/**
* Sends query request.
*
* @param fut Distributed future.
* @param req Request.
* @param nodes Nodes.
* @throws IgniteCheckedException In case of error.
*/
@SuppressWarnings("unchecked")
private void sendRequest(
final GridCacheDistributedQueryFuture<?, ?, ?> fut,
final GridCacheQueryRequest req,
Collection<ClusterNode> nodes)
throws IgniteCheckedException {
assert fut != null;
assert req != null;
assert nodes != null;
final UUID locNodeId = cctx.localNodeId();
ClusterNode locNode = null;
Collection<ClusterNode> rmtNodes = null;
for (ClusterNode n : nodes) {
if (n.id().equals(locNodeId)) locNode = n;
else {
if (rmtNodes == null) rmtNodes = new ArrayList<>(nodes.size());
rmtNodes.add(n);
}
}
// Request should be sent to remote nodes before the query is processed on the local node.
// For example, a remote reducer has a state, we should not serialize and then send
// the reducer changed by the local node.
if (!F.isEmpty(rmtNodes)) {
cctx.io()
.safeSend(
rmtNodes,
req,
cctx.ioPolicy(),
new P1<ClusterNode>() {
@Override
public boolean apply(ClusterNode node) {
fut.onNodeLeft(node.id());
return !fut.isDone();
}
});
}
if (locNode != null) {
cctx.closures()
.callLocalSafe(
new Callable<Object>() {
@Override
public Object call() throws Exception {
req.beforeLocalExecution(cctx);
processQueryRequest(locNodeId, req);
return null;
}
});
}
}
/**
* Constructor.
*
* @param igfsCtx IGFS context.
*/
IgfsDeleteWorker(IgfsContext igfsCtx) {
super(
"igfs-delete-worker%"
+ igfsCtx.igfs().name()
+ "%"
+ igfsCtx.kernalContext().localNodeId()
+ "%");
this.igfsCtx = igfsCtx;
meta = igfsCtx.meta();
data = igfsCtx.data();
evts = igfsCtx.kernalContext().event();
String igfsName = igfsCtx.igfs().name();
topic = F.isEmpty(igfsName) ? TOPIC_IGFS : TOPIC_IGFS.topic(igfsName);
assert meta != null;
assert data != null;
log = igfsCtx.kernalContext().log(IgfsDeleteWorker.class);
}