prestonbane/src/engine/db/handlers/dbHandlerBase.java

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//      Magicbane Emulator Project © 2013 - 2022
//                www.magicbane.com


package engine.db.handlers;

import engine.Enum.GameObjectType;
import engine.gameManager.DbManager;
import engine.objects.AbstractGameObject;
import engine.objects.AbstractWorldObject;
import org.pmw.tinylog.Logger;

import java.sql.ResultSet;
import java.util.ArrayList;

public abstract class dbHandlerBase {

    protected Class<? extends AbstractGameObject> localClass = null;
    protected GameObjectType localObjectType;

    protected <T extends AbstractGameObject> AbstractGameObject getObjectFromRs(ResultSet rs) {

        AbstractGameObject abstractGameObject = null;

        try {
            if (rs.next()) {
                abstractGameObject = localClass.getConstructor(ResultSet.class).newInstance(rs);

                DbManager.addToCache(abstractGameObject);
            }
        } catch (Exception e) {
            Logger.error(e);
        }

        return abstractGameObject;
    }

    protected <T extends AbstractGameObject> ArrayList<T> getObjectsFromRs(ResultSet rs, int listSize) {

        ArrayList<T> objectList = new ArrayList<>(listSize);

        try {
            while (rs.next()) {

                int id = rs.getInt(1);

                if (DbManager.inCache(localObjectType, id)) {
                    objectList.add((T) DbManager.getFromCache(localObjectType, id));
                } else {
                    AbstractGameObject toAdd = localClass.getConstructor(ResultSet.class).newInstance(rs);
                    DbManager.addToCache(toAdd);
                    objectList.add((T) toAdd);

                    if (toAdd != null && toAdd instanceof AbstractWorldObject)
                        ((AbstractWorldObject) toAdd).runAfterLoad();
                }
            }
        } catch (Exception e) {
            Logger.error(e);
        }
        return objectList;
    }
}