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// Copyright 2019 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.search.dispatch.rpc;
import com.yahoo.prelude.Pong;
import com.yahoo.prelude.fastsearch.DocumentDatabase;
import com.yahoo.prelude.fastsearch.VespaBackEndSearcher;
import com.yahoo.processing.request.CompoundName;
import com.yahoo.search.Query;
import com.yahoo.search.Result;
import com.yahoo.search.cluster.ClusterMonitor;
import com.yahoo.search.dispatch.Dispatcher;
import com.yahoo.search.dispatch.FillInvoker;
import com.yahoo.search.dispatch.InvokerFactory;
import com.yahoo.search.dispatch.SearchInvoker;
import com.yahoo.search.dispatch.searchcluster.Node;
import com.yahoo.search.dispatch.searchcluster.PingFactory;
import com.yahoo.search.dispatch.searchcluster.SearchCluster;
import java.util.Optional;
import java.util.concurrent.Callable;
/**
* @author ollivir
*/
public class RpcInvokerFactory extends InvokerFactory implements PingFactory {
/** Unless turned off this will fill summaries by dispatching directly to search nodes over RPC when possible */
private final static CompoundName dispatchSummaries = new CompoundName("dispatch.summaries");
private final RpcResourcePool rpcResourcePool;
private final boolean dispatchWithProtobuf;
public RpcInvokerFactory(RpcResourcePool rpcResourcePool, SearchCluster searchCluster, boolean dispatchWithProtobuf) {
super(searchCluster);
this.rpcResourcePool = rpcResourcePool;
this.dispatchWithProtobuf = dispatchWithProtobuf;
}
@Override
protected Optional<SearchInvoker> createNodeSearchInvoker(VespaBackEndSearcher searcher, Query query, Node node) {
return Optional.of(new RpcSearchInvoker(searcher, node, rpcResourcePool));
}
@Override
public Optional<FillInvoker> createFillInvoker(VespaBackEndSearcher searcher, Result result) {
Query query = result.getQuery();
boolean summaryNeedsQuery = searcher.summaryNeedsQuery(query);
if(query.properties().getBoolean(Dispatcher.dispatchProtobuf, dispatchWithProtobuf)) {
return Optional.of(new RpcProtobufFillInvoker(rpcResourcePool, searcher.getDocumentDatabase(query), searcher.getServerId(), summaryNeedsQuery));
}
if (query.properties().getBoolean(dispatchSummaries, true) && ! summaryNeedsQuery) {
return Optional.of(new RpcFillInvoker(rpcResourcePool, searcher.getDocumentDatabase(query)));
} else {
return Optional.empty();
}
}
// for testing
public FillInvoker createFillInvoker(DocumentDatabase documentDb) {
return new RpcFillInvoker(rpcResourcePool, documentDb);
}
public void release() {
rpcResourcePool.release();
}
@Override
public Callable<Pong> createPinger(Node node, ClusterMonitor<Node> monitor) {
return new RpcPing(node, monitor, rpcResourcePool);
}
}
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