Load config.yaml using its own charset

Strings in the config are therefore respected by the configured charset

src/main/java/config/YamlConfig.java

@@ -1,32 +1,58 @@
 package config;
 
 import com.esotericsoftware.yamlbeans.YamlReader;
+import constants.string.CharsetConstants;
 
 import java.io.FileNotFoundException;
 import java.io.FileReader;
 import java.io.IOException;
+import java.nio.charset.StandardCharsets;
 import java.util.List;
 
 
 public class YamlConfig {
-
-    public static final YamlConfig config = fromFile("config.yaml");
+    private static final String CONFIG_FILE_NAME = "config.yaml";
+    public static final YamlConfig config = loadConfig(CONFIG_FILE_NAME);
     
     public List<WorldConfig> worlds;
     public ServerConfig server;
 
-    public static YamlConfig fromFile(String filename) {
+    private static YamlConfig loadConfig(String fileName) {
         try {
-            YamlReader reader = new YamlReader(new FileReader(filename));
+            YamlReader reader = new YamlReader(new FileReader(fileName, CharsetConstants.CHARSET));
             YamlConfig config = reader.read(YamlConfig.class);
             reader.close();
             return config;
-        } catch (FileNotFoundException e) {
-            String message = "Could not read config file " + filename + ": " + e.getMessage();
-            throw new RuntimeException(message);
         } catch (IOException e) {
-            String message = "Could not successfully parse config file " + filename + ": " + e.getMessage();
-            throw new RuntimeException(message);
+            throw new RuntimeException(getLoadConfigErrorMessage(e));
+        }
+    }
+
+    private static String getLoadConfigErrorMessage(IOException e) {
+        if (e instanceof FileNotFoundException) {
+            return "Could not read config file " + CONFIG_FILE_NAME + ": " + e.getMessage();
+        }
+
+        return "Could not successfully parse config file " + CONFIG_FILE_NAME + ": " + e.getMessage();
+    }
+
+    public static String loadCharset() {
+        try {
+            YamlReader reader = new YamlReader(new FileReader(CONFIG_FILE_NAME, StandardCharsets.US_ASCII));
+            reader.getConfig().readConfig.setIgnoreUnknownProperties(true);
+            StrippedYamlConfig charsetConfig = reader.read(StrippedYamlConfig.class);
+            reader.close();
+            return charsetConfig.server.CHARSET;
+        } catch (IOException e) {
+            throw new RuntimeException(getLoadConfigErrorMessage(e));
+        }
+    }
+
+    private static class StrippedYamlConfig {
+        public StrippedServerConfig server;
+
+        private static class StrippedServerConfig {
+            public String CHARSET;
         }
     }
 }

src/main/java/constants/string/CharsetConstants.java

@@ -56,7 +56,7 @@ public class CharsetConstants {
     }
 
     private static Charset loadCharset() {
-        String configCharset = YamlConfig.config.server.CHARSET;
+        String configCharset = YamlConfig.loadCharset();
         if (configCharset != null) {
             Language language = Language.fromCharset(configCharset);
             return Charset.forName(language.getCharset());