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comparison src/org/dancres/blitz/remote/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;
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 public class LeaseImpl extends AbstractLease implements ReferentUuid {
22 Landlord theStub;
23 Uuid theUuid;
24
25 private SpaceUID theUID;
26
27 public 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 void setLandlord(Landlord aLandlord, Uuid aUid) {
37 theStub = aLandlord;
38 theUuid = aUid;
39 }
40
41 public Uuid getReferentUuid() {
42 return theUuid;
43 }
44
45 protected long doRenew(long duration)
46 throws UnknownLeaseException, LeaseDeniedException, RemoteException {
47
48 return theStub.renew(theUID, duration);
49 }
50
51 public void cancel()
52 throws UnknownLeaseException, RemoteException {
53
54 theStub.cancel(theUID);
55 }
56
57 void setExpiration(long anExpiry) {
58 expiration = anExpiry;
59 }
60
61 SpaceUID getUID() {
62 return theUID;
63 }
64
65 /**
66 Each entry in a LeaseMap needs a duration to renew for so, when we
67 create the leasemap, we insert the current lease as having the specified
68 renewal duration.
69 */
70 public LeaseMap createLeaseMap(long aDuration) {
71 return new LeaseMapImpl(this, aDuration, theStub);
72 }
73
74 public boolean canBatch(Lease aLease) {
75
76 if (aLease instanceof LeaseImpl) {
77 LeaseImpl myOther = (LeaseImpl) aLease;
78
79 return myOther.theStub.equals(theStub);
80 }
81
82 return false;
83 }
84
85 public int hashCode() {
86 return theUID.hashCode();
87 }
88
89 public boolean equals(Object anObject) {
90 if (anObject instanceof LeaseImpl) {
91 if (theUuid.equals(((LeaseImpl) anObject).theUuid)) {
92 return (theUID.equals(((LeaseImpl) anObject).theUID));
93 }
94 }
95
96 return false;
97 }
98
99 public String toString() {
100 return "LeaseImpl: " + theUID;
101 }
102 }