Mercurial > hg > Database > jungle-network
annotate src/main/java/app/bbs/NetworkJungleBulletinBoard.java @ 149:06cddf529325
Modified lates renew time
author | Nobuyasu Oshiro <dimolto@cr.ie.u-ryukyu.ac.jp> |
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date | Tue, 28 Jan 2014 11:30:47 +0900 |
parents | 202ea963ec20 |
children | eef85b5faa15 |
rev | line source |
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112 | 1 package app.bbs; |
38 | 2 |
135
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3 import java.io.File; |
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4 import java.io.IOException; |
38 | 5 import java.nio.ByteBuffer; |
6 import java.util.concurrent.atomic.AtomicInteger; | |
39 | 7 |
8 import alice.jungle.core.NetworkDefaultJungle; | |
124 | 9 import alice.jungle.persistent.AliceJournal; |
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10 import alice.jungle.persistent.NetworkJournal; |
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11 import alice.jungle.persistent.PersistentJournal; |
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12 import alice.jungle.transaction.JungleUpdater; |
38 | 13 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.Jungle; |
14 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.JungleTree; | |
15 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.JungleTreeEditor; | |
125 | 16 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.bbs.BoardMessage; |
38 | 17 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.core.Children; |
18 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.core.Node; | |
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19 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.persistent.ChangeList; |
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20 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.persistent.ChangeListReader; |
38 | 21 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.DefaultNodePath; |
22 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.DefaultTreeEditor; | |
23 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.trasnformer.EditableNode; | |
24 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.trasnformer.NodeEditor; | |
25 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.traverser.DefaultTraverser; | |
26 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.DefaultEither; | |
27 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Either; | |
28 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Error; | |
29 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.IterableConverter; | |
30 | |
124 | 31 public class NetworkJungleBulletinBoard implements NetworkBulletinBoard |
38 | 32 { |
33 private final Jungle jungle; | |
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34 private final NetworkJournal journal; |
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35 private final String LOG_DIR; |
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36 private Boolean persistentFlag; |
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37 private AtomicInteger requestCounter; |
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38 |
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39 private NetworkJungleBulletinBoard(String _uuid, NetworkJournal _journal) |
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40 { |
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41 journal = _journal; |
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42 jungle = new NetworkDefaultJungle(journal, _uuid,new DefaultTreeEditor(new DefaultTraverser())); |
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43 BulletinBoardJungleManager.setJungle(jungle); |
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44 persistentFlag = false; |
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45 requestCounter = BulletinBoardJungleManager.getRequestCounter(); |
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46 LOG_DIR = "./log"; |
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47 } |
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48 |
124 | 49 public NetworkJungleBulletinBoard(String _uuid) |
38 | 50 { |
135
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51 this(_uuid, new AliceJournal()); |
124 | 52 jungle.createNewTree("boards"); |
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53 } |
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54 |
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55 public static NetworkBulletinBoard NewPersistentJungle(String _uuid) |
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56 { |
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57 NetworkJungleBulletinBoard board = new NetworkJungleBulletinBoard(_uuid, new PersistentJournal()); |
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58 board.persistentFlag = true; |
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59 return board; |
38 | 60 } |
118
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61 |
124 | 62 public void init() { |
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63 if(!persistentFlag) { |
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64 return; |
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65 } |
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66 checkAndCreateLogDirectory(); |
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67 try { |
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68 commitLogRecover(); |
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69 } catch (IOException e) { |
