1 package org.apache.maven.archiva.policies;
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
23 import java.util.ArrayList;
24 import java.util.List;
25 import java.util.Properties;
27 import org.apache.commons.lang.StringUtils;
28 import org.apache.maven.archiva.policies.urlcache.UrlFailureCache;
29 import org.slf4j.Logger;
30 import org.slf4j.LoggerFactory;
33 * {@link PreDownloadPolicy} to check if the requested url has failed before.
35 * @author <a href="mailto:joakime@apache.org">Joakim Erdfelt</a>
37 * @plexus.component role="org.apache.maven.archiva.policies.PreDownloadPolicy"
38 * role-hint="cache-failures"
40 public class CachedFailuresPolicy
41 implements PreDownloadPolicy
43 private Logger log = LoggerFactory.getLogger( CachedFailuresPolicy.class );
46 * The NO policy setting means that the the existence of old failures is <strong>not</strong> checked.
47 * All resource requests are allowed thru to the remote repo.
49 public static final String NO = "no";
52 * The YES policy setting means that the existence of old failures is checked, and will
53 * prevent the request from being performed against the remote repo.
55 public static final String YES = "yes";
60 private UrlFailureCache urlFailureCache;
62 private List<String> options = new ArrayList<String>();
64 public CachedFailuresPolicy()
70 public void applyPolicy( String policySetting, Properties request, File localFile )
71 throws PolicyViolationException, PolicyConfigurationException
73 if ( !options.contains( policySetting ) )
76 throw new PolicyConfigurationException( "Unknown cache-failues policy setting [" + policySetting +
77 "], valid settings are [" + StringUtils.join( options.iterator(), "," ) + "]" );
80 if ( NO.equals( policySetting ) )
83 log.debug( "OK to fetch, check-failures policy set to NO." );
87 String url = request.getProperty( "url" );
89 if ( StringUtils.isNotBlank( url ) )
91 if ( urlFailureCache.hasFailedBefore( url ) )
93 throw new PolicyViolationException(
94 "NO to fetch, check-failures detected previous failure on url: " + url );
98 log.debug( "OK to fetch, check-failures detected no issues." );
101 public String getDefaultOption()
106 public String getId()
108 return "cache-failures";
111 public List<String> getOptions()