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/**
 * Copyright (c) 2013 Christian Pelster.
 * 
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     Christian Pelster - initial API and implementation
 */
package io.pelle.mango.client.base.util;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class CollectionUtils
{
	public static  List copyToArrayList(List fromList)
	{
		ArrayList result = new ArrayList();

		for (T listItem : fromList)
		{
			result.add(listItem);
		}

		return result;
	}

	public static HashMap copyMap(Map map)
	{
		HashMap result = new HashMap();

		for (Map.Entry entry : map.entrySet())
		{
			String value = null;

			if (entry.getValue() != null)
			{
				value = entry.getValue().toString();
			}

			result.put(entry.getKey(), value);
		}

		return result;
	}

	public static HashMap getMap(String key1, Object value1)
	{
		return getMap(key1, value1, null, null, null, null);
	}

	public static HashMap getMap(String key1, Object value1, String key2, Object value2)
	{
		return getMap(key1, value1, key2, value2, null, null);
	}

	// no varargs in gwt sadly
	public static HashMap getMap(String key1, Object value1, String key2, Object value2, String key3, Object value3)
	{
		HashMap result = new HashMap();

		if (key1 != null)
		{
			result.put(key1, value1);
		}

		if (key2 != null)
		{
			result.put(key2, value2);
		}

		if (key3 != null)
		{
			result.put(key3, value3);
		}

		return result;
	}
}