Showing the changes to java/pkg/sun/tools/jstatd/Jstatd.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 2004, 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 sun.tools.jstatd; | |
| 27 | + | |
| 28 | +import java.rmi.*; | |
| 29 | +import java.rmi.server.*; | |
| 30 | +import java.rmi.registry.Registry; | |
| 31 | +import java.rmi.registry.LocateRegistry; | |
| 32 | +import java.net.MalformedURLException; | |
| 33 | +import sun.jvmstat.monitor.remote.*; | |
| 34 | + | |
| 35 | +/** | |
| 36 | + * Application providing remote access to the jvmstat instrumentation | |
| 37 | + * exported by local Java Virtual Machine processes. Remote access is | |
| 38 | + * provided through an RMI interface. | |
| 39 | + * | |
| 40 | + * @author Brian Doherty | |
| 41 | + * @since 1.5 | |
| 42 | + */ | |
| 43 | +public class Jstatd { | |
| 44 | + | |
| 45 | + private static Registry registry; | |
| 46 | + private static int port = -1; | |
| 47 | + private static boolean startRegistry = true; | |
| 48 | + | |
| 49 | + private static void printUsage() { | |
| 50 | + System.err.println("usage: jstatd [-nr] [-p port] [-n rminame]"); | |
| 51 | + } | |
| 52 | + | |
| 53 | + static void bind(String name, RemoteHostImpl remoteHost) | |
| 54 | + throws RemoteException, MalformedURLException, Exception { | |
| 55 | + | |
| 56 | + try { | |
| 57 | + Naming.rebind(name, remoteHost); | |
| 58 | + } catch (java.rmi.ConnectException e) { | |
| 59 | + /* | |
| 60 | + * either the registry is not running or we cannot contact it. | |
| 61 | + * start an internal registry if requested. | |
| 62 | + */ | |
| 63 | + if (startRegistry && registry == null) { | |
| 64 | + int localport = (port < 0) ? Registry.REGISTRY_PORT : port; | |
| 65 | + registry = LocateRegistry.createRegistry(localport); | |
| 66 | + bind(name, remoteHost); | |
| 67 | + } | |
| 68 | + else { | |
| 69 | + System.out.println("Could not contact registry\n" | |
| 70 | + + e.getMessage()); | |
| 71 | + e.printStackTrace(); | |
| 72 | + } | |
| 73 | + } catch (RemoteException e) { | |
| 74 | + System.err.println("Could not bind " + name + " to RMI Registry"); | |
| 75 | + e.printStackTrace(); | |
| 76 | + } | |
| 77 | + } | |
| 78 | + | |
| 79 | + public static void main(String[] args) { | |
| 80 | + String rminame = null; | |
| 81 | + int argc = 0; | |
| 82 | + | |
| 83 | + for ( ; (argc < args.length) && (args[argc].startsWith("-")); argc++) { | |
| 84 | + String arg = args[argc]; | |
| 85 | + | |
| 86 | + if (arg.compareTo("-nr") == 0) { | |
| 87 | + startRegistry = false; | |
| 88 | + } else if (arg.startsWith("-p")) { | |
| 89 | + if (arg.compareTo("-p") != 0) { | |
| 90 | + port = Integer.parseInt(arg.substring(2)); | |
| 91 | + } else { | |
| 92 | + argc++; | |
| 93 | + if (argc >= args.length) { | |
| 94 | + printUsage(); | |
| 95 | + System.exit(1); | |
| 96 | + } | |
| 97 | + port = Integer.parseInt(args[argc]); | |
| 98 | + } | |
| 99 | + } else if (arg.startsWith("-n")) { | |
| 100 | + if (arg.compareTo("-n") != 0) { | |
| 101 | + rminame = arg.substring(2); | |
| 102 | + } else { | |
| 103 | + argc++; | |
| 104 | + if (argc >= args.length) { | |
| 105 | + printUsage(); | |
| 106 | + System.exit(1); | |
| 107 | + } | |
| 108 | + rminame = args[argc]; | |
| 109 | + } | |
| 110 | + } else { | |
| 111 | + printUsage(); | |
| 112 | + System.exit(1); | |
| 113 | + } | |
| 114 | + } | |
| 115 | + | |
| 116 | + if (argc < args.length) { | |
| 117 | + printUsage(); | |
| 118 | + System.exit(1); | |
| 119 | + } | |
| 120 | + | |
| 121 | + if (System.getSecurityManager() == null) { | |
| 122 | + System.setSecurityManager(new RMISecurityManager()); | |
| 123 | + } | |
| 124 | + | |
| 125 | + StringBuilder name = new StringBuilder(); | |
| 126 | + | |
| 127 | + if (port >= 0) { | |
| 128 | + name.append("//:").append(port); | |
| 129 | + } | |
| 130 | + | |
| 131 | + if (rminame == null) { | |
| 132 | + rminame = "JStatRemoteHost"; | |
| 133 | + } | |
| 134 | + | |
| 135 | + name.append("/").append(rminame); | |
| 136 | + | |
| 137 | + try { | |
| 138 | + // use 1.5.0 dynamically generated subs. | |
| 139 | + System.setProperty("java.rmi.server.ignoreSubClasses", "true"); | |
| 140 | + RemoteHostImpl remoteHost = new RemoteHostImpl(); | |
| 141 | + RemoteHost stub = (RemoteHost) UnicastRemoteObject.exportObject( | |
| 142 | + remoteHost, 0); | |
| 143 | + bind(name.toString(), remoteHost); | |
| 144 | + } catch (MalformedURLException e) { | |
| 145 | + if (rminame != null) { | |
| 146 | + System.out.println("Bad RMI server name: " + rminame); | |
| 147 | + } else { | |
| 148 | + System.out.println("Bad RMI URL: " + name + " : " | |
| 149 | + + e.getMessage()); | |
| 150 | + } | |
| 151 | + System.exit(1); | |
| 152 | + } catch (java.rmi.ConnectException e) { | |
| 153 | + // could not attach to or create a registry | |
| 154 | + System.out.println("Could not contact RMI registry\n" | |
| 155 | + + e.getMessage()); | |
| 156 | + System.exit(1); | |
| 157 | + } catch (Exception e) { | |
| 158 | + System.out.println("Could not create remote object\n" | |
| 159 | + + e.getMessage()); | |
| 160 | + e.printStackTrace(); | |
| 161 | + System.exit(1); | |
| 162 | + } | |
| 163 | + } | |
| 164 | +} | |