/** {@inheritDoc} */
@Override
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
depEnabled = in.readBoolean();
if (depEnabled) {
topicBytes = U.readByteArray(in);
predBytes = U.readByteArray(in);
clsName = U.readString(in);
depInfo = (GridDeploymentInfoBean) in.readObject();
} else {
topic = in.readObject();
pred = (GridBiPredicate<UUID, Object>) in.readObject();
}
}
/** {@inheritDoc} */
@Override
public void writeExternal(ObjectOutput out) throws IOException {
out.writeBoolean(depEnabled);
if (depEnabled) {
U.writeByteArray(out, topicBytes);
U.writeByteArray(out, predBytes);
U.writeString(out, clsName);
out.writeObject(depInfo);
} else {
out.writeObject(topic);
out.writeObject(pred);
}
}
/** {@inheritDoc} */
@Override
public void p2pMarshal(GridKernalContext ctx) throws GridException {
assert ctx != null;
assert ctx.config().isPeerClassLoadingEnabled();
if (topic != null) topicBytes = ctx.config().getMarshaller().marshal(topic);
predBytes = ctx.config().getMarshaller().marshal(pred);
GridPeerDeployAware pda = U.peerDeployAware0(topic, pred);
clsName = pda.deployClass().getName();
GridDeployment dep = ctx.deploy().deploy(pda.deployClass(), pda.classLoader());
if (dep == null) throw new GridDeploymentException("Failed to deploy message listener.");
depInfo = new GridDeploymentInfoBean(dep);
depEnabled = true;
}
/** {@inheritDoc} */
@Override
public void execute(@Nullable GridProjection prj) throws GridException {
if (cb == null)
throw new IllegalStateException("Mandatory local callback is not set for the query: " + this);
if (prj == null) prj = ctx.grid();
prj = prj.forCache(ctx.name());
if (prj.nodes().isEmpty())
throw new GridTopologyException("Failed to execute query (projection is empty): " + this);
GridCacheMode mode = ctx.config().getCacheMode();
if (mode == LOCAL || mode == REPLICATED) {
Collection<GridNode> nodes = prj.nodes();
GridNode node = nodes.contains(ctx.localNode()) ? ctx.localNode() : F.rand(nodes);
assert node != null;
if (nodes.size() > 1 && !ctx.cache().isDrSystemCache()) {
if (node.id().equals(ctx.localNodeId()))
U.warn(
log,
"Continuous query for "
+ mode
+ " cache can be run only on local node. "
+ "Will execute query locally: "
+ this);
else
U.warn(
log,
"Continuous query for "
+ mode
+ " cache can be run only on single node. "
+ "Will execute query on remote node [qry="
+ this
+ ", node="
+ node
+ ']');
}
prj = prj.forNode(node);
}
closeLock.lock();
try {
if (routineId != null)
throw new IllegalStateException("Continuous query can't be executed twice.");
guard.block();
GridContinuousHandler hnd =
new GridCacheContinuousQueryHandler<>(ctx.name(), topic, cb, filter, prjPred);
routineId =
ctx.kernalContext()
.continuous()
.startRoutine(hnd, bufSize, timeInterval, autoUnsubscribe, prj.predicate())
.get();
} finally {
closeLock.unlock();
}
}