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38 lines
1004 B
C++
38 lines
1004 B
C++
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#pragma once
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#include <DataStreams/IProfilingBlockInputStream.h>
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#include <Interpreters/Context.h>
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#include <Storages/Kafka/ReadBufferFromKafkaConsumer.h>
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namespace DB
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{
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class StorageKafka;
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class KafkaBlockInputStream : public IProfilingBlockInputStream
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{
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public:
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KafkaBlockInputStream(StorageKafka & storage_, const Context & context_, const String & schema, size_t max_block_size_);
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~KafkaBlockInputStream() override;
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String getName() const override;
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Block readImpl() override;
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Block getHeader() const override;
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void readPrefixImpl() override;
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void readSuffixImpl() override;
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private:
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StorageKafka & storage;
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ConsumerPtr consumer;
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Context context;
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size_t max_block_size;
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Block sample_block;
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std::unique_ptr<ReadBufferFromKafkaConsumer> read_buf;
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BlockInputStreamPtr reader;
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bool finalized = false;
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// Return true if consumer has been claimed by the stream
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bool hasClaimed() { return consumer != nullptr; }
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};
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} // namespace DB
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