Nice stuff :)

src/main/java/io/github/paldiu/simplexcore/SimplexCore.java

@@ -33,6 +33,8 @@ public final class SimplexCore extends SimplexAddon<SimplexCore> {
         try {
             Constants.getRegistry().register(this);
             Constants.getCommandLoader().classpath(Command_info.class).load();
+            Constants.getConfig().reload();
+            //
             SimplexListener.register(new ServerPluginListener(), this);
             new Announcer();
         } catch (Exception ex) {

src/main/java/io/github/paldiu/simplexcore/config/Json.java

@@ -0,0 +1,5 @@
+package io.github.paldiu.simplexcore.config;
+
+public class Json {
+    // TODO: Write actual JSON implementations.
+}

src/main/java/io/github/paldiu/simplexcore/config/JsonFactory.java

@@ -1,32 +1,5 @@
 package io.github.paldiu.simplexcore.config;
 
-import io.github.paldiu.simplexcore.plugin.SimplexAddon;
-import io.github.paldiu.simplexcore.utils.Trio;
-
-import java.io.File;
-
 public final class JsonFactory {
-    private final SimplexAddon<?> plugin;
+    // TODO: Write a JSON Object Factory.
-    private String resourcePath;
-    private File directory;
-    private String fileName;
-
-    public JsonFactory(SimplexAddon<?> plugin) {
-        this.plugin = plugin;
-    }
-
-    public JsonFactory setPathways(String resourcePath, File directory, String fileName) {
-        this.resourcePath = resourcePath;
-        this.directory = directory;
-        this.fileName = fileName;
-        return this;
-    }
-
-    public JsonFactory setDefaultPathways() {
-        return setPathways("data.json", plugin.getDataFolder(), "data.json");
-    }
-
-    public Trio<String, File, String> pathways() {
-        return new Trio<>(resourcePath, directory, fileName);
-    }
 }

src/main/java/io/github/paldiu/simplexcore/config/Yaml.java

@@ -0,0 +1,161 @@
+package io.github.paldiu.simplexcore.config;
+
+import io.github.paldiu.simplexcore.functional.Guard;
+import io.github.paldiu.simplexcore.plugin.SimplexAddon;
+import io.github.paldiu.simplexcore.utils.Bean;
+import io.github.paldiu.simplexcore.utils.Constants;
+import io.github.paldiu.simplexcore.utils.Utilities;
+import org.bukkit.configuration.ConfigurationSection;
+import org.bukkit.configuration.file.FileConfiguration;
+import org.bukkit.configuration.file.YamlConfiguration;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.NotDirectoryException;
+import java.util.List;
+
+public final class Yaml {
+    private final SimplexAddon<?> plugin;
+    private final String fileName;
+    private final File directory;
+    private final String resourcePath;
+    private FileConfiguration config;
+    private File file;
+
+    Yaml(SimplexAddon<?> plugin, String fileName, File directory, String resourcePath) {
+        if (!fileName.endsWith(".yml")) {
+            fileName+=".yml";
+        }
+
+        if (!resourcePath.endsWith(".yml")) {
+            resourcePath+=".yml";
+        }
+
+        this.plugin = plugin;
+        this.fileName = fileName;
+        this.directory = directory;
+        this.resourcePath = resourcePath;
+    }
+
+    public final void set(String path, Object value) {
+        this.getConfig().set(path, value);
+    }
+
+    public boolean contains(String path) {
+        return this.getConfig().contains(path);
+    }
+
+    public ConfigurationSection getConfigurationSection(String path) {
+        return this.getConfig().getConfigurationSection(path);
+    }
+
+    public List<String> getStringList(String path) {
+        return this.getConfig().getStringList(path);
+    }
+
+    public long getLong(String path) {
+        return this.getConfig().getLong(path);
+    }
+
+    public List<?> getList(String path) {
+        return this.getConfig().getList(path);
+    }
+
+    public boolean getBoolean(String path) {
+        return this.getConfig().getBoolean(path);
+    }
+
+    public int getInt(String path) {
+        return this.getConfig().getInt(path);
+    }
+
+    public double getDouble(String path) {
+        return this.getConfig().getDouble(path);
+    }
+
+    public String getString(String path) {
+        return this.getConfig().getString(path);
+    }
+
+    public long getLong(String path, long def) {
+        return this.getConfig().getLong(path, def);
+    }
+
+    public List<?> getList(String path, List<?> def) {
+        return this.getConfig().getList(path, def);
+    }
+
+    public boolean getBoolean(String path, boolean def) {
+        return this.getConfig().getBoolean(path, def);
+    }
+
+    public int getInt(String path, int def) {
+        return this.getConfig().getInt(path, def);
+    }
+
+    public double getDouble(String path, double def) {
+        return this.getConfig().getDouble(path, def);
+    }
+
+    public String getString(String path, String def) {
+        return this.getConfig().getString(path, def);
+    }
+
+    public Object get(String path, Object def) {
+        return this.getConfig().get(path, def);
+    }
+
+    public final void reload() {
+        if (this.directory.exists()) { // Directory exist?
+            if (!this.directory.isDirectory()) { // File is directory?
+                try { // Not directory may contain important info!
+                    throw new NotDirectoryException("'" + this.directory.getName() + "' is not a directory.");
+                } catch (NotDirectoryException e) {
+                    e.printStackTrace();
+                }
+            }
+        } else { // Directory doesn't exist.
+            this.directory.mkdir(); // Make directory
+        }
+        this.file = new File(this.directory, this.fileName);
+        boolean created = false;
+        if (!file.exists()) {
+            if (this.resourcePath != null) {
+                if (plugin.getResource(resourcePath) != null) {
+                    plugin.getLogger().info("Attempting to create '" + this.fileName + "' from resources.");
+                    plugin.saveResource(resourcePath, false);
+                }
+            }
+            created = true;
+        }
+        this.config = YamlConfiguration.loadConfiguration(this.file);
+        if (created) create();
+        onReload();
+    }
+
+    public final void save() throws IOException {
+        config.save(file);
+    }
+
+    public final boolean exists() {
+        return this.file.exists();
+    }
+
+    public final FileConfiguration getConfig() {
+        return this.config;
+    }
+
+    /**
+     * Called when a file is created.
+     */
+    public void create() {
+        Constants.getLogger().info("File created!");
+    }
+
+    /**
+     * Called when then file is reloaded
+     */
+    public void onReload() {
+        Constants.getLogger().info("The plugin configuration has been reloaded!");
+    }
+}

