BytesToLongModel.java

package fr.openwide.core.wicket.more.markup.html.model;

import org.apache.wicket.model.IModel;
import org.apache.wicket.model.LoadableDetachableModel;
import org.apache.wicket.util.lang.Bytes;

public class BytesToLongModel extends LoadableDetachableModel<Long> {

	private static final long serialVersionUID = 3511276823849427019L;

	private final IModel<Bytes> bytesModel;

	protected BytesToLongModel(IModel<Bytes> bytesModel) {
		super();
		this.bytesModel = bytesModel;
	}

	@Override
	protected Long load() {
		if (bytesModel.getObject() == null) {
			return null;
		} else {
			return Long.valueOf(bytesModel.getObject().bytes());
		}
	}

	@Override
	public void detach() {
		bytesModel.detach();
		super.detach();
	}

	@Override
	public void setObject(Long object) {
		if (object == null) {
			bytesModel.setObject(null);
		} else {
			bytesModel.setObject(Bytes.bytes(object));
		}
		super.setObject(object);
	}

	public static final BytesToLongModel of(IModel<Bytes> bytesModel) {
		return new BytesToLongModel(bytesModel);
	}

}