/**
* If merge_id is not equal to this.merge_id then discard. Else cast the view/digest to all
* members of this group.
*/
public void handleMergeView(final MergeData data, final MergeId merge_id) {
if (!matchMergeId(merge_id)) {
if (log.isTraceEnabled())
log.trace(
gms.local_addr
+ ": merge_ids (mine: "
+ this.merge_id
+ ", received: "
+ merge_id
+ ") don't match; merge view "
+ data.view.getViewId()
+ " is discarded");
return;
}
// only send to our *current* members, if we have A and B being merged (we are B), then we would
// *not*
// want to block on a VIEW_ACK from A because A doesn't see us in the pre-merge view yet and
// discards the view
List<Address> newViewMembers = new ArrayList<Address>(data.view.getMembers());
newViewMembers.removeAll(gms.members.getMembers());
try {
gms.castViewChange(data.view, data.digest, null, newViewMembers);
// if we have flush in stack send ack back to merge coordinator
if (gms.flushProtocolInStack) { // [JGRP-700] - FLUSH: flushing should span merge
Message ack =
new Message(data.getSender()).setFlag(Message.Flag.OOB, Message.Flag.INTERNAL);
GMS.GmsHeader ack_hdr = new GMS.GmsHeader(GMS.GmsHeader.INSTALL_MERGE_VIEW_OK);
ack.putHeader(gms.getId(), ack_hdr);
gms.getDownProtocol().down(new Event(Event.MSG, ack));
}
} finally {
cancelMerge(merge_id);
}
}
