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annotate src/org/dancres/blitz/remote/TxnParticipantProxy.java @ 35:6f68e94c1fb8 default tip

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Add CondensedStats monitoring utility, equivalent to vmstat
author Dominic Cleal <dominic-cleal@cdo2.com>
date Thu, 05 Aug 2010 11:07:25 +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;
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2
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3 import java.rmi.RemoteException;
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4
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5 import java.io.Serializable;
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6 import java.io.IOException;
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7
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8 import net.jini.core.transaction.server.TransactionParticipant;
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9 import net.jini.core.transaction.server.TransactionManager;
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10
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11 import net.jini.core.transaction.UnknownTransactionException;
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12
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13 import net.jini.id.Uuid;
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14 import net.jini.id.ReferentUuid;
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15 import net.jini.id.ReferentUuids;
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16
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17 import org.dancres.blitz.remote.nio.FastSpace;
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18
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19 public class TxnParticipantProxy implements Serializable, ReferentUuid,
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20 TransactionParticipant {
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21
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22 FastSpace theFast;
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23 TransactionParticipant theStub;
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24 Uuid theUuid;
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25
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26 TxnParticipantProxy(TransactionParticipant aStub, Uuid aUuid) {
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27 theStub = aStub;
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28 theUuid = aUuid;
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29 }
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30
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31 void enableFastIO(FastSpace aSpace) {
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32 theFast = aSpace;
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33 }
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34
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35 synchronized FastSpace getFastChannel() {
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36 if (theFast != null) {
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37 if (! theFast.isInited()) {
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38 try {
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39 theFast.init();
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40 } catch (IOException anIOE) {
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41 throw new Error("Panic: fast io didn't init", anIOE);
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42 }
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43 }
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44 }
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45
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46 return theFast;
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47 }
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48
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49 public Uuid getReferentUuid() {
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50 return theUuid;
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51 }
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52
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53 public int prepare(TransactionManager aMgr, long anId)
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54 throws UnknownTransactionException, RemoteException {
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55
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56 if (getFastChannel() != null)
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57 return getFastChannel().prepare(aMgr, anId);
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58 else
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59 return theStub.prepare(aMgr, anId);
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60 }
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61
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62 public void commit(TransactionManager aMgr, long anId)
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63 throws UnknownTransactionException, RemoteException {
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64
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65 if (getFastChannel() != null)
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66 getFastChannel().commit(aMgr, anId);
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67 else
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68 theStub.commit(aMgr, anId);
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69 }
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70
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71 public void abort(TransactionManager aMgr, long anId)
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72 throws UnknownTransactionException, RemoteException {
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73
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74 if (getFastChannel() != null)
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75 getFastChannel().abort(aMgr, anId);
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76 else
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77 theStub.abort(aMgr, anId);
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78 }
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79
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80 public int prepareAndCommit(TransactionManager aMgr, long anId)
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81 throws UnknownTransactionException, RemoteException {
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82
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83 if (getFastChannel() != null)
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84 return getFastChannel().prepareAndCommit(aMgr, anId);
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85 else
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86 return theStub.prepareAndCommit(aMgr, anId);
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87 }
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88
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89 public boolean equals(Object anObject) {
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90 return ReferentUuids.compare(this, anObject);
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91 }
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92
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93 public int hashCode() {
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94 return theUuid.hashCode();
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95 }
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96 }