HeatBehaviourManager.java

package pneumaticCraft.common.heat.behaviour;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import net.minecraft.world.World;
import pneumaticCraft.api.IHeatExchangerLogic;
import pneumaticCraft.api.tileentity.HeatBehaviour;
import pneumaticCraft.lib.Log;

public class HeatBehaviourManager{
    private static final HeatBehaviourManager INSTANCE = new HeatBehaviourManager();
    private final Map<String, HeatBehaviour> behaviours = new HashMap<String, HeatBehaviour>();

    public static HeatBehaviourManager getInstance(){
        return INSTANCE;
    }

    public void init(){
        registerBehaviour(HeatBehaviourFurnace.class);
        registerBehaviour(HeatBehaviourLava.class);
        registerBehaviour(HeatBehaviourWaterVaporate.class);
        registerBehaviour(HeatBehaviourWaterSolidify.class);
        registerBehaviour(HeatBehaviourHeatFrame.class);
    }

    public void registerBehaviour(Class<? extends HeatBehaviour> behaviour){
        if(behaviour == null) throw new IllegalArgumentException("Can't register a null behaviour!");
        try {
            HeatBehaviour ins = behaviour.newInstance();
            HeatBehaviour overridenBehaviour = behaviours.put(ins.getId(), ins);
            if(overridenBehaviour != null) Log.warning("Registered a heat behaviour that has the same id as an already registered one. The old one will be discarded. Old behaviour class: " + overridenBehaviour.getClass() + ". New class: " + behaviour.getClass());
        } catch(InstantiationException e) {
            throw new IllegalArgumentException("The behaviour class doesn't have a nullary constructor, or is abstract! Class: " + behaviour);
        } catch(IllegalAccessException e) {
            throw new IllegalArgumentException("Doesn't have access to the class (is it private?) Class: " + behaviour);
        }
    }

    public HeatBehaviour getBehaviourForId(String id){
        HeatBehaviour behaviour = behaviours.get(id);
        if(behaviour != null) {
            try {
                return behaviour.getClass().newInstance();
            } catch(Exception e) {
                e.printStackTrace();
                return null;
            }
        } else {
            Log.warning("No heat behaviour found for id: " + id);
            return null;
        }
    }

    public void addHeatBehaviours(World world, int x, int y, int z, IHeatExchangerLogic logic, List<HeatBehaviour> list){
        for(HeatBehaviour behaviour : behaviours.values()) {
            behaviour.initialize(logic, world, x, y, z);
            if(behaviour.isApplicable()) {
                try {
                    behaviour = behaviour.getClass().newInstance();
                    behaviour.initialize(logic, world, x, y, z);
                    list.add(behaviour);
                } catch(Exception e) {
                    e.printStackTrace();
                }
            }
        }
    }
}