VKTokenProviderImpl.java

package ru.iris.common.source.vk;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

/**
 * Author: akorobitsyn
 * Date: 03.07.13
 * Time: 14:53
 */
public class VKTokenProviderImpl implements VKTokenProvider
{

	private List<String> tokens = new ArrayList<String>();
	private int index = 0;

	public static VKTokenProviderImpl createInstance(String... tokens)
	{
		return new VKTokenProviderImpl(Arrays.asList(tokens));
	}

	public static VKTokenProviderImpl createInstance(List<String> tokens)
	{
		return new VKTokenProviderImpl(tokens);
	}

	private VKTokenProviderImpl(List<String> tokens)
	{
		this.tokens.addAll(tokens);
	}

	@Override
	public String getToken()
	{
		return tokens.get(index);
	}

	@Override
	public boolean switchToken()
	{
		index++;
		return index < tokens.size();
	}
}