Mercurial > hg > Members > kazuma > jungle-ormapper

comparison src/main/java/jp/ac/u_ryukyu/ie/cr/jungle/transaction/DefaultJungleTreeEditor.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.transaction;
2
3 import jp.ac.u_ryukyu.ie.cr.jungle.JungleTreeEditor;
4 import jp.ac.u_ryukyu.ie.cr.jungle.store.NodePath;
5 import jp.ac.u_ryukyu.ie.cr.jungle.store.TreeEditor;
6 import jp.ac.u_ryukyu.ie.cr.jungle.store.impl.DefaultNodePath;
7 import jp.ac.u_ryukyu.ie.cr.jungle.store.impl.TreeNode;
8 import jp.ac.u_ryukyu.ie.cr.jungle.store.impl.logger.DefaultTreeOperationLog;
9 import jp.ac.u_ryukyu.ie.cr.jungle.store.impl.logger.LoggingNode;
10 import jp.ac.u_ryukyu.ie.cr.jungle.store.impl.logger.OperationLog;
11 import jp.ac.u_ryukyu.ie.cr.jungle.store.impl.logger.TreeOperationLog;
12 import jp.ac.u_ryukyu.ie.cr.jungle.store.operations.DefaultTreeOperation;
13 import jp.ac.u_ryukyu.ie.cr.jungle.store.operations.NodeOperation;
14 import jp.ac.u_ryukyu.ie.cr.jungle.store.operations.TreeOperation;
15 import jp.ac.u_ryukyu.ie.cr.jungle.store.trasnformer.*;
16 import jp.ac.u_ryukyu.ie.cr.jungle.util.DefaultEither;
17 import jp.ac.u_ryukyu.ie.cr.jungle.util.Either;
18 import jp.ac.u_ryukyu.ie.cr.jungle.util.Error;
19 import jp.ac.u_ryukyu.ie.cr.jungle.util.IterableConverter;
20
21 import java.nio.ByteBuffer;
22
23 public class DefaultJungleTreeEditor implements JungleTreeEditor
24 {
25 private final TransactionManager txManager;
26 private final TreeNode root;
27 private final TreeEditor editor;
28 private final TreeOperationLog log;
29
30
31 public DefaultJungleTreeEditor(TreeNode _root,TransactionManager _txManager,TreeEditor _editor)
32 {
33 this(_root,_txManager,_editor,new DefaultTreeOperationLog());
34 }
35
36
37
38 public DefaultJungleTreeEditor(TreeNode newNode,TransactionManager _txManager,TreeEditor _editor,TreeOperationLog _log)
39 {
40 this.root = newNode;
41 this.txManager = _txManager;
42 this.editor = _editor;
43 this.log = _log;
44 }
45
46 private Either<Error,JungleTreeEditor> _edit(final NodePath _path,NodeEditor _e)
47 {
48 Either<jp.ac.u_ryukyu.ie.cr.jungle.util.Error,LoggingNode> either = editor.edit(root,_path,_e);
49 if(either.isA()){
50 return DefaultEither.newA(either.a());
51 }
52
53 LoggingNode newLogging = either.b();
54 OperationLog newLog = newLogging.getOperationLog();
55 TreeNode newNode = newLogging.getWrap();
56
57 IterableConverter.Converter<TreeOperation,NodeOperation> converter = new IterableConverter.Converter<TreeOperation,NodeOperation>(){
58 @Override
59 public TreeOperation conv(NodeOperation _b){
60 return new DefaultTreeOperation(_path,_b);
61 }
62 };
63
64 Iterable<TreeOperation> iterable = new IterableConverter<>(newLog,converter);
65 DefaultTreeOperationLog treeOperationLog = new DefaultTreeOperationLog(iterable,newLog.length());
66 TreeOperationLog newTreeOpLog = log.append(treeOperationLog);
67
68 JungleTreeEditor newEditor = new DefaultJungleTreeEditor(newNode,txManager,editor,newTreeOpLog);
69 return DefaultEither.newB(newEditor);
70 }
71
72 @Override
73 public Either<Error,JungleTreeEditor> replaceNewRootNode()
74 {
75 replaceRootNodeAt appendChildAt = new replaceRootNodeAt();
76 return _edit(new DefaultNodePath(),appendChildAt);
77 }
78
79 @Override
80 public Either<Error,JungleTreeEditor> addNewChildAt(NodePath _path, int _pos)
81 {
82 AppendChildAt appendChildAt = new AppendChildAt(_pos);
83 return _edit(_path,appendChildAt);
84 }
85
86 @Override
87 public Either<Error,JungleTreeEditor> deleteChildAt(NodePath _path, int _pos)
88 {
89 DeleteChildAt deleteChildAt = new DeleteChildAt(_pos);
90 return _edit(_path,deleteChildAt);
91 }
92
93 @Override
94 public Either<Error,JungleTreeEditor> putAttribute(NodePath _path,String _key,ByteBuffer _value)
95 {
96 PutAttribute putAttribute = new PutAttribute(_key,_value);
97 return _edit(_path,putAttribute);
98 }
99
100 @Override
101 public Either<Error,JungleTreeEditor> deleteAttribute(NodePath _path, String _key)
102 {
103 DeleteAttribute deleteAttribute = new DeleteAttribute(_key);
104 return _edit(_path,deleteAttribute);
105 }
106
107 @Override
108 public Either<Error,JungleTreeEditor> edit(NodePath _path,NodeEditor _editor)
109 {
110 return _edit(_path,_editor);
111 }
112
113 @Override
114 public Either<Error,JungleTreeEditor> success()
115 {
116 Either<Error,TransactionManager> either = txManager.commit(root,log);
117 if(either.isA()){
118 return DefaultEither.newA(either.a());
119 }
120
121 TransactionManager newTxManager = either.b();
122 JungleTreeEditor newTreeEditor = new DefaultJungleTreeEditor(root,newTxManager,editor);
123
124 return DefaultEither.newB(newTreeEditor);
125 }
126
127 @Override
128 public Either<Error, JungleTreeEditor> flushSuccess() {
129 return success();
130 }
131
132
133 }