/**
* Completeness callback.
*
* @param success {@code True} if lock was acquired.
* @param distribute {@code True} if need to distribute lock removal in case of failure.
* @return {@code True} if complete by this operation.
*/
private boolean onComplete(boolean success, boolean distribute) {
if (log.isDebugEnabled())
log.debug(
"Received onComplete(..) callback [success="
+ success
+ ", distribute="
+ distribute
+ ", fut="
+ this
+ ']');
if (!success) undoLocks(distribute);
if (tx != null) cctx.tm().txContext(tx);
if (super.onDone(success, err.get())) {
if (log.isDebugEnabled()) log.debug("Completing future: " + this);
// Clean up.
cctx.mvcc().removeFuture(this);
if (timeoutObj != null) cctx.time().removeTimeoutObject(timeoutObj);
return true;
}
return false;
}
/**
* @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;
}
/**
* {@inheritDoc}
*
* @param ctx
*/
@Override
public void prepareMarshal(GridCacheSharedContext ctx) throws IgniteCheckedException {
super.prepareMarshal(ctx);
if (ownedVals != null) {
ownedValKeys = ownedVals.keySet();
ownedValVals = ownedVals.values();
for (Map.Entry<IgniteTxKey, CacheVersionedValue> entry : ownedVals.entrySet()) {
GridCacheContext cacheCtx = ctx.cacheContext(entry.getKey().cacheId());
entry.getKey().prepareMarshal(cacheCtx);
entry.getValue().prepareMarshal(cacheCtx.cacheObjectContext());
}
}
if (retVal != null && retVal.cacheId() != 0) {
GridCacheContext cctx = ctx.cacheContext(retVal.cacheId());
assert cctx != null : retVal.cacheId();
retVal.prepareMarshal(cctx);
}
if (filterFailedKeys != null) {
for (IgniteTxKey key : filterFailedKeys) {
GridCacheContext cctx = ctx.cacheContext(key.cacheId());
key.prepareMarshal(cctx);
}
}
}
/** {@inheritDoc} */
@Override
public boolean onDone(GridCacheTx tx, Throwable err) {
if ((initialized() || err != null) && super.onDone(tx, err)) {
if (error() instanceof GridCacheTxHeuristicException) {
long topVer = this.tx.topologyVersion();
for (GridCacheTxEntry<K, V> e : this.tx.writeMap().values()) {
try {
if (e.op() != NOOP && !cctx.affinity().localNode(e.key(), topVer)) {
GridCacheEntryEx<K, V> cacheEntry = cctx.cache().peekEx(e.key());
if (cacheEntry != null) cacheEntry.invalidate(null, this.tx.xidVersion());
}
} catch (Throwable t) {
U.error(log, "Failed to invalidate entry.", t);
if (t instanceof Error) throw (Error) t;
}
}
}
// Don't forget to clean up.
cctx.mvcc().removeFuture(this);
return true;
}
return false;
}
/** {@inheritDoc} */
@Override
public void prepareMarshal(GridCacheContext<K, V> ctx) throws GridException {
super.prepareMarshal(ctx);
if (entries != null) {
if (ctx.deploymentEnabled()) prepareObjects(entries, ctx);
entriesBytes = ctx.marshaller().marshal(entries);
}
}
/** {@inheritDoc} */
@SuppressWarnings("TypeMayBeWeakened")
@Nullable
private Collection<byte[]> marshalFieldsCollection(
@Nullable Collection<Object> col, GridCacheContext<K, V> ctx) throws GridException {
assert ctx != null;
if (col == null) return null;
Collection<List<Object>> col0 = new ArrayList<>(col.size());
for (Object o : col) {
List<GridIndexingEntity<?>> list = (List<GridIndexingEntity<?>>) o;
List<Object> list0 = new ArrayList<>(list.size());
for (GridIndexingEntity<?> ent : list) {
if (ent.bytes() != null) list0.add(ent.bytes());
else {
if (ctx.deploymentEnabled()) prepareObject(ent.value(), ctx);
list0.add(CU.marshal(ctx, ent.value()));
}
}
col0.add(list0);
}
return marshalCollection(col0, ctx);
}
/**
* Adds a Near key.