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70 e.printStackTrace(); |
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71 } |
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72 } |
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73 |
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74 public void checkAndCreateLogDirectory() { |
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75 File logFile = new File(LOG_DIR); |
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76 if(!logFile.exists()) { |
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77 logFile.mkdir(); |
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78 return; |
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79 } |
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80 if (logFile.isFile()) { |
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81 logFile.delete(); |
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82 logFile.mkdir(); |
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83 } |
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84 } |
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85 |
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86 public void commitLogRecover() throws IOException { |
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87 File[] logFiles = new File(LOG_DIR).listFiles(); |
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88 for(File logFile : logFiles) { |
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89 commitLogRecover(logFile); |
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90 logFile.delete(); |
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91 } |
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92 if(jungle.getTreeByName("boards") == null) { |
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93 jungle.createNewTree("boards"); |
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94 } |
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95 } |
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96 |
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97 private void commitLogRecover(File logFile) throws IOException { |
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98 journal.setInputFile(logFile); |
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99 ChangeListReader reader = journal.getReader(); |
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100 if (reader == null) return; |
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101 for (ChangeList chList : reader) { |
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102 String treeName = chList.getTreeName(); |
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103 JungleTree tree = jungle.getTreeByName(treeName); |
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104 if(tree == null) { |
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105 tree = jungle.createNewTree(treeName); |
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106 } |
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107 JungleTreeEditor editor = tree.getLocalTreeEditor(); |
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108 Either<Error, JungleTreeEditor> either = JungleUpdater.edit(editor, chList); |
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109 editor = either.b(); |
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110 if(either.isA()) { |
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111 throw new IOException("Failed commit log recovery"); |
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112 } |
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113 editor.success(); |
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114 } |
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115 } |
38 | 116 |
117 public Iterable<String> getBoards() | |
118 { | |
119 JungleTree tree = jungle.getTreeByName("boards"); | |
120 Node node = tree.getRootNode(); | |
121 Children<Node> chs = node.getChildren(); | |
122 | |
123 IterableConverter.Converter<String,Node> converter = new IterableConverter.Converter<String,Node>(){ | |
124 public String conv(Node _b) { | |
125 ByteBuffer e = _b.getAttributes().get("name"); | |
126 return new String(e.array()); | |
127 } | |
128 }; | |
129 | |
130 return new IterableConverter<String,Node>(chs,converter); | |
131 } | |
146
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132 |
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133 public long getRenewTime(String _boardName) { |
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134 JungleTree tree = jungle.getTreeByName(_boardName); |
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135 ByteBuffer b = tree.getRootNode().getAttributes().get("renewtime"); |
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136 long timestamp; |
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137 if (b == null) { |
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138 timestamp = 0; |
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139 } else { |
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140 timestamp = b.getLong(0); |
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141 } |
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142 return timestamp; |
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143 } |
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144 |
38 | 145 |
146 public void createBoards(final String _name,final String _author,final String _initMessage,final String _editKey) | |
147 { | |
143
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148 requestCounter.incrementAndGet(); |
