1 /* 2 * Copyright (c) 2021, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 import java.net.InetAddress; 25 import java.net.UnknownHostException; 26 import java.net.spi.InetAddressResolverProvider; 27 import java.net.spi.InetAddressResolver; 28 import java.net.spi.InetAddressResolver.LookupPolicy; 29 import java.util.ArrayList; 30 import java.util.Collections; 31 import java.util.List; 32 import java.util.logging.Logger; 33 import java.util.stream.Stream; 34 35 import testlib.ResolutionRegistry; 36 37 public class ClasspathResolverProviderImpl extends InetAddressResolverProvider { 38 39 public static ResolutionRegistry registry = new ResolutionRegistry(); 40 private static List<LookupPolicy> LOOKUP_HISTORY = Collections.synchronizedList(new ArrayList<>()); 41 private static Logger LOGGER = Logger.getLogger(ClasspathResolverProviderImpl.class.getName()); 42 43 @Override 44 public InetAddressResolver get(Configuration configuration) { 45 System.out.println("The following provider will be used by current test:" + this.getClass().getCanonicalName()); 46 return new InetAddressResolver() { 47 @Override 48 public Stream<InetAddress> lookupByName(String host, LookupPolicy lookupPolicy) throws UnknownHostException { 49 LOGGER.info("Looking-up addresses for '" + host + "'. Lookup characteristics:" + 50 Integer.toString(lookupPolicy.characteristics(), 2)); 51 LOOKUP_HISTORY.add(lookupPolicy); 52 return registry.lookupHost(host, lookupPolicy); 53 } 54 55 @Override 56 public String lookupByAddress(byte[] addr) throws UnknownHostException { 57 LOGGER.info("Looking host name for the following address:" + ResolutionRegistry.addressBytesToString(addr)); 58 return registry.lookupAddress(addr); 59 } 60 }; 61 } 62 63 @Override 64 public String name() { 65 return "classpathINSP"; 66 } 67 }