*
* @param key Key.
* @param keyBytes Key bytes.
* @param ctx Context.
* @throws GridException If failed.
*/
public void addNearKey(K key, byte[] keyBytes, GridCacheContext<K, V> ctx) throws GridException {
if (ctx.deploymentEnabled()) prepareObject(key, ctx);
if (nearKeyBytes == null) nearKeyBytes = new ArrayList<>();
nearKeyBytes.add(keyBytes);
}
/** {@inheritDoc} */
@SuppressWarnings("TypeMayBeWeakened")
@Nullable
private Collection<Object> unmarshalFieldsCollection(
@Nullable Collection<byte[]> byteCol, GridCacheContext<K, V> ctx, ClassLoader ldr)
throws GridException {
assert ctx != null;
assert ldr != null;
Collection<Object> col = unmarshalCollection(byteCol, ctx, ldr);
Collection<Object> col0 = null;
if (col != null) {
col0 = new ArrayList<>(col.size());
for (Object o : col) {
List<Object> list = (List<Object>) o;
List<Object> list0 = new ArrayList<>(list.size());
for (Object obj : list)
list0.add(obj != null ? ctx.marshaller().unmarshal((byte[]) obj, ldr) : null);
col0.add(list0);
}
}
return col0;
}
/**
* @param ctx Cache registry.
* @param implicit Implicit flag.
* @param implicitSingle Implicit with one key flag.
* @param concurrency Concurrency.
* @param isolation Isolation.
* @param timeout Timeout.
* @param invalidate Invalidation policy.
* @param syncCommit Synchronous commit flag.
* @param syncRollback Synchronous rollback flag.
* @param swapEnabled Whether to use swap storage.
* @param storeEnabled Whether to use read/write through.
*/
GridNearTxLocal(
GridCacheContext<K, V> ctx,
boolean implicit,
boolean implicitSingle,
GridCacheTxConcurrency concurrency,
GridCacheTxIsolation isolation,
long timeout,
boolean invalidate,
boolean syncCommit,
boolean syncRollback,
boolean swapEnabled,
boolean storeEnabled) {
super(
ctx,
ctx.versions().next(),
implicit,
implicitSingle,
concurrency,
isolation,
timeout,
invalidate,
swapEnabled,
storeEnabled);
assert ctx != null;
this.syncCommit = syncCommit;
this.syncRollback = syncRollback;
}
/**
* Constructor.
*
* @param name Latch name.
* @param cnt Current count.
* @param initCnt Initial count.
* @param autoDel Auto delete flag.
* @param key Latch key.
* @param latchView Latch projection.
* @param ctx Cache context.
*/
public GridCacheCountDownLatchImpl(
String name,
int cnt,
int initCnt,
boolean autoDel,
GridCacheInternalKey key,
GridCacheProjection<GridCacheInternalKey, GridCacheCountDownLatchValue> latchView,
GridCacheContext ctx) {
assert name != null;
assert cnt >= 0;
assert initCnt >= 0;
assert key != null;
assert latchView != null;
assert ctx != null;
this.name = name;
this.cnt = cnt;
this.initCnt = initCnt;
this.autoDel = autoDel;
this.key = key;
this.latchView = latchView;
this.ctx = ctx;
log = ctx.gridConfig().getGridLogger().getLogger(getClass());
}
/** @param m Mapping. */
@SuppressWarnings({"unchecked"})
private void finish(GridDistributedTxMapping<K, V> m) {
GridRichNode n = m.node();
assert !m.empty();
GridNearTxFinishRequest req =
new GridNearTxFinishRequest<K, V>(
futId,
tx.xidVersion(),
tx.commitVersion(),
tx.threadId(),
commit,
tx.isInvalidate(),
m.explicitLock(),
tx.topologyVersion(),
null,
null,
null,
commit && tx.pessimistic() ? m.writes() : null,
tx.syncCommit() && commit || tx.syncRollback() && !commit);
// If this is the primary node for the keys.
