Source code

001package org.apache.archiva.policies.urlcache;
002
003/*
004 * Licensed to the Apache Software Foundation (ASF) under one
005 * or more contributor license agreements.  See the NOTICE file
006 * distributed with this work for additional information
007 * regarding copyright ownership.  The ASF licenses this file
008 * to you under the Apache License, Version 2.0 (the
009 * "License"); you may not use this file except in compliance
010 * with the License.  You may obtain a copy of the License at
011 *
012 *  http://www.apache.org/licenses/LICENSE-2.0
013 *
014 * Unless required by applicable law or agreed to in writing,
015 * software distributed under the License is distributed on an
016 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017 * KIND, either express or implied.  See the License for the
018 * specific language governing permissions and limitations
019 * under the License.
020 */
021
022
023/**
024 * Cache for requested URLs that cannot be fetched. 
025 *
026 *
027 */
028public interface UrlFailureCache
029{
030    /**
031     * Store a URL in the cache as failed.
032     * 
033     * @param url the url to store. 
034     */
035    void cacheFailure( String url );
036    
037    /**
038     * Test if a specified URL has failed before.
039     * 
040     * NOTE: If the provided URL has failed, then making this call 
041     * should refresh the expiration time on that URL entry.
042     * 
043     * @param url the URL to test.
044     * @return true if it has failed before, false if not.
045     */
046    boolean hasFailedBefore( String url );
047}