/*
 * Progressia
 * Copyright (C)  2020-2021  Wind Corporation and contributors
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

package ru.windcorp.progressia.common.state;

import java.io.DataInput;
import java.io.DataOutput;
import java.io.IOException;

public abstract class StatefulObjectLayout {

	private final String objectId;

	public StatefulObjectLayout(String objectId) {
		this.objectId = objectId;
	}

	public String getObjectId() {
		return objectId;
	}

	public abstract StateStorage createStorage();

	protected void checkObject(StatefulObject object) {
		if (!object.getId().equals(getObjectId())) {
			throw new IllegalArgumentException(
				object.getId() + " is not " + getObjectId()
			);
		}
	}

	public abstract void read(
		StatefulObject object,
		DataInput input,
		IOContext context
	)
		throws IOException;

	public abstract void write(
		StatefulObject object,
		DataOutput output,
		IOContext context
	)
		throws IOException;

	public abstract void copy(StatefulObject from, StatefulObject to);

	public abstract int computeHashCode(StatefulObject object);

	public abstract boolean areEqual(StatefulObject a, StatefulObject b);

	public abstract StateFieldBuilder getBuilder(String id);

}
