AbstractCollectionDifferStrategy.java

package fr.openwide.core.jpa.more.business.difference.differ.strategy;

import java.util.Arrays;
import java.util.Collection;

public abstract class AbstractCollectionDifferStrategy<T, K> extends AbstractContainerDifferStrategy<Collection<T>, K> {
	
	public AbstractCollectionDifferStrategy(ItemContentComparisonStrategy itemContentComparisonStrategy) {
		super(itemContentComparisonStrategy);
	}

	@SuppressWarnings("unchecked")
	@Override
	public Collection<T> toContainer(Object object) {
		if (object == null) {
			return null; // NOSONAR
		} else if (object instanceof Collection) {
			return (Collection<T>)object;
		} else if (object instanceof Object[]) {
			return Arrays.asList((T[])object);
		} else {
			throw new IllegalArgumentException("This strategy only supports collections and arrays.");
		}
	}
}