crawlercommons.filters.URLFilter Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of crawler-commons Show documentation

crawler-commons is a set of reusable Java components that implement functionality common to any web crawler.

The newest version!

/**
 * Copyright 2016 Crawler-Commons
 * 
 * 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 crawlercommons.filters;

public abstract class URLFilter {

    /**
     * Returns a modified version of the input URL or null if the URL should be
     * removed
     * 
     * @param urlString
     *            a URL string to check against filter(s)
     * @return a filtered URL
     **/
    public abstract String filter(String urlString);

}