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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "docsum_field_writer_factory.h"
#include <vespa/searchlib/common/matching_elements_fields.h>
#include <vespa/searchsummary/docsummary/copy_dfw.h>
#include <vespa/searchsummary/docsummary/docsum_field_writer.h>
#include <vespa/searchsummary/docsummary/docsum_field_writer_commands.h>
#include <vespa/searchsummary/docsummary/empty_dfw.h>
#include <vespa/searchsummary/docsummary/matched_elements_filter_dfw.h>
#include <vespa/vsm/config/config-vsmfields.h>
using search::MatchingElementsFields;
using search::docsummary::CopyDFW;
using search::docsummary::DocsumFieldWriter;
using search::docsummary::EmptyDFW;
using search::docsummary::IDocsumEnvironment;
using search::docsummary::IQueryTermFilterFactory;
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, const IDocsumEnvironment& env, const IQueryTermFilterFactory& query_term_filter_factory, const vespa::config::search::vsm::VsmfieldsConfig& vsm_fields_config)
: search::docsummary::DocsumFieldWriterFactory(use_v8_geo_positions, env, query_term_filter_factory),
_vsm_fields_config(vsm_fields_config)
{
}
DocsumFieldWriterFactory::~DocsumFieldWriterFactory() = default;
std::unique_ptr<DocsumFieldWriter>
DocsumFieldWriterFactory::create_docsum_field_writer(const vespalib::string& field_name,
const vespalib::string& command,
const vespalib::string& source,
std::shared_ptr<MatchingElementsFields> matching_elems_fields)
{
std::unique_ptr<DocsumFieldWriter> fieldWriter;
using namespace search::docsummary;
if ((command == command::positions) ||
(command == command::abs_distance))
{
fieldWriter = std::make_unique<EmptyDFW>();
} else if ((command == command::attribute) ||
(command == command::attribute_combiner)) {
if (!source.empty() && source != field_name) {
fieldWriter = std::make_unique<CopyDFW>(source);
}
} else if (command == command::geo_position) {
} else if ((command == command::matched_attribute_elements_filter) ||
(command == command::matched_elements_filter)) {
vespalib::string source_field = source.empty() ? field_name : source;
populate_fields(*matching_elems_fields, _vsm_fields_config, source_field);
fieldWriter = MatchedElementsFilterDFW::create(source_field, matching_elems_fields);
} else {
return search::docsummary::DocsumFieldWriterFactory::create_docsum_field_writer(field_name, command, source, matching_elems_fields);
}
return fieldWriter;
}
}
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