package com.ingenieux.nullweblog.util;



import java.util.regex.Matcher;

import java.util.regex.Pattern;



public class URIUtil {

	private static final URIUtil INSTANCE = new URIUtil();



	public static final URIUtil getInstance() {

		return INSTANCE;

	}



	private static final Pattern PATTERN_ROOT = Pattern

			.compile("^(http://[^/]+).*$");



	public StringBuilder getRequestBase(String requestPath) {

		Matcher matcher = PATTERN_ROOT.matcher(requestPath);



		if (!matcher.find())

			return new StringBuilder("");



		return new StringBuilder(matcher.group(1));

	}

	

	public StringBuilder getRequestBase(StringBuffer buffer) {

		return getRequestBase(buffer.toString());

	}

}