#575 Hotfix for reload support

- Create temporary method for reloading any stateful entities -> a lot of duplicated code, to be fixed soon within #432
- Remove unused methods

src/main/java/fr/xephi/authme/AuthMe.java

@@ -330,6 +330,91 @@ public class AuthMe extends JavaPlugin {
         ConsoleLogger.info("AuthMe " + this.getDescription().getVersion() + " correctly enabled!");
     }
 
+    /** Temporary method for reloading all stateful entities. */
+    // TODO #432: Merge this with onEnable, not running things like Metrics multiple times where it would be bad
+    // Until then this method is a shameful copy of major parts of onEnable()...
+    public void reloadEntities() {
+        // Set various instances
+        server = getServer();
+        plugin = this;
+        ConsoleLogger.setLogger(getLogger());
+
+        setPluginInfos();
+
+        // Load settings and custom configurations, if it fails, stop the server due to security reasons.
+        newSettings = createNewSetting();
+        if (newSettings == null) {
+            ConsoleLogger.showError("Could not load configuration. Aborting.");
+            server.shutdown();
+            return;
+        }
+        ConsoleLogger.setLoggingOptions(newSettings.getProperty(SecuritySettings.USE_LOGGING),
+            new File(getDataFolder(), "authme.log"));
+
+        // Old settings manager
+        if (!loadSettings()) {
+            server.shutdown();
+            setEnabled(false);
+            return;
+        }
+
+        messages = new Messages(newSettings.getMessagesFile(), newSettings.getDefaultMessagesFile());
+
+        // Connect to the database and setup tables
+        try {
+            setupDatabase(newSettings);
+        } catch (Exception e) {
+            ConsoleLogger.logException("Fatal error occurred during database connection! "
+                + "Authme initialization aborted!", e);
+            stopOrUnload();
+            return;
+        }
+
+        passwordSecurity = new PasswordSecurity(getDataSource(), newSettings.getProperty(SecuritySettings.PASSWORD_HASH),
+            Bukkit.getPluginManager(), newSettings.getProperty(SecuritySettings.SUPPORT_OLD_PASSWORD_HASH));
+
+        // Set up the permissions manager and command handler
+        permsMan = initializePermissionsManager();
+        commandHandler = initializeCommandHandler(permsMan, messages, passwordSecurity, newSettings);
+
+        // Download and load GeoIp.dat file if absent
+        GeoLiteAPI.isDataAvailable();
+
+        // Set up the mail API
+        setupMailApi();
+
+        // Hooks
+        // Check Combat Tag Plus Version
+        checkCombatTagPlus();
+
+        // Check Multiverse
+        checkMultiverse();
+
+        // Check Essentials
+        checkEssentials();
+
+        // Check if the ProtocolLib is available. If so we could listen for
+        // inventory protection
+        checkProtocolLib();
+        // End of Hooks
+
+        dataManager = new DataManager(this);
+
+        ProcessService processService = new ProcessService(newSettings, messages, this);
+        management = new Management(this, processService, database, PlayerCache.getInstance());
+
+        // Set up the BungeeCord hook
+        setupBungeeCordHook();
+
+        // Reload support hook
+        reloadSupportHook();
+
+        Spawn.reload();
+
+        // Show settings warnings
+        showSettingsWarnings();
+    }
+
     /**
      * Set up the mail API, if enabled.
      */

src/main/java/fr/xephi/authme/cache/backup/JsonCache.java

@@ -35,29 +35,6 @@ public class JsonCache {
             .create();
     }
 
-    public void createCache(Player player, PlayerData playerData) {
-        if (player == null) {
-            return;
-        }
-
-        String name = player.getName().toLowerCase();
-        File file = new File(cacheDir, name + File.separator + "cache.json");
-        if (file.exists()) {
-            return;
-        }
-        if (!file.getParentFile().exists() && !file.getParentFile().mkdirs()) {
-            return;
-        }
-
-        try {
-            String data = gson.toJson(playerData);
-            Files.touch(file);
-            Files.write(data, file, Charsets.UTF_8);
-        } catch (IOException e) {
-            ConsoleLogger.writeStackTrace(e);
-        }
-    }
-
     public PlayerData readCache(Player player) {
         String name = player.getName().toLowerCase();
         File file = new File(cacheDir, name + File.separator + "cache.json");

src/main/java/fr/xephi/authme/command/CommandService.java

@@ -12,7 +12,6 @@ import fr.xephi.authme.settings.NewSetting;
 import fr.xephi.authme.settings.domain.Property;
 import org.bukkit.command.CommandSender;
 
-import java.io.File;
 import java.util.List;
 
 /**
@@ -163,15 +162,6 @@ public class CommandService {
         return messages.retrieve(key);
     }
 
