@Override
public Object perform(InvocationContext ctx) throws Throwable {
// Can't return a lazy stream here because the current code in
// EntryWrappingInterceptor expects any changes to be done eagerly,
// otherwise they're not applied. So, apply the function eagerly and
// return a lazy stream of the void returns.
List<R> returns = new ArrayList<>(remoteReturns);
entries.forEach(
(k, v) -> {
CacheEntry<K, V> entry = ctx.lookupEntry(k);
// Could be that the key is not local, 'null' is how this is signalled
if (entry != null) {
R r = f.apply(v, EntryViews.readWrite(entry));
returns.add(snapshot(r));
}
});
return returns;
}
protected void notifyCommitEntry(
boolean created,
boolean removed,
boolean expired,
CacheEntry entry,
InvocationContext ctx,
FlagAffectedCommand command,
Object previousValue,
Metadata previousMetadata) {
boolean isWriteOnly =
(command instanceof WriteCommand) && ((WriteCommand) command).isWriteOnly();
if (removed) {
if (command instanceof RemoveCommand) {
((RemoveCommand) command).notify(ctx, previousValue, previousMetadata, false);
} else {
if (expired) {
notifier.notifyCacheEntryExpired(entry.getKey(), previousValue, previousMetadata, ctx);
} else {
notifier.notifyCacheEntryRemoved(
entry.getKey(), previousValue, previousMetadata, false, ctx, command);
}
// A write-only command only writes and so can't 100% guarantee
// to be able to retrieve previous value when removed, so only
// send remove event when the command is read-write.
if (!isWriteOnly)
functionalNotifier.notifyOnRemove(
EntryViews.readOnly(entry.getKey(), previousValue, previousMetadata));
functionalNotifier.notifyOnWrite(() -> EntryViews.noValue(entry.getKey()));
}
} else {
// Notify entry event after container has been updated
if (created) {
notifier.notifyCacheEntryCreated(
entry.getKey(), entry.getValue(), entry.getMetadata(), false, ctx, command);
// A write-only command only writes and so can't 100% guarantee
// that an entry has been created, so only send create event
// when the command is read-write.
if (!isWriteOnly) functionalNotifier.notifyOnCreate(EntryViews.readOnly(entry));
functionalNotifier.notifyOnWrite(() -> EntryViews.readOnly(entry));
} else {
notifier.notifyCacheEntryModified(
entry.getKey(),
entry.getValue(),
entry.getMetadata(),
previousValue,
previousMetadata,
false,
ctx,
command);
// A write-only command only writes and so can't 100% guarantee
// that an entry has been created, so only send modify when the
// command is read-write.
if (!isWriteOnly)
functionalNotifier.notifyOnModify(
EntryViews.readOnly(entry.getKey(), previousValue, previousMetadata),
EntryViews.readOnly(entry));
functionalNotifier.notifyOnWrite(() -> EntryViews.readOnly(entry));
}
}
}