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/*
* Copyright (c) 2019 Samsung Electronics Co., Ltd. All Rights Reserved
*
* 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 __MOCO_IMPORT_GRAPH_BUILDER_REGISTRY_H__
#define __MOCO_IMPORT_GRAPH_BUILDER_REGISTRY_H__
#include "moco/Import/GraphBuilder.h"
#include <map>
#include <memory>
#include <string>
namespace moco
{
struct GraphBuilderSource
{
virtual ~GraphBuilderSource() = default;
/**
* @brief Returns registered GraphBuilder pointer for operator (nullptr if not present)
*/
virtual const GraphBuilder *lookup(const std::string &op) const = 0;
};
/**
* @brief Class to return graph builder for TF nodes
*/
class GraphBuilderRegistry final : public GraphBuilderSource
{
public:
GraphBuilderRegistry();
public:
GraphBuilderRegistry(const GraphBuilderSource *parent) : _parent{parent}
{
// DO NOTHING
}
public:
/**
* @brief Returns registered GraphBuilder pointer for operator or
* nullptr if not registered
*/
const GraphBuilder *lookup(const std::string &op) const final
{
if (_builder_map.find(op) == _builder_map.end())
return (_parent == nullptr) ? nullptr : _parent->lookup(op);
return _builder_map.at(op).get();
}
static GraphBuilderRegistry &get()
{
static GraphBuilderRegistry me;
return me;
}
public:
void add(const std::string op, std::unique_ptr<GraphBuilder> &&builder)
{
_builder_map[op] = std::move(builder);
}
private:
const GraphBuilderSource *_parent = nullptr;
private:
std::map<const std::string, std::unique_ptr<GraphBuilder>> _builder_map;
};
} // namespace mono
#endif // __MOCO_IMPORT_GRAPH_BUILDER_REGISTRY_H__
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