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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.search.predicate.benchmarks;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.SerializationFeature;
import com.yahoo.search.predicate.Config;
import com.yahoo.search.predicate.Hit;
import com.yahoo.search.predicate.PredicateIndex;
import com.yahoo.search.predicate.PredicateIndexBuilder;
import com.yahoo.search.predicate.PredicateQuery;
import com.yahoo.search.predicate.serialization.PredicateQuerySerializer;
import com.yahoo.search.predicate.utils.VespaFeedParser;
import com.yahoo.search.predicate.utils.VespaQueryParser;
import io.airlift.airline.Arguments;
import io.airlift.airline.Command;
import io.airlift.airline.HelpOption;
import io.airlift.airline.Option;
import io.airlift.airline.SingleCommand;
import javax.inject.Inject;
import java.io.BufferedInputStream;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.FileInputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.TreeMap;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.stream.Stream;
import static com.yahoo.search.predicate.benchmarks.HitsVerificationBenchmark.BenchmarkArguments.*;
import static java.util.stream.Collectors.joining;
/**
* A test that runs outputs the hits for each query into result file.
*
* @author bjorncs
*/
public class HitsVerificationBenchmark {
public static void main(String[] rawArgs) throws IOException {
Optional<BenchmarkArguments> wrappedArgs = getArguments(rawArgs);
if (!wrappedArgs.isPresent()) return;
BenchmarkArguments args = wrappedArgs.get();
Map<String, Object> output = new TreeMap<>();
addArgsToOutput(output, args);
Config config = new Config.Builder()
.setArity(args.arity)
.setUseConjunctionAlgorithm(args.algorithm == Algorithm.CONJUNCTION)
.build();
PredicateIndex index = getIndex(args, config, output);
Stream<PredicateQuery> queries = parseQueries(args.format, args.queryFile);
int totalHits = runQueries(index, queries, args.outputFile);
output.put("Total hits", totalHits);
writeOutputToStandardOut(output);
}
private static PredicateIndex getIndex(BenchmarkArguments args, Config config, Map<String, Object> output) throws IOException {
if (args.feedFile != null) {
PredicateIndexBuilder builder = new PredicateIndexBuilder(config);
AtomicInteger idCounter = new AtomicInteger();
VespaFeedParser.parseDocuments(
args.feedFile, Integer.MAX_VALUE, p -> builder.indexDocument(idCounter.incrementAndGet(), p));
builder.getStats().putValues(output);
return builder.build();
} else {
try (DataInputStream in = new DataInputStream(new BufferedInputStream(new FileInputStream(args.indexFile)))) {
long start = System.currentTimeMillis();
PredicateIndex index = PredicateIndex.fromInputStream(in);
output.put("Time deserialize index", System.currentTimeMillis() - start);
return index;
}
}
}
private static int runQueries(
PredicateIndex index, Stream<PredicateQuery> queries, String outputFile) throws IOException {
try (BufferedWriter writer = new BufferedWriter(new FileWriter(outputFile, false))) {
AtomicInteger i = new AtomicInteger();
PredicateIndex.Searcher searcher = index.searcher();
return queries.map(searcher::search)
.peek(hits -> {if (i.get() % 500 == 0) {index.rebuildPostingListCache();}})
.mapToInt(hits -> writeHits(i.getAndIncrement(), hits, writer))
.sum();
}
}
private static Stream<PredicateQuery> parseQueries(Format format, String queryFile)
throws IOException {
PredicateQuerySerializer serializer = new PredicateQuerySerializer();
return Files.lines(Paths.get(queryFile))
.map(line ->
format == Format.JSON
? serializer.fromJSON(line)
: VespaQueryParser.parseQueryFromQueryProperties(line));
}
private static int writeHits(int i, Stream<Hit> hitStream, BufferedWriter writer) {
try {
List<Hit> hits = hitStream.toList();
writer.append(Integer.toString(i))
.append(": ")
.append(hits.stream()
.map(hit -> String.format("(%d, 0x%x)", hit.getDocId(), hit.getSubquery()))
.collect(joining(", ", "[", "]")))
.append("\n\n");
return hits.size();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
private static Optional<BenchmarkArguments> getArguments(String[] rawArgs) {
BenchmarkArguments args = SingleCommand.singleCommand(BenchmarkArguments.class).parse(rawArgs);
if (args.helpOption.showHelpIfRequested()) {
return Optional.empty();
}
if (args.feedFile == null && args.indexFile == null) {
System.err.println("Provide either a feed file or index file.");
return Optional.empty();
}
return Optional.of(args);
}
private static void addArgsToOutput(Map<String, Object> output, BenchmarkArguments args) {
output.put("Arity", args.arity);
output.put("Algorithm", args.algorithm);
output.put("Query format", args.format);
output.put("Feed file", args.feedFile);
output.put("Query file", args.queryFile);
output.put("Output file", args.outputFile);
output.put("Index file", args.indexFile);
}
private static void writeOutputToStandardOut(Map<String, Object> output) {
try {
ObjectMapper objectMapper = new ObjectMapper();
objectMapper.enable(SerializationFeature.INDENT_OUTPUT);
objectMapper.writeValue(System.out, output);
} catch (IOException e) {
throw new RuntimeException(e);
}
}
@Command(name = "hits-verifier",
description = "Java predicate search system test that outputs the returned hits for each query")
public static class BenchmarkArguments {
public enum Format{JSON, VESPA}
public enum Algorithm{CONJUNCTION, INTERVALONLY}
@Option(name = {"-a", "--arity"}, description = "Arity")
public int arity = 2;
@Option(name = {"-al", "--algorithm"}, description = "Algorithm (CONJUNCTION or INTERVALONLY)")
public Algorithm algorithm = Algorithm.INTERVALONLY;
@Option(name = {"-qf", "--query-format"}, description =
"Query format. Valid formats are either 'vespa' (obsolete query property format) or 'json'.")
public Format format = Format.VESPA;
@Option(name = {"-ff", "--feed-file"}, description = "File path to feed file (Vespa XML feed)")
public String feedFile;
@Option(name = {"-if", "--index-file"}, description = "File path to index file (Serialized index)")
public String indexFile;
@Option(name = {"-quf", "--query-file"}, description = "File path to a query file")
public String queryFile;
@Arguments(title = "Output file", description = "File path to output file")
public String outputFile;
@Inject
public HelpOption helpOption;
}
}
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