/** @return Nodes to execute on. */
private Collection<GridNode> nodes() {
GridCacheMode cacheMode = cctx.config().getCacheMode();
switch (cacheMode) {
case LOCAL:
if (prj != null)
U.warn(
log,
"Ignoring query projection because it's executed over LOCAL cache "
+ "(only local node will be queried): "
+ this);
return Collections.singletonList(cctx.localNode());
case REPLICATED:
if (prj != null) return nodes(cctx, prj);
GridCacheDistributionMode mode = cctx.config().getDistributionMode();
return mode == PARTITIONED_ONLY || mode == NEAR_PARTITIONED
? Collections.singletonList(cctx.localNode())
: Collections.singletonList(F.rand(nodes(cctx, null)));
case PARTITIONED:
return nodes(cctx, prj);
default:
throw new IllegalStateException("Unknown cache distribution mode: " + cacheMode);
}
}
/**
* Creates node predicate that evaluates to {@code true} for all provided nodes. Implementation
* will make a defensive copy.
*
* @param nodes Optional grid nodes. If none provided - predicate will always return {@code
* false}.
*/
public GridNodePredicate(@Nullable GridNode... nodes) {
if (F.isEmpty(nodes)) ids = Collections.emptySet();
else if (nodes.length == 1) ids = Collections.singleton(nodes[0].id());
else {
ids = new HashSet<>(nodes.length);
for (GridNode n : nodes) ids.add(n.id());
}
}
/**
* Creates node predicate that evaluates to {@code true} for all provided node IDs. Implementation
* will make a defensive copy.
*
* @param ids Optional node IDs. If none provided - predicate will always return {@code false}.
*/
public GridNodePredicate(@Nullable UUID... ids) {
if (F.isEmpty(ids)) this.ids = Collections.emptySet();
else if (ids.length == 1) this.ids = Collections.singleton(ids[0]);
else {
this.ids = new HashSet<>(ids.length);
Collections.addAll(this.ids, ids);
}
}
/**
* Creates node shadow adapter.
*
* @param node Node.
*/
GridDiscoveryNodeShadowAdapter(GridNode node) {
assert node != null;
created = U.currentTimeMillis();
id = node.id();
attrs = Collections.unmodifiableMap(node.attributes());
addrs = Collections.unmodifiableCollection(node.addresses());
hostNames = Collections.unmodifiableCollection(node.hostNames());
order = node.order();
lastMetrics = node.metrics();
daemon = "true".equalsIgnoreCase(this.<String>attribute(ATTR_DAEMON));
}
/**
* Test file creation.
*
* @throws Exception In case of exception.
*/
public void testCreateFile() throws Exception {
GridGgfsPath root = new GridGgfsPath("/");
GridGgfsPath path = new GridGgfsPath("/asdf");
long max = 100L * CFG_BLOCK_SIZE / WRITING_THREADS_CNT;
for (long size = 0; size <= max; size = size * 15 / 10 + 1) {
assertEquals(Collections.<GridGgfsPath>emptyList(), fs.listPaths(root));
testCreateFile(path, size, new Random().nextInt());
}
}
/**
* Parses HTTP parameters in an appropriate format and return back map of values to predefined
* list of names.
*
* @param req Request.
* @return Map of parsed parameters.
*/
@SuppressWarnings({"unchecked"})
private Map<String, Object> parameters(ServletRequest req) {
Map<String, String[]> params = req.getParameterMap();
if (F.isEmpty(params)) return Collections.emptyMap();
Map<String, Object> map = U.newHashMap(params.size());
for (Map.Entry<String, String[]> entry : params.entrySet())
map.put(entry.getKey(), parameter(entry.getValue()));
return map;
}
/** @return Near keys. */
public List<byte[]> nearKeyBytes() {
return nearKeyBytes != null ? nearKeyBytes : Collections.<byte[]>emptyList();
}
/**
* Gets read-only view on internal {@code FIFO} queue in proper order.
*
* @return Read-only view ono internal {@code 'FIFO'} queue.
*/
public Collection<GridCacheEntry<K, V>> queue() {
return Collections.unmodifiableCollection(queue);
}
/** @return Collection of recovery writes. */
public Collection<GridCacheTxEntry<K, V>> recoveryWrites() {
return recoveryWrites == null
? Collections.<GridCacheTxEntry<K, V>>emptyList()
: recoveryWrites;
}
/** @return Candidates map. */
Map<K, Collection<GridCacheDgcLockCandidate>> candidatesMap() {
return Collections.unmodifiableMap(map);
}
/** @return Node class loader participant map. */
public Map<UUID, GridUuid> loaderParticipants() {
return ldrParties != null ? Collections.unmodifiableMap(ldrParties) : null;
}
/**
* Creates node predicate that evaluates to {@code true} for all provided node IDs. Implementation
* will make a defensive copy.
*
* @param ids Optional node IDs. If none provided - predicate will always return {@code false}.
*/
public GridNodePredicate(@Nullable Collection<UUID> ids) {
this.ids =
F.isEmpty(ids)
? Collections.<UUID>emptySet()
: ids.size() == 1 ? Collections.singleton(F.first(ids)) : new HashSet<>(ids);
}
/** Initializes future. */
public void prepare() {
if (log.isDebugEnabled())
log.debug("Checking if transaction was committed on remote nodes: " + tx);
// Check local node first (local node can be a backup node for some part of this transaction).
long originatingThreadId = tx.threadId();
if (tx instanceof GridCacheTxRemoteEx)
originatingThreadId = ((GridCacheTxRemoteEx) tx).remoteThreadId();
GridCacheCommittedTxInfo<K, V> txInfo =
cctx.tm().txCommitted(tx.nearXidVersion(), tx.eventNodeId(), originatingThreadId);
if (txInfo != null) {
onDone(txInfo);
markInitialized();
return;
}
Collection<GridNode> checkNodes = CU.remoteNodes(cctx, tx.topologyVersion());
if (tx instanceof GridDhtTxRemote) {
// If we got primary node failure and near node has not failed.
if (tx.nodeId().equals(failedNodeId) && !tx.eventNodeId().equals(failedNodeId)) {
nearCheck = true;
GridNode nearNode = cctx.discovery().node(tx.eventNodeId());
if (nearNode == null) {
// Near node failed, separate check prepared future will take care of it.
onDone(
new GridTopologyException(
"Failed to check near transaction state (near node left grid): "
+ tx.eventNodeId()));
return;
}
checkNodes = Collections.singletonList(nearNode);
}
}
for (GridNode rmtNode : checkNodes) {
// Skip left nodes and local node.
if (rmtNode.id().equals(failedNodeId)) continue;
/*
* Send message to all cache nodes in the topology.
*/
MiniFuture fut = new MiniFuture(rmtNode.id());
GridCachePessimisticCheckCommittedTxRequest<K, V> req =
new GridCachePessimisticCheckCommittedTxRequest<>(
tx, originatingThreadId, futureId(), fut.futureId());
add(fut);
try {
cctx.io().send(rmtNode.id(), req);
} catch (GridTopologyException ignored) {
fut.onNodeLeft();
} catch (GridException e) {
fut.onError(e);
break;
}
}
markInitialized();
}
