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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.clustercontroller.core;
import com.yahoo.collections.Pair;
import com.yahoo.vdslib.state.ClusterState;
import com.yahoo.vdslib.state.Node;
import com.yahoo.vdslib.state.NodeState;
import com.yahoo.vdslib.state.State;
import com.yahoo.vespa.clustercontroller.core.listeners.SlobrokListener;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
public class DummyCommunicator implements Communicator, NodeLookup {
List<Node> newNodes;
private final Timer timer;
private boolean shouldDeferDistributorClusterStateAcks = false;
private final List<Pair<Waiter<SetClusterStateRequest>, DummySetClusterStateRequest>> deferredClusterStateAcks = new ArrayList<>();
void setShouldDeferDistributorClusterStateAcks(boolean shouldDeferDistributorClusterStateAcks) {
this.shouldDeferDistributorClusterStateAcks = shouldDeferDistributorClusterStateAcks;
}
static class DummyGetNodeStateRequest extends GetNodeStateRequest {
final Waiter<GetNodeStateRequest> waiter;
DummyGetNodeStateRequest(NodeInfo nodeInfo, Waiter<GetNodeStateRequest> waiter) {
super(nodeInfo);
this.waiter = waiter;
}
@Override
public void abort() {}
}
public static class DummySetClusterStateRequest extends SetClusterStateRequest {
DummySetClusterStateRequest(NodeInfo nodeInfo, ClusterState state) {
super(nodeInfo, state.getVersion());
}
}
public static class DummyActivateClusterStateVersionRequest extends ActivateClusterStateVersionRequest {
DummyActivateClusterStateVersionRequest(NodeInfo nodeInfo, int stateVersion) {
super(nodeInfo, stateVersion);
}
}
private final Map<Node, DummyGetNodeStateRequest> getNodeStateRequests = new TreeMap<>();
DummyCommunicator(List<Node> nodeList, Timer timer) {
this.newNodes = nodeList;
this.timer = timer;
}
@Override
public synchronized void getNodeState(NodeInfo node, Waiter<GetNodeStateRequest> waiter) {
DummyGetNodeStateRequest req = new DummyGetNodeStateRequest(node, waiter);
getNodeStateRequests.put(node.getNode(), req);
node.setCurrentNodeStateRequest(req, timer.getCurrentTimeInMillis());
notifyAll();
}
public void propagateOptions(final FleetControllerOptions options) {
}
public boolean setNodeState(Node node, State state, String description) {
return setNodeState(node, new NodeState(node.getType(), state).setDescription(description), "");
}
public boolean setNodeState(Node node, NodeState state, String hostInfo) {
DummyGetNodeStateRequest req = getNodeStateRequests.remove(node);
if (req == null) {
throw new IllegalStateException("Premature set node state - wait for fleet controller to request first: " + node);
}
GetNodeStateRequest.Reply reply = new GetNodeStateRequest.Reply(state.serialize(), hostInfo);
req.setReply(reply);
req.waiter.done(req);
return true;
}
@Override
public void setSystemState(ClusterStateBundle stateBundle, NodeInfo node, Waiter<SetClusterStateRequest> waiter) {
ClusterState baselineState = stateBundle.getBaselineClusterState();
DummySetClusterStateRequest req = new DummySetClusterStateRequest(node, baselineState);
node.setClusterStateVersionBundleSent(stateBundle);
req.setReply(new SetClusterStateRequest.Reply());
if (node.isStorage() || !shouldDeferDistributorClusterStateAcks) {
waiter.done(req);
} else {
deferredClusterStateAcks.add(new Pair<>(waiter, req));
}
}
@Override
public void activateClusterStateVersion(int clusterStateVersion, NodeInfo node, Waiter<ActivateClusterStateVersionRequest> waiter) {
var req = new DummyActivateClusterStateVersionRequest(node, clusterStateVersion);
req.setReply(ActivateClusterStateVersionRequest.Reply.withActualVersion(clusterStateVersion));
waiter.done(req);
}
void sendAllDeferredDistributorClusterStateAcks() {
deferredClusterStateAcks.forEach(reqAndWaiter -> reqAndWaiter.getFirst().done(reqAndWaiter.getSecond()));
deferredClusterStateAcks.clear();
}
void sendPartialDeferredDistributorClusterStateAcks() {
if (deferredClusterStateAcks.isEmpty()) {
throw new IllegalStateException("Tried to send partial ACKs with no ACKs deferred");
}
List<Pair<Waiter<SetClusterStateRequest>, DummySetClusterStateRequest>> toAck =
deferredClusterStateAcks.subList(0, deferredClusterStateAcks.size() - 1);
toAck.forEach(reqAndWaiter -> reqAndWaiter.getFirst().done(reqAndWaiter.getSecond()));
deferredClusterStateAcks.removeAll(toAck);
}
@Override
public void shutdown() {
}
@Override
public boolean updateCluster(ContentCluster cluster, SlobrokListener listener) {
if (newNodes != null) {
List<Node> tmp = newNodes;
for (Node node : tmp)
cluster.clusterInfo().setRpcAddress(node, "foo");
for (NodeInfo info : cluster.getNodeInfos()) {
if (!tmp.contains(info.getNode())) {
info.markRpcAddressOutdated(timer);
listener.handleMissingNode(info);
}
}
newNodes = null;
return true;
}
return false;
}
}
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