38 | 149 if(null == jungle.createNewTree(_name)){ |
150 throw new IllegalStateException(); | |
151 } | |
152 | |
153 JungleTree tree = jungle.getTreeByName("boards"); | |
154 JungleTreeEditor editor = tree.getTreeEditor(); | |
155 DefaultNodePath root = new DefaultNodePath(); | |
156 Either<Error,JungleTreeEditor> either = editor.addNewChildAt(root,0); | |
157 if(either.isA()){ | |
158 throw new IllegalStateException(); | |
159 } | |
160 editor = either.b(); | |
161 | |
162 either = editor.putAttribute(root.add(0),"name",ByteBuffer.wrap(_name.getBytes())); | |
163 if(either.isA()){ | |
164 throw new IllegalStateException(); | |
165 } | |
166 editor = either.b(); | |
149
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167 final long timestamp = System.currentTimeMillis(); |
129
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168 ByteBuffer tBuffer = ByteBuffer.allocate(16); |
146
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169 tBuffer.putLong(timestamp); |
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170 either = editor.putAttribute(root.add(0),"timestamp", tBuffer); |
129
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171 if(either.isA()){ |
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172 throw new IllegalStateException(); |
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173 } |
146
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174 either = either.b().success(); |
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175 if(either.isA()){ |
38 | 176 throw new IllegalStateException(); |
177 } | |
178 | |
146
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179 |
38 | 180 tree = jungle.getTreeByName(_name); |
181 editor = tree.getTreeEditor(); | |
182 either = editor.addNewChildAt(root,0); | |
183 if(either.isA()){ | |
184 throw new IllegalStateException(); | |
185 } | |
186 editor = either.b(); | |
187 | |
188 NodeEditor e = new NodeEditor(){ | |
189 public <T extends EditableNode<T>> Either<Error, T> edit(T _e){ | |
190 _e = _e.getAttributes().put("author",ByteBuffer.wrap(_author.getBytes())).b(); | |
191 _e = _e.getAttributes().put("mes",ByteBuffer.wrap(_initMessage.getBytes())).b(); | |
192 _e = _e.getAttributes().put("key",ByteBuffer.wrap(_editKey.getBytes())).b(); | |
130 | 193 ByteBuffer tBuffer2 = ByteBuffer.allocate(16); |
146
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194 tBuffer2.putLong(timestamp); |
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195 _e = _e.getAttributes().put("timestamp",tBuffer2).b(); |
38 | 196 return DefaultEither.newB(_e); |
197 } | |
198 }; | |
199 | |
200 either = editor.edit(root.add(0),e); | |
201 if(either.isA()){ | |
202 throw new IllegalStateException(); | |
203 } | |
146
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204 either.b().success(); |
147
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205 |
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206 /* |
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207 * Record latest renew time |
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208 */ |
146
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209 editor = tree.getLocalTreeEditor(); |
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210 either = editor.putAttribute(root, "renewtime", tBuffer); |
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211 either.b().success(); |
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212 |
38 | 213 } |
214 | |
215 public void createBoardMessage(final String _board,final String _author,final String _message,final String _editKey) | |
216 { | |
143
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217 requestCounter.incrementAndGet(); |
38 | 218 JungleTree tree = jungle.getTreeByName(_board); |
219 if(tree == null){ | |
220 throw new IllegalStateException(); | |
221 } | |
222 | |
46 | 223 Either<Error, JungleTreeEditor> either; |
149
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224 final long timestamp = System.currentTimeMillis(); |
146
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225 final ByteBuffer tBuffer = ByteBuffer.allocate(16); |
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226 tBuffer.putLong(timestamp); |
38 | 227 do{ |
228 Node node = tree.getRootNode(); | |
229 int size = node.getChildren().size(); | |
230 DefaultNodePath path = new DefaultNodePath(); | |
231 | |
65 | 232 JungleTreeEditor editor = tree.getTreeEditor(); |
46 | 233 either = editor.addNewChildAt(path,size); |
38 | 234 if(either.isA()){ |
235 throw new IllegalStateException(); | |
236 } | |
237 editor = either.b(); | |
146
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238 |
38 | 239 NodeEditor e = new NodeEditor(){ |
240 public <T extends EditableNode<T>> Either<Error, T> edit(T _e){ | |
241 _e = _e.getAttributes().put("author",ByteBuffer.wrap(_author.getBytes())).b(); | |
242 _e = _e.getAttributes().put("mes",ByteBuffer.wrap(_message.getBytes())).b(); | |
243 _e = _e.getAttributes().put("key",ByteBuffer.wrap(_editKey.getBytes())).b(); | |
146
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244 _e = _e.getAttributes().put("timestamp",tBuffer).b(); |
38 | 245 return DefaultEither.newB(_e); |
246 } | |
247 }; | |
248 path = path.add(size); | |
249 either = editor.edit(path,e); | |
250 if(either.isA()){ | |
251 throw new IllegalStateException(); | |
252 } | |
253 editor = either.b(); | |
46 | 254 either = editor.success(); |
146
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255 }while(either.isA()); |
93 | 256 |
146
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257 /* |
