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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#pragma once
#include <com/sun/star/uno/Reference.hxx>
#include <rtl/ustring.hxx>
#include <deque>
#include <string_view>
#include <vector>
namespace com::sun::star {
namespace uno {
class XComponentContext;
}
namespace xml::dom {
class XDocument;
class XNode;
}
namespace xml::xpath {
class XXPathAPI;
}
}
namespace dp_registry::backend {
class BackendDb
{
private:
css::uno::Reference<css::xml::dom::XDocument> m_doc;
css::uno::Reference<css::xml::xpath::XXPathAPI> m_xpathApi;
BackendDb(BackendDb const &) = delete;
BackendDb & operator = (BackendDb const &) = delete;
protected:
const css::uno::Reference<css::uno::XComponentContext> m_xContext;
OUString m_urlDb;
protected:
/* caller must make sure that only one thread accesses the function
*/
css::uno::Reference<css::xml::dom::XDocument> const & getDocument();
/* the namespace prefix is "reg" (without quotes)
*/
css::uno::Reference<css::xml::xpath::XXPathAPI> const & getXPathAPI();
void save();
void removeElement(OUString const & sXPathExpression);
css::uno::Reference<css::xml::dom::XNode> getKeyElement(
std::u16string_view url);
void writeSimpleList(
std::deque< OUString> const & list,
std::u16string_view sListTagName,
std::u16string_view sMemberTagName,
css::uno::Reference<css::xml::dom::XNode> const & xParent);
void writeVectorOfPair(
std::vector< std::pair< OUString, OUString > > const & vecPairs,
std::u16string_view sVectorTagName,
std::u16string_view sPairTagName,
std::u16string_view sFirstTagName,
std::u16string_view sSecondTagName,
css::uno::Reference<css::xml::dom::XNode> const & xParent);
void writeSimpleElement(
std::u16string_view sElementName, OUString const & value,
css::uno::Reference<css::xml::dom::XNode> const & xParent);
css::uno::Reference<css::xml::dom::XNode> writeKeyElement(
OUString const & url);
OUString readSimpleElement(
std::u16string_view sElementName,
css::uno::Reference<css::xml::dom::XNode> const & xParent);
std::vector< std::pair< OUString, OUString > >
readVectorOfPair(
css::uno::Reference<css::xml::dom::XNode> const & parent,
std::u16string_view sListTagName,
std::u16string_view sPairTagName,
std::u16string_view sFirstTagName,
std::u16string_view sSecondTagName);
std::deque< OUString> readList(
css::uno::Reference<css::xml::dom::XNode> const & parent,
std::u16string_view sListTagName,
std::u16string_view sMemberTagName);
/* returns the values of one particularly child element of all key elements.
*/
std::vector< OUString> getOneChildFromAllEntries(
std::u16string_view sElementName);
/* returns the namespace which is to be written as xmlns attribute
into the root element.
*/
virtual OUString getDbNSName()=0;
/* return the namespace prefix which is to be registered with the XPath API.
The prefix can then be used in XPath expressions.
*/
virtual OUString getNSPrefix()=0;
/* returns the name of the root element without any namespace prefix.
*/
virtual OUString getRootElementName()=0;
/* returns the name of xml element for each entry
*/
virtual OUString getKeyElementName()=0;
public:
BackendDb(css::uno::Reference<css::uno::XComponentContext> const & xContext,
OUString const & url);
virtual ~BackendDb() {};
void removeEntry(std::u16string_view url);
/* This is called to write the "revoked" attribute to the entry.
This is done when XPackage::revokePackage is called.
*/
void revokeEntry(std::u16string_view url);
/* returns false if the entry does not exist yet.
*/
bool activateEntry(std::u16string_view url);
bool hasActiveEntry(std::u16string_view url);
};
class RegisteredDb: public BackendDb
{
public:
RegisteredDb( css::uno::Reference<css::uno::XComponentContext> const & xContext,
OUString const & url);
void addEntry(OUString const & url);
};
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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