/** Initializes future. */
@SuppressWarnings({"unchecked"})
void finish() {
if (mappings != null) {
finish(mappings.values());
markInitialized();
if (!isSync()) {
boolean complete = true;
for (GridFuture<?> f : pending())
// Mini-future in non-sync mode gets done when message gets sent.
if (isMini(f) && !f.isDone()) complete = false;
if (complete) onComplete();
}
} else {
assert !commit;
try {
tx.rollback();
} catch (GridException e) {
U.error(log, "Failed to rollback empty transaction: " + tx, e);
}
markInitialized();
}
}
/**
* Performs flush.
*
* @throws GridException If failed.
*/
private void doFlush() throws GridException {
lastFlushTime = U.currentTimeMillis();
List<GridFuture> activeFuts0 = null;
int doneCnt = 0;
for (GridFuture<?> f : activeFuts) {
if (!f.isDone()) {
if (activeFuts0 == null) activeFuts0 = new ArrayList<>((int) (activeFuts.size() * 1.2));
activeFuts0.add(f);
} else {
f.get();
doneCnt++;
}
}
if (activeFuts0 == null || activeFuts0.isEmpty()) return;
while (true) {
Queue<GridFuture<?>> q = null;
for (Buffer buf : bufMappings.values()) {
GridFuture<?> flushFut = buf.flush();
if (flushFut != null) {
if (q == null) q = new ArrayDeque<>(bufMappings.size() * 2);
q.add(flushFut);
}
}
if (q != null) {
assert !q.isEmpty();
boolean err = false;
for (GridFuture fut = q.poll(); fut != null; fut = q.poll()) {
try {
fut.get();
} catch (GridException e) {
if (log.isDebugEnabled()) log.debug("Failed to flush buffer: " + e);
err = true;
}
}
if (err)
// Remaps needed - flush buffers.
continue;
}
doneCnt = 0;
for (int i = 0; i < activeFuts0.size(); i++) {
GridFuture f = activeFuts0.get(i);
if (f == null) doneCnt++;
else if (f.isDone()) {
f.get();
doneCnt++;
activeFuts0.set(i, null);
} else break;
}
if (doneCnt == activeFuts0.size()) return;
}
}
/**
* Gets next near lock mapping and either acquires dht locks locally or sends near lock request to
* remote primary node.
*
* @param mappings Queue of mappings.
* @throws GridException If mapping can not be completed.
*/
private void proceedMapping(final ConcurrentLinkedDeque8<GridNearLockMapping<K, V>> mappings)
throws GridException {
GridNearLockMapping<K, V> map = mappings.poll();
// If there are no more mappings to process, complete the future.
if (map == null) return;
final GridNearLockRequest<K, V> req = map.request();
final Collection<K> mappedKeys = map.distributedKeys();
final GridNode node = map.node();
if (filter != null && filter.length != 0) req.filter(filter, cctx);
if (node.isLocal()) {
req.miniId(GridUuid.randomUuid());
if (log.isDebugEnabled()) log.debug("Before locally locking near request: " + req);
GridFuture<GridNearLockResponse<K, V>> fut;
if (CU.DHT_ENABLED) fut = dht().lockAllAsync(cctx.localNode(), req, filter);
else {
// Create dummy values for testing.
GridNearLockResponse<K, V> res =
new GridNearLockResponse<>(lockVer, futId, null, false, 1, null);
res.addValueBytes(null, null, true, lockVer, lockVer, cctx);
fut = new GridFinishedFuture<>(ctx, res);
}
// Add new future.
