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// Copyright (C) 2020 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_TOKENIZED_DOCUMENT_H_
#define ICING_STORE_TOKENIZED_DOCUMENT_H_
#include <cstdint>
#include <string>
#include <vector>
#include "icing/text_classifier/lib3/utils/base/statusor.h"
#include "icing/proto/document.pb.h"
#include "icing/schema/joinable-property.h"
#include "icing/schema/schema-store.h"
#include "icing/schema/section.h"
#include "icing/tokenization/language-segmenter.h"
namespace icing {
namespace lib {
struct TokenizedSection {
SectionMetadata metadata;
std::vector<std::string_view> token_sequence;
TokenizedSection(SectionMetadata&& metadata_in,
std::vector<std::string_view>&& token_sequence_in)
: metadata(std::move(metadata_in)),
token_sequence(std::move(token_sequence_in)) {}
};
class TokenizedDocument {
public:
static libtextclassifier3::StatusOr<TokenizedDocument> Create(
const SchemaStore* schema_store,
const LanguageSegmenter* language_segmenter, DocumentProto document);
const DocumentProto& document() const { return document_; }
int32_t num_string_tokens() const {
int32_t num_string_tokens = 0;
for (const TokenizedSection& section : tokenized_string_sections_) {
num_string_tokens += section.token_sequence.size();
}
return num_string_tokens;
}
const std::vector<TokenizedSection>& tokenized_string_sections() const {
return tokenized_string_sections_;
}
const std::vector<Section<int64_t>>& integer_sections() const {
return integer_sections_;
}
const std::vector<JoinableProperty<std::string_view>>&
qualified_id_join_properties() const {
return joinable_property_group_.qualified_id_properties;
}
private:
// Use TokenizedDocument::Create() to instantiate.
explicit TokenizedDocument(
DocumentProto&& document,
std::vector<TokenizedSection>&& tokenized_string_sections,
std::vector<Section<int64_t>>&& integer_sections,
JoinablePropertyGroup&& joinable_property_group)
: document_(std::move(document)),
tokenized_string_sections_(std::move(tokenized_string_sections)),
integer_sections_(std::move(integer_sections)),
joinable_property_group_(std::move(joinable_property_group)) {}
DocumentProto document_;
std::vector<TokenizedSection> tokenized_string_sections_;
std::vector<Section<int64_t>> integer_sections_;
JoinablePropertyGroup joinable_property_group_;
};
} // namespace lib
} // namespace icing
#endif // ICING_STORE_TOKENIZED_DOCUMENT_H_
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