| 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.apache.log4j.Logger; |
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| 9 | import org.restlet.data.Form; |
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| 10 | import org.restlet.data.MediaType; |
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| 11 | import org.restlet.data.Reference; |
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| 12 | import org.restlet.data.Status; |
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| 13 | import org.restlet.representation.Representation; |
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| 14 | import org.restlet.representation.StringRepresentation; |
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| 15 | import org.restlet.resource.Get; |
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| 16 | import org.restlet.resource.Post; |
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| 17 | import org.restlet.resource.ServerResource; |
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| 18 | |
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| 19 | import de.mpiwg.itgroup.annotations.Actor; |
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| 20 | import de.mpiwg.itgroup.annotations.Group; |
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| 21 | import de.mpiwg.itgroup.annotations.neo4j.AnnotationStore; |
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| 22 | import de.mpiwg.itgroup.annotations.restlet.BaseRestlet; |
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| 23 | |
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| 24 | /** |
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| 25 | * Resource class for the list of annotation groups. |
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| 26 | * |
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| 27 | * @author casties |
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| 28 | * |
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| 29 | */ |
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| 30 | public class GroupsResource extends ServerResource { |
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| 31 | |
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| 32 | public static Logger logger = Logger.getLogger(GroupsResource.class); |
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| 33 | |
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| 34 | private AnnotationStore store; |
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| 35 | |
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| 36 | /** |
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| 37 | * GET with HTML content type. Lists all groups. |
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| 38 | * |
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| 39 | * @param entity |
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| 40 | * @return |
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| 41 | */ |
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| 42 | @Get("html") |
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| 43 | public Representation doGetHTML(Representation entity) { |
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| 44 | String result = null; |
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| 45 | store = getAnnotationStore(); |
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| 46 | // list all groups |
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| 47 | result = "<html><body>\n<h1>Groups</h1>\n<table>"; |
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| 48 | result += "<tr><th>id</th><th>name</th><th>uri</th></tr>"; |
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| 49 | List<Group> groups = store.getGroups("uri", "*"); |
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| 50 | for (Group group : groups) { |
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| 51 | Reference groupUrl = this.getReference(); |
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| 52 | groupUrl.addSegment(group.getId()); |
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| 53 | result += String.format("<tr><td><a href=\"%s\">%s</a></td><td>%s</td><td>%s</td></tr>\n", groupUrl, group.getId(), |
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| 54 | group.getName(), group.getUri()); |
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| 55 | } |
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| 56 | result += "</table>\n</body>\n</html>"; |
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| 57 | logger.debug("sending:"); |
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| 58 | logger.debug(result); |
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| 59 | return new StringRepresentation(result, MediaType.TEXT_HTML); |
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| 60 | } |
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| 61 | |
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| 62 | /** |
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| 63 | * POST creates a new Group. |
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| 64 | * |
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| 65 | * @return |
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| 66 | */ |
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| 67 | @Post |
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| 68 | public Representation doPost(Representation entity) { |
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| 69 | logger.debug("AnnotationsUiGroups doPost!"); |
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| 70 | // TODO: do authentication |
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| 71 | Form form = new Form(entity); |
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| 72 | String id = form.getFirstValue("id"); |
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| 73 | String name = form.getFirstValue("name"); |
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| 74 | if (id == null || id.isEmpty()) { |
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| 75 | // invalid id |
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| 76 | setStatus(Status.CLIENT_ERROR_BAD_REQUEST); |
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| 77 | return null; |
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| 78 | } |
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| 79 | String gid = makeGroupId(id); |
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| 80 | Group newGroup = new Group(gid, null, name); |
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| 81 | store = getAnnotationStore(); |
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| 82 | Actor storedGroup = store.storeActor(newGroup); |
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| 83 | gid = storedGroup.getId(); |
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| 84 | // return 303: see other |
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| 85 | setStatus(Status.REDIRECTION_SEE_OTHER); |
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| 86 | // go GET URL for this group |
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| 87 | Reference groupUrl = this.getReference(); |
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| 88 | groupUrl.addSegment(gid); |
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| 89 | this.getResponse().setLocationRef(groupUrl); |
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| 90 | return null; |
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| 91 | } |
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| 92 | |
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| 93 | /** |
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| 94 | * Returns a group id based on the given id. |
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| 95 | * |
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| 96 | * @param id |
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| 97 | * @return |
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| 98 | */ |
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| 99 | protected String makeGroupId(String id) { |
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| 100 | // TODO: should we use different ids? |
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| 101 | id = id.replaceAll("\\W", "_"); |
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| 102 | id = id.toLowerCase(); |
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| 103 | return id; |
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| 104 | } |
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| 105 | |
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| 106 | protected AnnotationStore getAnnotationStore() { |
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| 107 | if (store == null) { |
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| 108 | store = ((BaseRestlet) getApplication()).getAnnotationStore(); |
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| 109 | } |
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| 110 | return store; |
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| 111 | } |
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| 112 | } |
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