env.java

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package com.restrant.util;

import java.io.InputStream;
import java.util.Properties;

public class Env extends Properties {
	private static Env instance;
	private Env(){
		InputStream is = getClass().getResourceAsStream("/db.properties");
		try {
			load(is);
		} catch (Exception e) {
			e.printStackTrace();
			return;
		}
	}
	
	public static Env getInstance() {
		if (instance!=null) {
			return instance;
		}
		else {
			makeInstance();
			return instance;
		}
	}
	
	private static synchronized void makeInstance() {
		if (instance==null) {
			instance = new Env();
		}
	}

}