add(
new GridEmbeddedFuture<>(
cctx.kernalContext(),
fut,
new C2<GridNearLockResponse<K, V>, Exception, Boolean>() {
@Override
public Boolean apply(GridNearLockResponse<K, V> res, Exception e) {
if (CU.isLockTimeoutOrCancelled(e)
|| (res != null && CU.isLockTimeoutOrCancelled(res.error()))) return false;
if (e != null) {
onError(e);
return false;
}
if (res == null) {
onError(new GridException("Lock response is null for future: " + this));
return false;
}
if (res.error() != null) {
onError(res.error());
return false;
}
if (log.isDebugEnabled())
log.debug(
"Acquired lock for local DHT mapping [locId="
+ cctx.nodeId()
+ ", mappedKeys="
+ mappedKeys
+ ", fut="
+ GridNearLockFuture.this
+ ']');
try {
int i = 0;
for (K k : mappedKeys) {
while (true) {
GridNearCacheEntry<K, V> entry =
cctx.near().entryExx(k, req.topologyVersion());
try {
GridTuple3<GridCacheVersion, V, byte[]> oldValTup =
valMap.get(entry.key());
boolean hasBytes = entry.hasValue();
V oldVal = entry.rawGet();
V newVal = res.value(i);
byte[] newBytes = res.valueBytes(i);
GridCacheVersion dhtVer = res.dhtVersion(i);
GridCacheVersion mappedVer = res.mappedVersion(i);
// On local node don't record twice if DHT cache already recorded.
boolean record =
retval && oldValTup != null && oldValTup.get1().equals(dhtVer);
if (newVal == null) {
if (oldValTup != null) {
if (oldValTup.get1().equals(dhtVer)) {
newVal = oldValTup.get2();
newBytes = oldValTup.get3();
}
oldVal = oldValTup.get2();
}
}
// Lock is held at this point, so we can set the
// returned value if any.
entry.resetFromPrimary(newVal, newBytes, lockVer, dhtVer, node.id());
entry.readyNearLock(
lockVer,
mappedVer,
res.committedVersions(),
res.rolledbackVersions(),
res.pending());
if (inTx() && implicitTx() && tx.onePhaseCommit()) {
boolean pass = res.filterResult(i);
tx.entry(k).filters(pass ? CU.<K, V>empty() : CU.<K, V>alwaysFalse());
}
if (record) {
if (cctx.events().isRecordable(EVT_CACHE_OBJECT_READ))
cctx.events()
.addEvent(
entry.partition(),
entry.key(),
tx,
null,
EVT_CACHE_OBJECT_READ,
newVal,
newVal != null,
oldVal,
hasBytes,
CU.subjectId(tx, cctx));
cctx.cache().metrics0().onRead(oldVal != null);
}
if (log.isDebugEnabled())
log.debug(
"Processed response for entry [res="
+ res
+ ", entry="
+ entry
+ ']');
break; // Inner while loop.
} catch (GridCacheEntryRemovedException ignored) {
if (log.isDebugEnabled())
log.debug(
"Failed to add candidates because entry was "
+ "removed (will renew).");
// Replace old entry with new one.
entries.set(
i,
(GridDistributedCacheEntry<K, V>) cctx.cache().entryEx(entry.key()));
}
}
i++; // Increment outside of while loop.
}
// Proceed and add new future (if any) before completing embedded future.
proceedMapping(mappings);
} catch (GridException ex) {
onError(ex);
return false;
}
return true;
}
}));
} else {
final MiniFuture fut = new MiniFuture(node, mappedKeys, mappings);
req.miniId(fut.futureId());
add(fut); // Append new future.
GridFuture<?> txSync = null;
if (inTx()) txSync = cctx.tm().awaitFinishAckAsync(node.id(), tx.threadId());
if (txSync == null || txSync.isDone()) {
try {
if (log.isDebugEnabled())
log.debug("Sending near lock request [node=" + node.id() + ", req=" + req + ']');
cctx.io().send(node, req);
} catch (GridTopologyException ex) {
assert fut != null;
fut.onResult(ex);
}
} else {
txSync.listenAsync(
new CI1<GridFuture<?>>() {
@Override
public void apply(GridFuture<?> t) {
try {
if (log.isDebugEnabled())
log.debug(
"Sending near lock request [node=" + node.id() + ", req=" + req + ']');
cctx.io().send(node, req);
} catch (GridTopologyException ex) {
assert fut != null;
fut.onResult(ex);
} catch (GridException e) {
onError(e);
}
}
});
}
}
}