-    /**
-     * Change the messages instance to retrieve messages from the given file.
-     *
-     * @param file The new file to read messages from
-     */
-    public void reloadMessages(File file) {
-        messages.reload(file);
-    }
-
     /**
      * Retrieve the given property's value.
      *

src/main/java/fr/xephi/authme/command/executable/authme/ReloadCommand.java

@@ -5,7 +5,6 @@ import fr.xephi.authme.ConsoleLogger;
 import fr.xephi.authme.command.CommandService;
 import fr.xephi.authme.command.ExecutableCommand;
 import fr.xephi.authme.output.MessageKey;
-import fr.xephi.authme.settings.Spawn;
 import org.bukkit.command.CommandSender;
 
 import java.util.List;
@@ -19,13 +18,7 @@ public class ReloadCommand implements ExecutableCommand {
     public void executeCommand(CommandSender sender, List<String> arguments, CommandService commandService) {
         AuthMe plugin = commandService.getAuthMe();
         try {
-            commandService.getSettings().reload();
+            plugin.reloadEntities();
-            commandService.reloadMessages(commandService.getSettings().getMessagesFile());
-            Spawn.reload();
-            // TODO #432: We should not reload only certain plugin entities but actually reinitialize all elements,
-            // i.e. here in the future we might not have setupDatabase() but Authme.onEnable(), maybe after
-            // a call to some destructor method
-            plugin.setupDatabase(commandService.getSettings());
             commandService.send(sender, MessageKey.CONFIG_RELOAD_SUCCESS);
         } catch (Exception e) {
             sender.sendMessage("Error occurred during reload of AuthMe: aborting");

src/main/java/fr/xephi/authme/datasource/CacheDataSource.java

@@ -162,12 +162,6 @@ public class CacheDataSource implements DataSource {
         }
     }
 
-    @Override
-    public void reload() { // unused method
-        source.reload();
-        cachedAuths.invalidateAll();
-    }
-
     @Override
     public synchronized boolean updateEmail(final PlayerAuth auth) {
         boolean result = source.updateEmail(auth);

src/main/java/fr/xephi/authme/datasource/DataSource.java

@@ -121,8 +121,6 @@ public interface DataSource {
      */
     void close();
 
-    void reload();
-
     /**
      * Method purgeBanned.
      *

src/main/java/fr/xephi/authme/datasource/FlatFile.java

@@ -419,10 +419,6 @@ public class FlatFile implements DataSource {
     public synchronized void close() {
     }
 
-    @Override
-    public void reload() {
-    }
-
     @Override
     public boolean updateEmail(PlayerAuth auth) {
         if (!isAuthAvailable(auth.getNickname())) {

src/main/java/fr/xephi/authme/datasource/MySQL.java

@@ -3,7 +3,6 @@ package fr.xephi.authme.datasource;
 import com.google.common.annotations.VisibleForTesting;
 import com.zaxxer.hikari.HikariDataSource;
 import com.zaxxer.hikari.pool.HikariPool.PoolInitializationException;
-import fr.xephi.authme.AuthMe;
 import fr.xephi.authme.ConsoleLogger;
 import fr.xephi.authme.cache.auth.PlayerAuth;
 import fr.xephi.authme.security.HashAlgorithm;
@@ -695,17 +694,6 @@ public class MySQL implements DataSource {
         return false;
     }
 
-    @Override
-    public void reload() {
-        try {
-            reloadArguments();
-        } catch (Exception ex) {
-            ConsoleLogger.logException("Can't reconnect to MySQL database... " +
-                "Please check your MySQL configuration! Encountered", ex);
-            AuthMe.getInstance().stopOrUnload();
-        }
-    }
-
     @Override
     public synchronized void close() {
         if (ds != null && !ds.isClosed()) {

src/main/java/fr/xephi/authme/datasource/SQLite.java

@@ -359,10 +359,6 @@ public class SQLite implements DataSource {
         }
     }
 
-    @Override
-    public void reload() {
-    }
-
     private void close(Statement st) {
         if (st != null) {
             try {

src/main/java/fr/xephi/authme/util/GeoLiteAPI.java

@@ -23,7 +23,7 @@ public class GeoLiteAPI {
     private static Thread downloadTask;
 
     /**
-     * Download (if absent) the GeoIpLite data file and then try to load it.
+     * Download (if absent or old) the GeoIpLite data file and then try to load it.
      *
      * @return True if the data is available, false otherwise.
      */

src/test/java/fr/xephi/authme/command/CommandServiceTest.java

@@ -9,15 +9,14 @@ import fr.xephi.authme.permission.PermissionsManager;
 import fr.xephi.authme.process.Management;
 import fr.xephi.authme.security.PasswordSecurity;
 import fr.xephi.authme.settings.NewSetting;
-import fr.xephi.authme.settings.properties.SecuritySettings;
 import fr.xephi.authme.settings.domain.Property;
+import fr.xephi.authme.settings.properties.SecuritySettings;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 import org.junit.Before;
 import org.junit.Test;
 import org.mockito.ArgumentCaptor;
 
-import java.io.File;
 import java.util.Arrays;
 import java.util.List;
 
@@ -187,18 +186,6 @@ public class CommandServiceTest {
         verify(settings).getProperty(property);
     }
 
-    @Test
-    public void shouldReloadMessages() {
-        // given
-        File file = new File("some/bogus-file.test");
-
-        // when
-        commandService.reloadMessages(file);
-
-        // then
-        verify(messages).reload(file);
-    }
-
     @Test
     public void shouldReturnSettings() {
         // given/when