1 /* |
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2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 |
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24 import java.io.File; |
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25 import java.io.IOException; |
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26 import java.io.RandomAccessFile; |
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27 import java.util.Objects; |
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28 |
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29 import sun.management.jdp.JdpJmxPacket; |
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30 import sun.management.jdp.JdpException; |
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31 |
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32 public class JdpDoSomething { |
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33 |
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34 private static final String lockFileName = "JdpDoSomething.lck"; |
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35 private static final boolean verbose = false; |
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36 |
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37 public static boolean getVerbose() { |
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38 return verbose; |
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39 } |
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40 |
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41 public static void printJdpPacket(JdpJmxPacket p) { |
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42 if (getVerbose()) { |
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43 try { |
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44 RandomAccessFile f = new RandomAccessFile("out.dmp", "rw"); |
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45 f.write(p.getPacketData()); |
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46 f.close(); |
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47 } catch (IOException e) { |
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48 System.out.println("Can't write a dump file: " + e); |
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49 } |
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50 |
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51 System.out.println("Id: " + p.getId()); |
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52 System.out.println("Jmx: " + p.getJmxServiceUrl()); |
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53 System.out.println("Main: " + p.getMainClass()); |
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54 System.out.println("InstanceName: " + p.getInstanceName()); |
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55 System.out.println("ProccessId: " + p.getProcessId()); |
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56 System.out.println("BroadcastInterval: " + p.getBroadcastInterval()); |
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57 System.out.println("Rmi Hostname: " + p.getRmiHostname()); |
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58 |
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59 System.out.flush(); |
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60 } |
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61 } |
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62 |
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63 public static void compaireJdpPacketEx(JdpJmxPacket p1, JdpJmxPacket p2) |
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64 throws JdpException { |
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65 |
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66 if (!Objects.equals(p1, p1)) { |
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67 throw new JdpException("Packet mismatch error"); |
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68 } |
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69 |
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70 if (!Objects.equals(p1.getMainClass(), p2.getMainClass())) { |
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71 throw new JdpException("Packet mismatch error (main class)"); |
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72 } |
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73 |
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74 if (!Objects.equals(p1.getInstanceName(), p2.getInstanceName())) { |
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75 throw new JdpException("Packet mismatch error (instance name)"); |
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76 } |
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77 } |
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78 |
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79 public static void doSomething() { |
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80 try { |
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81 File lockFile = new File(lockFileName); |
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82 lockFile.createNewFile(); |
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83 |
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84 while (lockFile.exists()) { |
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85 long datetime = lockFile.lastModified(); |
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86 long epoch = System.currentTimeMillis() / 1000; |
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87 |
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88 // Don't allow test app to run more than an hour |
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89 if (epoch - datetime > 3600) { |
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90 System.err.println("Lock is too old. Aborting"); |
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91 return; |
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92 } |
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93 Thread.sleep(1); |
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94 } |
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95 |
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96 } catch (Throwable e) { |
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97 System.err.println("Something bad happens:" + e); |
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98 } |
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99 } |
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100 |
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101 public static void main(String args[]) throws Exception { |
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102 System.err.println("main enter"); |
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103 doSomething(); |
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104 System.err.println("main exit"); |
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105 } |
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106 } |
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