OF-616: Group names are cached in two manners: one time in a collection that...

OF-616: Group names are cached in two manners: one time in a collection that contains all group names, but also for paginated requests. Upon changing the cache, those paginated cached collections should also be tossed.

git-svn-id: http://svn.igniterealtime.org/svn/repos/openfire/trunk@13493 b35dd754-fafc-0310-a699-88a17e54d16e

src/java/org/jivesoftware/openfire/group/GroupManager.java

@@ -22,6 +22,7 @@ package org.jivesoftware.openfire.group;
 
 import java.util.Collection;
 import java.util.Collections;
+import java.util.Iterator;
 import java.util.Map;
 
 import org.jivesoftware.openfire.XMPPServer;
@@ -105,6 +106,9 @@ public class GroupManager {
 
                 // Evict cached information for affected users
                 evictCachedUsersForGroup(group);
+
+                // Evict cached paginated group names
+                evictCachedPaginatedGroupNames();
             }
 
             public void groupDeleting(Group group, Map params) {
@@ -642,4 +646,13 @@ public class GroupManager {
         	groupMetaCache.remove(user.getNode());
         }
     }
+
+    private void evictCachedPaginatedGroupNames() {
+        for(Map.Entry<String, Object> entry : groupMetaCache.entrySet())
+        {
+            if (entry.getKey().startsWith(GROUP_NAMES_KEY)) {
+                groupMetaCache.remove(entry.getKey());
+            }
+        }
+    }
 }
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