src/java/de/uapcore/lightpit/entities/UserDao.java

changeset 26
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parent 24
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equal deleted inserted replaced
25:559da0ee9bb7 26:65d5a0ca49ae
1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2018 Mike Becker. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
28 */
29 package de.uapcore.lightpit.entities;
30
31 import java.sql.Connection;
32 import java.sql.ResultSet;
33 import java.sql.SQLException;
34 import java.sql.Statement;
35 import java.util.ArrayList;
36 import java.util.List;
37 import java.util.Optional;
38
39 public abstract class UserDao {
40
41 /**
42 * Maps SQL columns to POJO fields.
43 * @param result the database result set
44 * @param user the POJO
45 * @throws SQLException
46 */
47 protected void mapColumns(ResultSet result, User user) throws SQLException {
48 user.setUserID(result.getInt("userid"));
49 user.setUsername(result.getString("username"));
50 user.setGivenname(Optional.ofNullable(result.getString("givenname")));
51 user.setLastname(Optional.ofNullable(result.getString("lastname")));
52 }
53
54 /**
55 * Returns a list of all users ordered by their username.
56 *
57 * Does not return reserved system users with negative user IDs.
58 *
59 * @param conn the connection to use
60 * @return a list of all users
61 * @throws SQLException
62 */
63 public List<User> listAll(Connection conn) throws SQLException {
64 List<User> list = new ArrayList<>();
65 try (
66 Statement stmt = conn.createStatement();
67 ResultSet result = stmt.executeQuery(
68 "SELECT * FROM lpitcore_user WHERE userid >= 0 ORDER BY username")) {
69 while (result.next()) {
70 final User user = new User();
71 mapColumns(result, user);
72 list.add(user);
73 }
74 }
75 return list;
76 }
77 }

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