/*
* JBoss, Home of Professional Open Source
* Copyright 2012, Red Hat Middleware LLC, and individual contributors
* by the @authors tag. See the copyright.txt in the distribution for a
* full listing of individual contributors.
*
* Licensed 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.jboss.arquillian.warp.impl.utils;
import java.net.MalformedURLException;
import java.net.URL;
/**
* Provides URL manipulations and functionality.
*
* @author Lukas Fryc
*/
public final class URLUtils {
private URLUtils() {
}
/**
* Use URL context and one or more relocations to build end URL.
*
* @param context first URL used like a context root for all relocation changes
* @param relocations array of relocation URLs
* @return end url after all changes made on context with relocations
* @throws AssertionError when context or some of relocations are malformed URLs
*/
public static URL buildUrl(String context, String... relocations) {
try {
return buildUrl(new URL(context), relocations);
} catch (MalformedURLException e) {
throw new AssertionError("URL('" + context + "') isn't valid URL");
}
}
/**
* Use URL context and one or more relocations to build end URL.
*
* @param context first URL used like a context root for all relocation changes
* @param relocations array of relocation URLs
* @return end url after all changes made on context with relocations
* @throws AssertionError when context or some of relocations are malformed URLs
*/
public static URL buildUrl(URL context, String... relocations) {
URL url = context;
for (String move : relocations) {
try {
url = new URL(url, move);
} catch (MalformedURLException e) {
throw new AssertionError("URL('" + url + "', '" + move + "') isn't valid URL");
}
}
return url;
}
public static URL getUrlBase(URL url) {
try {
return new URL(url.getProtocol(), url.getHost(), url.getPort(), "");
} catch (MalformedURLException e) {
throw new AssertionError("URL('" + url + "') was unable to transform to base URL");
}
}
public static URL changeBase(URL url, URL base) {
base = URLUtils.getUrlBase(base);
return URLUtils.buildUrl(base, url.getFile());
}
}