An updating YamlConfiguration wrapper for Spigot plugins.

UpdatingYamlConfiguration.java

package me.view.anchorbans.data;

import org.bukkit.configuration.InvalidConfigurationException;
import org.bukkit.configuration.file.FileConfiguration;
import org.bukkit.configuration.file.YamlConfiguration;
import org.bukkit.plugin.java.JavaPlugin;

import java.io.File;
import java.io.IOException;

public class UpdatingYamlConfiguration extends YamlConfiguration {
    private File configFile;
    private FileConfiguration config;
    private String fileName;
    private String rawPrefix;

    public UpdatingYamlConfiguration(JavaPlugin plugin, String name) {
        fileName = name + ".yml";
        rawPrefix = "[" + plugin.getName() + "] ";
        configFile = new File(plugin.getDataFolder(), fileName);
        if (!configFile.exists()) {
            configFile.getParentFile().mkdirs();
            plugin.saveResource(fileName, false);
        }
        loadFile();
        String configVersion = getString("version");
        String pluginVersion = plugin.getDescription().getVersion();
        if (configVersion == null) {
            set("version", pluginVersion);
            save();
            return;
        }
        if (configVersion.equals(pluginVersion)) {
            return;
        }
        YamlConfiguration clonedConfig;
        try {
            clonedConfig = (YamlConfiguration) this.clone();
        } catch (CloneNotSupportedException e) {
            System.out.println(rawPrefix + e.getStackTrace());
            return;
        }
        plugin.saveResource(fileName, true);
        for (String key : clonedConfig.getKeys(true)) {
            set(key, clonedConfig.get(key));
        }
        save();
    }

    private void loadFile() {
        try {
            load(configFile);
        } catch (InvalidConfigurationException | IOException e) {
            System.out.println(rawPrefix + e.getStackTrace());
        }
    }

    public void save() {
        try {
            save(configFile);
        } catch (IOException e) {
            System.out.println(rawPrefix + e.getStackTrace());
        }
    }
}