105
|
1 package alice.jungle.persistent;
|
85
|
2
|
179
|
3 import fj.data.List;
|
|
4 import fj.data.TreeMap;
|
88
|
5 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.persistent.ChangeListWriter;
|
85
|
6 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.persistent.Result;
|
|
7 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.ChangeSet;
|
180
|
8 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.NodePath;
|
85
|
9 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.TreeNode;
|
|
10 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.logger.TreeOperationLog;
|
|
11 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.AtomicReservableReference;
|
|
12 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.DefaultTreeContext;
|
|
13 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.TransactionManager;
|
|
14 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.TreeContext;
|
|
15 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.AtomicReservableReference.Reservation;
|
|
16 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.DefaultEither;
|
|
17 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.DefaultError;
|
|
18 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Either;
|
|
19 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Error;
|
180
|
20 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Pair;
|
85
|
21
|
178
|
22 public class PersistentTransactionManager implements TransactionManager {
|
|
23 private final AtomicReservableReference<TreeContext> repository;
|
|
24 private final TreeContext tip;
|
88
|
25 private final ChangeListWriter writer;
|
85
|
26 private final String uuid;
|
|
27 private final String treeName;
|
|
28
|
178
|
29 public PersistentTransactionManager(String _treeName, ChangeListWriter _writer,TreeContext _tip,
|
|
30 AtomicReservableReference<TreeContext> _repository,String _uuid)
|
85
|
31 {
|
|
32 repository = _repository;
|
|
33 tip = _tip;
|
|
34 writer = _writer;
|
|
35 uuid = _uuid;
|
|
36 treeName = _treeName;
|
|
37 }
|
|
38
|
|
39 @Override
|
180
|
40 public Either<Error, TransactionManager> commit(TreeNode _newRoot,final TreeOperationLog _log,TreeMap<String, TreeMap<String, List<Pair<TreeNode, NodePath>>>> index) {
|
85
|
41 ChangeSet cs = tip.getChangeSet();
|
|
42 long currentRevision = cs.revision();
|
|
43 long nextRevision = currentRevision + 1;
|
|
44
|
87
|
45 PersistentChangeList list = new PersistentChangeList(uuid, treeName, _log);
|
176
|
46 TreeNode root = _newRoot;
|
87
|
47 PersistentChangeSet newCs = new PersistentChangeSet(root, cs, list, uuid, treeName, nextRevision);
|
178
|
48 DefaultTreeContext newContext = new DefaultTreeContext(_newRoot,newCs);
|
85
|
49
|
|
50 @SuppressWarnings("rawtypes")
|
|
51 Reservation reservation = repository.makeReservation(tip, newContext);
|
|
52 if(reservation == null) {
|
|
53 return DefaultEither.newA((Error)new DefaultError());
|
|
54 }
|
87
|
55 Result r = writer.write(list);
|
85
|
56 if(r != Result.SUCCESS) {
|
|
57 return DefaultEither.newA((Error)new DefaultError());
|
|
58 }
|
|
59 reservation.confirm();
|
178
|
60 TransactionManager txManager = new PersistentTransactionManager(treeName, writer, newContext, repository, uuid);
|
85
|
61 return DefaultEither.newB(txManager);
|
|
62 }
|
|
63
|
|
64 @Override
|
|
65 public long getRevision()
|
|
66 {
|
|
67 ChangeSet cs = tip.getChangeSet();
|
|
68 return cs.revision();
|
|
69 }
|
|
70
|
|
71 @Override
|
|
72 public String getUUID() {
|
|
73 return uuid;
|
|
74 }
|
|
75
|
|
76
|
|
77
|
|
78 }
|