/**
* Method that skips invocation if: - The store is a shared one and node storing the key is not
* the 1st owner of the key or, - This is an L1 put operation.
*/
@Override
protected boolean skipKey(Object key) {
if (loaderConfig.shared()) {
if (!dm.getPrimaryLocation(key).equals(address)) {
log.trace(
"Skipping cache store since the cache loader is shared "
+ "and the caller is not the first owner of the key");
return true;
}
} else {
List<Address> addresses = dm.locate(key);
if (isL1Put(addresses)) {
log.trace("Skipping cache store since this is an L1 put");
return true;
}
}
return false;
}
/**
* This method retrieves an entry from a remote cache and optionally stores it in L1 (if L1 is
* enabled).
*
* <p>This method only works if a) this is a locally originating invocation and b) the entry in
* question is not local to the current cache instance and c) the entry is not in L1. If either of
* a, b or c does not hold true, this method returns a null and doesn't do anything.
*
* @param ctx invocation context
* @param key key to retrieve
* @return value of a remote get, or null
* @throws Throwable if there are problems
*/
private Object remoteGetAndStoreInL1(InvocationContext ctx, Object key, boolean isWrite)
throws Throwable {
DataLocality locality = dm.getLocality(key);
if (ctx.isOriginLocal() && !locality.isLocal() && isNotInL1(key)) {
return realRemoteGet(ctx, key, true, isWrite);
} else {
// maybe we are still rehashing as a joiner? ISPN-258
if (locality.isUncertain()) {
if (trace)
log.tracef(
"Key %s is mapped to local node %s, but a rehash is in progress so may need to look elsewhere",
key, rpcManager.getAddress());
// try a remote lookup all the same
return realRemoteGet(ctx, key, false, isWrite);
} else {
if (trace)
log.tracef(
"Not doing a remote get for key %s since entry is mapped to current node (%s), or is in L1. Owners are %s",
key, rpcManager.getAddress(), dm.locate(key));
}
}
return null;
}
private static boolean isOwner(Cache<?, ?> cache, Object key) {
DistributionManager dm = cache.getAdvancedCache().getDistributionManager();
return dm == null || dm.locate(key).contains(addressOf(cache));
}
@Override
public List<Address> getOwners(Object key) {
return Immutables.immutableListConvert(dm.locate(key));
}