@Override
public boolean isNameInUse(String name) {
try {
checkMembershipNameStmt.setString(1, name);
ResultSet rs = checkMembershipNameStmt.executeQuery();
if (rs.next()) {
return true;
}
} catch (SQLException e) {
System.err.println(cs.getError(e.getErrorCode()));
} catch (Exception e) {
System.err.println(
"Problem with isNameInUse method: " + e.getClass().getName() + ": " + e.getMessage());
}
return false;
}
@Override
public boolean deleteMembership(int id) {
try {
deleteMembershipStmt.setInt(1, id);
deleteMembershipStmt.executeUpdate();
return true;
} catch (SQLException e) {
System.err.println(cs.getError(e.getErrorCode()));
} catch (Exception e) {
System.err.println(
"Problem with deleteMembership method: "
+ e.getClass().getName()
+ ": "
+ e.getMessage());
}
return false;
}
@Override
public Membership getMembership(int id) {
Membership member = null;
try {
getMembershipStmt.setInt(1, id);
ResultSet rs = getMembershipStmt.executeQuery();
if (rs.next()) {
member =
new Membership(id, rs.getString("name"), rs.getDouble("price"), rs.getInt("duration"));
}
} catch (SQLException e) {
System.err.println(cs.getError(e.getErrorCode()));
} catch (Exception e) {
System.err.println(
"Problem with getMembership: " + e.getClass().getName() + ": " + e.getMessage());
}
return member;
}
@Override
public boolean updateExpirationDate(Date expirationDate, int membershipLevel) {
try {
updateDurationStmt.setDate(1, expirationDate);
updateDurationStmt.setInt(2, membershipLevel);
updateDurationStmt.executeUpdate();
return true;
} catch (SQLException e) {
System.err.println(cs.getError(e.getErrorCode()));
} catch (Exception e) {
System.err.println(
"Problem with updateExpirationDate method: "
+ e.getClass().getName()
+ ": "
+ e.getMessage());
}
return false;
}
@Override
public boolean updateMembership(int id, String name, double price, int duration) {
try {
updateMembershipStmt.setString(1, name);
updateMembershipStmt.setDouble(2, price);
updateMembershipStmt.setInt(3, duration);
updateMembershipStmt.setInt(4, id);
updateMembershipStmt.executeUpdate();
return true;
} catch (SQLException e) {
System.err.println(cs.getError(e.getErrorCode()));
} catch (Exception e) {
System.err.println(
"Problem with updateMembership method: "
+ e.getClass().getName()
+ ": "
+ e.getMessage());
}
return false;
}
@Override
public int addMembership(String name, double price, int duration) {
int membershipID = 0;
try {
addMembershipStmt.setString(1, name);
addMembershipStmt.setDouble(2, price);
addMembershipStmt.setInt(3, duration);
addMembershipStmt.executeUpdate();
ResultSet rs = addMembershipStmt.getGeneratedKeys();
if (rs.next()) {
membershipID = rs.getInt(1);
}
} catch (SQLException e) {
System.err.println(cs.getError(e.getErrorCode()));
} catch (Exception e) {
System.err.println(
"Problem with addMembership method: " + e.getClass().getName() + ": " + e.getMessage());
}
return membershipID;
}
public MembershipDAO() {
try {
conn = ConnectionManager.getInstance();
getAllMembershipsStmt =
conn.prepareStatement("select * from " + Constants.MEMBERSHIP + " order by price");
getMembershipStmt =
conn.prepareStatement("select * from " + Constants.MEMBERSHIP + " where id = ?");
addMembershipStmt =
conn.prepareStatement(
"insert into " + Constants.MEMBERSHIP + " values (DEFAULT,?,?,?)",
Statement.RETURN_GENERATED_KEYS);
deleteMembershipStmt =
conn.prepareStatement("delete from " + Constants.MEMBERSHIP + " where id = ?");
checkMembershipNameStmt =
conn.prepareStatement("select * from " + Constants.MEMBERSHIP + " where name = ?");
updateMembershipStmt =
conn.prepareStatement(
"update "
+ Constants.MEMBERSHIP
+ " set name = ?,price = ?,duration = ? where id = ?");
countCustomersInMembershipStmt =
conn.prepareStatement(
