1 | /** |
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2 | * |
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3 | */ |
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4 | package de.mpiwg.itgroup.annotations.restlet.annotations_ui; |
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5 | |
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6 | import java.util.List; |
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7 | |
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8 | import org.restlet.data.Form; |
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9 | import org.restlet.data.MediaType; |
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10 | import org.restlet.data.Reference; |
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11 | import org.restlet.data.Status; |
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12 | import org.restlet.representation.Representation; |
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13 | import org.restlet.representation.StringRepresentation; |
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14 | import org.restlet.resource.Get; |
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15 | import org.restlet.resource.Post; |
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16 | |
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17 | import de.mpiwg.itgroup.annotations.Actor; |
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18 | import de.mpiwg.itgroup.annotations.Person; |
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19 | import de.mpiwg.itgroup.annotations.neo4j.AnnotationStore.NodeTypes; |
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20 | |
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21 | /** |
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22 | * Resource class for the members of an annotation group. |
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23 | * |
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24 | * @author casties |
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25 | * |
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26 | */ |
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27 | public class GroupMembersResource extends GroupResource { |
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28 | |
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29 | /** |
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30 | * GET with HTML content type. Shows the members of the group. |
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31 | * |
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32 | * @param entity |
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33 | * @return |
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34 | */ |
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35 | @Get("html") |
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36 | public Representation doGetHTML(Representation entity) { |
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37 | // id from URI /annotations/groups/{id}/members |
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38 | if (requestId == null || requestId.isEmpty()) { |
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39 | // invalid id |
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40 | setStatus(Status.CLIENT_ERROR_BAD_REQUEST); |
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41 | return null; |
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42 | } |
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43 | String result = null; |
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44 | Reference thisUrl = this.getReference(); |
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45 | Reference groupsUrl = thisUrl.getParentRef(); |
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46 | result = "<html><body>\n<h1>Group members</h1>\n"; |
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47 | result += String.format("<p>Group: %s <a href=\"%s\">(%s)</a></p>\n", group.getName(), groupsUrl, group.getId()); |
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48 | result += "<p>Members:</p>\n"; |
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49 | result += "<table>"; |
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50 | result += String.format("<form method=\"post\" action=\"%s\">", thisUrl); |
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51 | List<Person> members = store.getMembersOfGroup(group); |
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52 | for (Person p : members) { |
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53 | result += String.format("<tr><td>%s</td><td>(%s)</td>", p.getName(), p.getIdString()); |
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54 | result += String.format("<td><input type=\"submit\" name=\"del_member\" value=\"delete:%s\"></td></tr>\n", p.getIdString()); |
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55 | } |
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56 | result += "</table>\n"; |
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57 | result += "</form>\n"; |
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58 | result += String.format("<form method=\"post\" action=\"%s\">\n", thisUrl); |
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59 | result += "<p>Add new member: <select name=\"add_member\">\n"; |
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60 | for (Actor p : store.getActors("uri", "*", NodeTypes.PERSON)) { |
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61 | result += String.format("<option value=\"%s\">%s</option>\n", p.getIdString(), p.getName()); |
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62 | } |
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63 | result += "</select>\n"; |
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64 | result += "<input type=\"submit\"/>\n"; |
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65 | result += "</form>\n"; |
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66 | result += "</body>\n</html>"; |
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67 | |
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68 | return new StringRepresentation(result, MediaType.TEXT_HTML); |
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69 | } |
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70 | |
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71 | /** |
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72 | * POST adds or deletes members of the Group. |
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73 | * |
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74 | * @return |
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75 | */ |
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76 | @Post |
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77 | public Representation doPost(Representation entity) { |
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78 | logger.debug("GroupMembersResource doPost!"); |
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79 | // TODO: do authentication |
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80 | Form form = new Form(entity); |
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81 | String addMemberId = form.getFirstValue("add_member"); |
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82 | String delMemberId = form.getFirstValue("del_member"); |
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83 | if (group == null || ((addMemberId == null || addMemberId.isEmpty()) |
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84 | && (delMemberId == null || delMemberId.isEmpty()))) { |
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85 | // no id |
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86 | setStatus(Status.CLIENT_ERROR_BAD_REQUEST); |
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87 | return null; |
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88 | } |
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89 | if (addMemberId != null) { |
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90 | logger.debug("adding member: "+addMemberId); |
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91 | Person member = new Person(addMemberId); |
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92 | store.addGroupMember(group, member); |
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93 | } else if (delMemberId != null) { |
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94 | if (delMemberId.startsWith("delete:")) { |
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95 | delMemberId = delMemberId.substring(7); |
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96 | } |
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97 | logger.debug("deleting member: "+delMemberId); |
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98 | Person member = new Person(delMemberId); |
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99 | store.deleteGroupMember(group, member); |
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100 | } |
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101 | // return 303: see other |
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102 | setStatus(Status.REDIRECTION_SEE_OTHER); |
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103 | // go get same URL |
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104 | Reference thisUrl = this.getReference(); |
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105 | this.getResponse().setLocationRef(thisUrl); |
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106 | return null; |
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107 | } |
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108 | |
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109 | } |
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