/**
* Sends optional message. If message is {@code null} - it's no-op.
*
* @param nodeId ID of the node to send message to.
* @param respMsg Message to send.
* @throws GridException Thrown in case of any errors.
*/
private void send(UUID nodeId, @Nullable Object respMsg) throws GridException {
assert nodeId != null;
if (respMsg != null) {
GridNode node = grid.node(nodeId);
if (node != null) grid.forNode(node).message().send(null, respMsg); // Can still fail.
else
throw new GridException(
"Failed to send message since destination node has "
+ "left topology (ignoring) [nodeId="
+ nodeId
+ ", respMsg="
+ respMsg
+ ']');
}
}
