/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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// Helper utilities for testing Annotator.
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#ifndef LIBTEXTCLASSIFIER_UTILS_TESTING_ANNOTATOR_H_
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#define LIBTEXTCLASSIFIER_UTILS_TESTING_ANNOTATOR_H_
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#include <memory>
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#include <string>
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#include "annotator/model_generated.h"
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#include "annotator/types.h"
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#include "flatbuffers/flatbuffers.h"
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namespace libtextclassifier3 {
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// Loads FlatBuffer model, unpacks it and passes it to the visitor_fn so that it
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// can modify it. Afterwards the modified unpacked model is serialized back to a
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// flatbuffer.
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template <typename Fn>
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std::string ModifyAnnotatorModel(const std::string& model_flatbuffer,
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Fn visitor_fn) {
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std::unique_ptr<ModelT> unpacked_model =
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UnPackModel(model_flatbuffer.c_str());
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visitor_fn(unpacked_model.get());
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flatbuffers::FlatBufferBuilder builder;
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FinishModelBuffer(builder, Model::Pack(builder, unpacked_model.get()));
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return std::string(reinterpret_cast<char*>(builder.GetBufferPointer()),
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builder.GetSize());
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}
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} // namespace libtextclassifier3
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#endif // LIBTEXTCLASSIFIER_UTILS_TESTING_ANNOTATOR_H_
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