SideOnlyLambda.java

package com.example.sideonlylambda;

import net.minecraft.item.ItemStack;
import net.minecraftforge.fml.common.Mod;
import net.minecraftforge.fml.common.Mod.EventHandler;
import net.minecraftforge.fml.common.event.FMLInitializationEvent;
import net.minecraftforge.fml.common.event.FMLPreInitializationEvent;
import net.minecraftforge.fml.relauncher.Side;
import net.minecraftforge.fml.relauncher.SideOnly;
import net.minecraftforge.oredict.OreDictionary;
import org.apache.logging.log4j.Logger;

@Mod(modid = "side" + "only" + "lambda", name = "SideOnly Lambda", version = "0.1.0")
public class SideOnlyLambda
{
    private static Logger logger;

    @EventHandler
    public void preInit(FMLPreInitializationEvent event)
    {
        logger = event.getModLog();
    }

    @EventHandler
    @SideOnly(Side.SERVER)
    public void initServer(FMLInitializationEvent event)
    {
        logger.info("Init from (physical) server.");
        OreDictionary.getOres("dirt").forEach(this::printItem);
    }

    @EventHandler
    @SideOnly(Side.CLIENT)
    public void initClient(FMLInitializationEvent event)
    {
        logger.info("Init from (physical) client.");
        OreDictionary.getOres("dirt").forEach(this::printItem);
    }

    private void printItem(ItemStack item)
    {
        String displayName = item.getDisplayName();
        logger.info("DIRT ITEM >> {}", displayName);
    }
}