if (n.isLocal()) {
req.miniId(GridUuid.randomUuid());
if (CU.DHT_ENABLED) {
GridFuture<GridCacheTx> fut =
commit ? dht().commitTx(n.id(), req) : dht().rollbackTx(n.id(), req);
// Add new future.
add(fut);
} else
// Add done future for testing.
add(new GridFinishedFuture<GridCacheTx>(ctx));
} else {
MiniFuture fut = new MiniFuture(m);
req.miniId(fut.futureId());
add(fut); // Append new future.
try {
cctx.io().send(n, req);
// If we don't wait for result, then mark future as done.
if (!isSync() && !m.explicitLock()) fut.onDone();
} catch (GridTopologyException e) {
// Remove previous mapping.
mappings.remove(m.node().id());
fut.onResult(e);
} catch (GridException e) {
// Fail the whole thing.
fut.onResult(e);
}
}
}
/**
* @param entry Transaction entry.
* @param nodes Nodes.
*/
private void map(GridCacheTxEntry<K, V> entry, Collection<GridRichNode> nodes) {
GridRichNode primary = CU.primary0(cctx.affinity(entry.key(), nodes));
GridDistributedTxMapping<K, V> t = mappings.get(primary.id());
if (t == null) mappings.put(primary.id(), t = new GridDistributedTxMapping<K, V>(primary));
t.add(entry);
}
/**
* @param entry Entry to enlist.
* @throws IgniteCheckedException If failed.
* @return {@code True} if entry was enlisted.
*/
private boolean addEntry(IgniteTxEntry entry) throws IgniteCheckedException {
checkInternal(entry.txKey());
GridCacheContext cacheCtx = entry.context();
if (!cacheCtx.isNear()) cacheCtx = cacheCtx.dht().near().context();
GridNearCacheEntry cached = cacheCtx.near().peekExx(entry.key());
if (cached == null) {
evicted.add(entry.txKey());
return false;
} else {
cached.unswap();
try {
CacheObject val = cached.peek(true, false, false, null);
if (val == null && cached.evictInternal(false, xidVer, null)) {
evicted.add(entry.txKey());
return false;
} else {
// Initialize cache entry.
entry.cached(cached);
writeMap.put(entry.txKey(), entry);
addExplicit(entry);
return true;
}
} catch (GridCacheEntryRemovedException ignore) {
evicted.add(entry.txKey());
if (log.isDebugEnabled())
log.debug("Got removed entry when adding to remote transaction (will ignore): " + cached);
return false;
}
}
}
/** {@inheritDoc} */
@Override
public boolean onDone(GridCacheTx tx, Throwable err) {
if (initialized() && super.onDone(tx, err)) {
// Don't forget to clean up.
cctx.mvcc().removeFuture(this);
return true;
}
return false;
}
/** {@inheritDoc} */
@Override
public void prepareMarshal(GridCacheContext<K, V> ctx) throws GridException {
super.prepareMarshal(ctx);
if (err != null) errBytes = ctx.marshaller().marshal(err);
metaDataBytes = marshalCollection(metadata, ctx);
dataBytes = fields ? marshalFieldsCollection(data, ctx) : marshalCollection(data, ctx);
if (ctx.deploymentEnabled() && !F.isEmpty(data)) {
for (Object o : data) {
if (o instanceof Map.Entry) {
Map.Entry e = (Map.Entry) o;
prepareObject(e.getKey(), ctx);
prepareObject(e.getValue(), ctx);
}
}
}
}
/**
* Undoes all locks.
*
* @param dist If {@code true}, then remove locks from remote nodes as well.
