Examples with MultiDcNodeSet com.datastax.oss.driver.internal.core.loadbalancing.nodeset.MultiDcNodeSet used on opensource projects

Example 1 with MultiDcNodeSet

use of com.datastax.oss.driver.internal.core.loadbalancing.nodeset.MultiDcNodeSet in project java-driver by datastax.

the class BasicLoadBalancingPolicy method init.

@Override
public void init(@NonNull Map<UUID, Node> nodes, @NonNull DistanceReporter distanceReporter) {
    this.distanceReporter = distanceReporter;
    localDc = discoverLocalDc(nodes).orElse(null);
    nodeDistanceEvaluator = createNodeDistanceEvaluator(localDc, nodes);
    liveNodes = localDc == null ? new DcAgnosticNodeSet() : maxNodesPerRemoteDc <= 0 ? new SingleDcNodeSet(localDc) : new MultiDcNodeSet();
    for (Node node : nodes.values()) {
        NodeDistance distance = computeNodeDistance(node);
        distanceReporter.setDistance(node, distance);
        if (distance != NodeDistance.IGNORED && node.getState() != NodeState.DOWN) {
            // This includes state == UNKNOWN. If the node turns out to be unreachable, this will be
            // detected when we try to open a pool to it, it will get marked down and this will be
            // signaled back to this policy, which will then remove it from the live set.
            liveNodes.add(node);
        }
    }
}