"select count(*) from "
+ Constants.USERS
+ " u left outer join "
+ Constants.MEMBERSHIP
+ " m on m.id = u.membershipLevel where u.isAdmin = 0 and m.id = ?");
updateDurationStmt =
conn.prepareStatement(
"update " + Constants.USERS + " set memberExpiration = ? where membershipLevel = ?");
System.out.println("Instantiated MembershipDAO");
} catch (SQLException e) {
System.err.println(cs.getError(e.getErrorCode()));
} catch (Exception e) {
System.err.println(
"Problem with MembershipDAO constructor: "
+ e.getClass().getName()
+ ": "
+ e.getMessage());
}
}
@Override
public ArrayList<Membership> getAllMemberships() {
ArrayList<Membership> results = new ArrayList<Membership>();
try {
ResultSet rs = getAllMembershipsStmt.executeQuery();
while (rs.next()) {
results.add(
new Membership(
rs.getInt("id"),
rs.getString("name"),
rs.getDouble("price"),
rs.getInt("duration")));
}
} catch (SQLException e) {
System.err.println(cs.getError(e.getErrorCode()));
} catch (Exception e) {
System.err.println(
"Problem with getAllMemberships: " + e.getClass().getName() + ": " + e.getMessage());
}
return results;
}
@Override
public int getUsersOnMembership(int membershipID) {
int result = 0;
try {
countCustomersInMembershipStmt.setInt(1, membershipID);
ResultSet rs = countCustomersInMembershipStmt.executeQuery();
if (rs.next()) {
result = rs.getInt(1);
}
return result;
} catch (SQLException e) {
System.err.println(cs.getError(e.getErrorCode()));
} catch (Exception e) {
System.err.println(
"Problem with getUsersOnMembership method: "
+ e.getClass().getName()
+ ": "
+ e.getMessage());
}
return result;
}
public class MembershipDAO implements IMembershipManager {
private PreparedStatement addMembershipStmt;
private PreparedStatement deleteMembershipStmt;
private PreparedStatement getAllMembershipsStmt;
private PreparedStatement getMembershipStmt;
private PreparedStatement checkMembershipNameStmt;
private PreparedStatement updateMembershipStmt;
private PreparedStatement updateDurationStmt;
private PreparedStatement countCustomersInMembershipStmt;
private Constants cs = Constants.getInstance();
private Connection conn = null;
public MembershipDAO() {
try {
conn = ConnectionManager.getInstance();
getAllMembershipsStmt =
conn.prepareStatement("select * from " + Constants.MEMBERSHIP + " order by price");
getMembershipStmt =
conn.prepareStatement("select * from " + Constants.MEMBERSHIP + " where id = ?");
addMembershipStmt =
conn.prepareStatement(
"insert into " + Constants.MEMBERSHIP + " values (DEFAULT,?,?,?)",
Statement.RETURN_GENERATED_KEYS);
deleteMembershipStmt =
conn.prepareStatement("delete from " + Constants.MEMBERSHIP + " where id = ?");
checkMembershipNameStmt =
conn.prepareStatement("select * from " + Constants.MEMBERSHIP + " where name = ?");
updateMembershipStmt =
conn.prepareStatement(
"update "
+ Constants.MEMBERSHIP
+ " set name = ?,price = ?,duration = ? where id = ?");
countCustomersInMembershipStmt =
conn.prepareStatement(
"select count(*) from "
+ Constants.USERS
+ " u left outer join "
+ Constants.MEMBERSHIP
+ " m on m.id = u.membershipLevel where u.isAdmin = 0 and m.id = ?");
updateDurationStmt =
conn.prepareStatement(
"update " + Constants.USERS + " set memberExpiration = ? where membershipLevel = ?");
System.out.println("Instantiated MembershipDAO");
} catch (SQLException e) {
System.err.println(cs.getError(e.getErrorCode()));
} catch (Exception e) {
System.err.println(
"Problem with MembershipDAO constructor: "
+ e.getClass().getName()
+ ": "
+ e.getMessage());
}
}
@Override
public Membership getMembership(int id) {
Membership member = null;
try {
getMembershipStmt.setInt(1, id);
ResultSet rs = getMembershipStmt.executeQuery();
if (rs.next()) {
member =
