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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "i_reprocessing_handler.h"
#include <vespa/searchlib/docstore/idocumentstore.h>
namespace proton {
/**
* Class that is a visitor over a document store and proxies all documents
* to the registered readers and rewriters upon visiting.
*/
class DocumentReprocessingHandler : public IReprocessingHandler,
public search::IDocumentStoreReadVisitor
{
private:
using ReaderVector = std::vector<IReprocessingReader::SP>;
using RewriterVector = std::vector<IReprocessingRewriter::SP>;
class RewriteVisitor : public search::IDocumentStoreRewriteVisitor
{
private:
DocumentReprocessingHandler &_handler;
public:
RewriteVisitor(DocumentReprocessingHandler &handler) : _handler(handler) {}
// Implements search::IDocumentStoreRewriteVisitor
virtual void visit(uint32_t lid, const std::shared_ptr<document::Document> &doc) override {
_handler.rewriteVisit(lid, doc);
}
};
ReaderVector _readers;
RewriterVector _rewriters;
RewriteVisitor _rewriteVisitor;
uint32_t _docIdLimit;
void rewriteVisit(uint32_t lid, const std::shared_ptr<document::Document> &doc);
public:
DocumentReprocessingHandler(uint32_t docIdLimit);
~DocumentReprocessingHandler();
bool hasReaders() const {
return !_readers.empty();
}
bool hasRewriters() const {
return !_rewriters.empty();
}
bool hasProcessors() const {
return hasReaders() || hasRewriters();
}
search::IDocumentStoreRewriteVisitor &getRewriteVisitor() {
return _rewriteVisitor;
}
// Implements IReprocessingHandler
virtual void addReader(const IReprocessingReader::SP &reader) override {
_readers.push_back(reader);
}
virtual void addRewriter(const IReprocessingRewriter::SP &rewriter) override {
_rewriters.push_back(rewriter);
}
// Implements search::IDocumentStoreReadVisitor
virtual void visit(uint32_t lid, const std::shared_ptr<document::Document> &doc) override;
virtual void visit(uint32_t lid) override;
void done();
};
} // namespace proton
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