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https://github.com/Telecominfraproject/wlan-cloud-lib-cppkafka.git
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69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
#ifndef CPP_KAFKA_CONSUMER_H
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#define CPP_KAFKA_CONSUMER_H
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#include <vector>
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#include <string>
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#include <chrono>
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#include <functional>
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#include "kafka_handle_base.h"
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#include "message.h"
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#include "configuration.h"
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namespace cppkafka {
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class TopicConfiguration;
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class Consumer : public KafkaHandleBase {
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public:
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using AssignmentCallback = std::function<void(TopicPartitionList&)>;
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using RevocationCallback = std::function<void(const TopicPartitionList&)>;
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using RebalanceErrorCallback = std::function<void(rd_kafka_resp_err_t)>;
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Consumer(Configuration config);
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Consumer(const Consumer&) = delete;
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Consumer(Consumer&) = delete;
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Consumer& operator=(const Consumer&) = delete;
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Consumer& operator=(Consumer&&) = delete;
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~Consumer();
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void set_assignment_callback(AssignmentCallback callback);
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void set_revocation_callback(RevocationCallback callback);
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void set_rebalance_error_callback(RebalanceErrorCallback callback);
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void subscribe(const std::vector<std::string>& topics);
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void unsubscribe();
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void assign(const TopicPartitionList& topic_partitions);
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void unassign();
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void close();
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void commit(const Message& msg);
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void async_commit(const Message& msg);
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void commit(const TopicPartitionList& topic_partitions);
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void async_commit(const TopicPartitionList& topic_partitions);
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TopicPartitionList get_offsets_committed(const TopicPartitionList& topic_partitions);
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TopicPartitionList get_offsets_position(const TopicPartitionList& topic_partitions);
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TopicPartitionList get_subscription();
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TopicPartitionList get_assignment();
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const Configuration& get_configuration() const;
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Message poll();
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private:
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static void rebalance_proxy(rd_kafka_t *handle, rd_kafka_resp_err_t error,
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rd_kafka_topic_partition_list_t *partitions, void *opaque);
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void commit(const Message& msg, bool async);
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void commit(const TopicPartitionList& topic_partitions, bool async);
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void handle_rebalance(rd_kafka_resp_err_t err, TopicPartitionList& topic_partitions);
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AssignmentCallback assignment_callback_;
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RevocationCallback revocation_callback_;
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RebalanceErrorCallback rebalance_error_callback_;
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Configuration config_;
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};
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} // cppkafka
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#endif // CPP_KAFKA_CONSUMER_H
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