/**
* @param views Guaranteed to be non-null and to have >= 2 members, or else this thread would
* not be started
*/
public synchronized void start(Map<Address, View> views) {
if (thread == null || thread.isAlive()) {
this.coords.clear();
// now remove all members which don't have us in their view, so RPCs won't block (e.g.
// FLUSH)
// https://jira.jboss.org/browse/JGRP-1061
sanitizeViews(views);
// Add all different coordinators of the views into the hashmap and sets their members:
Collection<Address> coordinators = Util.determineMergeCoords(views);
for (Address coord : coordinators) {
View view = views.get(coord);
if (view != null) this.coords.put(coord, new ArrayList<Address>(view.getMembers()));
}
// For the merge participants which are not coordinator, we simply add them, and the
// associated
// membership list consists only of themselves
Collection<Address> merge_participants = Util.determineMergeParticipants(views);
merge_participants.removeAll(coordinators);
for (Address merge_participant : merge_participants) {
Collection<Address> tmp = new ArrayList<Address>();
tmp.add(merge_participant);
coords.putIfAbsent(merge_participant, tmp);
}
thread = gms.getThreadFactory().newThread(this, "MergeTask");
thread.setDaemon(true);
thread.start();
}
}
@SuppressWarnings("unchecked")
private static void check(final int num_expected_msgs, Collection<Integer>... lists) {
for (Collection<Integer> list : lists) {
System.out.println("list: " + list);
}
for (Collection<Integer> list : lists) {
Collection<Integer> missing = new TreeSet<Integer>();
if (list.size() != num_expected_msgs) {
for (int i = 0; i < num_expected_msgs; i++) missing.add(i);
missing.removeAll(list);
assert list.size() == num_expected_msgs
: "expected "
+ num_expected_msgs
+ " elements, but got "
+ list.size()
+ " (list="
+ list
+ "), missing="
+ missing;
}
}
}
public void receive(Message msg) {
Integer val = (Integer) msg.getObject();
msgs.add(val);
}
public void receive(Message msg) {
Integer val = (Integer) msg.getObject();
System.out.println(name + ": <-- " + val);
msgs.add(val);
}
