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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "docsum_field_writer_factory.h"
#include <vespa/searchsummary/docsummary/copy_dfw.h>
#include <vespa/searchsummary/docsummary/docsum_field_writer.h>
#include <vespa/searchsummary/docsummary/empty_dfw.h>
#include <vespa/searchsummary/docsummary/matched_elements_filter_dfw.h>
#include <vespa/searchlib/common/matching_elements_fields.h>
#include <vespa/vsm/config/config-vsmfields.h>
using search::MatchingElementsFields;
using search::docsummary::CopyDFW;
using search::docsummary::EmptyDFW;
using search::docsummary::IDocsumEnvironment;
using search::docsummary::DocsumFieldWriter;
using search::docsummary::MatchedElementsFilterDFW;
using vespa::config::search::vsm::VsmfieldsConfig;
namespace vsm {
namespace {
void populate_fields(MatchingElementsFields& fields, VsmfieldsConfig& fields_config, const vespalib::string& field_name)
{
vespalib::string prefix = field_name + ".";
for (const auto& spec : fields_config.fieldspec) {
if (spec.name.substr(0, prefix.size()) == prefix) {
fields.add_mapping(field_name, spec.name);
}
if (spec.name == field_name) {
fields.add_field(field_name);
}
}
}
}
DocsumFieldWriterFactory::DocsumFieldWriterFactory(bool use_v8_geo_positions, IDocsumEnvironment& env, const vespa::config::search::vsm::VsmfieldsConfig& vsm_fields_config)
: search::docsummary::DocsumFieldWriterFactory(use_v8_geo_positions, env),
_vsm_fields_config(vsm_fields_config)
{
}
DocsumFieldWriterFactory::~DocsumFieldWriterFactory() = default;
std::unique_ptr<DocsumFieldWriter>
DocsumFieldWriterFactory::create_docsum_field_writer(const vespalib::string& fieldName, const vespalib::string& overrideName, const vespalib::string& argument, bool& rc)
{
std::unique_ptr<DocsumFieldWriter> fieldWriter;
if ((overrideName == "staticrank") ||
(overrideName == "ranklog") ||
(overrideName == "label") ||
(overrideName == "project") ||
(overrideName == "positions") ||
(overrideName == "absdist") ||
(overrideName == "subproject"))
{
fieldWriter = std::make_unique<EmptyDFW>();
rc = true;
} else if ((overrideName == "attribute") ||
(overrideName == "attributecombiner")) {
if (!argument.empty() && argument != fieldName) {
fieldWriter = std::make_unique<CopyDFW>(argument);
}
rc = true;
} else if (overrideName == "geopos") {
rc = true;
} else if ((overrideName == "matchedattributeelementsfilter") ||
(overrideName == "matchedelementsfilter")) {
vespalib::string source_field = argument.empty() ? fieldName : argument;
populate_fields(*_matching_elems_fields, _vsm_fields_config, source_field);
fieldWriter = MatchedElementsFilterDFW::create(source_field, _matching_elems_fields);
rc = static_cast<bool>(fieldWriter);
} else {
return search::docsummary::DocsumFieldWriterFactory::create_docsum_field_writer(fieldName, overrideName, argument, rc);
}
return fieldWriter;
}
}
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