001package org.eclipse.aether.internal.impl; 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 022import java.util.regex.Pattern; 023 024import javax.inject.Named; 025import javax.inject.Singleton; 026 027import org.eclipse.aether.RepositorySystemSession; 028import org.eclipse.aether.impl.OfflineController; 029import org.eclipse.aether.repository.RemoteRepository; 030import org.eclipse.aether.transfer.RepositoryOfflineException; 031import org.eclipse.aether.util.ConfigUtils; 032 033/** 034 * 035 */ 036@Singleton 037@Named 038public class DefaultOfflineController 039 implements OfflineController 040{ 041 042 static final String CONFIG_PROP_OFFLINE_PROTOCOLS = "aether.offline.protocols"; 043 044 static final String CONFIG_PROP_OFFLINE_HOSTS = "aether.offline.hosts"; 045 046 private static final Pattern SEP = Pattern.compile( "\\s*,\\s*" ); 047 048 public DefaultOfflineController() 049 { 050 // enables default constructor 051 } 052 053 public void checkOffline( RepositorySystemSession session, RemoteRepository repository ) 054 throws RepositoryOfflineException 055 { 056 if ( isOfflineProtocol( session, repository ) || isOfflineHost( session, repository ) ) 057 { 058 return; 059 } 060 061 throw new RepositoryOfflineException( repository ); 062 } 063 064 private boolean isOfflineProtocol( RepositorySystemSession session, RemoteRepository repository ) 065 { 066 String[] protocols = getConfig( session, CONFIG_PROP_OFFLINE_PROTOCOLS ); 067 if ( protocols != null ) 068 { 069 String protocol = repository.getProtocol(); 070 if ( protocol.length() > 0 ) 071 { 072 for ( String p : protocols ) 073 { 074 if ( p.equalsIgnoreCase( protocol ) ) 075 { 076 return true; 077 } 078 } 079 } 080 } 081 return false; 082 } 083 084 private boolean isOfflineHost( RepositorySystemSession session, RemoteRepository repository ) 085 { 086 String[] hosts = getConfig( session, CONFIG_PROP_OFFLINE_HOSTS ); 087 if ( hosts != null ) 088 { 089 String host = repository.getHost(); 090 if ( host.length() > 0 ) 091 { 092 for ( String h : hosts ) 093 { 094 if ( h.equalsIgnoreCase( host ) ) 095 { 096 return true; 097 } 098 } 099 } 100 } 101 return false; 102 } 103 104 private String[] getConfig( RepositorySystemSession session, String key ) 105 { 106 String value = ConfigUtils.getString( session, "", key ).trim(); 107 if ( value.length() <= 0 ) 108 { 109 return null; 110 } 111 return SEP.split( value ); 112 } 113 114}