*/
private void undoLocks(boolean dist) {
// Transactions will undo during rollback.
if (dist && tx == null) cctx.nearTx().removeLocks(lockVer, keys);
else {
if (tx != null) {
if (tx.setRollbackOnly()) {
if (log.isDebugEnabled())
log.debug(
"Marked transaction as rollback only because locks could not be acquired: " + tx);
} else if (log.isDebugEnabled())
log.debug(
"Transaction was not marked rollback-only while locks were not acquired: " + tx);
}
for (GridCacheEntryEx<K, V> e : entriesCopy()) {
try {
e.removeLock(lockVer);
} catch (GridCacheEntryRemovedException ignored) {
while (true) {
try {
e = cctx.cache().peekEx(e.key());
if (e != null) e.removeLock(lockVer);
break;
} catch (GridCacheEntryRemovedException ignore) {
if (log.isDebugEnabled())
log.debug(
"Attempted to remove lock on removed entry (will retry) [ver="
+ lockVer
+ ", entry="
+ e
+ ']');
}
}
}
}
}
cctx.mvcc().recheckPendingLocks();
}
/** {@inheritDoc} */
@Override
public void finishUnmarshal(GridCacheContext<K, V> ctx, ClassLoader ldr) throws GridException {
super.finishUnmarshal(ctx, ldr);
if (errBytes != null) err = ctx.marshaller().unmarshal(errBytes, ldr);
metadata = unmarshalCollection(metaDataBytes, ctx, ldr);
data =
fields
? unmarshalFieldsCollection(dataBytes, ctx, ldr)
: unmarshalCollection(dataBytes, ctx, ldr);
}
/** {@inheritDoc} */
@Override
public GridFuture<Boolean> awaitAsync(final long timeout, final TimeUnit unit) {
return ctx.closures()
.callLocalSafe(
new Callable<Boolean>() {
@Override
public Boolean call() throws Exception {
return await(timeout, unit);
}
},
true);
}
/**
* Default constructor.
*
* @param name Sequence name.
* @param key Sequence key.
* @param seqView Sequence projection.
* @param ctx CacheContext.
* @param locVal Local counter.
* @param upBound Upper bound.
*/
public GridCacheAtomicSequenceImpl(
String name,
GridCacheInternalStorableKey key,
GridCacheProjection<GridCacheInternalStorableKey, GridCacheAtomicSequenceValue> seqView,
GridCacheContext ctx,
long locVal,
long upBound) {
assert key != null;
assert seqView != null;
assert ctx != null;
assert locVal <= upBound;
batchSize = ctx.config().getAtomicSequenceReserveSize();
this.ctx = ctx;
this.key = key;
this.seqView = seqView;
this.upBound = upBound;
this.locVal = locVal;
this.name = name;
log = ctx.gridConfig().getGridLogger().getLogger(getClass());
}
/**
* @param cctx Registry.
* @param keys Keys to lock.
* @param tx Transaction.
* @param read Read flag.
* @param retval Flag to return value or not.
* @param timeout Lock acquisition timeout.
* @param filter Filter.
*/
public GridNearLockFuture(
GridCacheContext<K, V> cctx,
Collection<? extends K> keys,
@Nullable GridNearTxLocal<K, V> tx,
boolean read,
boolean retval,
long timeout,
GridPredicate<GridCacheEntry<K, V>>[] filter) {
super(cctx.kernalContext(), CU.boolReducer());
assert cctx != null;
assert keys != null;
this.cctx = cctx;
this.keys = keys;
this.tx = tx;
this.read = read;
this.retval = retval;
this.timeout = timeout;
this.filter = filter;
threadId = tx == null ? Thread.currentThread().getId() : tx.threadId();
lockVer = tx != null ? tx.xidVersion() : cctx.versions().next();
futId = GridUuid.randomUuid();
entries = new ArrayList<>(keys.size());
log = U.logger(ctx, logRef, GridNearLockFuture.class);
if (timeout > 0) {
timeoutObj = new LockTimeoutObject();
cctx.time().addTimeoutObject(timeoutObj);
}
valMap = new ConcurrentHashMap8<>(keys.size(), 1f);
}
/**
* Acquires topology future and checks it completeness under the read lock. If it is not complete,
* will asynchronously wait for it's completeness and then try again.
