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1 using System.Collections;
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2 using System.Collections.Generic;
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3 using System;
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4 using System.Text;
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5 using System.Runtime.Serialization.Formatters.Binary;
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6 using System.IO;
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7
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8 namespace JungleDB {
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9 public class DefaultTreeNodeAttribute : TreeNodeAttributes {
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10 public List<TreeNode> children;
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11 public TreeMap<string, object> attrs;
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12
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13 public DefaultTreeNodeAttribute(List<TreeNode> _children, TreeMap<string, object> _attrs){
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14 children = _children;
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15 attrs = _attrs;
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16 }
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17
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18 public TreeMap<string, object> getAttributesAsRawMap(){
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19 return attrs;
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20 }
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21
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22 public Either<Error, TreeNode> delete(string _key) {
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23 if (_key == null) {
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24 return DefaultEither<Error,TreeNode>.newA (NodeEditorError.NULL_VALUE_NOT_ALLOWED);
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25 }
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26
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27 if (null == attrs.getRoot()) {
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28 return DefaultEither<Error,TreeNode>.newA(NodeEditorError.DELETE_KEY_NOT_FOUND);
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29 }
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30
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31 TreeMap<string, object> newMap = attrs.delete(_key);
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32 TreeNode newNode = new DefaultTreeNode(children, newMap);
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33 return DefaultEither<Error,TreeNode>.newB(newNode);
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34 }
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35
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36 public Either<Error, TreeNode> put(string _key, object _value){
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37 if (_key == null || _value == null) {
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38 return DefaultEither<Error, TreeNode>.newA (NodeEditorError.NULL_VALUE_NOT_ALLOWED);
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39 }
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40
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41 TreeMap<string, object> newMap = attrs.put (_key, _value);
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42
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43 TreeNode newNode = new DefaultTreeNode (children, newMap);
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44
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45 return DefaultEither<Error, TreeNode>.newB (newNode);
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46 }
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47
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48 public object get(string _key) {
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49 if (_key == null)
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50 return null;
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51
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52 object op = attrs.get(_key);
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53 if (op != null)
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54 return op;
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55 return null;
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56 }
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57
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58 public T get<T> (string _key) {
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59 if (_key == null)
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60 return default(T);
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61
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62 T op = (T)attrs.get (_key);
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63 if (op != null)
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64 return op;
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65 return default(T);
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66 }
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67
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68 public string getString(string key) {
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69 return attrs.get(key).ToString();
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70 }
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71
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72 /// <summary>
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73 /// Gets the bytes.
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74 /// need Serializable to class.
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75 /// </summary>
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76 /// <returns>byte[]</returns>
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77 /// <param name="key">Key.</param>
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78 public byte[] getBytes(string key)
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79 {
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80 var formatter = new BinaryFormatter();
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81 object source = attrs.get (key);
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82 using (var stream = new MemoryStream())
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83 {
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84 formatter.Serialize(stream, source);
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85 return stream.ToArray();
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86 }
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87 }
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88
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89 public IEnumerator<string> getKeys(){
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90 return attrs.keys ();
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91 }
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92
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93 }
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94 }
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