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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
/*!
* Copyright (c) 2015 by Contributors
* \file name.h
* \brief Name manager to get default names.
*/
#ifndef MXNET_RCPP_NAME_H_
#define MXNET_RCPP_NAME_H_
#include <map>
#include <string>
namespace mxnet {
namespace R {
/*!
* \brief A name manager to attach names
* This is a very simple implementation.
*/
class NameManager {
public:
/*!
* \brief Get a canonical name given name and hint
* \param name The name passed in from parameter
* \param hint The hint used to generate the name.
*/
virtual std::string GetName(const std::string& name,
const std::string& hint) {
if (name.length() != 0) return name;
if (counter_.count(hint) == 0) {
counter_[hint] = 0;
}
size_t cnt = counter_[hint]++;
std::ostringstream os;
os << hint << cnt;
return os.str();
}
/*! \return global singleton of the manager */
static NameManager *Get();
private:
// internal counter
std::map<std::string, size_t> counter_;
};
} // namespace R
} // namespace mxnet
#endif // MXNET_RCPP_NAME_H_