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1 package controllers;
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2
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3 import org.codehaus.jackson.JsonNode;
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4 import org.codehaus.jackson.node.ObjectNode;
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5
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6 import models.ClaimModel;
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7 import models.NodeModel;
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8 import models.TPGraph;
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9
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10 import com.tinkerpop.blueprints.Graph;
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11 import com.tinkerpop.blueprints.Vertex;
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12
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13 import play.libs.Json;
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14 import play.mvc.BodyParser;
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15 import play.mvc.Controller;
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16 import play.mvc.Result;
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11
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17
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18 public class Claim extends Controller {
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19
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20 @BodyParser.Of(BodyParser.Json.class)
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21 public static Result crateClaim() {
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22 JsonNode json = request().body().asJson();
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23 String author = json.findPath(NodeModel.L_AUTHOR).getTextValue(); // Author
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24 TPGraph tpGraph = TPGraph.getInstance();
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25 Graph graph = tpGraph.getGraph();
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26 if ( graph.getVertex(author) == null) {
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27 return badRequest("Author "+ author + "is not exist.");
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28 }
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29 JsonNode toulmin = json.findPath(NodeModel.TOULMIN);
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30 if (toulmin.findPath(NodeModel.TITLE) == null) {
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31 return badRequest("Please set title");
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32 }
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33 JsonNode usersJson = json.get(NodeModel.USERS); // Users (class JsonNode)
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34 if (usersJson == null) {
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35 return badRequest("Please set users");
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36 }
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37 String type = json.findPath(NodeModel.TYPE).getTextValue(); // Type (majority|unanimously)
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38 ClaimModel newClaim = new ClaimModel(graph.addVertex(null));
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39 tpGraph.setLabelToAuthor(newClaim, author);
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40 newClaim.setClaimProperties(toulmin, type);
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41 String[] users = toStringArray(usersJson);
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42 tpGraph.setLabelStatusToUsers(newClaim, users, NodeModel.L_REQUEST, NodeModel.UNKNOWN);
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43 tpGraph.setLabelToRootClaim(newClaim);
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44 return created();
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45 }
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46
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47 @BodyParser.Of(BodyParser.Json.class)
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48 public static Result editClaim(String id) {
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49 JsonNode json = request().body().asJson();
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50 String author = json.findPath(NodeModel.L_AUTHOR).getTextValue(); // Author
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51 TPGraph tpGraph = TPGraph.getInstance();
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52 Graph graph = tpGraph.getGraph();
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53 ClaimModel claim = new ClaimModel(graph.getVertex(id));
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54 if ( claim.getVertex() == null ) {
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55 return badRequest("Claim id "+ id + "does not exist.");
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56 }
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57 if ( !claim.getAuthorId().equals(author)) {
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58 return badRequest("Wrong Author.");
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59 }
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60 if ( graph.getVertex(author) == null) {
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61 return badRequest("Author "+ author + "is not exist.");
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62 }
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63 JsonNode toulmin = json.findPath(NodeModel.TOULMIN);
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64 if (toulmin.findPath(NodeModel.TITLE) == null) {
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65 return badRequest("Please set title");
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66 }
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67 JsonNode usersJson = json.get(NodeModel.USERS);
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68 if (usersJson == null) {
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69 return badRequest("Please set users");
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70 }
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71 String type = json.findPath(NodeModel.TYPE).getTextValue(); // Type (majority|unanimously)
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72 claim.setClaimProperties(toulmin, type);
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73 Object[] users = toStringObject(usersJson);
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74 claim.editRequestsEdgeUsers(users);
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75 tpGraph.setLabelToRootClaim(claim);
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76 return created();
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77 }
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79
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80 @BodyParser.Of(BodyParser.Json.class)
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81 public static Result createMention(String mentionType, String id) {
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82 if ( !(mentionType.equals(NodeModel.L_QUESTION)
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83 ||mentionType.equals(NodeModel.L_REFUTATION)
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84 ||mentionType.equals(NodeModel.L_SUGGESTION))) {
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85 return badRequest("Wrong mention type.");
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86 }
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87 JsonNode json = request().body().asJson();
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88 String author = json.findPath(NodeModel.L_AUTHOR).getTextValue(); // Author
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89 TPGraph tpGraph = TPGraph.getInstance();
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90 Graph graph = tpGraph.getGraph();
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91 if ( graph.getVertex(author) == null) {
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92 return badRequest("Author "+ author + "is not exist.");
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93 }
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94 JsonNode toulmin = json.findPath(NodeModel.TOULMIN);
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95 if (toulmin.findPath(NodeModel.TITLE) == null) {
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96 return badRequest("Please set title");
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97 }
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98 JsonNode usersJson = json.get(NodeModel.USERS); // Users (class JsonNode)
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99 if (usersJson == null) {
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100 return badRequest("Please set users");
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101 }
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102 String type = json.findPath(NodeModel.TYPE).getTextValue(); // Type (majority|unanimously)
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103 ClaimModel newClaim = new ClaimModel(graph.addVertex(null));
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104 tpGraph.setLabelToAuthor(newClaim, author);
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105 newClaim.setClaimProperties(toulmin, type);
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106 String[] users = toStringArray(usersJson);
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107 tpGraph.setLabelStatusToUsers(newClaim, users, NodeModel.L_REQUEST, NodeModel.UNKNOWN);
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108 tpGraph.setLabelToRootClaim(newClaim);
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109 ClaimModel mentionV = new ClaimModel(graph.getVertex(id));
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110 tpGraph.setLabelMention(mentionV, newClaim, mentionType);
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111 return created();
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112 }
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113
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114 public static Result getClaimInfo(String id) {
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115 TPGraph tpGraph = TPGraph.getInstance();
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116 Graph graph = tpGraph.getGraph();
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117 Vertex claimV = graph.getVertex(id);
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118 if (claimV == null) {
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119 badRequest("Claim id "+id+" is not found.");
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120 }
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121 ClaimModel claim = new ClaimModel(claimV);
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122 ObjectNode claimInfo = claim.getSimpleClaimInfo();
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123 ObjectNode result = Json.newObject();
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124 result.put("message", claimInfo);
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125 return ok(result);
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126 }
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127
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128 public static Result getClaimTree(String id) {
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129 TPGraph tpGraph = TPGraph.getInstance();
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130 Graph graph = tpGraph.getGraph();
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131 Vertex v = graph.getVertex(id);
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132 if (v == null) {
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133 return badRequest("Consensus id "+ id +" is not found.");
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134 }
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135 ClaimModel consensusRoot = new ClaimModel(v);
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136 ObjectNode resultEntity = consensusRoot.getClaimInfoTraverse();
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137 return ok(resultEntity);
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138 }
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139
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140 private static Object[] toStringObject(JsonNode jsonNode) {
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141 if (jsonNode == null) {
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142 return null;
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143 }
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144 int length = jsonNode.size();
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145 if (length == 0) {
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146 return null;
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147 }
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148 Object[] userArray = new Object[length];
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149 for (int i=0; i<length; i++ ) {
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150 userArray[i] = jsonNode.get(i).getTextValue();
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151 }
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152 return userArray;
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153 }
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154
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155 private static String[] toStringArray(JsonNode jsonNode) {
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156 if (jsonNode == null) {
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157 return null;
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158 }
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159 int length = jsonNode.size();
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160 if (length == 0) {
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161 return null;
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162 }
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163 String[] userArray = new String[length];
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164 for (int i=0; i<length; i++ ) {
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165 userArray[i] = jsonNode.get(i).getTextValue();
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166 }
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167 return userArray;
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168 }
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172
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173 }
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