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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.
*/
/**
* \file Streamable.h
*/
#ifndef tests_storePerftools_common_Streamable_h_
#define tests_storePerftools_common_Streamable_h_
#include <iostream>
namespace tests {
namespace storePerftools {
namespace common {
/**
* \brief Abstract class which provides the mechanisms to stream
*
* An abstract class which provides stream functions. The toStream() function must be implemented by subclasses,
* and is used by the remaining functions. For convenience, toString() returns a std::string object.
*/
class Streamable
{
public:
/**
* \brief Virtual destructor
*/
virtual ~Streamable() {}
/***
* \brief Stream some representation of the object to an output stream
*
* \param os Output stream to which the class data is to be streamed
*/
virtual void toStream(std::ostream& os = std::cout) const = 0;
/**
* \brief Creates a string representation of the test parameters
*
* Convenience feature which creates and returns a std::string object containing the content of toStream().
*
* \return Content of toStream()
*/
std::string toString() const;
/**
* \brief Stream the object to an output stream
*/
friend std::ostream& operator<<(std::ostream& os,
const Streamable& s);
/**
* \brief Stream the object to an output stream through an object pointer
*/
friend std::ostream& operator<<(std::ostream& os,
const Streamable* sPtr);
};
}}} // namespace tests::storePerftools::common
#endif // tests_storePerftools_common_Streamable_h_
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