*/
void mapOnTopology() {
// We must acquire topology snapshot from the topology version future.
try {
cctx.topology().readLock();
try {
GridDhtTopologyFuture fut = cctx.topologyVersionFuture();
if (fut.isDone()) {
GridDiscoveryTopologySnapshot snapshot = fut.topologySnapshot();
if (tx != null) {
tx.topologyVersion(snapshot.topologyVersion());
tx.topologySnapshot(snapshot);
}
topSnapshot.compareAndSet(null, snapshot);
map(keys);
markInitialized();
} else {
fut.listenAsync(
new CI1<GridFuture<Long>>() {
@Override
public void apply(GridFuture<Long> t) {
mapOnTopology();
}
});
}
} finally {
cctx.topology().readUnlock();
}
} catch (GridException e) {
onDone(e);
}
}
/**
* @param cctx Context.
* @param tx Transaction.
* @param failedNodeId ID of failed node started transaction.
*/
@SuppressWarnings("ConstantConditions")
public GridCachePessimisticCheckCommittedTxFuture(
GridCacheContext<K, V> cctx, GridCacheTxEx<K, V> tx, UUID failedNodeId) {
super(cctx.kernalContext(), new SingleReducer<K, V>());
this.cctx = cctx;
this.tx = tx;
this.failedNodeId = failedNodeId;
log = U.logger(ctx, logRef, GridCacheOptimisticCheckPreparedTxFuture.class);
nodes = new GridLeanMap<>();
for (GridNode node : CU.allNodes(cctx, tx.topologyVersion())) nodes.put(node.id(), node);
}
/** {@inheritDoc} */
@Override
public GridFuture<?> awaitAsync() {
return ctx.closures()
.callLocalSafe(
new Callable<Object>() {
@Nullable
@Override
public Object call() throws Exception {
await();
return null;
}
},
true);
}
/** {@inheritDoc} */
@Override
public boolean onDone(@Nullable GridCacheCommittedTxInfo<K, V> res, @Nullable Throwable err) {
if (super.onDone(res, err)) {
cctx.mvcc().removeFuture(this);
if (log.isDebugEnabled())
log.debug(
"Completing check committed tx future for transaction [tx="
+ tx
+ ", res="
+ res
+ ", err="
+ err
+ ']');
if (err == null) cctx.tm().finishPessimisticTxOnRecovery(tx, res);
else {
if (log.isDebugEnabled())
log.debug(
"Failed to check prepared transactions, "
+ "invalidating transaction [err="
+ err
+ ", tx="
+ tx
+ ']');
if (nearCheck) return true;
cctx.tm().salvageTx(tx);
}
return true;
}
return false;
}
/**
* @param cctx Context.
* @param tx Transaction.
* @param commit Commit flag.
*/
public GridNearTxFinishFuture(
GridCacheContext<K, V> cctx, GridNearTxLocal<K, V> tx, boolean commit) {
super(cctx.kernalContext(), F.<GridCacheTx>identityReducer(tx));
assert cctx != null;
this.cctx = cctx;
this.tx = tx;
this.commit = commit;
mappings = tx.mappings();
futId = GridUuid.randomUuid();
log = U.logger(ctx, logRef, GridNearTxFinishFuture.class);
}
/**
* @param key Key to add to read set.
* @param val Value.
* @param drVer Data center replication version.
* @param skipStore Skip store flag.
* @throws IgniteCheckedException If failed.
* @return {@code True} if entry has been enlisted.
