1 /* 2 * Copyright (c) 2014, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package java.net; 27 28 import java.io.IOException; 29 30 class SocketSecrets { 31 32 /* accessed by reflection from jdk.net.Sockets */ 33 34 /* obj must be a Socket or ServerSocket */ 35 36 private static <T> void setOption(Object obj, SocketOption<T> name, T value) throws IOException { 37 SocketImpl impl; 38 39 if (obj instanceof Socket) { 40 impl = ((Socket)obj).getImpl(); 41 } else if (obj instanceof ServerSocket) { 42 impl = ((ServerSocket)obj).getImpl(); 43 } else { 44 throw new IllegalArgumentException(); 45 } 46 impl.setOption(name, value); 47 } 48 49 private static <T> T getOption(Object obj, SocketOption<T> name) throws IOException { 50 SocketImpl impl; 51 52 if (obj instanceof Socket) { 53 impl = ((Socket)obj).getImpl(); 54 } else if (obj instanceof ServerSocket) { 55 impl = ((ServerSocket)obj).getImpl(); 56 } else { 57 throw new IllegalArgumentException(); 58 } 59 return impl.getOption(name); 60 } 61 62 private static <T> void setOption(DatagramSocket s, SocketOption<T> name, T value) throws IOException { 63 s.getImpl().setOption(name, value); 64 } 65 66 private static <T> T getOption(DatagramSocket s, SocketOption<T> name) throws IOException { 67 return s.getImpl().getOption(name); 68 } 69 70 } 71
