Changeset 22:b1fb0d117877 in AnnotationManagerN4J for src/main/java/de/mpiwg/itgroup/annotations/neo4j/AnnotationStore.java

Timestamp:

Sep 20, 2012, 3:42:26 PM (12 years ago)

Author:

casties

Branch:

default

Message:

adding and listing groups via html works now.
no editing of group membership yet.
no authentication yet.

File:

• src/main/java/de/mpiwg/itgroup/annotations/neo4j/AnnotationStore.java (modified) (2 diffs)

src/main/java/de/mpiwg/itgroup/annotations/neo4j/AnnotationStore.java

@@ -140 +140 @@
     }
 
+    /**
+     * Returns the members of the group.
+     * 
+     * @param group
+     * @return
+     */
+    public List<Person> getMembersOfGroup(Group group) {
+        ArrayList<Person> members = new ArrayList<Person>();
+        Node gn = getActorNode(group);
+        Iterable<Relationship> rels = gn.getRelationships(RelationTypes.MEMBER_OF);
+        for (Relationship rel : rels) {
+            Node memberNode = rel.getStartNode();
+            Actor member = createActorFromNode(memberNode);
+            // make sure we're getting a group
+            if (!(member instanceof Person)) {
+                logger.error("source of MEMBER_OF is not PERSON! rel=" + rel);
+                continue;
+            }
+            members.add((Person) member);
+        }
+        return members;
+    }
+    
+    /**
+     * Returns the stored Actor matching the given one.
+     * 
+     * @param actor
+     * @return
+     */
+    public Actor getActor(Actor actor) {
+        Node actorNode = getActorNode(actor);
+        Actor storedActor = createActorFromNode(actorNode);
+        return storedActor;
+    }
+    
+    /**
+     * Stores an Actor (Person or Group). Creates a new actor Node or returns an existing one.
+     * 
+     * @param actor
+     * @return
+     */
+    public Actor storeActor(Actor actor) {
+        Node actorNode = getOrCreateActorNode(actor);
+        Actor storedActor = createActorFromNode(actorNode);
+        return storedActor;
+    }
+    
     /**
      * Returns the Annotation with the given id.
@@ -536 +583 @@
     }
 
+    protected Node getActorNode(Actor actor) {
+        // Person/Group is identified by URI or id
+        String uri = actor.getUriString();
+        Index<Node> idx;
+        if (actor.isGroup()) {
+            idx = getNodeIndex(NodeTypes.GROUP);
+        } else {
+            idx = getNodeIndex(NodeTypes.PERSON);
+        }
+        IndexHits<Node> persons = idx.get("uri", uri);
+        Node person = persons.getSingle();
+        return person;
+    }
+    
     protected Node getOrCreateActorNode(Actor actor) {
         // Person/Group is identified by URI or id