Added SQLite support for Nukkit

Affects issues:
- Close #1472

Plan/build.gradle

@@ -84,6 +84,7 @@ subprojects {
     ext.caffeineVersion = "2.8.0"
     ext.h2Version = "1.4.199"
     ext.mysqlVersion = "8.0.22"
+    ext.sqliteVersion = "3.34.0"
     ext.hikariVersion = "3.4.5"
     ext.slf4jVersion = "1.7.30"
     ext.geoIpVersion = "2.15.0"
@@ -140,7 +141,7 @@ subprojects {
         testCompile "com.jayway.awaitility:awaitility:1.7.0"         // Awaitility (Concurrent wait conditions)
 
         // Testing dependencies required by Plan
-        testCompile "org.xerial:sqlite-jdbc:3.34.0"     // SQLite
+        testCompile "org.xerial:sqlite-jdbc:$sqliteVersion"     // SQLite
         testCompile "mysql:mysql-connector-java:$mysqlVersion" // MySQL
     }
 

Plan/common/build.gradle

@@ -10,6 +10,7 @@ dependencies {
     compile "com.github.ben-manes.caffeine:caffeine:$caffeineVersion"
     compile "com.h2database:h2:$h2Version"
     compile "mysql:mysql-connector-java:$mysqlVersion"
+    compile "org.xerial:sqlite-jdbc:$sqliteVersion"
     compile "com.zaxxer:HikariCP:$hikariVersion"
     compile "org.slf4j:slf4j-nop:$slf4jVersion"
     compile "org.slf4j:slf4j-api:$slf4jVersion"

Plan/common/src/main/java/com/djrapitops/plan/settings/NukkitConfigSystem.java

@@ -19,7 +19,6 @@ package com.djrapitops.plan.settings;
 import com.djrapitops.plan.settings.config.ConfigReader;
 import com.djrapitops.plan.settings.config.PlanConfig;
 import com.djrapitops.plan.settings.config.changes.ConfigUpdater;
-import com.djrapitops.plan.settings.config.paths.DatabaseSettings;
 import com.djrapitops.plan.settings.config.paths.PluginSettings;
 import com.djrapitops.plan.settings.network.ServerSettingsManager;
 import com.djrapitops.plan.settings.theme.Theme;
@@ -43,7 +42,6 @@ public class NukkitConfigSystem extends ConfigSystem {
 
     private final ConfigUpdater configUpdater;
     private final ServerSettingsManager serverSettingsManager;
-    private boolean firstInstall;
 
     @Inject
     public NukkitConfigSystem(
@@ -62,7 +60,6 @@ public class NukkitConfigSystem extends ConfigSystem {
 
     @Override
     public void enable() {
-        firstInstall = !files.getConfigFile().exists();
         super.enable();
         if (config.isTrue(PluginSettings.PROXY_COPY_CONFIG)) {
             serverSettingsManager.enable();
@@ -81,10 +78,5 @@ public class NukkitConfigSystem extends ConfigSystem {
         try (ConfigReader reader = new ConfigReader(files.getResourceFromJar("config.yml").asInputStream())) {
             config.copyMissing(reader.read());
         }
-        String dbType = config.get(DatabaseSettings.TYPE);
-        if ("sqlite".equalsIgnoreCase(dbType)) {
-            if (!firstInstall) logger.warn("'SQLite' is not supported on Nukkit, switching to 'H2'.");
-            config.set(DatabaseSettings.TYPE, "H2");
-        }
     }
 }

Plan/common/src/main/java/com/djrapitops/plan/storage/database/H2DB.java

@@ -99,8 +99,10 @@ public class H2DB extends SQLDB {
 
     private void startConnectionPingTask() {
         stopConnectionPingTask();
-        logger.warn("H2 database is going to be deprecated in version 5.2. It is recommended to move to MySQL or SQLite when possible.");
+        logger.warn("! ! ! ---------- ! ! !");
+        logger.warn("H2 database is DEPRECATED and WILL STOP WORKING in version 5.4 - It is recommended to move to MySQL or SQLite when possible.");
         logger.warn("See https://github.com/plan-player-analytics/Plan/issues/1472 for details");
+        logger.warn("! ! ! ---------- ! ! !");
         try {
             // Maintains Connection.
             connectionPingTask = runnableFactory.create("DBConnectionPingTask " + getType().getName(),