How to use

org.elasticsearch.cluster.node.DiscoveryNodes$Builder

constructor

protected void rejoin(String reason) {
  assert Thread.holdsLock(stateMutex);
  ClusterState clusterState = committedState.get();
  logger.warn("{}, current nodes: {}", reason, clusterState.nodes());
  nodesFD.stop();
  masterFD.stop(reason);
  // TODO: do we want to force a new thread if we actively removed the master? this is to give a full pinging cycle
  // before a decision is made.
  joinThreadControl.startNewThreadIfNotRunning();
  if (clusterState.nodes().getMasterNodeId() != null) {
    // remove block if it already exists before adding new one
    assert clusterState.blocks().hasGlobalBlock(discoverySettings.getNoMasterBlock().id()) == false :
      "NO_MASTER_BLOCK should only be added by ZenDiscovery";
    ClusterBlocks clusterBlocks = ClusterBlocks.builder().blocks(clusterState.blocks())
      .addGlobalBlock(discoverySettings.getNoMasterBlock())
      .build();
    DiscoveryNodes discoveryNodes = new DiscoveryNodes.Builder(clusterState.nodes()).masterNodeId(null).build();
    clusterState = ClusterState.builder(clusterState)
      .blocks(clusterBlocks)
      .nodes(discoveryNodes)
      .build();
    committedState.set(clusterState);
    clusterApplier.onNewClusterState(reason, this::clusterState, (source, e) -> {}); // don't wait for state to be applied
  }
}

public static DiscoveryNodes readFrom(StreamInput in, DiscoveryNode localNode) throws IOException {
  Builder builder = new Builder();
  if (in.readBoolean()) {
    builder.masterNodeId(in.readString());
  }
  if (localNode != null) {
    builder.localNodeId(localNode.getId());
  }
  int size = in.readVInt();
  for (int i = 0; i < size; i++) {
    DiscoveryNode node = new DiscoveryNode(in);
    if (localNode != null && node.getId().equals(localNode.getId())) {
      // reuse the same instance of our address and local node id for faster equality
      node = localNode;
    }
    // some one already built this and validated it's OK, skip the n2 scans
    assert builder.validateAdd(node) == null : "building disco nodes from network doesn't pass preflight: "
      + builder.validateAdd(node);
    builder.putUnsafe(node);
  }
  return builder.build();
}

public DiscoveryNodes removeDeadMembers(Set<String> newNodes, String masterNodeId) {
  Builder builder = new Builder().masterNodeId(masterNodeId).localNodeId(localNodeId);
  for (DiscoveryNode node : this) {
    if (newNodes.contains(node.getId())) {
      builder.add(node);
    }
  }
  return builder.build();
}

public static Builder builder(DiscoveryNodes nodes) {
  return new Builder(nodes);
}

public static Builder builder(DiscoveryNodes nodes) {
  return new Builder(nodes);
}

public static Builder builder() {
  return new Builder();
}

public DiscoveryNodes newNode(DiscoveryNode node) {
  return new Builder(this).add(node).build();
}

public DiscoveryNodes newNode(DiscoveryNode node) {
  return new Builder(this).put(node).build();
}

public static Builder builder() {
  return new Builder();
}

public DiscoveryNodes newNode(DiscoveryNode node) {
  return new Builder(this).add(node).build();
}

public static Builder builder(DiscoveryNodes nodes) {
  return new Builder(nodes);
}

public static Builder builder() {
  return new Builder();
}

public static Builder builder(DiscoveryNodes nodes) {
  return new Builder(nodes);
}

public DiscoveryNodes newNode(DiscoveryNode node) {
  return new Builder(this).add(node).build();
}

public static Builder builder() {
  return new Builder();
}

public DiscoveryNodes removeDeadMembers(Set<String> newNodes, String masterNodeId) {
  Builder builder = new Builder().masterNodeId(masterNodeId).localNodeId(localNodeId);
  for (DiscoveryNode node : this) {
    if (newNodes.contains(node.id())) {
      builder.put(node);
    }
  }
  return builder.build();
}

  public DiscoveryNodes nodes() {
    DiscoveryNodes.Builder nodesBuilder = new DiscoveryNodes.Builder();
    nodesBuilder.localNodeId(CassandraDiscovery.this.localNode.getId()).masterNodeId(CassandraDiscovery.this.localNode.getId());
    for (DiscoveryNode node : members.values()) {
      nodesBuilder.add(node);
    }
    return nodesBuilder.build();
  }
}

public static Builder builder() {
  return new Builder();
}

public DiscoveryNodes newNode(DiscoveryNode node) {
  return new Builder(this).add(node).build();
}

public static Builder builder(DiscoveryNodes nodes) {
  return new Builder(nodes);
}