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comparison src/org/dancres/blitz/remote/perf/LeaseImpl.java @ 0:3dc0c5604566

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Initial checkin of blitz 2.0 fcs - no installer yet.
author Dan Creswell <dan.creswell@gmail.com>
date Sat, 21 Mar 2009 11:00:06 +0000
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1 package org.dancres.blitz.remote.perf;
2
3 import java.rmi.RemoteException;
4
5 import com.sun.jini.lease.AbstractLease;
6
7 import net.jini.core.lease.UnknownLeaseException;
8 import net.jini.core.lease.LeaseDeniedException;
9 import net.jini.core.lease.LeaseMap;
10 import net.jini.core.lease.Lease;
11
12 import net.jini.id.Uuid;
13 import net.jini.id.ReferentUuid;
14
15 import org.dancres.blitz.lease.SpaceUID;
16
17 /**
18 Generic lease implementation used to wrap all Blitz's internal lease
19 implementations.
20 */
21 class LeaseImpl extends AbstractLease implements ReferentUuid {
22 Landlord theStub;
23 Uuid theUuid;
24
25 private SpaceUID theUID;
26
27 LeaseImpl(Landlord aLandlord, Uuid aUuid, SpaceUID aUID,
28 long anExpiration) {
29
30 super(anExpiration);
31 theStub = aLandlord;
32 theUID = aUID;
33 theUuid = aUuid;
34 }
35
36 public Uuid getReferentUuid() {
37 return theUuid;
38 }
39
40 protected long doRenew(long duration)
41 throws UnknownLeaseException, LeaseDeniedException, RemoteException {
42
43 return theStub.renew(theUID, duration);
44 }
45
46 public void cancel()
47 throws UnknownLeaseException, RemoteException {
48
49 theStub.cancel(theUID);
50 }
51
52 void setExpiration(long anExpiry) {
53 expiration = anExpiry;
54 }
55
56 SpaceUID getUID() {
57 return theUID;
58 }
59
60 /**
61 Each entry in a LeaseMap needs a duration to renew for so, when we
62 create the leasemap, we insert the current lease as having the specified
63 renewal duration.
64 */
65 public LeaseMap createLeaseMap(long aDuration) {
66 return new LeaseMapImpl(this, aDuration, theStub);
67 }
68
69 public boolean canBatch(Lease aLease) {
70
71 if (aLease instanceof LeaseImpl) {
72 LeaseImpl myOther = (LeaseImpl) aLease;
73
74 return myOther.theStub.equals(theStub);
75 }
76
77 return false;
78 }
79
80 public int hashCode() {
81 return theUID.hashCode();
82 }
83
84 public boolean equals(Object anObject) {
85 if (anObject instanceof LeaseImpl) {
86 if (theUuid.equals(((LeaseImpl) anObject).theUuid)) {
87 return (theUID.equals(((LeaseImpl) anObject).theUID));
88 }
89 }
90
91 return false;
92 }
93 }