/**
* @param newEntries Infos.
* @param lsnr Listener for the operation future.
* @throws GridInterruptedException If failed.
* @return Future for operation.
*/
@Nullable
GridFutureAdapter<?> update(
Iterable<Map.Entry<K, V>> newEntries, GridInClosure<GridFuture<?>> lsnr)
throws GridInterruptedException {
List<Map.Entry<K, V>> entries0 = null;
GridFutureAdapter<Object> curFut0;
synchronized (this) {
curFut0 = curFut;
curFut0.listenAsync(lsnr);
for (Map.Entry<K, V> entry : newEntries) entries.add(entry);
if (entries.size() >= bufSize) {
entries0 = entries;
entries = newEntries();
curFut = new GridFutureAdapter<>(ctx);
curFut.listenAsync(signalC);
}
}
if (entries0 != null) {
submit(entries0, curFut0);
if (cancelled)
curFut0.onDone(
new GridException("Data loader has been cancelled: " + GridDataLoaderImpl.this));
}
return curFut0;
}
void cancelAll() {
GridException err =
new GridException("Data loader has been cancelled: " + GridDataLoaderImpl.this);
for (GridFuture<?> f : locFuts) {
try {
f.cancel();
} catch (GridException e) {
U.error(log, "Failed to cancel mini-future.", e);
}
}
for (GridFutureAdapter<?> f : reqs.values()) f.onDone(err);
}
/**
* @param cancel {@code True} to close with cancellation.
* @throws GridException If failed.
*/
@Override
public void close(boolean cancel) throws GridException {
if (!closed.compareAndSet(false, true)) return;
busyLock.block();
if (log.isDebugEnabled())
log.debug("Closing data loader [ldr=" + this + ", cancel=" + cancel + ']');
GridException e = null;
try {
// Assuming that no methods are called on this loader after this method is called.
if (cancel) {
cancelled = true;
for (Buffer buf : bufMappings.values()) buf.cancelAll();
} else doFlush();
ctx.event().removeLocalEventListener(discoLsnr);
ctx.io().removeMessageListener(topic);
} catch (GridException e0) {
e = e0;
}
fut.onDone(null, e);
if (e != null) throw e;
}
void onNodeLeft() {
assert !isLocNode;
assert bufMappings.get(node.id()) != this;
if (log.isDebugEnabled())
log.debug("Forcibly completing futures (node has left): " + node.id());
Exception e =
new GridTopologyException(
"Failed to wait for request completion " + "(node has left): " + node.id());
for (GridFutureAdapter<Object> f : reqs.values()) f.onDone(e);
// Make sure to complete current future.
GridFutureAdapter<Object> curFut0;
synchronized (this) {
curFut0 = curFut;
}
curFut0.onDone(e);
}
/** @param res Response. */
void onResponse(GridDataLoadResponse res) {
if (log.isDebugEnabled()) log.debug("Received data load response: " + res);
GridFutureAdapter<?> f = reqs.remove(res.requestId());
if (f == null) {
if (log.isDebugEnabled())
log.debug("Future for request has not been found: " + res.requestId());
return;
}
Throwable err = null;
byte[] errBytes = res.errorBytes();
if (errBytes != null) {
try {
GridPeerDeployAware jobPda0 = jobPda;
err =
ctx.config()
.getMarshaller()
.unmarshal(
errBytes, jobPda0 != null ? jobPda0.classLoader() : U.gridClassLoader());
} catch (GridException e) {
f.onDone(null, new GridException("Failed to unmarshal response.", e));
return;
}
}
f.onDone(null, err);
if (log.isDebugEnabled())
log.debug(
"Finished future [fut=" + f + ", reqId=" + res.requestId() + ", err=" + err + ']');
}
/** {@inheritDoc} */
@Override
public GridFuture<?> addData(Collection<? extends Map.Entry<K, V>> entries) {
A.notEmpty(entries, "entries");
enterBusy();
try {
GridFutureAdapter<Object> resFut = new GridFutureAdapter<>(ctx);
activeFuts.add(resFut);
resFut.listenAsync(rmvActiveFut);
Collection<K> keys = new GridConcurrentHashSet<>(entries.size(), 1.0f, 16);
for (Map.Entry<K, V> entry : entries) keys.add(entry.getKey());
load0(entries, resFut, keys, 0);
return resFut;
} finally {
leaveBusy();
}
}
/** @param node Node. */
Buffer(GridNode node) {
assert node != null;
this.node = node;
locFuts = new GridConcurrentHashSet<>();
reqs = new ConcurrentHashMap8<>();
// Cache local node flag.
isLocNode = node.equals(ctx.discovery().localNode());
entries = newEntries();
curFut = new GridFutureAdapter<>(ctx);
curFut.listenAsync(signalC);
sem = new Semaphore(parallelOps);
}
/**
* @return Future if any submitted.
