Sat, 09 May 2020 14:26:31 +0200
converts to maven project
universe@21 | 1 | /* |
universe@21 | 2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
universe@21 | 3 | * |
universe@24 | 4 | * Copyright 2018 Mike Becker. All rights reserved. |
universe@21 | 5 | * |
universe@21 | 6 | * Redistribution and use in source and binary forms, with or without |
universe@21 | 7 | * modification, are permitted provided that the following conditions are met: |
universe@21 | 8 | * |
universe@21 | 9 | * 1. Redistributions of source code must retain the above copyright |
universe@21 | 10 | * notice, this list of conditions and the following disclaimer. |
universe@21 | 11 | * |
universe@21 | 12 | * 2. Redistributions in binary form must reproduce the above copyright |
universe@21 | 13 | * notice, this list of conditions and the following disclaimer in the |
universe@21 | 14 | * documentation and/or other materials provided with the distribution. |
universe@21 | 15 | * |
universe@21 | 16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
universe@21 | 17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
universe@21 | 18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
universe@21 | 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
universe@21 | 20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
universe@21 | 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
universe@21 | 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
universe@21 | 23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
universe@21 | 24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
universe@21 | 25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
universe@21 | 26 | * POSSIBILITY OF SUCH DAMAGE. |
universe@21 | 27 | * |
universe@21 | 28 | */ |
universe@21 | 29 | package de.uapcore.lightpit.entities; |
universe@21 | 30 | |
universe@21 | 31 | import de.uapcore.lightpit.LightPITModule; |
universe@21 | 32 | import java.sql.Connection; |
universe@21 | 33 | import java.sql.PreparedStatement; |
universe@21 | 34 | import java.sql.ResultSet; |
universe@21 | 35 | import java.sql.SQLException; |
universe@21 | 36 | import java.sql.Statement; |
universe@21 | 37 | import java.util.ArrayList; |
universe@21 | 38 | import java.util.List; |
universe@21 | 39 | import java.util.Map; |
universe@21 | 40 | import java.util.Set; |
universe@21 | 41 | |
universe@21 | 42 | public abstract class ModuleDao { |
universe@21 | 43 | |
universe@21 | 44 | /** |
universe@26 | 45 | * Maps database columns to POJO fields. |
universe@26 | 46 | * @param result the database result set |
universe@26 | 47 | * @param mod the POJO |
universe@26 | 48 | * @throws SQLException |
universe@26 | 49 | */ |
universe@26 | 50 | protected void mapColumns(ResultSet result, Module mod) throws SQLException { |
universe@26 | 51 | mod.setModID(result.getInt("modid")); |
universe@26 | 52 | mod.setClassname(result.getString("classname")); |
universe@26 | 53 | mod.setVisible(result.getBoolean("visible")); |
universe@26 | 54 | } |
universe@26 | 55 | |
universe@26 | 56 | |
universe@26 | 57 | /** |
universe@21 | 58 | * Must return a prepared statement for a single object query with the specified properties. |
universe@21 | 59 | * |
universe@21 | 60 | * <ul> |
universe@21 | 61 | * <li>Parameter 1: classname</li> |
universe@21 | 62 | * <li>Result field 1: visible</li> |
universe@21 | 63 | * </ul> |
universe@21 | 64 | * |
universe@21 | 65 | * @param conn the connection to use |
universe@21 | 66 | * @return the prepared statement |
universe@21 | 67 | * @throws SQLException |
universe@21 | 68 | */ |
universe@21 | 69 | protected PreparedStatement moduleCheckStatement(Connection conn) throws SQLException { |
universe@21 | 70 | return conn.prepareStatement("SELECT visible FROM lpitcore_module WHERE classname = ?"); |
universe@21 | 71 | } |
universe@21 | 72 | |
universe@21 | 73 | /** |
universe@21 | 74 | * Must return a prepared statement for insertion with the specified properties. |
universe@21 | 75 | * |
universe@21 | 76 | * <ul> |
universe@21 | 77 | * <li>Parameter 1: classname</li> |
universe@21 | 78 | * <li>Parameter 2: visible</li> |
universe@21 | 79 | * </ul> |
universe@21 | 80 | * |
universe@21 | 81 | * @param conn the connection to use |
universe@21 | 82 | * @return the prepared statement |
universe@21 | 83 | * @throws SQLException |
universe@21 | 84 | */ |
universe@21 | 85 | protected PreparedStatement moduleInsertStatement(Connection conn) throws SQLException { |
universe@21 | 86 | return conn.prepareStatement("INSERT INTO lpitcore_module (classname, visible) VALUES (?, ?)"); |
universe@21 | 87 | } |
universe@21 | 88 | |
universe@21 | 89 | /** |
universe@27 | 90 | * Synchronizes a set of registered module classes with the database. |
universe@21 | 91 | * |
universe@21 | 92 | * Inserts module classes which are not known to the database and sets them to be visible by default. |
universe@21 | 93 | * Module classes known to the database, which are not in the given set, are ignored. |
universe@21 | 94 | * |
universe@21 | 95 | * @param conn the connection to use |
universe@21 | 96 | * @param moduleSet the module set to synchronize |
universe@21 | 97 | * @throws SQLException |
universe@21 | 98 | */ |
universe@27 | 99 | public final void syncRegisteredModuleClasses(Connection conn, Set<Map.Entry<String, LightPITModule>> moduleSet) throws SQLException { |
universe@21 | 100 | |
universe@21 | 101 | PreparedStatement |
universe@21 | 102 | check = moduleCheckStatement(conn), |
universe@21 | 103 | insert = moduleInsertStatement(conn); |
universe@21 | 104 | insert.setBoolean(2, true); |
universe@21 | 105 | // update/delete not required, we do this in the module management UI |
universe@21 | 106 | |
universe@27 | 107 | for (Map.Entry<String, LightPITModule> modEntry : moduleSet) { |
universe@27 | 108 | if (modEntry.getValue().systemModule()) continue; |
universe@21 | 109 | |
universe@27 | 110 | check.setString(1, modEntry.getKey()); |
universe@21 | 111 | try (ResultSet r = check.executeQuery()) { |
universe@27 | 112 | if (!r.next()) { |
universe@27 | 113 | insert.setString(1, modEntry.getKey()); |
universe@21 | 114 | insert.executeUpdate(); |
universe@21 | 115 | } |
universe@21 | 116 | } |
universe@21 | 117 | } |
universe@21 | 118 | } |
universe@21 | 119 | |
universe@21 | 120 | /** |
universe@21 | 121 | * Returns a list of all modules known by the database. |
universe@21 | 122 | * |
universe@21 | 123 | * Keep in mind, that system modules are never known to the database. |
universe@21 | 124 | * |
universe@21 | 125 | * @param conn the connection to use |
universe@21 | 126 | * @return a list of all modules known by the database |
universe@21 | 127 | * @throws SQLException |
universe@21 | 128 | */ |
universe@21 | 129 | public List<Module> listAll(Connection conn) throws SQLException { |
universe@21 | 130 | List<Module> list = new ArrayList<>(); |
universe@27 | 131 | try (Statement stmt = conn.createStatement(); |
universe@21 | 132 | ResultSet result = stmt.executeQuery("SELECT * FROM lpitcore_module")) { |
universe@21 | 133 | while (result.next()) { |
universe@21 | 134 | final Module mod = new Module(); |
universe@26 | 135 | mapColumns(result, mod); |
universe@21 | 136 | list.add(mod); |
universe@21 | 137 | } |
universe@21 | 138 | } |
universe@21 | 139 | return list; |
universe@21 | 140 | } |
universe@21 | 141 | } |