--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main/java/de/mpiwg/itgroup/annotations/restlet/AnnotatorGroups.java	Tue Aug 28 20:23:12 2012 +0200
@@ -0,0 +1,84 @@
+/**
+ * ReST API for accessing groups in the Annotation store.
+ */
+package de.mpiwg.itgroup.annotations.restlet;
+
+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.Form;
+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.Actor;
+import de.mpiwg.itgroup.annotations.Group;
+import de.mpiwg.itgroup.annotations.neo4j.AnnotationStore;
+
+
+/**
+ * API for accessing groups in the Annotation store.
+ * 
+ * @author casties
+ *
+ */
+public class AnnotatorGroups extends AnnotatorResourceImpl {
+    protected String getAllowedMethodsForHeader() {
+        return "OPTIONS,GET";
+    }
+
+    /**
+     * GET with JSON content-type.
+     * Parameters: 
+     *   user: short user name
+     *   uri: user uri
+     *   
+     * @param entity
+     * @return
+     */
+    @Get("json")
+    public Representation doGetJSON(Representation entity) {
+        logger.debug("AnnotatorGroups doGetJSON!");
+        setCorsHeaders();
+        Form form = getRequest().getResourceRef().getQueryAsForm();
+        String user = form.getFirstValue("user");
+        String uri = form.getFirstValue("uri");
+        if (uri == null || uri.isEmpty()) {
+            // get uri from user-id
+            uri = Actor.getUriFromId(user, false);
+        }
+        JSONArray results = new JSONArray();
+        AnnotationStore store = getAnnotationStore();
+        Node person = store.getPersonNodeByUri(uri);
+        if (person != null) {
+            List<Group> groups = store.getGroupsForPersonNode(person);
+            for (Group group : groups) {
+                JSONObject jo = new JSONObject();
+                try {
+                    jo.put("id", group.getId());
+                    jo.put("name", group.getName());
+                    jo.put("uri", group.getUriString());
+                } 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.debug("sending:");
+        logger.debug(result);
+        return new JsonRepresentation(result);
+
+    }
+}