*/
public boolean addEntry(
GridCacheContext cacheCtx,
IgniteTxKey key,
GridCacheOperation op,
CacheObject val,
@Nullable GridCacheVersion drVer,
boolean skipStore)
throws IgniteCheckedException {
checkInternal(key);
GridNearCacheEntry cached = cacheCtx.near().peekExx(key.key());
try {
if (cached == null) {
evicted.add(key);
return false;
} else {
cached.unswap();
CacheObject peek = cached.peek(true, false, false, null);
if (peek == null && cached.evictInternal(false, xidVer, null)) {
cached.context().cache().removeIfObsolete(key.key());
evicted.add(key);
return false;
} else {
IgniteTxEntry txEntry =
new IgniteTxEntry(cacheCtx, this, op, val, -1L, -1L, cached, drVer, skipStore);
writeMap.put(key, txEntry);
return true;
}
}
} catch (GridCacheEntryRemovedException ignore) {
evicted.add(key);
if (log.isDebugEnabled())
log.debug(
"Got removed entry when adding reads to remote transaction (will ignore): " + cached);
return false;
}
}
/**
* Default constructor.
*
* @param name Atomic reference name.
* @param key Atomic reference key.
* @param atomicView Atomic projection.
* @param ctx Cache context.
*/
public GridCacheAtomicReferenceImpl(
String name,
GridCacheInternalKey key,
GridCacheProjection<GridCacheInternalKey, GridCacheAtomicReferenceValue<T>> atomicView,
GridCacheContext ctx) {
assert key != null;
assert atomicView != null;
assert ctx != null;
assert name != null;
this.ctx = ctx;
this.key = key;
this.atomicView = atomicView;
this.name = name;
log = ctx.gridConfig().getGridLogger().getLogger(getClass());
}
/**
* @param cached Entry to check.
* @return {@code True} if filter passed.
*/
private boolean filter(GridCacheEntryEx<K, V> cached) {
try {
if (!cctx.isAll(cached, filter)) {
if (log.isDebugEnabled())
log.debug("Filter didn't pass for entry (will fail lock): " + cached);
onFailed(true);
return false;
}
return true;
} catch (GridException e) {
onError(e);
return false;
}
}
/** @return {@code True} if locks have been acquired. */
private boolean checkLocks() {
if (!isDone() && initialized() && !hasPending()) {
for (int i = 0; i < entries.size(); i++) {
while (true) {
GridCacheEntryEx<K, V> cached = entries.get(i);
try {
if (!locked(cached)) {
if (log.isDebugEnabled())
log.debug(
"Lock is still not acquired for entry (will keep waiting) [entry="
+ cached
+ ", fut="
+ this
+ ']');
return false;
}
break;
}
// Possible in concurrent cases, when owner is changed after locks
// have been released or cancelled.
catch (GridCacheEntryRemovedException ignore) {
if (log.isDebugEnabled())
log.debug("Got removed entry in onOwnerChanged method (will retry): " + cached);
// Replace old entry with new one.
entries.set(i, (GridDistributedCacheEntry<K, V>) cctx.cache().entryEx(cached.key()));
}
}
}
if (log.isDebugEnabled())
log.debug("Local lock acquired for entries [fut=" + this + ", entries=" + entries + "]");
onComplete(true, true);
return true;
}
return false;
}
/**
* Basically, future mapping consists from two parts. First, we must determine the topology
* version this future will map on. Locking is performed within a user transaction, we must
* continue to map keys on the same topology version as it started. If topology version is
* undefined, we get current topology future and wait until it completes so the topology is ready
* to use.
*
* <p>During the second part we map keys to primary nodes using topology snapshot we obtained
* during the first part. Note that if primary node leaves grid, the future will fail and
* transaction will be rolled back.
*/
void map() {
// Obtain the topology version to use.
GridDiscoveryTopologySnapshot snapshot =
tx != null
? tx.topologySnapshot()
: cctx.mvcc().lastExplicitLockTopologySnapshot(Thread.currentThread().getId());
if (snapshot != null) {
// Continue mapping on the same topology version as it was before.
topSnapshot.compareAndSet(null, snapshot);
map(keys);
markInitialized();
return;
}
// Must get topology snapshot and map on that version.
mapOnTopology();
}
