Mercurial > hg > blitz_stable

annotate src/org/dancres/blitz/tools/MonitorStats.java @ 8:fa7203ea1622

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Remove some dead code (Dave Brosius)
author Dan Creswell <dan.creswell@gmail.com>
date Sat, 23 May 2009 11:27:41 +0100
parents 3dc0c5604566
children 6f68e94c1fb8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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 }