src/main/java/io/github/paldiu/simplexcore/config/YamlFactory.java

@@ -15,14 +15,14 @@ public final class YamlFactory {
         this.plugin = plugin;
     }
 
-    public YamlFactory setPathways(String resourcePath, File directory, String fileName) {
+    public Yaml setPathways(String resourcePath, File directory, String fileName) {
         this.resourcePath = resourcePath;
         this.directory = directory;
         this.fileName = fileName;
-        return this;
+        return new Yaml(plugin, resourcePath, directory, fileName);
     }
 
-    public YamlFactory setDefaultPathways() {
+    public Yaml setDefaultPathways() {
         return setPathways("config.yml", plugin.getDataFolder(), "config.yml");
     }
 

src/main/java/io/github/paldiu/simplexcore/functional/Guard.java

@@ -0,0 +1,11 @@
+package io.github.paldiu.simplexcore.functional;
+
+@FunctionalInterface
+public interface Guard {
+    void verify();
+
+    default Guard after(Guard clause) {
+        clause.verify();
+        return this;
+    }
+}

src/main/java/io/github/paldiu/simplexcore/utils/Constants.java

@@ -2,6 +2,8 @@ package io.github.paldiu.simplexcore.utils;
 
 import io.github.paldiu.simplexcore.SimplexCore;
 import io.github.paldiu.simplexcore.command.CommandLoader;
+import io.github.paldiu.simplexcore.config.Yaml;
+import io.github.paldiu.simplexcore.config.YamlFactory;
 import io.github.paldiu.simplexcore.plugin.AddonRegistry;
 import io.github.paldiu.simplexcore.plugin.DependencyManagement;
 import org.bukkit.Server;
@@ -18,6 +20,8 @@ public final class Constants {
     private static final PluginManager manager = server.getPluginManager();
     private static final BukkitScheduler scheduler = server.getScheduler();
     private static final DependencyManagement dpm = new DependencyManagement();
+    private static final Yaml config = new YamlFactory(plugin).setDefaultPathways();
+    private static final TimeValues time = new TimeValues();
 
     public static SimplexCore getPlugin() {
         return plugin;
@@ -52,7 +56,11 @@ public final class Constants {
     }
 
     public static TimeValues getTimeValues() {
-        return new TimeValues();
+        return time;
+    }
+
+    public static Yaml getConfig() {
+        return config;
     }
 
     public static class TimeValues {

src/main/java/io/github/paldiu/simplexcore/utils/Utilities.java

@@ -1,5 +1,6 @@
 package io.github.paldiu.simplexcore.utils;
 
+import io.github.paldiu.simplexcore.functional.Guard;
 import io.github.paldiu.simplexcore.functional.Validate;
 
 import java.util.Arrays;
@@ -31,8 +32,4 @@ public final class Utilities {
     public static <K, V> void mapFE(Map<K, V> map, BiConsumer<K, V> actions) {
         map.forEach(actions);
     }
-
-    public static boolean isValid(Validate validate) {
-        return validate.isValid();
-    }
 }