Mercurial > hg > blitz_stable

annotate src/org/dancres/blitz/remote/perf/LeaseImpl.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
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1 package org.dancres.blitz.remote.perf;
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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 com.sun.jini.lease.AbstractLease;
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6
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7 import net.jini.core.lease.UnknownLeaseException;
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8 import net.jini.core.lease.LeaseDeniedException;
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9 import net.jini.core.lease.LeaseMap;
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10 import net.jini.core.lease.Lease;
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11
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12 import net.jini.id.Uuid;
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13 import net.jini.id.ReferentUuid;
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14
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15 import org.dancres.blitz.lease.SpaceUID;
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16
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17 /**
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18 Generic lease implementation used to wrap all Blitz's internal lease
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19 implementations.
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20 */
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21 class LeaseImpl extends AbstractLease implements ReferentUuid {
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22 Landlord theStub;
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23 Uuid theUuid;
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24
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25 private SpaceUID theUID;
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26
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27 LeaseImpl(Landlord aLandlord, Uuid aUuid, SpaceUID aUID,
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28 long anExpiration) {
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29
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30 super(anExpiration);
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31 theStub = aLandlord;
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32 theUID = aUID;
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33 theUuid = aUuid;
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34 }
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35
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36 public Uuid getReferentUuid() {
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37 return theUuid;
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38 }
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39
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40 protected long doRenew(long duration)
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41 throws UnknownLeaseException, LeaseDeniedException, RemoteException {
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42
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43 return theStub.renew(theUID, duration);
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44 }
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45
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46 public void cancel()
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47 throws UnknownLeaseException, RemoteException {
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48
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49 theStub.cancel(theUID);
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50 }
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51
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52 void setExpiration(long anExpiry) {
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53 expiration = anExpiry;
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54 }
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55
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56 SpaceUID getUID() {
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57 return theUID;
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58 }
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59
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60 /**
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61 Each entry in a LeaseMap needs a duration to renew for so, when we
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62 create the leasemap, we insert the current lease as having the specified
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63 renewal duration.
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64 */
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65 public LeaseMap createLeaseMap(long aDuration) {
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66 return new LeaseMapImpl(this, aDuration, theStub);
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67 }
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68
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69 public boolean canBatch(Lease aLease) {
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70
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71 if (aLease instanceof LeaseImpl) {
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72 LeaseImpl myOther = (LeaseImpl) aLease;
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73
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74 return myOther.theStub.equals(theStub);
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75 }
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76
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77 return false;
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78 }
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79
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80 public int hashCode() {
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81 return theUID.hashCode();
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82 }
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83
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84 public boolean equals(Object anObject) {
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85 if (anObject instanceof LeaseImpl) {
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86 if (theUuid.equals(((LeaseImpl) anObject).theUuid)) {
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87 return (theUID.equals(((LeaseImpl) anObject).theUID));
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88 }
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89 }
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90
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91 return false;
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92 }
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93 }