Mercurial > hg > AnnotationManagerN4J
view src/main/java/de/mpiwg/itgroup/annotations/restlet/AnnotatorTags.java @ 91:cf44d9e1a4a7
let CORS be handled by Restlet 2.3 CorsFilter.
author | casties |
---|---|
date | Sun, 08 Feb 2015 18:09:00 +0100 |
parents | 25eb2e1df106 |
children |
line wrap: on
line source
package de.mpiwg.itgroup.annotations.restlet; /* * #%L * AnnotationManager * %% * Copyright (C) 2012 - 2014 MPIWG Berlin * %% * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Lesser Public License for more details. * * You should have received a copy of the GNU General Lesser Public * License along with this program. If not, see * <http://www.gnu.org/licenses/lgpl-3.0.html>. * #L% */ import java.io.UnsupportedEncodingException; import java.net.URLDecoder; import java.util.List; import org.json.JSONArray; import org.json.JSONException; import org.json.JSONObject; import org.neo4j.graphdb.Node; import org.restlet.data.Status; import org.restlet.ext.json.JsonRepresentation; import org.restlet.representation.Representation; import org.restlet.resource.Get; import de.mpiwg.itgroup.annotations.Tag; import de.mpiwg.itgroup.annotations.neo4j.AnnotationStore; /** * API for accessing tags in the Annotation store. * * @author dwinter * */ public class AnnotatorTags extends AnnotatorResourceImpl { /** * GET with JSON content-type. * Parameters: * user: short user name * uri: user uri * * @param entity * @return */ @Get("json") public Representation doGetJSON(Representation entity) { logger.fine("AnnotatorGroups doGetJSON!"); String jsonId = (String) getRequest().getAttributes().get("id"); // String id = decodeJsonId(jsonId); String id = jsonId; logger.fine("annotation-id=" + id); if (id == null) { return getAllTags(); } else { // URL decode try { id = URLDecoder.decode(id, "UTF-8"); } catch (UnsupportedEncodingException e) { // this shouldn't happen } return getTag(id); } } protected Representation getTag(String id) { AnnotationStore store = getAnnotationStore(); String tagUri = BaseRestlet.TAGS_URI_PREFIX + id; Node tagNode = store.getTagNodeByUri(tagUri); Tag tag = store.createTagFromNode(tagNode); JSONObject jo = new JSONObject(); try { jo.put("id", tag.getId()); jo.put("name", tag.getName()); jo.put("uri", tag.getUri()); } catch (JSONException e) { } return new JsonRepresentation(jo); } protected Representation getAllTags() { JSONArray results = new JSONArray(); AnnotationStore store = getAnnotationStore(); List<Tag> tags = store.getTags(null, null); for (Tag tag : tags) { JSONObject jo = new JSONObject(); try { jo.put("id", tag.getId()); jo.put("name", tag.getName()); jo.put("uri", tag.getUri()); } catch (JSONException e) { } results.put(jo); } // assemble result object JSONObject result = new JSONObject(); try { result.put("rows", results); result.put("total", results.length()); } catch (JSONException e) { setStatus(Status.SERVER_ERROR_INTERNAL, "JSON Error"); return null; } logger.fine("sending:"); logger.fine(result.toString()); return new JsonRepresentation(result); } }