package org.gcube.informationsystem.base.impl.relations;

import java.io.StringWriter;

import org.gcube.informationsystem.base.impl.ERImpl;
import org.gcube.informationsystem.base.reference.entities.E;
import org.gcube.informationsystem.base.reference.relations.R;
import org.gcube.informationsystem.utils.ISMapper;

public abstract class RImpl<Out extends E, In extends E> extends ERImpl implements R<Out, In> {
	
	/**
	 * Generated Serial Version UID 
	 */
	private static final long serialVersionUID = 28704968813390512L;
	
	protected Out source;
	protected In target;

	protected RImpl() {
		super();		
	}

	protected RImpl(Out source, In target) {
		this();
		this.source = source;
		this.target = target;
	}

	@Override
	public Out getSource() {
		return source;
	}
	
	@Override
	public void setSource(Out source) {
		this.source = source;
	}

	@Override
	public In getTarget() {
		return target;
	}

	@Override
	public void setTarget(In target) {
		this.target = target;
	}

	@Override
	public String toString() {
		StringWriter stringWriter = new StringWriter();
		try {
			ISMapper.marshal(this, stringWriter);
			return stringWriter.toString();
		} catch (Exception e) {
			try {
				ISMapper.marshal(this.header, stringWriter);
				return stringWriter.toString();
			} catch (Exception e1) {
				return super.toString();
			}
		}
	}
}