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// Copyright 2018 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package ai.vespa.models.evaluation;
import com.yahoo.config.subscription.ConfigGetter;
import com.yahoo.config.subscription.FileSource;
import com.yahoo.path.Path;
import com.yahoo.searchlib.rankingexpression.ExpressionFunction;
import com.yahoo.tensor.Tensor;
import com.yahoo.tensor.TensorType;
import com.yahoo.vespa.config.search.RankProfilesConfig;
import com.yahoo.vespa.config.search.core.RankingConstantsConfig;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Logger;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
/**
* Helper for testing model import and evaluation
*
* @author bratseth
*/
public class ModelTester {
private final Map<String, Model> models;
public ModelTester(String modelConfigDirectory) {
models = createModels(modelConfigDirectory);
}
public Map<String, Model> models() { return models; }
private static Map<String, Model> createModels(String path) {
Path configDir = Path.fromString(path);
RankProfilesConfig config = new ConfigGetter<>(new FileSource(configDir.append("rank-profiles.cfg").toFile()),
RankProfilesConfig.class).getConfig("");
RankingConstantsConfig constantsConfig = new ConfigGetter<>(new FileSource(configDir.append("ranking-constants.cfg").toFile()),
RankingConstantsConfig.class).getConfig("");
return new RankProfilesConfigImporterWithMockedConstants().importFrom(config, constantsConfig);
}
public void assertFunction(String name, String expression, Model model) {
assertNotNull("Model is present in config", model);
ExpressionFunction function = model.function(name);
assertNotNull("Function '" + name + "' is in " + model, function);
assertEquals(name, function.getName());
assertEquals(expression, function.getBody().getRoot().toString());
}
public void assertBoundFunction(String name, String expression, Model model) {
ExpressionFunction function = model.referencedFunctions().get(FunctionReference.fromSerial(name).get());
assertNotNull("Function '" + name + "' is present", function);
assertEquals(name, function.getName());
assertEquals(expression, function.getBody().getRoot().toString());
}
/** Allows us to provide canned tensor constants during import since file distribution does not work in tests */
private static class RankProfilesConfigImporterWithMockedConstants extends RankProfilesConfigImporter {
private static final Logger log = Logger.getLogger(RankProfilesConfigImporterWithMockedConstants.class.getName());
Map<String, Tensor> constants = new HashMap<>();
@Override
Tensor readTensorFromFile(String name, TensorType type, String fileReference) {
if ( ! constants.containsKey(name)) {
log.warning("Missing a mocked tensor constant for '" + name + "': Returning an empty tensor");
return Tensor.from(type, "{}");
}
return constants.get(name);
}
}
}
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