[1], new BigInteger(parameters[2]), new BigInteger(parameters[3]));
} catch (IllegalArgumentException e) {
LOGGER.warn("Error: Name shouldn't be null or void.");
return 4;
} catch (NullPointerException e) {
LOGGER.warn("Error: ID shouldn't be null or negative value.");
return 5;
}
if (!dao.addBookType(bookType)) {
LOGGER.info("Error: unsuccessfully query. Book type hasn't been added.");
return 18;
}
LOGGER.info("Book type successfully added.");
return 0;
}
@Override
public int execute(String[] parameters) {
if (Context.getLoggedHolder() == null) {
LOGGER.warn("Error: User isn't logged in.");
return notLoggedInToLogOut;
}
Context.removeUserFromSignedUsers();
LOGGER.info("User successfully logged out.");
return success;
}