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1 package jp.ac.u_ryukyu.ie.cr.shoshi.jungle;
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2
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3 import java.util.Iterator;
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4
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5 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.core.Attributes;
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6 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.core.AttributesContainer;
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7 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.core.Children;
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8 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.core.Node;
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9 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.core.Parent;
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10 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.persistent.ChangeListWriter;
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11 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.ChangeSet;
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12 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.store.impl.DefaultNode;
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13 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.AtomicReservableReference;
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14 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.ClonableDefaultNode;
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15 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.DefaultChangeSet;
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16 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.DefaultJungleTreeEditor;
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17 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.transaction.DefaultTransactionManager;
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18 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.traverser.DefaultTraverser;
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19 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.DefaultEither;
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20 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Either;
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21 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.Error;
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22 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.IterableConverter;
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23 import jp.ac.u_ryukyu.ie.cr.shoshi.jungle.util.IterableConverter.Converter;
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24
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25 public class DefaultJungleTree implements JungleTree
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26 {
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27 private final AtomicReservableReference<DefaultChangeSet> repository;
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28 private final String uuid;
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29 private final ChangeListWriter writer;
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30
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31 public DefaultJungleTree(DefaultChangeSet _set,String _uuid,ChangeListWriter _writer)
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32 {
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33 repository = new AtomicReservableReference<DefaultChangeSet>(_set);
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34 uuid = _uuid;
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35 writer = _writer;
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36 }
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37
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38 @Override
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39 public DefaultJungleTreeEditor getTreeEditor()
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40 {
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41 DefaultChangeSet tip = repository.get();
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42 DefaultTransactionManager txManager = new DefaultTransactionManager(writer,tip,repository,uuid);
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43 DefaultNode root = tip.getRoot();
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44 return new DefaultJungleTreeEditor(root,txManager,new DefaultTraverser());
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45 }
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46
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47 @Override
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48 public Node getRootNode()
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49 {
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50 ChangeSet set = repository.get();
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51 return set.getRoot();
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52 }
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53
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54 public static class NodeWrapper<T extends Parent<T> & AttributesContainer> implements Node
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55 {
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56 private final T wrap;
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57
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58 public NodeWrapper(T _wrap)
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59 {
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60 wrap = _wrap;
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61 }
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62
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63 @Override
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64 public Attributes getAttributes()
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65 {
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66 return wrap.getAttributes();
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67 }
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68
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69 @Override
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70 public Children<Node> getChildren()
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71 {
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72 Children<T> children = wrap.getChildren();
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73 return new ChildrenWrapper<T>(children);
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74 }
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75
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76 public static class ChildrenWrapper<T extends Parent<T> & AttributesContainer> implements Children<Node>
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77 {
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78 private Children<T> wrap;
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79
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80 public ChildrenWrapper(Children<T> _wrap)
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81 {
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82 wrap = _wrap;
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83 }
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84
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85 @Override
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86 public Iterator<Node> iterator()
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87 {
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88 Converter<Node,T> converter = new IterableConverter.Converter<Node,T>(){
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89 @Override
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90 public Node conv(T _b){
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91 return new NodeWrapper<T>(_b);
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92 }
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93 };
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94
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95 IterableConverter<Node,T> iterable = new IterableConverter<Node,T>(wrap,converter);
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96 return iterable.iterator();
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97 }
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98
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99 @Override
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100 public Either<Error,Node> at(int _pos)
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101 {
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102 Either<Error,T> either = wrap.at(_pos);
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103 if(either.isA()){
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104 return DefaultEither.newA(either.a());
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105 }
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106 T node = either.b();
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107 Node wrapper = new NodeWrapper<T>(node);
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108 return DefaultEither.newB(wrapper);
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109 }
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110
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111 @Override
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112 public int size()
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113 {
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114 return wrap.size();
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115 }
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116 }
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117 }
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118 }
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