UrlUtils.java

package org.verisign.joid.util;

import javax.servlet.http.HttpServletRequest;

/**
 * User: treeder
 * Date: Jul 19, 2007
 * Time: 4:05:35 PM
 */
public class UrlUtils {

    public static String getFullUrl(HttpServletRequest request){
        StringBuffer b = getServletUrl(request);
        String queryString = request.getQueryString();
        if(queryString != null) {
            b.append("?").append(queryString);
        }
        return b.toString();
    }

    public static StringBuffer getServletUrl(HttpServletRequest request)
    {
        StringBuffer b = new StringBuffer(getBaseUrl(request));
        String servletPath = request.getServletPath();
        if(servletPath != null){
            b.append(servletPath);
        }
        return b;
    }

    /**
	 *
	 * @param request
	 * @return the url of the local host including the context, not including a trailing "/"
     * // todo: make these return StringBuffer instead
	 */
	public static String getBaseUrl(HttpServletRequest request) {
        StringBuffer b = new StringBuffer();
        b.append(getHostUrl(request));
        String context = request.getContextPath();
        if(context != null) {
            b.append(context);
        }
        return b.toString();
	}

    /**
     *
     * @param request
     * @return the host url without the context
     * // todo: make these return StringBuffer instead
     */
    public static String getHostUrl(HttpServletRequest request)
    {
        String scheme = request.getScheme();
        String serverName = request.getServerName();
        String port = request.getServerPort() == 80 || request.getServerPort() == 443 ? "" : ":" + request.getServerPort();
        String start = scheme + "://" + serverName + port;
        return start;
    }
}