Mercurial > hg > Members > kazuma > jungle-ormapper

comparison src/main/java/jp/ac/u_ryukyu/ie/cr/jungle/DefaultJungleTree.java @ 0:44465893e8b8

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author Kazuma
date Wed, 30 Nov 2016 01:47:55 +0900
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-1:000000000000 0:44465893e8b8
1 package jp.ac.u_ryukyu.ie.cr.jungle;
2
3 import jp.ac.u_ryukyu.ie.cr.jungle.store.NodePath;
4 import jp.ac.u_ryukyu.ie.cr.jungle.util.Error;
5 import jp.ac.u_ryukyu.ie.cr.jungle.data.list.List;
6 import jp.ac.u_ryukyu.ie.cr.jungle.persistent.ChangeListWriter;
7 import jp.ac.u_ryukyu.ie.cr.jungle.store.TreeContext;
8 import jp.ac.u_ryukyu.ie.cr.jungle.store.TreeEditor;
9 import jp.ac.u_ryukyu.ie.cr.jungle.store.impl.TreeNode;
10 import jp.ac.u_ryukyu.ie.cr.jungle.transaction.DefaultJungleTreeEditor;
11 import jp.ac.u_ryukyu.ie.cr.jungle.transaction.DefaultTransactionManager;
12 import jp.ac.u_ryukyu.ie.cr.jungle.traverser.InterfaceTraverser;
13 import jp.ac.u_ryukyu.ie.cr.jungle.util.DefaultEither;
14 import jp.ac.u_ryukyu.ie.cr.jungle.util.Either;
15 import jp.ac.u_ryukyu.ie.cr.jungle.util.GetOldTreeError;
16 import jp.ac.u_ryukyu.ie.cr.jungle.store.index.ParentIndex;
17 import jp.ac.u_ryukyu.ie.cr.jungle.data.treemap.TreeMap;
18
19 import java.util.concurrent.atomic.AtomicReference;
20
21 public class DefaultJungleTree implements JungleTree {
22
23 private final AtomicReference<TreeContext> repository;
24 private final String uuid;
25 private final ChangeListWriter writer;
26 private final TreeEditor treeEditor;
27
28 public DefaultJungleTree(TreeContext tc, String uuid, ChangeListWriter writer, TreeEditor editor) {
29 this.repository = new AtomicReference<TreeContext>(tc);
30 this.uuid = uuid;
31 this.writer = writer;
32 this.treeEditor = editor;
33 }
34
35 @Override
36 public JungleTreeEditor getTreeEditor() {
37 TreeContext tc = repository.get();
38 DefaultTransactionManager txManager = new DefaultTransactionManager(writer, tc, repository, uuid);
39 TreeNode root = tc.getRoot();
40 return new DefaultJungleTreeEditor(root, txManager, treeEditor);
41 }
42
43 @Override
44 public JungleTreeEditor getLocalTreeEditor() {
45 return getTreeEditor();
46 }
47
48 @Override
49 public TreeNode getRootNode() {
50 TreeContext tc = repository.get();
51 return tc.getRoot();
52 }
53
54 @Override
55 public InterfaceTraverser getTraverser(boolean useIndex) {
56 TreeContext tc = repository.get();
57 return tc.getTraverser();
58 }
59
60 @Override
61 public ParentIndex getParentIndex() {
62 TreeContext tc = repository.get();
63 return tc.getParentIndex();
64 }
65
66 @Override
67 public TreeMap<String, TreeMap<String, List<TreeNode>>> getIndex() {
68 TreeContext tc = repository.get();
69 return tc.getIndex();
70 }
71
72 @Override
73 public long revision() {
74 TreeContext tc = repository.get();
75 return tc.revision();
76 }
77
78 @Override
79 public Either<Error, JungleTree> getOldTree(long revision) {
80 TreeContext tc = repository.get();
81
82 for (; tc.revision() != revision; ) {
83 tc = tc.prev();
84 if (tc == null)
85 return DefaultEither.newA(GetOldTreeError.OLD_TREE_NOT_FOUND);
86 }
87
88
89 String oldTreeUuid = uuid + revision;
90 JungleTree oldTree = new DefaultJungleTree(tc, oldTreeUuid, writer, treeEditor);
91 return DefaultEither.newB(oldTree);
92 }
93
94 @Override
95 public Either<jp.ac.u_ryukyu.ie.cr.jungle.util.Error, TreeNode> getNodeOfPath(NodePath path) {
96 TreeNode node = repository.get().getRoot();
97 for (int num : path) {
98 if (num == -1)
99 continue;
100 Either<Error, TreeNode> either = node.getChildren().at(num);
101 if (either.isA())
102 return either;
103 node = either.b();
104 }
105 return DefaultEither.newB(node);
106 }
107
108 @Override
109 public void setBufferSize(int _bufferSize) {
110 // not use
111 }
112
113 }