Files
wlan-cloud-lib-cppkafka/src/producer.cpp
2017-04-23 11:01:21 -07:00

99 lines
3.6 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.
*
*/
#include <errno.h>
#include "producer.h"
#include "exceptions.h"
using std::move;
using std::string;
using std::chrono::milliseconds;
namespace cppkafka {
Producer::Producer(Configuration config)
: KafkaHandleBase(move(config)) {
char error_buffer[512];
auto config_handle = get_configuration().get_handle();
rd_kafka_conf_set_opaque(config_handle, this);
rd_kafka_t* ptr = rd_kafka_new(RD_KAFKA_PRODUCER,
rd_kafka_conf_dup(config_handle),
error_buffer, sizeof(error_buffer));
if (!ptr) {
throw Exception("Failed to create producer handle: " + string(error_buffer));
}
rd_kafka_set_log_level(ptr, 7);
set_handle(ptr);
set_payload_policy(Producer::COPY_PAYLOAD);
}
void Producer::set_payload_policy(PayloadPolicy policy) {
message_payload_policy_ = policy;
}
Producer::PayloadPolicy Producer::get_payload_policy() const {
return message_payload_policy_;
}
void Producer::produce(const MessageBuilder& builder) {
const Buffer& payload = builder.payload();
const Buffer& key = builder.key();
const int policy = static_cast<int>(message_payload_policy_);
auto result = rd_kafka_producev(get_handle(),
RD_KAFKA_V_TOPIC(builder.topic().data()),
RD_KAFKA_V_PARTITION(builder.partition()),
RD_KAFKA_V_MSGFLAGS(policy),
RD_KAFKA_V_TIMESTAMP(builder.timestamp().count()),
RD_KAFKA_V_KEY((void*)key.get_data(), key.get_size()),
RD_KAFKA_V_VALUE((void*)payload.get_data(), payload.get_size()),
RD_KAFKA_V_OPAQUE(builder.user_data()),
RD_KAFKA_V_END);
check_error(result);
}
int Producer::poll() {
return poll(get_timeout());
}
int Producer::poll(milliseconds timeout) {
return rd_kafka_poll(get_handle(), timeout.count());
}
void Producer::flush() {
flush(get_timeout());
}
void Producer::flush(milliseconds timeout) {
auto result = rd_kafka_flush(get_handle(), timeout.count());
check_error(result);
}
} // cppkafka