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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.clustercontroller.core.rpc;
import com.yahoo.jrt.ErrorCode;
import com.yahoo.jrt.Request;
import com.yahoo.jrt.RequestWaiter;
import com.yahoo.vespa.clustercontroller.core.ActivateClusterStateVersionRequest;
import com.yahoo.vespa.clustercontroller.core.Communicator;
import com.yahoo.vespa.clustercontroller.core.NodeInfo;
/**
* Binds together the reply received for a particular cluster state activation RPC and
* the cluster controller-internal callback handler which expects to receive it.
*/
public class RPCActivateClusterStateVersionWaiter implements RequestWaiter {
private final Communicator.Waiter<ActivateClusterStateVersionRequest> waiter;
private ActivateClusterStateVersionRequest request;
public RPCActivateClusterStateVersionWaiter(Communicator.Waiter<ActivateClusterStateVersionRequest> waiter) {
this.waiter = waiter;
}
public void setRequest(RPCActivateClusterStateVersionRequest request) {
this.request = request;
}
public ActivateClusterStateVersionRequest.Reply getReply(Request req) {
NodeInfo info = request.getNodeInfo();
if (req.isError()) {
return new ActivateClusterStateVersionRequest.Reply(req.errorCode(), req.errorMessage());
} else if (!req.checkReturnTypes("i")) {
return new ActivateClusterStateVersionRequest.Reply(ErrorCode.BAD_REPLY, "Got RPC response with invalid return types from " + info);
}
int actualVersion = req.returnValues().get(0).asInt32();
return ActivateClusterStateVersionRequest.Reply.withActualVersion(actualVersion);
}
@Override
public void handleRequestDone(Request request) {
ActivateClusterStateVersionRequest.Reply reply = getReply(request);
this.request.setReply(reply);
waiter.done(this.request);
}
}
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