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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.searchdefinition;
import com.yahoo.config.application.api.FileRegistry;
import com.yahoo.vespa.model.AbstractService;
import java.util.Collection;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Optional;
import java.util.concurrent.ConcurrentHashMap;
import java.util.function.Function;
/**
* Constant values for ranking/model execution tied to a search definition, or globally to an application
* package
*
* @author bratseth
*/
public class RankingConstants {
private final FileRegistry fileRegistry;
/** The schema this belongs to, or empty if it is global */
private final Optional<Schema> owner;
private final Map<String, RankingConstant> constants = new ConcurrentHashMap<>();
public RankingConstants(FileRegistry fileRegistry, Optional<Schema> owner) {
this.fileRegistry = fileRegistry;
this.owner = owner;
}
public void add(RankingConstant constant) {
constant.validate();
constant.register(fileRegistry);
String name = constant.getName();
RankingConstant prev = constants.putIfAbsent(name, constant);
if ( prev != null )
throw new IllegalArgumentException("Ranking constant '" + name + "' defined twice");
}
public void putIfAbsent(RankingConstant constant) {
constant.validate();
constant.register(fileRegistry);
String name = constant.getName();
constants.putIfAbsent(name, constant);
}
public void computeIfAbsent(String name, Function<? super String, ? extends RankingConstant> createConstant) {
constants.computeIfAbsent(name, key -> {
RankingConstant constant = createConstant.apply(key);
constant.validate();
constant.register(fileRegistry);
return constant;
});
}
/** Returns the ranking constant with the given name, or null if not present */
public RankingConstant get(String name) {
var constant = constants.get(name);
if (constant != null) return constant;
if (owner.isPresent() && owner.get().inherited().isPresent())
return owner.get().inherited().get().rankingConstants().get(name);
return null;
}
/** Returns a read-only map of the ranking constants in this indexed by name */
public Map<String, RankingConstant> asMap() {
// Shortcuts
if (owner.isEmpty() || owner.get().inherited().isEmpty()) return Collections.unmodifiableMap(constants);
if (constants.isEmpty()) return owner.get().inherited().get().rankingConstants().asMap();
var allConstants = new HashMap<>(owner.get().inherited().get().rankingConstants().asMap());
allConstants.putAll(constants);
return Collections.unmodifiableMap(allConstants);
}
/** Initiate sending of these constants to some services over file distribution */
public void sendTo(Collection<? extends AbstractService> services) {
asMap().values().forEach(constant -> constant.sendTo(services));
}
}
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