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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 "documentretrieverbase.h"
#include <vespa/vespalib/stllike/hash_map.h>
namespace search {
struct IDocumentMetaStore;
class IAttributeManager;
class IDocumentStore;
}
namespace search::index { class Schema; }
namespace proton {
struct IFieldInfo {
virtual ~IFieldInfo() = default;
virtual bool isFieldAttribute(const document::Field & field) const = 0;
};
class FieldSetAttributeDB {
public:
FieldSetAttributeDB(const IFieldInfo & fieldInfo);
~FieldSetAttributeDB();
bool areAllFieldsAttributes(uint64_t key, const document::Field::Set & set) const;
private:
using FieldSetAttributeMap = vespalib::hash_map<uint64_t, bool>;
const IFieldInfo & _fieldInfo;
mutable FieldSetAttributeMap _isFieldSetAttributeOnly;
mutable std::mutex _lock;
};
class DocumentRetriever : public DocumentRetrieverBase,
public IFieldInfo {
public:
using PositionFields = std::vector<std::pair<const document::Field *, vespalib::string>>;
DocumentRetriever(const DocTypeName &docTypeName,
const document::DocumentTypeRepo &repo,
const search::index::Schema &schema,
const IDocumentMetaStoreContext &meta_store,
const search::IAttributeManager &attr_manager,
const search::IDocumentStore &doc_store);
~DocumentRetriever() override;
document::Document::UP getFullDocument(search::DocumentIdT lid) const override;
void visitDocuments(const LidVector & lids, search::IDocumentVisitor & visitor, ReadConsistency) const override;
DocumentUP getPartialDocument(search::DocumentIdT lid, const document::DocumentId &, const document::FieldSet &) const override;
void populate(search::DocumentIdT lid, document::Document & doc) const;
bool needFetchFromDocStore(const document::FieldSet &) const;
private:
void populate(search::DocumentIdT lid, document::Document & doc, const document::Field::Set & attributeFields) const;
bool isFieldAttribute(const document::Field & field) const override;
const search::index::Schema &_schema;
const search::IAttributeManager &_attr_manager;
const search::IDocumentStore &_doc_store;
PositionFields _possiblePositionFields;
document::Field::Set _attributeFields;
bool _areAllFieldsAttributes;
FieldSetAttributeDB _fieldSetAttributeInfo;
const search::IAttributeManager * getAttrMgr() const override;
};
} // namespace proton
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