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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.
*/
#ifndef LIBMINIFI_INCLUDE_IO_NETWORKPRIORITIZER_H_
#define LIBMINIFI_INCLUDE_IO_NETWORKPRIORITIZER_H_
#include <iostream>
#include <memory>
namespace org {
namespace apache {
namespace nifi {
namespace minifi {
namespace io {
class NetworkInterface;
class NetworkPrioritizer {
public:
virtual ~NetworkPrioritizer() {
}
virtual NetworkInterface &&getInterface(uint32_t size) = 0;
protected:
friend class NetworkInterface;
virtual void reduce_tokens(uint32_t size) = 0;
};
class NetworkInterface {
public:
NetworkInterface() : prioritizer_(nullptr){
}
virtual ~NetworkInterface(){
}
explicit NetworkInterface(const std::string &ifc, const std::shared_ptr<NetworkPrioritizer> &prioritizer)
: ifc_(ifc),
prioritizer_(prioritizer) {
}
explicit NetworkInterface(const NetworkInterface &&other)
: ifc_(std::move(other.ifc_)),
prioritizer_(std::move(other.prioritizer_)) {
}
std::string getInterface() const {
return ifc_;
}
void log_write(uint32_t size) {
if (nullptr != prioritizer_) {
prioritizer_->reduce_tokens(size);
}
}
void log_read(uint32_t size) {
if (nullptr != prioritizer_) {
prioritizer_->reduce_tokens(size);
}
}
NetworkInterface &operator=(const NetworkInterface &&other) {
ifc_ = std::move(other.ifc_);
prioritizer_ = std::move(other.prioritizer_);
return *this;
}
private:
friend class NetworkPrioritizer;
std::string ifc_;
std::shared_ptr<NetworkPrioritizer> prioritizer_;
};
class NetworkPrioritizerFactory {
public:
static std::shared_ptr<NetworkPrioritizerFactory> getInstance() {
static std::shared_ptr<NetworkPrioritizerFactory> fa = std::make_shared<NetworkPrioritizerFactory>();
return fa;
}
int setPrioritizer(const std::shared_ptr<NetworkPrioritizer> &prioritizer) {
if (np_ != nullptr)
return -1;
np_ = prioritizer;
return 0;
}
std::shared_ptr<NetworkPrioritizer> getPrioritizer() {
return np_;
}
private:
std::shared_ptr<NetworkPrioritizer> np_;
};
} /* namespace io */
} /* namespace minifi */
} /* namespace nifi */
} /* namespace apache */
} /* namespace org */
#endif /* LIBMINIFI_INCLUDE_IO_NETWORKPRIORITIZER_H_ */