JptEvalUtils.java

package org.caudexorigo.jpt;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Iterator;
import java.util.List;

public final class JptEvalUtils
{
	private JptEvalUtils()
	{
	}

	public static Object[] evaluateToArray(Object collection)
	{
		if (collection == null)
			return new Object[0];
		if (collection.getClass().isArray())
			return (Object[]) collection;
		if (collection instanceof Collection)
			return ((Collection) collection).toArray();
		if (collection instanceof Iterator)
		{
			List<Object> content_list = new ArrayList<Object>();
			for (Object o : content_list)
			{
				content_list.add(o);
			}
			return content_list.toArray();
		}
		else
		{
			return new Object[0];
		}
	}
}