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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.searchers;
import com.yahoo.search.Query;
import com.yahoo.search.Result;
import com.yahoo.search.Searcher;
import com.yahoo.search.result.ErrorMessage;
import com.yahoo.search.searchchain.Execution;
import com.yahoo.vespa.config.search.AttributesConfig;
import java.util.HashSet;
import java.util.Set;
/**
* Validates that the attribute given as match-phase override is actually a valid numeric attribute
* with fast-search enabled.
*
* @author baldersheim
*/
public class ValidateMatchPhaseSearcher extends Searcher {
private Set<String> validMatchPhaseAttributes = new HashSet<>();
private Set<String> validDiversityAttributes = new HashSet<>();
public ValidateMatchPhaseSearcher(AttributesConfig attributesConfig) {
for (AttributesConfig.Attribute a : attributesConfig.attribute()) {
if (a.fastsearch() &&
(a.collectiontype() == AttributesConfig.Attribute.Collectiontype.SINGLE) && isNumeric(a.datatype())) {
validMatchPhaseAttributes.add(a.name());
}
}
for (AttributesConfig.Attribute a : attributesConfig.attribute()) {
if ((a.collectiontype() == AttributesConfig.Attribute.Collectiontype.SINGLE) &&
((a.datatype() == AttributesConfig.Attribute.Datatype.STRING) || isNumeric(a.datatype()))) {
validDiversityAttributes.add(a.name());
}
}
}
private boolean isNumeric(AttributesConfig.Attribute.Datatype.Enum dt) {
return dt == AttributesConfig.Attribute.Datatype.DOUBLE ||
dt == AttributesConfig.Attribute.Datatype.FLOAT ||
dt == AttributesConfig.Attribute.Datatype.INT8 ||
dt == AttributesConfig.Attribute.Datatype.INT16 ||
dt == AttributesConfig.Attribute.Datatype.INT32 ||
dt == AttributesConfig.Attribute.Datatype.INT64;
}
@Override
public Result search(Query query, Execution execution) {
ErrorMessage e = validate(query);
return (e != null)
? new Result(query, e)
: execution.search(query);
}
private ErrorMessage validate(Query query) {
String attribute = query.getRanking().getMatchPhase().getAttribute();
if ( attribute != null && ! validMatchPhaseAttributes.contains(attribute) ) {
return ErrorMessage.createInvalidQueryParameter("The attribute '" + attribute + "' is not available for match-phase. " +
"It must be a single value numeric attribute with fast-search.");
}
attribute = query.getRanking().getMatchPhase().getDiversity().getAttribute();
if (attribute != null && ! validDiversityAttributes.contains(attribute)) {
return ErrorMessage.createInvalidQueryParameter("The attribute '" + attribute + "' is not available for match-phase diversification. " +
"It must be a single value numeric or string attribute.");
}
return null;
}
}
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