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76 lines
2.1 KiB
C++
76 lines
2.1 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of clio: https://github.com/XRPLF/clio
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Copyright (c) 2023, the clio developers.
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Permission to use, copy, modify, and distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#pragma once
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#include <boost/iostreams/filtering_stream.hpp>
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#include <string>
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namespace util::prometheus {
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/**
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* @brief A stream that can optionally compress its data
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*/
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class OStream {
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public:
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/**
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* @brief Construct a new OStream object
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*
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* @param compressionEnabled Whether to compress the data
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*/
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OStream(bool compressionEnabled);
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OStream(OStream const&) = delete;
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OStream(OStream&&) = delete;
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~OStream() = default;
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/**
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* @brief Write to the stream
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*
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* @tparam T Type of the value to write
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* @param value The value to write
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* @return The stream
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*/
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template <typename T>
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OStream&
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operator<<(T const& value)
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{
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stream_ << value;
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return *this;
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}
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/**
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* @brief Get the data from the stream.
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*
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* @note This resets the stream and clears the buffer. Stream cannot be used after this.
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*
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* @return The data
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*/
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std::string
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data() &&;
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private:
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bool compressionEnabled_;
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std::string buffer_;
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boost::iostreams::filtering_ostream stream_;
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};
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} // namespace util::prometheus
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