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Added commit for current assignment and message state checks (#53)

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Alex Damian
2018-04-20 18:51:44 -04:00
committed by Matias Fontanini
parent c95d790547
commit 83a963c1db
8 changed files with 62 additions and 30 deletions
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30
include/cppkafka/consumer.h
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@@ -64,14 +64,14 @@ class TopicConfiguration;
* Consumer consumer(config);
*
* // Set the assignment callback
* consumer.set_assignment_callback([&](vector<TopicPartition>& topic_partitions) {
* consumer.set_assignment_callback([&](TopicPartitionList& topic_partitions) {
* // Here you could fetch offsets and do something, altering the offsets on the
* // topic_partitions vector if needed
* cout << "Got assigned " << topic_partitions.size() << " partitions!" << endl;
* });
*
* // Set the revocation callback
* consumer.set_revocation_callback([&](const vector<TopicPartition>& topic_partitions) {
* consumer.set_revocation_callback([&](const TopicPartitionList& topic_partitions) {
* cout << topic_partitions.size() << " partitions revoked!" << endl;
* });
*
@@ -126,7 +126,7 @@ public:
* \brief Sets the topic/partition assignment callback
*
* The Consumer class will use rd_kafka_conf_set_rebalance_cb and will handle the
* rebalance, converting from rdkafka topic partition list handles into vector<TopicPartition>
* rebalance, converting from rdkafka topic partition list handles into TopicPartitionList
* and executing the assignment/revocation/rebalance_error callbacks.
*
* \note You *do not need* to call Consumer::assign with the provided topic parttitions. This
@@ -140,7 +140,7 @@ public:
* \brief Sets the topic/partition revocation callback
*
* The Consumer class will use rd_kafka_conf_set_rebalance_cb and will handle the
* rebalance, converting from rdkafka topic partition list handles into vector<TopicPartition>
* rebalance, converting from rdkafka topic partition list handles into TopicPartitionList
* and executing the assignment/revocation/rebalance_error callbacks.
*
* \note You *do not need* to call Consumer::assign with an empty topic partition list or
@@ -155,7 +155,7 @@ public:
* \brief Sets the rebalance error callback
*
* The Consumer class will use rd_kafka_conf_set_rebalance_cb and will handle the
* rebalance, converting from rdkafka topic partition list handles into vector<TopicPartition>
* rebalance, converting from rdkafka topic partition list handles into TopicPartitionList
* and executing the assignment/revocation/rebalance_error callbacks.
*
* \param callback The rebalance error callback
@@ -192,6 +192,24 @@ public:
* parameter
*/
void unassign();
/**
* \brief Commits the current partition assignment
*
* This translates into a call to rd_kafka_commit with a null partition list.
*
* \remark This function is equivalent to calling commit(get_assignment())
*/
void commit();
/**
* \brief Commits the current partition assignment asynchronously
*
* This translates into a call to rd_kafka_commit with a null partition list.
*
* \remark This function is equivalent to calling async_commit(get_assignment())
*/
void async_commit();
/**
* \brief Commits the given message synchronously
@@ -349,7 +367,7 @@ private:
void close();
void commit(const Message& msg, bool async);
void commit(const TopicPartitionList& topic_partitions, bool async);
void commit(const TopicPartitionList* topic_partitions, bool async);
void handle_rebalance(rd_kafka_resp_err_t err, TopicPartitionList& topic_partitions);
AssignmentCallback assignment_callback_;