107 lines
4.7 KiB
Java
107 lines
4.7 KiB
Java
/*
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* Copyright (C) 2022 GeorgH93
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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package at.pcgamingfreaks.Minepacks.Bukkit.Database.Migration;
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import at.pcgamingfreaks.Minepacks.Bukkit.Database.SQL;
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import at.pcgamingfreaks.Minepacks.Bukkit.Database.SQLite;
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import at.pcgamingfreaks.Minepacks.Bukkit.Minepacks;
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import org.intellij.lang.annotations.Language;
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import org.jetbrains.annotations.NotNull;
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import org.jetbrains.annotations.Nullable;
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import java.sql.*;
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import java.text.DateFormat;
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import java.text.SimpleDateFormat;
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import java.util.Date;
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@SuppressWarnings("ConstantConditions")
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public class SQLtoSQLMigration extends ToSQLMigration
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{
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private final @Language("SQL") String queryInsertUsers, queryInsertBackpacks;
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protected SQLtoSQLMigration(@NotNull Minepacks plugin, @NotNull SQL oldDb, @NotNull String dbType, boolean global) throws Exception
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{
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super(plugin, oldDb, dbType, global);
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queryInsertUsers = replacePlaceholders(newDb, "INSERT INTO {TablePlayers} ({FieldPlayerID},{FieldName},{FieldUUID}) VALUES (?,?,?);");
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queryInsertBackpacks = replacePlaceholders(newDb, "INSERT INTO {TableBackpacks} ({FieldBPOwner},{FieldBPITS},{FieldBPVersion},{FieldBPLastUpdate}) VALUES (?,?,?,?);");
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}
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@Override
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public @Nullable MigrationResult migrate() throws Exception
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{
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try(Connection readConnection = ((SQL) oldDb).getConnection(); Connection writeConnection = newDb.getConnection(); Statement readStatement = readConnection.createStatement())
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{
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int users = migrate("users", writeConnection, readStatement, "SELECT * FROM {TablePlayers};", queryInsertUsers);
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int backpacks = migrate("backpacks", writeConnection, readStatement, "SELECT * FROM {TableBackpacks};", queryInsertBackpacks);
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return new MigrationResult("Migrated " + users + " users and " + backpacks + " backpacks from " + oldDb.getClass().getSimpleName() + " to " + newDb.getClass().getSimpleName() + ".", MigrationResult.MigrationResultType.SUCCESS);
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}
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finally
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{
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newDb.close();
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}
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}
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private int migrate(@NotNull String type, @NotNull Connection writeConnection, @NotNull Statement readStatement, @Language("SQL") String readQuery, @Language("SQL") String insertQuery) throws Exception
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{
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int count = 0;
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byte mode = (byte) ((type.equals("users")) ? 0 : 1);
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plugin.getLogger().info("Migrate " + type + " ...");
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try(ResultSet resultSet = readStatement.executeQuery(replacePlaceholders((SQL) oldDb, readQuery));
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PreparedStatement preparedStatement = writeConnection.prepareStatement(replacePlaceholders(newDb, insertQuery)))
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{
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while(resultSet.next())
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{
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switch(mode)
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{
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case 0: migrateUser(resultSet, preparedStatement); break;
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case 1: migrateBackpack(resultSet, preparedStatement); break;
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}
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preparedStatement.addBatch();
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count++;
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}
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preparedStatement.executeBatch();
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}
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plugin.getLogger().info("Migrated " + count + " " + type + ".");
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return count;
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}
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private void migrateUser(@NotNull ResultSet usersResultSet, @NotNull PreparedStatement preparedStatement) throws Exception
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{
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int userId = usersResultSet.getInt((String) FIELD_PLAYER_ID.get(oldDb));
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preparedStatement.setInt(1, userId);
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preparedStatement.setString(2, usersResultSet.getString((String) FIELD_PLAYER_NAME.get(oldDb)));
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preparedStatement.setString(3, usersResultSet.getString((String) FIELD_PLAYER_UUID.get(oldDb)));
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}
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private void migrateBackpack(@NotNull ResultSet backpacksResultSet, @NotNull PreparedStatement preparedStatement) throws Exception
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{
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preparedStatement.setInt(1, backpacksResultSet.getInt((String) FIELD_BP_OWNER.get(oldDb)));
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preparedStatement.setBytes(2, backpacksResultSet.getBytes((String) FIELD_BP_ITS.get(oldDb)));
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preparedStatement.setInt(3, backpacksResultSet.getInt((String) FIELD_BP_VERSION.get(oldDb)));
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final DateFormat sqliteDateFormat = new SimpleDateFormat("yyyy-MM-dd");
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if(oldDb instanceof SQLite)
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{
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preparedStatement.setTimestamp(4, new Timestamp(sqliteDateFormat.parse(backpacksResultSet.getString((String) FIELD_BP_LAST_UPDATE.get(oldDb))).getTime()));
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}
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else
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{
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preparedStatement.setString(4, sqliteDateFormat.format(new Date(backpacksResultSet.getTimestamp((String) FIELD_BP_LAST_UPDATE.get(oldDb)).getTime())));
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}
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}
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} |