/**
* Queue maintenance.
*
* <p>Move projects between {@link #waitingList}, {@link #blockedProjects}, and {@link
* #buildables} appropriately.
*/
public synchronized void maintain() {
if (LOGGER.isLoggable(Level.FINE)) LOGGER.fine("Queue maintenance started " + this);
Iterator<BlockedItem> itr = blockedProjects.values().iterator();
while (itr.hasNext()) {
BlockedItem p = itr.next();
if (!isBuildBlocked(p.task)) {
// ready to be executed
LOGGER.fine(p.task.getFullDisplayName() + " no longer blocked");
itr.remove();
makeBuildable(new BuildableItem(p));
}
}
while (!waitingList.isEmpty()) {
WaitingItem top = peek();
if (!top.timestamp.before(new GregorianCalendar()))
return; // finished moving all ready items from queue
waitingList.remove(top);
Task p = top.task;
if (!isBuildBlocked(p)) {
// ready to be executed immediately
LOGGER.fine(p.getFullDisplayName() + " ready to build");
makeBuildable(new BuildableItem(top));
} else {
// this can't be built now because another build is in progress
// set this project aside.
LOGGER.fine(p.getFullDisplayName() + " is blocked");
blockedProjects.put(p, new BlockedItem(top));
}
}
if (sortingHandler != null) sortingHandler.sortBuildableItems(buildables);
}
