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 package impl; 25 26 import java.net.InetAddress; 27 import java.net.UnknownHostException; 28 import java.net.spi.InetAddressResolver; 29 import java.net.spi.InetAddressResolverProvider; 30 import java.util.stream.Stream; 31 32 public class EmptyResultsProviderImpl extends InetAddressResolverProvider { 33 @Override 34 public InetAddressResolver get(Configuration configuration) { 35 System.out.println("The following provider will be used by current test:" + 36 this.getClass().getCanonicalName()); 37 38 return new InetAddressResolver() { 39 @Override 40 public Stream<InetAddress> lookupByName(String host, LookupPolicy lookupPolicy) 41 throws UnknownHostException { 42 return Stream.empty(); 43 } 44 45 @Override 46 public String lookupByAddress(byte[] addr) throws UnknownHostException { 47 return configuration.builtinResolver().lookupByAddress(addr); 48 } 49 }; 50 } 51 52 @Override 53 public String name() { 54 return "EmptyForwardLookupResultsProvider"; 55 } 56 }