Configurable automatic database backups.

L2J_Mobius_1.0_Ertheia/java/com/l2jmobius/commons/database/DatabaseBackup.java

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+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.l2jmobius.commons.database;
+
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.text.SimpleDateFormat;
+import java.time.LocalDateTime;
+import java.time.ZoneOffset;
+import java.util.Date;
+import java.util.concurrent.TimeUnit;
+
+import com.l2jmobius.Config;
+import com.l2jmobius.Server;
+
+/**
+ * @author Mobius
+ */
+public class DatabaseBackup
+{
+	public static void performBackup()
+	{
+		// Delete old files.
+		if (Config.BACKUP_DAYS > 0)
+		{
+			final long cut = LocalDateTime.now().minusDays(Config.BACKUP_DAYS).toEpochSecond(ZoneOffset.UTC);
+			final Path path = Paths.get(Config.BACKUP_PATH);
+			try
+			{
+				Files.list(path).filter(n ->
+				{
+					try
+					{
+						return Files.getLastModifiedTime(n).to(TimeUnit.SECONDS) < cut;
+					}
+					catch (Exception ex)
+					{
+						return false;
+					}
+				}).forEach(n ->
+				{
+					try
+					{
+						Files.delete(n);
+					}
+					catch (Exception ex)
+					{
+					}
+				});
+			}
+			catch (Exception e)
+			{
+			}
+		}
+		
+		// Dump to file.
+		final String mysqldumpPath = System.getProperty("os.name").toLowerCase().indexOf("win") >= 0 ? Config.MYSQL_BIN_PATH : "";
+		try
+		{
+			final Process process = Runtime.getRuntime().exec(mysqldumpPath + "mysqldump -u " + Config.DATABASE_LOGIN + (Config.DATABASE_PASSWORD.trim().isEmpty() ? "" : " -p" + Config.DATABASE_PASSWORD) + " " + Config.DATABASE_URL.replace("jdbc:mysql://", "").replaceAll(".*\\/|\\?.*", "") + " -r " + Config.BACKUP_PATH + (Server.serverMode == Server.MODE_GAMESERVER ? "game" : "login") + new SimpleDateFormat("_yyyy_MM_dd_HH_mm'.sql'").format(new Date()));
+			process.waitFor();
+		}
+		catch (Exception e)
+		{
+		}
+	}
+}