new Membership(id, rs.getString("name"), rs.getDouble("price"), rs.getInt("duration"));
}
} catch (SQLException e) {
System.err.println(cs.getError(e.getErrorCode()));
} catch (Exception e) {
System.err.println(
"Problem with getMembership: " + e.getClass().getName() + ": " + e.getMessage());
}
return member;
}
@Override
public ArrayList<Membership> getAllMemberships() {
ArrayList<Membership> results = new ArrayList<Membership>();
try {
ResultSet rs = getAllMembershipsStmt.executeQuery();
while (rs.next()) {
results.add(
new Membership(
rs.getInt("id"),
rs.getString("name"),
rs.getDouble("price"),
rs.getInt("duration")));
}
} catch (SQLException e) {
System.err.println(cs.getError(e.getErrorCode()));
} catch (Exception e) {
System.err.println(
"Problem with getAllMemberships: " + e.getClass().getName() + ": " + e.getMessage());
}
return results;
}
@Override
public int addMembership(String name, double price, int duration) {
int membershipID = 0;
try {
addMembershipStmt.setString(1, name);
addMembershipStmt.setDouble(2, price);
addMembershipStmt.setInt(3, duration);
addMembershipStmt.executeUpdate();
ResultSet rs = addMembershipStmt.getGeneratedKeys();
if (rs.next()) {
membershipID = rs.getInt(1);
}
} catch (SQLException e) {
System.err.println(cs.getError(e.getErrorCode()));
} catch (Exception e) {
System.err.println(
"Problem with addMembership method: " + e.getClass().getName() + ": " + e.getMessage());
}
return membershipID;
}
@Override
public boolean deleteMembership(int id) {
try {
deleteMembershipStmt.setInt(1, id);
deleteMembershipStmt.executeUpdate();
return true;
} catch (SQLException e) {
System.err.println(cs.getError(e.getErrorCode()));
} catch (Exception e) {
System.err.println(
"Problem with deleteMembership method: "
+ e.getClass().getName()
+ ": "
+ e.getMessage());
}
return false;
}
@Override
public boolean isNameInUse(String name) {
try {
checkMembershipNameStmt.setString(1, name);
ResultSet rs = checkMembershipNameStmt.executeQuery();
if (rs.next()) {
return true;
}
} catch (SQLException e) {
System.err.println(cs.getError(e.getErrorCode()));
} catch (Exception e) {
System.err.println(
"Problem with isNameInUse method: " + e.getClass().getName() + ": " + e.getMessage());
}
return false;
}
@Override
public boolean updateMembership(int id, String name, double price, int duration) {
try {
updateMembershipStmt.setString(1, name);
updateMembershipStmt.setDouble(2, price);
updateMembershipStmt.setInt(3, duration);
updateMembershipStmt.setInt(4, id);
updateMembershipStmt.executeUpdate();
return true;
} catch (SQLException e) {
System.err.println(cs.getError(e.getErrorCode()));
} catch (Exception e) {
System.err.println(
"Problem with updateMembership method: "
+ e.getClass().getName()
+ ": "
+ e.getMessage());
}
return false;
}
@Override
public int getUsersOnMembership(int membershipID) {
int result = 0;
try {
countCustomersInMembershipStmt.setInt(1, membershipID);
ResultSet rs = countCustomersInMembershipStmt.executeQuery();
if (rs.next()) {
result = rs.getInt(1);
}
return result;
} catch (SQLException e) {
System.err.println(cs.getError(e.getErrorCode()));
} catch (Exception e) {
System.err.println(
"Problem with getUsersOnMembership method: "
+ e.getClass().getName()
+ ": "
+ e.getMessage());
}
return result;
}
@Override
public boolean updateExpirationDate(Date expirationDate, int membershipLevel) {
try {
updateDurationStmt.setDate(1, expirationDate);
updateDurationStmt.setInt(2, membershipLevel);
updateDurationStmt.executeUpdate();
return true;
} catch (SQLException e) {
System.err.println(cs.getError(e.getErrorCode()));
} catch (Exception e) {
System.err.println(
"Problem with updateExpirationDate method: "
+ e.getClass().getName()
+ ": "
+ e.getMessage());
}
return false;
}
}