Sponge Example Command

package com.projectstrafe.SpongeEssentials.Commands;

import org.spongepowered.api.entity.player.Player;
import org.spongepowered.api.text.Texts;
import org.spongepowered.api.text.format.TextColors;
import org.spongepowered.api.util.command.CommandException;
import org.spongepowered.api.util.command.CommandResult;
import org.spongepowered.api.util.command.CommandSource;
import org.spongepowered.api.util.command.args.CommandContext;
import org.spongepowered.api.util.command.spec.CommandExecutor;


public class ClassName implements CommandExecutor {

    private MAINCLASS plugin; // You can delete these four lines, if you don't want to access the main class
    public ClassName(MAINCLASS plugin) {
        this.plugin = plugin;
    }

    @Override
    public CommandResult execute(CommandSource src, CommandContext args)
            throws CommandException {
        if (src instanceof Player) { // Check if sender is player
            Player p = (Player) src; // Parse sender  to player.

            // DO STUFF WITH PLAYER HERE!

        } else {
            src.sendMessage(Texts.of("Only players can execute this command")); //IF not player!
        }

        return CommandResult.success(); //Return success!
    }

}