Mercurial > hg > blitz_condensed
annotate src/org/dancres/blitz/tools/MonitorStats.java @ 33:0b9265358617
Added tag 2.1.1 for changeset a77f0a9ed93c
author | Dan Creswell <dan.creswell@gmail.com> |
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date | Sat, 12 Jun 2010 10:52:10 +0100 |
parents | 3dc0c5604566 |
children | 6f68e94c1fb8 |
rev | line source |
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0
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1 package org.dancres.blitz.tools; |
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2 |
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3 import java.io.IOException; |
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4 |
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5 import java.rmi.RemoteException; |
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6 import java.rmi.RMISecurityManager; |
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7 |
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8 import net.jini.discovery.*; |
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9 |
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10 import net.jini.lookup.*; |
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11 import net.jini.lookup.entry.Name; |
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12 |
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13 import net.jini.core.lookup.ServiceItem; |
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14 import net.jini.core.lookup.ServiceTemplate; |
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15 |
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16 import net.jini.core.entry.Entry; |
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17 |
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18 import net.jini.admin.Administrable; |
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19 |
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20 import net.jini.space.JavaSpace; |
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21 |
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22 import net.jini.core.transaction.TransactionException; |
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23 |
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24 import org.dancres.blitz.remote.BlitzAdmin; |
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25 |
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26 import org.dancres.jini.util.DiscoveryUtil; |
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27 import org.dancres.jini.util.ServiceLocator; |
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28 |
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29 import org.dancres.blitz.stats.*; |
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30 |
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31 import org.dancres.blitz.remote.StatsAdmin; |
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32 |
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33 /** |
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34 <p>MonitorStats accepts a spacename as an argument and a loop time. It then |
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35 attempts to list all available statistics on the space every loop time |
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36 seconds. Specifying a loop time of 0 will cause MonitorStats to dump |
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37 stats once and exit.</p> |
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38 |
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39 <p>Typical usage: |
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40 |
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41 <pre> |
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42 java -Xmx256m -Djava.security.policy=config/policy.all |
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43 -classpath /home/dan/jini/jini2_0/lib/jsk-platform.jar:/home/dan/src/jini/space/build:/home/dan/jini/jini2_0/lib/jini-ext.jar:/home/dan/jini/jini2_0/lib/sun-util.jar |
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44 org.dancres.blitz.tools.MonitorStats dancres 20 |
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45 </pre> |
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46 |
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47 @see org.dancres.blitz.remote.BlitzAdmin |
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48 */ |
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49 public class MonitorStats { |
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50 private static final long MAX_DISCOVER_TIME = 15 * 1000; |
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51 |
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52 public static void main(String args[]) { |
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53 if (System.getSecurityManager() == null) |
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54 System.setSecurityManager(new RMISecurityManager()); |
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55 |
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56 try { |
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57 try { |
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58 long myTimeout = 20 * 1000; |
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59 |
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60 Object myProxy = null; |
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61 |
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62 if (args.length == 2) { |
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63 myProxy = ServiceLocator.getService(JavaSpace.class, |
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64 args[0], |
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65 MAX_DISCOVER_TIME); |
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66 myTimeout = Integer.parseInt(args[1]) * 1000; |
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67 } else if (args.length == 3) { |
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68 myProxy = ServiceLocator.getService(args[0], |
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69 JavaSpace.class, |
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70 args[1]); |
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71 myTimeout = Integer.parseInt(args[2]) * 1000; |
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72 } else { |
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73 System.err.println( |
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74 "Wrong number of arguments - should be <spacename> <seconds> or <LUS host> <spacename> <seconds>"); |
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75 System.exit(-1); |
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76 } |
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77 |
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78 if (myProxy != null) { |
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79 System.err.println("Found space: " + myProxy); |
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80 |
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81 DiscoveryUtil.dumpInterfaces(myProxy.getClass()); |
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82 |
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83 if (DiscoveryUtil.hasInterface(myProxy, |
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84 Administrable.class)) { |
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85 Administrable myAdmin = (Administrable) myProxy; |
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86 |
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87 Object myAdminProxy = myAdmin.getAdmin(); |
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88 |
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89 DiscoveryUtil.dumpInterfaces(myAdminProxy.getClass()); |
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90 |
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91 if (DiscoveryUtil.hasInterface(myAdminProxy, |
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92 StatsAdmin.class)) { |
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93 StatsAdmin myStatsAdmin = |
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94 (StatsAdmin) myAdminProxy; |
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95 |
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96 if (myTimeout == 0) { |
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97 Stat[] myStats = myStatsAdmin.getStats(); |
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98 |
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99 System.out.println("Snapshot: " + |
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100 System.currentTimeMillis()); |
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101 for (int i = 0; i < myStats.length; i++) { |
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102 System.out.println(myStats[i]); |
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103 } |
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104 |
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105 System.out.println(); |
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106 |
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107 } else { |
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108 new Watcher(myStatsAdmin, myTimeout).start(); |
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109 } |
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110 } else { |
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111 System.err.println("No BlitzAdmin interface found - can't be Blitz"); |
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112 } |
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113 } else { |
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114 System.err.println("No admin interface present - can't be Blitz"); |
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115 } |
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116 } |
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117 } catch (InterruptedException anIE) { |
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118 System.err.println("!!! Whoops service not found :( !!!"); |
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119 } |
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120 } catch (ClassNotFoundException aCNFE) { |
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121 System.err.println("ClassNotFound exception"); |
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122 aCNFE.printStackTrace(System.err); |
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123 } catch (RemoteException anRE) { |
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124 System.err.println("Remote exception"); |
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125 anRE.printStackTrace(System.err); |
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126 } catch (IOException anIOE) { |
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127 System.err.println("Failed to configure discovery"); |
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128 anIOE.printStackTrace(System.err); |
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129 } |
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130 } |
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131 |
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132 static class Watcher extends Thread { |
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133 private StatsAdmin theAdmin; |
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134 private long theTimeout; |
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135 |
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136 Watcher(StatsAdmin anAdmin, long aTimeout) { |
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137 theAdmin = anAdmin; |
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138 theTimeout = aTimeout; |
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139 } |
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140 |
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141 public void run() { |
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142 while (true) { |
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143 try { |
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144 Stat[] myStats = theAdmin.getStats(); |
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145 |
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146 System.out.println("Snapshot: " + |
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147 System.currentTimeMillis()); |
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148 for (int i = 0; i < myStats.length; i++) { |
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149 System.out.println(myStats[i]); |
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150 } |
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151 |
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152 System.out.println(); |
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153 |
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154 Thread.sleep(theTimeout); |
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155 } catch (Exception anE) { |
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156 System.err.println(anE); |
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157 } |
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158 } |
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159 } |
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160 } |
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161 } |