J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* |
| 25 | * |
| 26 | * |
| 27 | * Tests that the channel returned by System.inheritedChannel() |
| 28 | * is in blocking mode, bound, and in the case of a SocketChannel |
| 29 | * connected to a peer. |
| 30 | * |
| 31 | * The test works by launching a test service (called StateTestService) so |
| 32 | * that it inherits each type of channel. The test service checks the |
| 33 | * socket state and replies back to this class via an out-of-band |
| 34 | * channel. |
| 35 | */ |
| 36 | import java.io.*; |
| 37 | import java.net.*; |
| 38 | import java.nio.ByteBuffer; |
| 39 | import java.nio.channels.*; |
| 40 | |
| 41 | public class StateTest { |
| 42 | |
| 43 | private static int failures = 0; |
| 44 | |
| 45 | private static String TEST_SERVICE = "StateTestService"; |
| 46 | |
| 47 | /* |
| 48 | * Reads the test result from the "out-of-band" connection to the test service. |
| 49 | * |
| 50 | * The out-of-band connection is just a TCP connection from the service to |
| 51 | * this class. waitForTestResult just waits (with timeout) for the service |
| 52 | * to connect. Once connected it waits (with timeout) for the test result. |
| 53 | * The test result is examined. |
| 54 | */ |
| 55 | private static void waitForTestResult(ServerSocketChannel ssc, boolean expectFail) throws IOException { |
| 56 | Selector sel = ssc.provider().openSelector(); |
| 57 | SelectionKey sk; |
| 58 | SocketChannel sc; |
| 59 | |
| 60 | /* |
| 61 | * Wait for service to connect |
| 62 | */ |
| 63 | ssc.configureBlocking(false); |
| 64 | sk = ssc.register(sel, SelectionKey.OP_ACCEPT); |
| 65 | long to = 15*1000; |
| 66 | sc = null; |
| 67 | for (;;) { |
| 68 | long st = System.currentTimeMillis(); |
| 69 | sel.select(to); |
| 70 | if (sk.isAcceptable() && ((sc = ssc.accept()) != null)) { |
| 71 | // connection established |
| 72 | break; |
| 73 | } |
| 74 | sel.selectedKeys().remove(sk); |
| 75 | to -= System.currentTimeMillis() - st; |
| 76 | if (to <= 0) { |
| 77 | throw new IOException("Timed out waiting for service to report test result"); |
| 78 | } |
| 79 | } |
| 80 | sk.cancel(); |
| 81 | ssc.configureBlocking(false); |
| 82 | |
| 83 | /* |
| 84 | * Wait for service to report test result |
| 85 | */ |
| 86 | sc.configureBlocking(false); |
| 87 | sk = sc.register(sel, SelectionKey.OP_READ); |
| 88 | to = 5000; |
| 89 | ByteBuffer bb = ByteBuffer.allocateDirect(20); |
| 90 | for (;;) { |
| 91 | long st = System.currentTimeMillis(); |
| 92 | sel.select(to); |
| 93 | if (sk.isReadable()) { |
| 94 | int n = sc.read(bb); |
| 95 | if (n > 0) { |
| 96 | break; |
| 97 | } |
| 98 | if (n < 0) { |
| 99 | throw new IOException("Premature EOF - no test result from service"); |
| 100 | } |
| 101 | } |
| 102 | sel.selectedKeys().remove(sk); |
| 103 | to -= System.currentTimeMillis() - st; |
| 104 | if (to <= 0) { |
| 105 | throw new IOException("Timed out waiting for service to report test result"); |
| 106 | } |
| 107 | } |
| 108 | sk.cancel(); |
| 109 | sc.close(); |
| 110 | sel.close(); |
| 111 | |
| 112 | /* |
| 113 | * Examine the test result |
| 114 | */ |
| 115 | bb.flip(); |
| 116 | byte b = bb.get(); |
| 117 | |
| 118 | if (expectFail && b == 'P') { |
| 119 | System.err.println("Test passed - test is expected to fail!!!"); |
| 120 | failures++; |
| 121 | } |
| 122 | if (!expectFail && b != 'P') { |
| 123 | System.err.println("Test failed!"); |
| 124 | failures++; |
| 125 | } |
| 126 | } |
| 127 | |
| 128 | public static void main(String args[]) throws IOException { |
| 129 | boolean expectFail = false; |
| 130 | |
| 131 | /* |
| 132 | * [-expectFail] [options...] |
| 133 | */ |
| 134 | String options[] = args; |
| 135 | if (args.length > 0 && args[0].equals("-expectFail")) { |
| 136 | // shift out first arg to create options |
| 137 | expectFail = true; |
| 138 | options = new String[args.length-1]; |
| 139 | if (args.length > 1) { |
| 140 | System.arraycopy(args, 1, options, 0, args.length-1); |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | /* |
| 145 | * Create the listener which will be used to read the test result |
| 146 | * from the service. |
| 147 | */ |
| 148 | ServerSocketChannel ssc = ServerSocketChannel.open(); |
| 149 | ssc.socket().bind(new InetSocketAddress(0)); |
| 150 | |
| 151 | /* |
| 152 | * The port is passed to the service as an argument. |
| 153 | */ |
| 154 | int port = ssc.socket().getLocalPort(); |
| 155 | String arg[] = new String[1]; |
| 156 | arg[0] = String.valueOf(port); |
| 157 | |
| 158 | /* |
| 159 | * Launch service with a SocketChannel (tcp nowait) |
| 160 | */ |
| 161 | SocketChannel sc = Launcher.launchWithSocketChannel(TEST_SERVICE, options, arg); |
| 162 | waitForTestResult(ssc, expectFail); |
| 163 | sc.close(); |
| 164 | |
| 165 | /* |
| 166 | * Launch service with a ServerSocketChannel (tcp wait) |
| 167 | * launchWithServerSocketChannel establishes a connection to the service |
| 168 | * and the returned SocketChannel is connected to the service. |
| 169 | */ |
| 170 | sc = Launcher.launchWithServerSocketChannel(TEST_SERVICE, options, arg); |
| 171 | waitForTestResult(ssc, expectFail); |
| 172 | sc.close(); |
| 173 | |
| 174 | /* |
| 175 | * Launch service with a DatagramChannel (udp wait) |
| 176 | */ |
| 177 | DatagramChannel dc = Launcher.launchWithDatagramChannel(TEST_SERVICE, options, arg); |
| 178 | waitForTestResult(ssc, expectFail); |
| 179 | dc.close(); |
| 180 | |
| 181 | if (failures > 0) { |
| 182 | throw new RuntimeException("Test failed - see log for details"); |
| 183 | } else { |
| 184 | System.out.println("All tests passed."); |
| 185 | } |
| 186 | } |
| 187 | } |