Mercurial > hg > AnnotationManagerN4J

comparison src/main/java/de/mpiwg/itgroup/annotations/restlet/AnnotatorAnnotationsByResources.java @ 44:5e9d90461929

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rest interface for resources
author dwinter
date Wed, 26 Sep 2012 17:01:59 +0200
parents
children 64aa756c60cc
comparison
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43:d1bef7952bec 44:5e9d90461929
1 package de.mpiwg.itgroup.annotations.restlet;
2
3 import java.util.ArrayList;
4 import java.util.List;
5
6 import org.json.JSONArray;
7 import org.json.JSONException;
8 import org.json.JSONObject;
9 import org.neo4j.graphdb.Node;
10 import org.restlet.data.Form;
11 import org.restlet.data.Parameter;
12 import org.restlet.data.Status;
13 import org.restlet.ext.json.JsonRepresentation;
14 import org.restlet.representation.Representation;
15 import org.restlet.resource.Get;
16 import org.restlet.resource.ServerResource;
17
18 import de.mpiwg.itgroup.annotations.Annotation;
19 import de.mpiwg.itgroup.annotations.NS;
20 import de.mpiwg.itgroup.annotations.Person;
21 import de.mpiwg.itgroup.annotations.Tag;
22 import de.mpiwg.itgroup.annotations.neo4j.AnnotationStore;
23 import de.mpiwg.itgroup.annotations.restlet.utils.JSONObjectComparator;
24
25 /**
26 * API for accessing tags in the Annotation store.
27 *
28 * @author dwinter
29 *
30 */
31 public class AnnotatorAnnotationsByResources extends AnnotatorResourceImpl {
32 protected String getAllowedMethodsForHeader() {
33 return "OPTIONS,GET";
34 }
35
36 @Get("json")
37 public Representation doGetJSON(Representation entity) {
38 logger.debug("AnnotatorAnnotatonsByResource doGetJSON!");
39 setCorsHeaders();
40
41 // do authentication
42 Person authUser = Person.createPersonWithId(this.checkAuthToken(entity));
43 logger.debug("request authenticated=" + authUser);
44
45
46 String jsonId = (String) getRequest().getAttributes().get("id");
47
48 Form form = getRequest().getResourceRef().getQueryAsForm();
49 String sortBy=null;
50 for (Parameter parameter : form) {
51 if (parameter.getName().equals("sortBy")){
52 sortBy = parameter.getValue();
53 }
54 }
55
56 String id = decodeJsonId(jsonId);
57 //String id = jsonId;
58 logger.debug("ressource-id=" + id);
59
60 AnnotationStore store = getAnnotationStore();
61 //String tagUri=NS.MPIWG_TAGS_URL+id;
62 List<Annotation> annotations = store.getAnnotationsByResource(id);
63
64 //JSONArray results = new JSONArray();
65 ArrayList<JSONObject> results = new ArrayList<JSONObject>();
66
67 for (Annotation annot : annotations) {
68 //check permission
69 if (!annot.isActionAllowed("read", authUser, store)) continue;
70
71 JSONObject jo = createAnnotatorJson(annot,false);
72 results.add(jo);
73 }
74
75 if (sortBy!=null){
76 JSONObjectComparator.sortAnnotations(results,sortBy);
77 }
78
79 JSONArray resultsJa = new JSONArray();
80 for (JSONObject result:results){
81 resultsJa.put(result);
82 }
83
84 // assemble result object
85 JSONObject result = new JSONObject();
86 try {
87 result.put("rows", resultsJa);
88 result.put("total", resultsJa.length());
89 } catch (JSONException e) {
90 setStatus(Status.SERVER_ERROR_INTERNAL, "JSON Error");
91 return null;
92 }
93 logger.debug("sending:");
94 logger.debug(result);
95 return new JsonRepresentation(result);
96 }
97
98
99
100 }