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 | import java.rmi.RemoteException; |
| 25 | import java.rmi.registry.Registry; |
| 26 | import java.rmi.registry.LocateRegistry; |
| 27 | import java.util.logging.Logger; |
| 28 | import java.util.logging.Level; |
| 29 | |
| 30 | /** |
| 31 | * The ApplicationServer class provides the other server side of the "juicer" |
| 32 | * stress test of RMI. |
| 33 | */ |
| 34 | public class ApplicationServer implements Runnable { |
| 35 | |
| 36 | /** number of remote Apple objects to export */ |
| 37 | private static final Logger logger = Logger.getLogger("reliability.orange"); |
| 38 | private static final int LOOKUP_ATTEMPTS = 5; |
| 39 | private static final int DEFAULT_NUMAPPLES = 10; |
| 40 | private static final String DEFAULT_REGISTRYHOST = "localhost"; |
| 41 | private final int numApples; |
| 42 | private final String registryHost; |
| 43 | private final Apple[] apples; |
| 44 | private AppleUser user; |
| 45 | |
| 46 | ApplicationServer() { |
| 47 | this(DEFAULT_NUMAPPLES, DEFAULT_REGISTRYHOST); |
| 48 | } |
| 49 | |
| 50 | ApplicationServer(int numApples, String registryHost) { |
| 51 | this.numApples = numApples; |
| 52 | this.registryHost = registryHost; |
| 53 | apples = new Apple[numApples]; |
| 54 | } |
| 55 | |
| 56 | /* |
| 57 | * On initialization, export remote objects and register |
| 58 | * them with server. |
| 59 | */ |
| 60 | public void run() { |
| 61 | try { |
| 62 | int i = 0; |
| 63 | |
| 64 | /* |
| 65 | * Locate apple user object in registry. The lookup will |
| 66 | * occur until it is successful or fails LOOKUP_ATTEMPTS times. |
| 67 | * These repeated attempts allow the ApplicationServer |
| 68 | * to be started before the AppleUserImpl. |
| 69 | */ |
| 70 | Exception exc = null; |
| 71 | for (i = 0; i < LOOKUP_ATTEMPTS; i++) { |
| 72 | try { |
| 73 | Registry registry = LocateRegistry.getRegistry( |
| 74 | registryHost, 2006); |
| 75 | user = (AppleUser) registry.lookup("AppleUser"); |
| 76 | user.startTest(); |
| 77 | break; //successfully obtained AppleUser |
| 78 | } catch (Exception e) { |
| 79 | exc = e; |
| 80 | Thread.sleep(10000); //sleep 10 seconds and try again |
| 81 | } |
| 82 | } |
| 83 | if (user == null) { |
| 84 | logger.log(Level.SEVERE, "Failed to lookup AppleUser:", exc); |
| 85 | return; |
| 86 | } |
| 87 | |
| 88 | /* |
| 89 | * Create and export apple implementations. |
| 90 | */ |
| 91 | try { |
| 92 | for (i = 0; i < numApples; i++) { |
| 93 | apples[i] = new AppleImpl("AppleImpl #" + (i + 1)); |
| 94 | } |
| 95 | } catch (RemoteException e) { |
| 96 | logger.log(Level.SEVERE, |
| 97 | "Failed to create AppleImpl #" + (i + 1) + ":", e); |
| 98 | user.reportException(e); |
| 99 | return; |
| 100 | } |
| 101 | |
| 102 | /* |
| 103 | * Hand apple objects to apple user. |
| 104 | */ |
| 105 | try { |
| 106 | for (i = 0; i < numApples; i++) { |
| 107 | user.useApple(apples[i]); |
| 108 | } |
| 109 | } catch (RemoteException e) { |
| 110 | logger.log(Level.SEVERE, |
| 111 | "Failed to register callbacks for " + apples[i] + ":", e); |
| 112 | user.reportException(e); |
| 113 | return; |
| 114 | } |
| 115 | } catch (Exception e) { |
| 116 | logger.log(Level.SEVERE, "Unexpected exception:", e); |
| 117 | } |
| 118 | } |
| 119 | |
| 120 | private static void usage() { |
| 121 | System.err.println("Usage: ApplicationServer [-numApples <numApples>]"); |
| 122 | System.err.println(" [-registryHost <host>]"); |
| 123 | System.err.println(" numApples The number of apples (threads) to use."); |
| 124 | System.err.println(" The default is 10 apples."); |
| 125 | System.err.println(" host The host running rmiregistry " + |
| 126 | "which contains AppleUser."); |
| 127 | System.err.println(" The default is \"localhost\"."); |
| 128 | System.err.println(); |
| 129 | } |
| 130 | |
| 131 | public static void main(String[] args) { |
| 132 | int num = DEFAULT_NUMAPPLES; |
| 133 | String host = DEFAULT_REGISTRYHOST; |
| 134 | |
| 135 | // parse command line args |
| 136 | try { |
| 137 | for (int i = 0; i < args.length ; i++ ) { |
| 138 | String arg = args[i]; |
| 139 | if (arg.equals("-numApples")) { |
| 140 | i++; |
| 141 | num = Integer.parseInt(args[i]); |
| 142 | } else if (arg.equals("-registryHost")) { |
| 143 | i++; |
| 144 | host = args[i]; |
| 145 | } else { |
| 146 | usage(); |
| 147 | } |
| 148 | } |
| 149 | } catch (Throwable t) { |
| 150 | usage(); |
| 151 | throw new RuntimeException("TEST FAILED: Bad argument"); |
| 152 | } |
| 153 | |
| 154 | // start the client server |
| 155 | Thread server = new Thread(new ApplicationServer(num,host)); |
| 156 | server.start(); |
| 157 | // main should exit once all exported remote objects are gc'd |
| 158 | } |
| 159 | } |