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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 <vespa/searchcore/proton/persistenceengine/i_document_retriever.h>
#include <vespa/searchcore/proton/common/doctypename.h>
#include <vespa/document/fieldvalue/document.h>
#include <vespa/vespalib/stllike/lrucache_map.h>
#include <vespa/searchlib/attribute/iattributemanager.h>
#include <mutex>
namespace proton {
class DocumentRetrieverBase : public IDocumentRetriever
{
const DocTypeName &_docTypeName;
const document::DocumentTypeRepo &_repo;
const IDocumentMetaStoreContext &_meta_store;
using SelectCache = vespalib::lrucache_map<vespalib::LruParam<vespalib::string, CachedSelect::SP>>;
mutable SelectCache _selectCache;
mutable std::mutex _lock;
document::Document::UP _emptyDoc;
const bool _hasFields;
protected:
virtual const search::IAttributeManager * getAttrMgr() const { return nullptr; }
const document::DocumentType & getDocumentType() const {
return _emptyDoc->getType();
}
public:
DocumentRetrieverBase(const DocTypeName &docTypeName,
const document::DocumentTypeRepo &repo,
const IDocumentMetaStoreContext &meta_store,
bool hasFields);
~DocumentRetrieverBase() override;
const document::DocumentTypeRepo &getDocumentTypeRepo() const override { return _repo; }
void getBucketMetaData(const storage::spi::Bucket &bucket, search::DocumentMetaData::Vector &result) const override;
search::DocumentMetaData getDocumentMetaData(const document::DocumentId &id) const override;
CachedSelect::SP parseSelect(const vespalib::string &selection) const override;
ReadGuard getReadGuard() const override { return _meta_store.getReadGuard(); }
uint32_t getDocIdLimit() const override { return _meta_store.getReadGuard()->get().getCommittedDocIdLimit(); }
};
} // namespace proton
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