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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.ranking;
import ai.vespa.models.evaluation.FunctionEvaluator;
import ai.vespa.models.evaluation.Model;
import ai.vespa.models.evaluation.ModelsEvaluator;
import com.yahoo.api.annotations.Beta;
import com.yahoo.component.AbstractComponent;
import com.yahoo.component.annotation.Inject;
import com.yahoo.filedistribution.fileacquirer.FileAcquirer;
import com.yahoo.vespa.config.search.RankProfilesConfig;
import com.yahoo.vespa.config.search.core.OnnxModelsConfig;
import com.yahoo.vespa.config.search.core.RankingConstantsConfig;
import com.yahoo.vespa.config.search.core.RankingExpressionsConfig;
import java.util.Collection;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import java.util.Set;
import java.util.function.Supplier;
import java.util.logging.Logger;
/**
* proxy for model-evaluation components
* @author arnej
*/
@Beta
public class RankProfilesEvaluator extends AbstractComponent {
private final ModelsEvaluator evaluator;
private static final Logger logger = Logger.getLogger(RankProfilesEvaluator.class.getName());
@Inject
public RankProfilesEvaluator(
RankProfilesConfig rankProfilesConfig,
RankingConstantsConfig constantsConfig,
RankingExpressionsConfig expressionsConfig,
OnnxModelsConfig onnxModelsConfig,
FileAcquirer fileAcquirer)
{
this.evaluator = new ModelsEvaluator(
rankProfilesConfig,
constantsConfig,
expressionsConfig,
onnxModelsConfig,
fileAcquirer);
extractGlobalPhaseData(rankProfilesConfig);
}
public Model modelForRankProfile(String rankProfile) {
var m = evaluator.models().get(rankProfile);
if (m == null) {
throw new IllegalArgumentException("unknown rankprofile: " + rankProfile);
}
return m;
}
public FunctionEvaluator evaluatorForFunction(String rankProfile, String functionName) {
return modelForRankProfile(rankProfile).evaluatorOf(functionName);
}
static record GlobalPhaseData(Supplier<FunctionEvaluator> functionEvaluatorSource,
Collection<String> matchFeaturesToHide,
int rerankCount,
List<String> needInputs) {}
private Map<String, GlobalPhaseData> profilesWithGlobalPhase = new HashMap<>();
Optional<GlobalPhaseData> getGlobalPhaseData(String rankProfile) {
return Optional.ofNullable(profilesWithGlobalPhase.get(rankProfile));
}
private void extractGlobalPhaseData(RankProfilesConfig rankProfilesConfig) {
for (var rp : rankProfilesConfig.rankprofile()) {
String name = rp.name();
Supplier<FunctionEvaluator> functionEvaluatorSource = null;
int rerankCount = -1;
List<String> needInputs = null;
Set<String> namesToHide = new HashSet<>();
for (var prop : rp.fef().property()) {
if (prop.name().equals("vespa.globalphase.rerankcount")) {
rerankCount = Integer.valueOf(prop.value());
}
if (prop.name().equals("vespa.rank.globalphase")) {
var model = modelForRankProfile(name);
functionEvaluatorSource = () -> model.evaluatorOf("globalphase");
var evaluator = functionEvaluatorSource.get();
needInputs = List.copyOf(evaluator.function().arguments());
}
if (prop.name().equals("vespa.hidden.matchfeature")) {
namesToHide.add(prop.value());
}
}
if (functionEvaluatorSource != null && needInputs != null) {
profilesWithGlobalPhase.put(name, new GlobalPhaseData(functionEvaluatorSource, namesToHide, rerankCount, needInputs));
}
}
}
}
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