package com.yuji.tdb.twitter;

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

public class TwitterUtil {
	private static TwitterUtil instance = null;
	private static Object obj = new Object();

	public TwitterUtil getInstance() {
		if (instance == null) {
			synchronized (obj) {
				if (instance == null) {
					instance = new TwitterUtil();
				}
			}
		}
		return instance;
	}

	private TwitterUtil() {

	}

	private List<String> keywords = null;

	public boolean filter(String text) {
		if (keywords == null) {
			keywords = new ArrayList<String>();
			keywords.add("x");
			keywords.add("x");
			keywords.add("Uւ");
			keywords.add("");
		}

		for (String keyword : keywords) {
			if (text.indexOf(keyword) >= 0) {
				return true;
			}
		}
		return false;
	}
}
