Hi,
I wrote a workaround in the form of a TreeCacheListenener. Please let me know
what you think about.
| class Listener implements TreeCacheListener
| {
| private TreeCache cache;
| private View view;
|
| private static final Fqn backupFqn = new
Fqn(BuddyManager.BUDDY_BACKUP_SUBTREE);
| private static final Option option = new Option();
|
| static
| {
| option.setForceDataGravitation(true);
| }
|
| private Vector getMembersLeft(View old_view, View new_view)
| {
| final Vector result = new Vector();
| final Vector members = old_view.getMembers();
| final Vector new_members = new_view.getMembers();
|
| for(int i=0; i < members.size(); i++)
| {
| final Object mbr = members.elementAt(i);
|
| if(!new_members.contains(mbr))
| {
| result.addElement(mbr);
| }
| }
|
| return(result);
| }
|
| private void check(Vector membersLeft)
| {
| for(int i=0, n=membersLeft.size(); i<n ; i++)
| {
| final Address addr = (Address)membersLeft.get(i);
| final Fqn fqn = new Fqn(backupFqn,
| new
Fqn(BuddyManager.getGroupNameFromAddress(addr)));
|
| if(cache.exists(fqn))
| {
| try
| {
| final Set children =
cache.getChildrenNames(fqn);
|
| for(final Iterator
it=children.iterator() ; it.hasNext() ;)
| {
| cache.get(new
Fqn((String)it.next()), option);
| }
| }
| catch(CacheException ex)
| {
| ex.printStackTrace();
| }
| }
| }
| }
|
|
| public void cacheStarted(TreeCache cache)
| {
| this.cache = cache;
| this.view = new View(new ViewId(cache.getCoordinator()),
cache.getMembers());
| }
|
| public void cacheStopped(TreeCache cache) {}
| public void nodeCreated(Fqn fqn) {}
| public void nodeEvicted(Fqn fqn) {}
| public void nodeLoaded(Fqn fqn) {}
| public void nodeModified(Fqn fqn) {}
| public void nodeRemoved(Fqn fqn) {}
| public void nodeVisited(Fqn fqn) {}
|
| public void viewChange(View new_view)
| {
| if(view!=null)
| {
| final Vector membersLeft = getMembersLeft(view,
new_view);
|
| if(!membersLeft.isEmpty())
| {
| check(membersLeft);
| }
| }
|
| view = new_view;
| }
| }
|
|
thanks and regards
gianluca
--
Gianluca Puggelli
skype:pugg1138
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