* @throws GridInterruptedException If thread has been interrupted.
*/
@Nullable
GridFuture<?> flush() throws GridInterruptedException {
List<Map.Entry<K, V>> entries0 = null;
GridFutureAdapter<Object> curFut0 = null;
synchronized (this) {
if (!entries.isEmpty()) {
entries0 = entries;
curFut0 = curFut;
entries = newEntries();
curFut = new GridFutureAdapter<>(ctx);
curFut.listenAsync(signalC);
}
}
if (entries0 != null) submit(entries0, curFut0);
// Create compound future for this flush.
GridCompoundFuture<Object, Object> res = null;
for (GridFuture<Object> f : locFuts) {
if (res == null) res = new GridCompoundFuture<>(ctx);
res.add(f);
}
for (GridFuture<Object> f : reqs.values()) {
if (res == null) res = new GridCompoundFuture<>(ctx);
res.add(f);
}
if (res != null) res.markInitialized();
return res;
}
/** @return {@code true} If the loader is closed. */
boolean isClosed() {
return fut.isDone();
}
/**
* @param entries Entries.
* @param resFut Result future.
* @param activeKeys Active keys.
* @param remaps Remaps count.
*/
private void load0(
Collection<? extends Map.Entry<K, V>> entries,
final GridFutureAdapter<Object> resFut,
final Collection<K> activeKeys,
final int remaps) {
assert entries != null;
if (remaps >= MAX_REMAP_CNT) {
resFut.onDone(new GridException("Failed to finish operation (too many remaps): " + remaps));
return;
}
Map<GridNode, Collection<Map.Entry<K, V>>> mappings = new HashMap<>();
boolean initPda = ctx.deploy().enabled() && jobPda == null;
for (Map.Entry<K, V> entry : entries) {
GridNode node;
try {
K key = entry.getKey();
assert key != null;
if (initPda) {
jobPda = new DataLoaderPda(key, entry.getValue(), updater);
initPda = false;
}
node = ctx.affinity().mapKeyToNode(cacheName, key);
} catch (GridException e) {
resFut.onDone(e);
return;
}
if (node == null) {
resFut.onDone(
new GridTopologyException(
"Failed to map key to node "
+ "(no nodes with cache found in topology) [infos="
+ entries.size()
+ ", cacheName="
+ cacheName
+ ']'));
return;
}
Collection<Map.Entry<K, V>> col = mappings.get(node);
if (col == null) mappings.put(node, col = new ArrayList<>());
col.add(entry);
}
for (final Map.Entry<GridNode, Collection<Map.Entry<K, V>>> e : mappings.entrySet()) {
final UUID nodeId = e.getKey().id();
Buffer buf = bufMappings.get(nodeId);
if (buf == null) {
Buffer old = bufMappings.putIfAbsent(nodeId, buf = new Buffer(e.getKey()));
if (old != null) buf = old;
}
final Collection<Map.Entry<K, V>> entriesForNode = e.getValue();
GridInClosure<GridFuture<?>> lsnr =
new GridInClosure<GridFuture<?>>() {
@Override
public void apply(GridFuture<?> t) {
try {
t.get();
for (Map.Entry<K, V> e : entriesForNode) activeKeys.remove(e.getKey());
if (activeKeys.isEmpty()) resFut.onDone();
} catch (GridException e1) {
if (log.isDebugEnabled())
log.debug("Future finished with error [nodeId=" + nodeId + ", err=" + e1 + ']');
if (cancelled) {
resFut.onDone(
new GridException(
"Data loader has been cancelled: " + GridDataLoaderImpl.this, e1));
} else load0(entriesForNode, resFut, activeKeys, remaps + 1);
}
}
};
GridFutureAdapter<?> f;
try {
f = buf.update(entriesForNode, lsnr);
} catch (GridInterruptedException e1) {
resFut.onDone(e1);
return;
}
if (ctx.discovery().node(nodeId) == null) {
if (bufMappings.remove(nodeId, buf)) buf.onNodeLeft();
if (f != null)
f.onDone(
new GridTopologyException(
"Failed to wait for request completion " + "(node has left): " + nodeId));
}
}
}
