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// Copyright (C) 2021 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef ICING_STORE_SUGGESTION_RESULT_CHECKER_IMPL_H_
#define ICING_STORE_SUGGESTION_RESULT_CHECKER_IMPL_H_
#include "icing/schema/section.h"
#include "icing/store/document-id.h"
#include "icing/store/document-store.h"
#include "icing/store/namespace-id.h"
#include "icing/store/suggestion-result-checker.h"
namespace icing {
namespace lib {
class SuggestionResultCheckerImpl : public SuggestionResultChecker {
public:
explicit SuggestionResultCheckerImpl(
const DocumentStore* document_store, const SchemaStore* schema_store,
std::unordered_set<NamespaceId> target_namespace_ids,
std::unordered_map<NamespaceId, std::unordered_set<DocumentId>>
document_id_filter_map,
std::unordered_set<SchemaTypeId> target_schema_type_ids,
std::unordered_map<SchemaTypeId, SectionIdMask> property_filter_map,
std::string target_section, std::unordered_set<DocumentId> search_base)
: document_store_(*document_store),
schema_store_(*schema_store),
target_namespace_ids_(std::move(target_namespace_ids)),
document_id_filter_map_(std::move(document_id_filter_map)),
target_schema_type_ids_(std::move(target_schema_type_ids)),
property_filter_map_(std::move(property_filter_map)),
target_section_(std::move(target_section)),
search_base_(std::move(search_base)) {}
bool MatchesTargetNamespace(NamespaceId namespace_id) const {
return target_namespace_ids_.empty() ||
target_namespace_ids_.find(namespace_id) !=
target_namespace_ids_.end();
}
bool MatchesTargetDocumentIds(NamespaceId namespace_id,
DocumentId document_id) const {
if (document_id_filter_map_.empty()) {
return true;
}
auto document_ids_itr = document_id_filter_map_.find(namespace_id);
// The client doesn't set desired document ids in this namespace, or the
// client doesn't want this document.
return document_ids_itr == document_id_filter_map_.end() ||
document_ids_itr->second.find(document_id) !=
document_ids_itr->second.end();
}
bool MatchesTargetSchemaType(SchemaTypeId schema_type_id) const {
return target_schema_type_ids_.empty() ||
target_schema_type_ids_.find(schema_type_id) !=
target_schema_type_ids_.end();
}
bool MatchesTargetSection(SchemaTypeId schema_type_id,
SectionId section_id) const {
if (target_section_.empty()) {
return true;
}
auto section_metadata_or =
schema_store_.GetSectionMetadata(schema_type_id, section_id);
if (!section_metadata_or.ok()) {
// cannot find the target section metadata.
return false;
}
const SectionMetadata* section_metadata = section_metadata_or.ValueOrDie();
return section_metadata->path == target_section_;
}
bool MatchesSearchBase(DocumentId document_id) const {
return search_base_.empty() ||
search_base_.find(document_id) != search_base_.end();
}
bool MatchesPropertyFilter(SchemaTypeId schema_type_id,
SectionId section_id) const {
if (property_filter_map_.empty()) {
return true;
}
auto section_mask_itr = property_filter_map_.find(schema_type_id);
return section_mask_itr == property_filter_map_.end() ||
(section_mask_itr->second & (UINT64_C(1) << section_id)) != 0;
}
bool BelongsToTargetResults(DocumentId document_id,
SectionId section_id) const override {
// Get the document filter data first.
auto document_filter_data_optional_ =
document_store_.GetAliveDocumentFilterData(document_id);
if (!document_filter_data_optional_) {
// The document doesn't exist.
return false;
}
DocumentFilterData document_filter_data =
document_filter_data_optional_.value();
if (!MatchesTargetNamespace(document_filter_data.namespace_id())) {
return false;
}
if (!MatchesTargetDocumentIds(document_filter_data.namespace_id(),
document_id)) {
return false;
}
if (!MatchesTargetSchemaType(document_filter_data.schema_type_id())) {
return false;
}
if (!MatchesTargetSection(document_filter_data.schema_type_id(),
section_id)) {
return false;
}
if (!MatchesSearchBase(document_id)) {
return false;
}
if (!MatchesPropertyFilter(document_filter_data.schema_type_id(),
section_id)) {
return false;
}
return true;
}
const DocumentStore& document_store_;
const SchemaStore& schema_store_;
std::unordered_set<NamespaceId> target_namespace_ids_;
std::unordered_map<NamespaceId, std::unordered_set<DocumentId>>
document_id_filter_map_;
std::unordered_set<SchemaTypeId> target_schema_type_ids_;
std::unordered_map<SchemaTypeId, SectionIdMask> property_filter_map_;
std::string target_section_;
std::unordered_set<DocumentId> search_base_;
};
} // namespace lib
} // namespace icing
#endif // ICING_STORE_SUGGESTION_RESULT_CHECKER_IMPL_H_
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