Add option to set SQL connection properties, e.g. disable SSL

resources/config.yml

@@ -60,8 +60,11 @@ Database:
     Database: minecraft
     User: minecraft
     Password: minecraft
-    #The max amount of connections to the database the connection pool will open
+    # The max amount of connections to the database the connection pool will open
     MaxConnections: 2
+    # List of properties for your SQL connection. Can be used to disable SSL.
+    # Properties: ["useSSL=false"]
+    Properties: []
   # Tables settings for shared tables when using MySQL - Advanced MySQL Settings
   # Use these settings only if you know what you are doing!!!!
   # Do only change this settings if you know what you are doing and have some basic MySQL knowledge!!!

src/at/pcgamingfreaks/Minepacks/Bukkit/Database/Config.java

@@ -1,5 +1,5 @@
 /*
- *   Copyright (C) 2016 GeorgH93
+ *   Copyright (C) 2016, 2017 GeorgH93
  *
  *   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
@@ -110,7 +110,19 @@ public String getSQLPassword()
 
 	public int getSQLMaxConnections()
 	{
-		return config.getInt("Database.SQL.MaxConnections", 4);
+		return config.getInt("Database.SQL.MaxConnections", 2);
+	}
+
+	public String getSQLProperties()
+	{
+		List<String> list = config.getStringList("Database.MySQL.Properties", null);
+		StringBuilder str = new StringBuilder();
+		if(list == null) return "";
+		for(String s : list)
+		{
+			str.append("&").append(s);
+		}
+		return str.toString();
 	}
 
 	public String getUserTable()

src/at/pcgamingfreaks/Minepacks/Bukkit/Database/MySQL.java

@@ -1,5 +1,5 @@
 /*
- *   Copyright (C) 2016 GeorgH93
+ *   Copyright (C) 2016, 2017 GeorgH93
  *
  *   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
@@ -37,7 +37,7 @@ public MySQL(Minepacks mp)
 	protected HikariConfig getPoolConfig()
 	{
 		HikariConfig poolConfig = new HikariConfig();
-		poolConfig.setJdbcUrl("jdbc:mysql://" + plugin.config.getSQLHost() + "/" + plugin.config.getSQLDatabase() + "?allowMultiQueries=true&autoReconnect=true");
+		poolConfig.setJdbcUrl("jdbc:mysql://" + plugin.config.getSQLHost() + "/" + plugin.config.getSQLDatabase() + "?allowMultiQueries=true&autoReconnect=true" + plugin.config.getSQLProperties());
 		poolConfig.setUsername(plugin.config.getSQLUser());
 		poolConfig.setPassword(plugin.config.getSQLPassword());
 		poolConfig.setMinimumIdle(1);

src/at/pcgamingfreaks/Minepacks/Bukkit/Database/SQL.java

@@ -54,6 +54,7 @@ public SQL(Minepacks mp)
 		if(poolConfig != null)
 		{
 			poolConfig.setPoolName("Minepacks-Connection-Pool");
+			poolConfig.addDataSourceProperty("cachePrepStmts", "true");
 			dataSource = new HikariDataSource(poolConfig);
 		}