Mercurial > hg > blitz_condensed
annotate src/org/dancres/blitz/remote/TxnParticipantProxy.java @ 0:3dc0c5604566
Initial checkin of blitz 2.0 fcs - no installer yet.
author | Dan Creswell <dan.creswell@gmail.com> |
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date | Sat, 21 Mar 2009 11:00:06 +0000 |
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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 } |