com.watchrabbit.crawler.manager.util.InternetAddress Maven / Gradle / Ivy
/*
* Copyright 2015 Mariusz.
*
* 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 com.watchrabbit.crawler.manager.util;
import com.watchrabbit.commons.exception.SystemException;
import java.net.URI;
import java.net.URISyntaxException;
/**
*
* @author Mariusz
*/
public class InternetAddress {
public static String getDomainName(String url) {
try {
URI uri = new URI(url);
String domain = uri.getHost();
return domain.startsWith("www.") ? domain.substring(4) : domain;
} catch (URISyntaxException ex) {
throw new SystemException("Should be parseable :" + url, ex);
}
}
}