org.apache.wicket.util.string.UrlUtils Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of org.ops4j.pax.wicket.service Show documentation

Pax Wicket Service is an OSGi extension of the Wicket framework, allowing for dynamic loading and unloading of Wicket components and pageSources.

There is a newer version: 5.0.0

Show newest version

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.wicket.util.string;

import org.apache.wicket.Request;

/**
 * Various url utilities
 * 
 * @author igor.vaynberg
 */
public class UrlUtils
{
	/**
	 * Constructor
	 */
	private UrlUtils()
	{

	}

	/**
	 * Checks if the url is relative or absolute
	 * 
	 * @param url
	 * @return true if url is relative, false otherwise
	 */
	public static boolean isRelative(final String url)
	{
		// the regex means "doesn't start with 'scheme://'"
		if ((url != null) && (url.startsWith("/") == false) && (!url.matches("^\\w+\\:\\/\\/.*")) &&
			!(url.startsWith("#")))
		{
			return true;
		}
		else
		{
			return false;
		}
	}

	/**
	 * Rewrites a relative url to be context relative, leaves absolute urls same.
	 * 
	 * @param url
	 * @param request
	 * @return rewritten url
	 */
	public static String rewriteToContextRelative(String url, Request request)
	{
		if (isRelative(url))
		{
			final String prefix = request.getRelativePathPrefixToContextRoot();
			return prefix + url;
		}
		else
		{
			return url;
		}
	}
}