Mercurial > hg > blitz_stable

annotate src/org/dancres/blitz/remote/perf/Proxy.java @ 32:243c74d599bf

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author Dan Creswell <dan.creswell@gmail.com>
date Sat, 12 Jun 2010 10:41:47 +0100
parents 3dc0c5604566
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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0
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1 package org.dancres.blitz.remote.perf;
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2
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3 import java.io.Serializable;
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4
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5 import java.rmi.RemoteException;
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6 import java.rmi.MarshalledObject;
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7
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8 import net.jini.space.JavaSpace;
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9
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10 import net.jini.core.entry.Entry;
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11 import net.jini.core.entry.UnusableEntryException;
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12
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13 import net.jini.core.transaction.Transaction;
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14 import net.jini.core.transaction.TransactionException;
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15
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16 import net.jini.core.event.EventRegistration;
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17 import net.jini.core.event.RemoteEventListener;
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18
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19 import net.jini.core.lease.Lease;
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20
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21 import net.jini.lookup.entry.ServiceInfo;
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22 import net.jini.lookup.entry.Name;
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23
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24 import com.sun.jini.lookup.entry.BasicServiceType;
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25
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26 import net.jini.admin.Administrable;
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27
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28 import java.io.IOException;
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29 import java.io.ObjectInputStream;
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30 import java.io.FileInputStream;
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31
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32 import net.jini.id.Uuid;
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33 import net.jini.id.ReferentUuid;
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34 import net.jini.id.ReferentUuids;
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35
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36 import org.dancres.blitz.mangler.EntryMangler;
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37 import org.dancres.blitz.mangler.MangledEntry;
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38
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39 import org.dancres.blitz.VersionInfo;
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40
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41 import com.sun.jini.proxy.MarshalledWrapper;
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42
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43 /**
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44 */
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45 class Proxy implements Serializable {
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46 private Server theStub;
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47 private transient EntryMangler theMangler;
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48
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49 public static void main(String anArgs[]) {
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50 try {
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51 String myStubFile = ServiceImpl.STUB_FILE;
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52
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53 if (anArgs.length > 1)
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54 myStubFile = anArgs[1];
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55
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56 int myThreads = 1;
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57
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58 if (anArgs.length > 0)
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59 myThreads = Integer.parseInt(anArgs[0]);
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60
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61 ObjectInputStream myOIS =
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62 new ObjectInputStream(new FileInputStream(myStubFile));
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63
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64 Server myStub = (Server) myOIS.readObject();
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65
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66 System.out.println(myStub);
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67
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68 Proxy myProxy = new Proxy(myStub);
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69
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70 Thrasher[] myThrashers = new Thrasher[myThreads];
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71
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72 for (int i = 0; i < myThreads; i++) {
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73 myThrashers[i] = new Thrasher(myProxy);
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74 myThrashers[i].start();
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75 }
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76
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77 new Watcher(myThrashers).start();
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78
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79 } catch (Exception anE) {
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80 System.err.println("Failed to init proxy");
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81 anE.printStackTrace(System.err);
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82 }
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83 }
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84
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85 private static class Watcher extends Thread {
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86 private Thrasher[] theThrashers;
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87
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88 Watcher(Thrasher[] aThrashers) {
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89 theThrashers = aThrashers;
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90 }
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91
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92 public void run() {
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93 while(true) {
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94 try {
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95 Thread.sleep(60000);
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96
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97 for (int i = 0; i < theThrashers.length; i++) {
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98 theThrashers[i].dumpCounts();
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99 }
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100 } catch (InterruptedException anIE) {
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101 System.err.println("Dead watcher");
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102 }
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103 }
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104 }
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105 }
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106
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107 private static class Thrasher extends Thread {
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108 private Proxy theProxy;
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109 private long theCount;
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110
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111 Thrasher(Proxy aProxy) {
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112 theProxy = aProxy;
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113 }
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114
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115 public void run() {
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116 while (true) {
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117 try {
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118 DummyEntry myPackedEntry = new DummyEntry("rhubarb");
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119
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120 theProxy.read(myPackedEntry, null, 0);
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121 theProxy.write(myPackedEntry, null, 0);
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122
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123 synchronized(this) {
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124 ++theCount;
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125 }
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126 } catch (Exception anE) {
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127 System.err.println("Thrasher died: " + anE);
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128 }
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129 }
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130 }
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131
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132 public void dumpCounts() {
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133 synchronized(this) {
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134 System.out.println("Write/read combos: " + theCount);
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135 theCount = 0;
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136 }
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137 }
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138 }
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139
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140 Proxy(Server aServer) {
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141 theStub = aServer;
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142 }
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143
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144 private synchronized EntryMangler getMangler() {
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145 if (theMangler == null)
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146 theMangler = new EntryMangler();
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147
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148 return theMangler;
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149 }
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150
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151 private MangledEntry packEntry(Entry anEntry) {
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152 if (anEntry == null)
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153 return MangledEntry.NULL_TEMPLATE;
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154 // Is it a snapshot?
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155 else if (anEntry instanceof MangledEntry)
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156 return (MangledEntry) anEntry;
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157 else
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158 return getMangler().mangle(anEntry);
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159 }
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160
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161 public Lease write(Entry entry, Transaction txn, long lease)
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162 throws TransactionException, RemoteException {
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163
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164 return theStub.write(packEntry(entry), txn, lease);
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165 }
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166
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167 public Entry read(Entry tmpl, Transaction txn, long timeout)
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168 throws UnusableEntryException, TransactionException,
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169 InterruptedException, RemoteException {
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170
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171 MangledEntry myResult =
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172 theStub.read(packEntry(tmpl), txn, timeout);
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173
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174 return (myResult != null) ?
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175 getMangler().unMangle(myResult) : null;
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176 }
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177
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178 static final class SnapshotEntry implements Entry {
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179 private MangledEntry thePackage;
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180
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181 SnapshotEntry(MangledEntry aPackage) {
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182 thePackage = aPackage;
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183 }
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184
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185 MangledEntry getPackage() {
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186 return thePackage;
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187 }
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188 }
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189 }