1 files changed, 165 insertions, 0 deletions
diff --git a/desktop/source/deployment/registry/inc/dp_backenddb.hxx b/desktop/source/deployment/registry/inc/dp_backenddb.hxx
new file mode 100644
index 000000000..785201466
--- /dev/null
+++ b/desktop/source/deployment/registry/inc/dp_backenddb.hxx
@@ -0,0 +1,165 @@
+/* -*- 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: */