CacheTest.java

import java.io.IOException;
import java.net.*;
import java.util.*;

import net.spy.memcached.*;
import org.jsoup.Jsoup;
import org.jsoup.nodes.Document;

import com.google.common.base.Strings;

public class CacheTest {
	static MemcachedClientIF memcachedClient;
	static{
		List<InetSocketAddress> serverList = new ArrayList<InetSocketAddress>();
		InetSocketAddress server1 = new InetSocketAddress("mtest1", 11211);
		serverList.add(server1);
		try {
			memcachedClient = new MemcachedClient(serverList);
		} catch (IOException e) {}
	}
	
	public static void main(String[] args) {
		useCache();
		useDb();
	}
	
	private static void useCache(){
		long startTime = System.currentTimeMillis();
		
		for(String name:getName()){
			getCache(name);
		}
		
		System.out.println("cache -> " + (System.currentTimeMillis() - startTime));
	}
	
	private static void useDb(){
		long startTime = System.currentTimeMillis();
		
		for(String name:getName()){
			getEngWord(name);
		}
		
		System.out.println("db -> " + (System.currentTimeMillis() - startTime));
	}

	private static void setCache(String key, String value) {
		memcachedClient.set(key, 600, value);
	}

	public static String getCache(String key) {
		String result = (String) memcachedClient.get(key);
		if(Strings.isNullOrEmpty(result)){
			String newValue = getEngWord(key);
			setCache(key, newValue);
			return newValue;
		}
		return result;
	}
	
	static String getEngWord(String korWord){
		try {
			String req=URLEncoder.encode(korWord, "UTF-8");
			String DIC_URL = "http://endic.naver.com/search.nhn?searchOption=entry_idiom&query="+req;
			Document doc = Jsoup.connect(DIC_URL).get();
			return doc.select("span.fnt_k05").first().text();
		} catch (IOException e) {
			return "";
		}
	}
	
	static List<String> getName(){
		List<String> nameList = new LinkedList<String>();
		nameList.add("한국");
		nameList.add("중국");
		nameList.add("일본");
		nameList.add("미국");
		nameList.add("영국");
		nameList.add("프랑스");
		nameList.add("인도");
		nameList.add("터키");
		nameList.add("스위스");
		return nameList;
	}
	
}