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1 /**
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2 * ReST API for accessing groups in the Annotation store.
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3 */
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4 package de.mpiwg.itgroup.annotations.restlet;
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5
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70
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6 /*
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7 * #%L
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8 * AnnotationManager
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9 * %%
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10 * Copyright (C) 2012 - 2014 MPIWG Berlin
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11 * %%
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12 * This program is free software: you can redistribute it and/or modify
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13 * it under the terms of the GNU Lesser General Public License as
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14 * published by the Free Software Foundation, either version 3 of the
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15 * License, or (at your option) any later version.
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16 *
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17 * This program is distributed in the hope that it will be useful,
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18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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20 * GNU General Lesser Public License for more details.
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21 *
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22 * You should have received a copy of the GNU General Lesser Public
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23 * License along with this program. If not, see
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24 * <http://www.gnu.org/licenses/lgpl-3.0.html>.
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25 * #L%
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26 */
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27
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15
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28 import java.util.List;
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29
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30 import org.json.JSONArray;
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31 import org.json.JSONException;
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32 import org.json.JSONObject;
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33 import org.neo4j.graphdb.Node;
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34 import org.restlet.data.Form;
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35 import org.restlet.data.Status;
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36 import org.restlet.ext.json.JsonRepresentation;
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37 import org.restlet.representation.Representation;
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38 import org.restlet.resource.Get;
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39
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40 import de.mpiwg.itgroup.annotations.Actor;
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41 import de.mpiwg.itgroup.annotations.Group;
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42 import de.mpiwg.itgroup.annotations.neo4j.AnnotationStore;
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43
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44
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45 /**
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46 * API for accessing groups in the Annotation store.
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47 *
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48 * @author casties
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49 *
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50 */
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51 public class AnnotatorGroups extends AnnotatorResourceImpl {
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52 protected String getAllowedMethodsForHeader() {
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53 return "OPTIONS,GET";
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54 }
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55
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56 /**
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57 * GET with JSON content-type.
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58 * Parameters:
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59 * user: short user name
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60 * uri: user uri
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61 *
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62 * @param entity
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63 * @return
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64 */
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65 @Get("json")
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66 public Representation doGetJSON(Representation entity) {
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67 logger.debug("AnnotatorGroups doGetJSON!");
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68 setCorsHeaders();
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69 Form form = getRequest().getResourceRef().getQueryAsForm();
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70 String user = form.getFirstValue("user");
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71 String uri = form.getFirstValue("uri");
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72 if (uri == null || uri.isEmpty()) {
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73 // get uri from user-id
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74 uri = Actor.getUriFromId(user, false);
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75 }
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76 JSONArray results = new JSONArray();
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77 AnnotationStore store = getAnnotationStore();
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78 Node person = store.getPersonNodeByUri(uri);
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79 if (person != null) {
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80 List<Group> groups = store.getGroupsForPersonNode(person);
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81 for (Group group : groups) {
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82 JSONObject jo = new JSONObject();
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83 try {
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84 jo.put("id", group.getId());
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85 jo.put("name", group.getName());
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86 jo.put("uri", group.getUriString());
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87 } catch (JSONException e) {
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88 }
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89 results.put(jo);
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90 }
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91 }
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92 // assemble result object
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93 JSONObject result = new JSONObject();
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94 try {
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95 result.put("rows", results);
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96 result.put("total", results.length());
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97 } catch (JSONException e) {
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98 setStatus(Status.SERVER_ERROR_INTERNAL, "JSON Error");
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99 return null;
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100 }
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101 logger.debug("sending:");
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102 logger.debug(result);
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103 return new JsonRepresentation(result);
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104
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105 }
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106 }
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