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258 * Record latest renew time |
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259 */ |
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260 DefaultNodePath root = new DefaultNodePath(); |
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261 do { |
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262 JungleTreeEditor editor = tree.getLocalTreeEditor(); |
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263 either = editor.putAttribute(root, "renewtime", tBuffer); |
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264 either = either.b().success(); |
46 | 265 }while(either.isA()); |
146
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266 |
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267 |
38 | 268 } |
269 | |
270 public void editMessage(String _board,String _uuid,final String _author,final String _message,final String _editKey) | |
271 { | |
143
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272 requestCounter.incrementAndGet(); |
149
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273 final long timestamp = System.currentTimeMillis(); |
146
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274 final ByteBuffer tBuffer = ByteBuffer.allocate(16); |
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275 tBuffer.putLong(timestamp); |
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276 JungleTree tree = jungle.getTreeByName(_board); |
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277 Either<Error, JungleTreeEditor> either = null; |
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278 do { |
38 | 279 DefaultNodePath path = new DefaultNodePath(); |
280 path = path.add(Integer.parseInt(_uuid)); | |
146
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281 |
65 | 282 JungleTreeEditor editor = tree.getTreeEditor(); |
38 | 283 NodeEditor e = new NodeEditor(){ |
284 public <T extends EditableNode<T>> Either<Error, T> edit(T _e){ | |
285 _e = _e.getAttributes().put("author",ByteBuffer.wrap(_author.getBytes())).b(); | |
286 _e = _e.getAttributes().put("mes",ByteBuffer.wrap(_message.getBytes())).b(); | |
287 _e = _e.getAttributes().put("key",ByteBuffer.wrap(_editKey.getBytes())).b(); | |
146
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288 _e = _e.getAttributes().put("timestamp",tBuffer).b(); |
38 | 289 return DefaultEither.newB(_e); |
290 } | |
291 }; | |
146
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292 either = editor.edit(path,e); |
38 | 293 if(either.isA()){ |
294 throw new IllegalStateException(); | |
295 } | |
296 editor = either.b(); | |
46 | 297 either = editor.success(); |
146
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298 }while(either.isA()); |
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299 /* |
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300 * Record latest renew time |
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301 */ |
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302 DefaultNodePath root = new DefaultNodePath(); |
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303 do { |
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304 JungleTreeEditor editor = tree.getLocalTreeEditor(); |
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305 either = editor.putAttribute(root, "renewtime", tBuffer); |
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306 either = either.b().success(); |
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307 }while(either.isA()); |
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308 |
65 | 309 |
38 | 310 } |
311 | |
312 public Iterable<BoardMessage> getMessages(String _boardName) | |
313 { | |
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314 requestCounter.incrementAndGet(); |
38 | 315 JungleTree tree = jungle.getTreeByName(_boardName); |
316 Node node = tree.getRootNode(); | |
317 Children<Node> chs = node.getChildren(); | |
318 final AtomicInteger counter = new AtomicInteger(0); | |
319 IterableConverter.Converter<BoardMessage,Node> converter = new IterableConverter.Converter<BoardMessage,Node>(){ | |
320 public BoardMessage conv(Node _b) { | |
321 String uuid = Integer.toString(counter.get()); | |
322 String author = new String(_b.getAttributes().get("author").array()); | |
323 String message = new String(_b.getAttributes().get("mes").array()); | |
324 counter.incrementAndGet(); | |
325 return new BoardMessageImpl(author,message,uuid); | |
326 } | |
327 }; | |
328 return new IterableConverter<BoardMessage,Node>(chs,converter); | |
329 } | |
330 | |
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331 public int getRequestNum() { |
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332 return requestCounter.get(); |
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333 } |
46 | 334 |
146
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335 |
38 | 336 private static class BoardMessageImpl implements BoardMessage |
337 { | |
338 private final String author; | |
339 private final String message; | |
340 private final String uuid; | |
341 | |
342 public BoardMessageImpl(String _author,String _message,String _uuid) | |
343 { | |
344 author = _author; | |
345 message = _message; | |
346 uuid = _uuid; | |
347 } | |
348 | |
349 public String getAuthor() | |
350 { | |
351 return author; | |
352 } | |
353 | |
354 public String getMessage() | |
355 { | |
356 return message; | |
357 } | |
358 | |
359 public String getUUID() | |
360 { | |
361 return uuid; | |
362 } | |
143
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363 |
38 | 364 } |
124 | 365 |
38 | 366 } |