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// Copyright 2019 Oath Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.searchdefinition.processing;
import com.yahoo.config.application.api.DeployLogger;
import com.yahoo.searchdefinition.RankProfileRegistry;
import com.yahoo.searchdefinition.Search;
import com.yahoo.vespa.documentmodel.DocumentSummary;
import com.yahoo.vespa.documentmodel.SummaryField;
import com.yahoo.vespa.documentmodel.SummaryTransform;
import com.yahoo.vespa.model.container.search.QueryProfiles;
import static com.yahoo.searchdefinition.document.ComplexAttributeFieldUtils.isComplexFieldWithOnlyStructFieldAttributes;
import static com.yahoo.searchdefinition.document.ComplexAttributeFieldUtils.isSupportedComplexField;
/**
* Iterates all summary fields with 'matched-elements-only' and adjusts transform (if all struct-fields are attributes)
* and validates that the field type is supported.
*
* @author geirst
*/
public class MatchedElementsOnlyResolver extends Processor {
public MatchedElementsOnlyResolver(Search search, DeployLogger deployLogger, RankProfileRegistry rankProfileRegistry, QueryProfiles queryProfiles) {
super(search, deployLogger, rankProfileRegistry, queryProfiles);
}
@Override
public void process(boolean validate, boolean documentsOnly) {
for (var entry : search.getSummaries().entrySet()) {
var summary = entry.getValue();
for (var field : summary.getSummaryFields()) {
if (field.getTransform().equals(SummaryTransform.MATCHED_ELEMENTS_FILTER)) {
processSummaryField(summary, field, validate);
}
}
}
}
private void processSummaryField(DocumentSummary summary, SummaryField field, boolean validate) {
var sourceField = search.getField(field.getSingleSource());
if (sourceField != null) {
if (isSupportedComplexField(sourceField)) {
if (isComplexFieldWithOnlyStructFieldAttributes(sourceField)) {
field.setTransform(SummaryTransform.MATCHED_ATTRIBUTE_ELEMENTS_FILTER);
}
} else if (validate) {
fail(summary, field, "'matched-elements-only' is not supported for this field type. " +
"Supported field types are array of simple struct, map of primitive type to simple struct, " +
"and map of primitive type to primitive type");
}
}
// else case is handled in SummaryFieldsMustHaveValidSource
}
private void fail(DocumentSummary summary, SummaryField field, String msg) {
throw new IllegalArgumentException(formatError(search, summary, field, msg));
}
private String formatError(Search search, DocumentSummary summary, SummaryField field, String msg) {
return "For search '" + search.getName() + "', document summary '" + summary.getName()
+ "', summary field '" + field.getName() + "': " + msg;
}
}
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