/**
* @param mapping Mappings.
* @param key Key to map.
* @param topVer Topology version.
* @return Near lock mapping.
* @throws GridException If mapping for key failed.
*/
private GridNearLockMapping<K, V> map(
K key, @Nullable GridNearLockMapping<K, V> mapping, long topVer) throws GridException {
assert mapping == null || mapping.node() != null;
GridNode primary = cctx.affinity().primary(key, topVer);
if (cctx.discovery().node(primary.id()) == null)
// If primary node left the grid before lock acquisition, fail the whole future.
throw newTopologyException(null, primary.id());
if (inTx() && tx.groupLock() && !primary.isLocal())
throw new GridException(
"Failed to start group lock transaction (local node is not primary for "
+ " key) [key="
+ key
+ ", primaryNodeId="
+ primary.id()
+ ']');
if (mapping == null || !primary.id().equals(mapping.node().id()))
mapping = new GridNearLockMapping<>(primary, key);
else mapping.addKey(key);
return mapping;
}
