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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.search.dispatch.rpc;
import ai.vespa.searchlib.searchprotocol.protobuf.SearchProtocol;
import com.google.common.collect.ImmutableMap;
import com.yahoo.compress.CompressionType;
import com.yahoo.prelude.fastsearch.VespaBackEndSearcher;
import com.yahoo.search.Query;
import com.yahoo.search.Result;
import com.yahoo.search.dispatch.searchcluster.Node;
import org.junit.jupiter.api.Test;
import java.io.IOException;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicReference;
import static com.yahoo.search.dispatch.searchcluster.MockSearchCluster.createDispatchConfig;
import static com.yahoo.search.dispatch.searchcluster.MockSearchCluster.createNodesConfig;
import static org.junit.jupiter.api.Assertions.*;
/**
* @author ollivir
*/
public class RpcSearchInvokerTest {
private final CompressService compressor = new CompressService();
@Test
void testProtobufSerialization() throws IOException {
var compressionTypeHolder = new AtomicReference<CompressionType>();
var payloadHolder = new AtomicReference<byte[]>();
var lengthHolder = new AtomicInteger();
var mockClient = parameterCollectorClient(compressionTypeHolder, payloadHolder, lengthHolder);
var mockPool = new RpcResourcePool(ImmutableMap.of(7, mockClient.createConnection("foo", 123)));
var invoker = new RpcSearchInvoker(mockSearcher(), compressor, new Node("test", 7, "seven", 1), mockPool, 1000);
Query q = new Query("search/?query=test&hits=10&offset=3");
RpcSearchInvoker.RpcContext context = (RpcSearchInvoker.RpcContext) invoker.sendSearchRequest(q, null);
assertEquals(lengthHolder.get(), context.compressedPayload.uncompressedSize());
assertSame(context.compressedPayload.data(), payloadHolder.get());
var bytes = compressor.compressor().decompress(payloadHolder.get(), compressionTypeHolder.get(), lengthHolder.get());
var request = SearchProtocol.SearchRequest.newBuilder().mergeFrom(bytes).build();
assertEquals(10, request.getHits());
assertEquals(3, request.getOffset());
assertFalse(request.getQueryTreeBlob().isEmpty());
var invoker2 = new RpcSearchInvoker(mockSearcher(), compressor, new Node("test", 8, "eight", 1), mockPool, 1000);
RpcSearchInvoker.RpcContext context2 = (RpcSearchInvoker.RpcContext) invoker2.sendSearchRequest(q, context);
assertSame(context, context2);
assertEquals(lengthHolder.get(), context.compressedPayload.uncompressedSize());
assertSame(context.compressedPayload.data(), payloadHolder.get());
}
@Test
void testProtobufSerializationWithMaxHitsSet() throws IOException {
int maxHits = 5;
var compressionTypeHolder = new AtomicReference<CompressionType>();
var payloadHolder = new AtomicReference<byte[]>();
var lengthHolder = new AtomicInteger();
var mockClient = parameterCollectorClient(compressionTypeHolder, payloadHolder, lengthHolder);
var mockPool = new RpcResourcePool(ImmutableMap.of(7, mockClient.createConnection("foo", 123)));
var invoker = new RpcSearchInvoker(mockSearcher(), compressor, new Node("test", 7, "seven", 1), mockPool, maxHits);
Query q = new Query("search/?query=test&hits=10&offset=3");
invoker.sendSearchRequest(q, null);
var bytes = compressor.compressor().decompress(payloadHolder.get(), compressionTypeHolder.get(), lengthHolder.get());
var request = SearchProtocol.SearchRequest.newBuilder().mergeFrom(bytes).build();
assertEquals(maxHits, request.getHits());
}
void verifyConnections(RpcResourcePool rpcResourcePool, int numGroups, int nodesPerGroup, int expectNeedCloseCount) {
var toClose = rpcResourcePool.updateNodes(createNodesConfig(numGroups,nodesPerGroup));
assertEquals(expectNeedCloseCount, toClose.size());
toClose.forEach(item -> {
try {
item.close();
} catch (Exception e) {}
});
for (int nodeId = 0; nodeId < numGroups*nodesPerGroup; nodeId++) {
assertTrue(rpcResourcePool.getConnection(nodeId) instanceof RpcClient.RpcNodeConnection);
}
assertNull(rpcResourcePool.getConnection(numGroups*nodesPerGroup));
}
@Test
void testUpdateOfRpcResourcePool() {
RpcResourcePool rpcResourcePool = new RpcResourcePool(createDispatchConfig(), createNodesConfig(0, 0));
verifyConnections(rpcResourcePool, 3,3, 0);
verifyConnections(rpcResourcePool, 4,4, 6);
verifyConnections(rpcResourcePool, 2,2, 14);
}
private Client parameterCollectorClient(AtomicReference<CompressionType> compressionTypeHolder, AtomicReference<byte[]> payloadHolder,
AtomicInteger lengthHolder) {
return new Client() {
@Override
public void close() { }
@Override
public NodeConnection createConnection(String hostname, int port) {
return new NodeConnection() {
@Override
public void request(String rpcMethod, CompressionType compression, int uncompressedLength, byte[] compressedPayload,
ResponseReceiver responseReceiver, double timeoutSeconds) {
compressionTypeHolder.set(compression);
payloadHolder.set(compressedPayload);
lengthHolder.set(uncompressedLength);
}
@Override
public void close() { }
};
}
};
}
private VespaBackEndSearcher mockSearcher() {
return new VespaBackEndSearcher() {
@Override
protected Result doSearch2(String schema, Query query) {
fail("Unexpected call");
return null;
}
@Override
protected void doPartialFill(Result result, String summaryClass) {
fail("Unexpected call");
}
};
}
}
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