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 | /* |
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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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28 | import java.util.List; |
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29 | |
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30 | import org.restlet.data.Form; |
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31 | import org.restlet.data.MediaType; |
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32 | import org.restlet.data.Reference; |
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33 | import org.restlet.data.Status; |
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34 | import org.restlet.representation.Representation; |
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35 | import org.restlet.representation.StringRepresentation; |
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36 | import org.restlet.resource.Get; |
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37 | import org.restlet.resource.Post; |
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38 | |
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39 | import de.mpiwg.itgroup.annotations.Person; |
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40 | |
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41 | /** |
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42 | * Resource class for the members of an annotation group. |
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43 | * |
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44 | * @author casties |
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45 | * |
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46 | */ |
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47 | public class GroupMembersResource extends GroupResource { |
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48 | |
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49 | /** |
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50 | * GET with HTML content type. Shows the members of the group. |
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51 | * |
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52 | * @param entity |
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53 | * @return |
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54 | */ |
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55 | @Get("html") |
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56 | public Representation doGetHTML(Representation entity) { |
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57 | // id from URI /annotations/groups/{id}/members |
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58 | if (requestId == null || requestId.isEmpty()) { |
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59 | // invalid id |
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60 | setStatus(Status.CLIENT_ERROR_BAD_REQUEST); |
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61 | return null; |
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62 | } |
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63 | String result = null; |
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64 | Reference thisUrl = this.getReference(); |
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65 | Reference groupsUrl = thisUrl.getParentRef(); |
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66 | result = "<html><body>\n<h1>Group members</h1>\n"; |
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67 | result += String.format("<p>Group: %s <a href=\"%s\">(%s)</a></p>\n", group.getName(), groupsUrl, group.getId()); |
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68 | result += "<p>Members:</p>\n"; |
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69 | result += String.format("<form method=\"post\" action=\"%s\">", thisUrl); |
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70 | result += "<table>"; |
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71 | List<Person> members = store.getMembersOfGroup(group); |
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72 | for (Person p : members) { |
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73 | result += String.format("<tr><td>%s</td><td>(%s)</td>", p.getName(), p.getIdString()); |
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74 | result += String.format("<td><input type=\"submit\" name=\"del_member\" value=\"delete:%s\"></td></tr>\n", p.getIdString()); |
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75 | } |
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76 | result += "</table>\n"; |
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77 | result += "</form>\n"; |
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78 | result += String.format("<form method=\"post\" action=\"%s\">\n", thisUrl); |
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79 | result += "<p>Add new member: <select name=\"add_member\">\n"; |
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80 | for (Person p : store.getPersons("uri", "*")) { |
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81 | result += String.format("<option value=\"%s\">%s</option>\n", p.getIdString(), p.getName()); |
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82 | } |
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83 | result += "</select>\n"; |
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84 | result += "<input type=\"submit\"/>\n"; |
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85 | result += "</form>\n"; |
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86 | result += "</body>\n</html>"; |
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87 | |
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88 | return new StringRepresentation(result, MediaType.TEXT_HTML); |
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89 | } |
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90 | |
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91 | /** |
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92 | * POST adds or deletes members of the Group. |
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93 | * |
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94 | * @return |
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95 | */ |
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96 | @Post |
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97 | public Representation doPost(Representation entity) { |
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98 | logger.fine("GroupMembersResource doPost!"); |
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99 | // TODO: do authentication |
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100 | Form form = new Form(entity); |
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101 | String addMemberId = form.getFirstValue("add_member"); |
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102 | String delMemberId = form.getFirstValue("del_member"); |
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103 | if (group == null || ((addMemberId == null || addMemberId.isEmpty()) |
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104 | && (delMemberId == null || delMemberId.isEmpty()))) { |
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105 | // no id |
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106 | setStatus(Status.CLIENT_ERROR_BAD_REQUEST); |
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107 | return null; |
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108 | } |
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109 | if (addMemberId != null) { |
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110 | logger.fine("adding member: "+addMemberId); |
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111 | Person member = new Person(addMemberId); |
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112 | store.addGroupMember(group, member); |
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113 | } else if (delMemberId != null) { |
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114 | if (delMemberId.startsWith("delete:")) { |
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115 | delMemberId = delMemberId.substring(7); |
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116 | } |
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117 | logger.fine("deleting member: "+delMemberId); |
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118 | Person member = new Person(delMemberId); |
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119 | store.deleteGroupMember(group, member); |
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120 | } |
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121 | // return 303: see other |
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122 | setStatus(Status.REDIRECTION_SEE_OTHER); |
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123 | // go get same URL |
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124 | Reference thisUrl = this.getReference(); |
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125 | this.getResponse().setLocationRef(thisUrl); |
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126 | return null; |
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127 | } |
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128 | |
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129 | } |
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