C++ (Cpp) GridClientMessageTopologyResult::getNodes Examples

Example #1

File: gridclientcomputeprojection.cpp Project: c0s/gridgain

TGridClientNodeList GridClientComputeProjectionImpl::refreshTopology(GridTopologyRequestCommand& cmd) {
    class RefreshTopologyProjectionClosure: public ClientMessageProjectionClosure {
    public:
        RefreshTopologyProjectionClosure(std::string clientId, GridTopologyRequestCommand& topReqCmd,
                GridClientMessageTopologyResult& rslt)
                : ClientMessageProjectionClosure(clientId), cmd(topReqCmd), topRslt(rslt) {
        }

        virtual void apply(TGridClientNodePtr node, GridSocketAddress connParams, GridClientCommandExecutor& cmdExecutor) {
            fillRequestHeader(cmd, node);

            cmdExecutor.executeTopologyCmd(connParams, cmd, topRslt);
        }

    private:
        GridTopologyRequestCommand& cmd;
        GridClientMessageTopologyResult& topRslt;
    };

    GridClientMessageTopologyResult topRslt;

    RefreshTopologyProjectionClosure topClosure(clientUniqueId(), cmd, topRslt);

    TGridClientNodeList nodes;

    withReconnectHandling(topClosure);

    TNodesList nodesList = topRslt.getNodes();

    for (auto iter = nodesList.begin(); iter != nodesList.end(); ++iter)
        nodes.push_back(TGridClientNodePtr(new GridClientNode(*iter)));

    return nodes;
}

Example #2

File: gridclientimpl.cpp Project: 10fish/gridgain

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.");
}