/**
* @param exclude Versions to exclude form check.
* @return {@code True} if lock is empty.
*/
public boolean isEmpty(GridCacheVersion... exclude) {
if (locs == null && rmts == null) return true;
if (locs != null) {
assert !locs.isEmpty();
if (F.isEmpty(exclude)) return false;
for (GridCacheMvccCandidate cand : locs)
if (!U.containsObjectArray(exclude, cand.version())) return false;
}
if (rmts != null) {
assert !rmts.isEmpty();
if (F.isEmpty(exclude)) return false;
for (GridCacheMvccCandidate cand : rmts)
if (!U.containsObjectArray(exclude, cand.version())) return false;
}
return true;
}
/**
* @param threadId Thread ID to check.
* @param exclude Versions to ignore.
* @return {@code True} if lock is owned by the thread with given ID.
*/
boolean isLocallyOwnedByThread(long threadId, boolean allowDhtLoc, GridCacheVersion... exclude) {
CacheLockCandidates owners = localOwners();
if (owners != null) {
for (int i = 0; i < owners.size(); i++) {
GridCacheMvccCandidate owner = owners.candidate(i);
if (owner.threadId() == threadId
&& owner.nodeId().equals(cctx.nodeId())
&& (allowDhtLoc || !owner.dhtLocal())
&& !U.containsObjectArray(exclude, owner.version())) return true;
}
}
return false;
}
/**
* @param col Collection of candidates.
* @param reentries Reentry flag.
* @param cp Whether to copy or not.
* @param excludeVers Exclude versions.
* @return Collection of candidates minus the exclude versions.
*/
private List<GridCacheMvccCandidate> candidates(
List<GridCacheMvccCandidate> col,
boolean reentries,
boolean cp,
GridCacheVersion... excludeVers) {
if (col == null) return Collections.emptyList();
assert !col.isEmpty();
if (!cp && F.isEmpty(excludeVers)) return col;
List<GridCacheMvccCandidate> cands = new ArrayList<>(col.size());
for (GridCacheMvccCandidate c : col) {
// Don't include reentries.
if ((!c.reentry() || (reentries && c.reentry()))
&& !U.containsObjectArray(excludeVers, c.version())) cands.add(c);
}
return cands;
}
