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wlan-cloud-lib-cppkafka/include/cppkafka/message.h
2016-06-05 18:19:23 -07:00

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2.5 KiB
C++

/*
* Copyright (c) 2016, Matias Fontanini
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
#ifndef CPPKAFKA_MESSAGE_H
#define CPPKAFKA_MESSAGE_H
#include <memory>
#include <cstdint>
#include <librdkafka/rdkafka.h>
#include "buffer.h"
#include "topic.h"
namespace cppkafka {
class Message {
public:
static Message make_non_owning(rd_kafka_message_t* handle);
Message();
Message(rd_kafka_message_t* handle);
Message(const Message&) = delete;
Message(Message&& rhs) = default;
Message& operator=(const Message&) = delete;
Message& operator=(Message&& rhs) = default;
bool has_error() const;
rd_kafka_resp_err_t get_error() const;
std::string get_topic() const;
int get_partition() const;
const Buffer& get_payload() const;
const Buffer& get_key() const;
int64_t get_offset() const;
void* private_data();
explicit operator bool() const;
rd_kafka_message_t* get_handle() const;
private:
using HandlePtr = std::unique_ptr<rd_kafka_message_t, decltype(&rd_kafka_message_destroy)>;
struct NonOwningTag { };
Message(rd_kafka_message_t* handle, NonOwningTag);
Message(HandlePtr handle);
HandlePtr handle_;
Buffer payload_;
Buffer key_;
};
} // cppkafka
#endif // CPPKAFKA_MESSAGE_H