2018-05-23 20:19:33 +00:00
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#pragma once
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#include <Processors/IProcessor.h>
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namespace DB
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{
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/** Has one input and one output.
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* Simply pull a block from input, transform it, and push it to output.
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*/
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class ISimpleTransform : public IProcessor
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{
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protected:
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InputPort & input;
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OutputPort & output;
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Block current_block;
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2019-02-07 18:51:53 +00:00
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bool has_input = false;
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2018-05-23 20:19:33 +00:00
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bool transformed = false;
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virtual void transform(Block & block) = 0;
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public:
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ISimpleTransform(Block input_header, Block output_header);
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Status prepare() override;
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void work() override;
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InputPort & getInputPort() { return input; }
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OutputPort & getOutputPort() { return output; }
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};
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}
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