TNodesSet nodesListToSet(const TNodesList& list) {
TNodesSet ret;
for (auto i = list.begin(); i != list.end(); i++)
ret.insert(*i);
return ret;
}
TNodesSet buildNodeSet(const char* ids[], int cnt) {
TNodesSet nodes;
for (int i = 0; i < cnt; ++i) {
GridClientNode node;
GridClientNodeMarshallerHelper helper(node);
helper.setNodeId(GridClientUuid(nodeUuids[i]));
nodes.insert(node);
}
return nodes;
}
void GridClientImpl::refreshTopology() {
const GridClientConfiguration& clientCfg = sharedData->clientConfiguration();
TGridClientSocketAddressList addrs = clientCfg.routers().size() > 0
? clientCfg.routers()
: clientCfg.servers();
if (addrs.empty()) {
GG_LOG_DEBUG0("Skipping topology refresh (address list is empty).");
return;
}
TGridClientCommandExecutorPtr exec = sharedData->executor();
bool updated = false;
GG_LOG_DEBUG0("Started refreshing the topology.");
GridClientException last;
for (auto it = addrs.begin(); !updated && it != addrs.end(); ++it) {
try {
GG_LOG_DEBUG("Refresh address: %s", it->host().c_str());
GridTopologyRequestCommand topRqst;
GridClientMessageTopologyResult rslt;
TNodesSet nodes;
// Fills the command by the default value.
topRqst.setIncludeAttributes(false);
topRqst.setIncludeMetrics(false);
topRqst.setClientId(id().uuid());
topRqst.setRequestId(topRqst.generateNewId());
// Executes the topology command.
exec->executeTopologyCmd(*it, topRqst, rslt);
TNodesList nbns = rslt.getNodes();
// Extract the actual list of nodes.
nodes.insert(nbns.begin(), nbns.end());
TNodesSet prevNodes = sharedData->topology()->nodes();
// Update the topology.
sharedData->topology()->update(nodes);
fireTopologyEvents(nodes, prevNodes);
GG_LOG_DEBUG("Topology size: %d", nodes.size());
updated = true;
}
catch (GridClientException& e) {
last = e;
}
}
if (!updated)
GG_LOG_ERROR("Error refreshing the topology: %s", last.what());
GG_LOG_DEBUG0("Finished refreshing the topology.");
}