package org.warp.commonutils.type;

import it.unimi.dsi.fastutil.objects.ObjectSet;
import java.util.Optional;

public final class SynchronizedBiAssociation<T, U> implements BiAssociation<T, U> {

	private final BiAssociation<T,U> association;
	private final Object lock;

	SynchronizedBiAssociation(BiAssociation<T, U> association) {
		this.association = association;
		this.lock = new Object();
	}

	SynchronizedBiAssociation(BiAssociation<T, U> association, Object lock) {
		this.association = association;
		this.lock = lock;
	}

	@Override
	public Optional<U> link(T src, U dest) {
		synchronized (lock) {
			return association.link(src, dest);
		}
	}

	@Override
	public boolean unlink(T src, U dest) {
		synchronized (lock) {
			return association.unlink(src, dest);
		}
	}

	@Override
	public Optional<U> unlink(T src) {
		synchronized (lock) {
			return association.unlink(src);
		}
	}

	@Override
	public Optional<T> unlinkFromSource(U dest) {
		synchronized (lock) {
			return association.unlinkFromSource(dest);
		}
	}

	@Override
	public boolean hasLink(T src) {
		synchronized (lock) {
			return association.hasLink(src);
		}
	}

	@Override
	public boolean hasLinkSource(U dest) {
		synchronized (lock) {
			return association.hasLinkSource(dest);
		}
	}

	@Override
	public boolean hasLink(T src, U dest) {
		synchronized (lock) {
			return association.hasLink(src, dest);
		}
	}

	@Override
	public Optional<U> getLink(T src) {
		synchronized (lock) {
			return association.getLink(src);
		}
	}

	@Override
	public Optional<T> getLinkSource(U dest) {
		synchronized (lock) {
			return association.getLinkSource(dest);
		}
	}

	@Override
	public void clear() {
		synchronized (lock) {
			association.clear();
		}
	}

	@Override
	public int size() {
		synchronized (lock) {
			return association.size();
		}
	}

	@Override
	public ObjectSet<T> getSources() {
		synchronized (lock) {
			return association.getSources();
		}
	}

	@Override
	public ObjectSet<U> getDestinations() {
		synchronized (lock) {
			return association.getDestinations();
		}
	}
}