connectivity writer driver: initial DatabaseMetaData implementation

With this the list of tables is visible in Data Sources.

Change-Id: I7ee4955c54a76c57f854dba19fd1a6a8ee606089
Reviewed-on: https://gerrit.libreoffice.org/40056Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>

connectivity/Library_writer.mk

@@ -38,6 +38,7 @@ $(eval $(call gb_Library_use_libraries,writer,\
 
 $(eval $(call gb_Library_add_exception_objects,writer,\
 	connectivity/source/drivers/writer/WConnection \
+	connectivity/source/drivers/writer/WDatabaseMetaData \
 	connectivity/source/drivers/writer/WDriver \
 	connectivity/source/drivers/writer/Wservices \
 ))

connectivity/source/drivers/writer/WConnection.cxx

@@ -18,6 +18,7 @@
  */
 
 #include "writer/WConnection.hxx"
+#include "writer/WDatabaseMetaData.hxx"
 #include "writer/WDriver.hxx"
 #include "resource/sharedresources.hxx"
 #include "resource/common_res.hrc"
@@ -194,7 +195,8 @@ uno::Reference< sdbc::XDatabaseMetaData > SAL_CALL OWriterConnection::getMetaDat
     uno::Reference< sdbc::XDatabaseMetaData > xMetaData = m_xMetaData;
     if (!xMetaData.is())
     {
-        SAL_WARN("connectivity.writer", "TODO implement OWriterConnection::getMetaData()");
+        xMetaData = new OWriterDatabaseMetaData(this);
+        m_xMetaData = xMetaData;
     }
 
     return xMetaData;

connectivity/source/inc/writer/WDatabaseMetaData.hxx

+/* -*- 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 .
+ */
+
+#ifndef INCLUDED_CONNECTIVITY_SOURCE_INC_WRITER_WDATABASEMETADATA_HXX
+#define INCLUDED_CONNECTIVITY_SOURCE_INC_WRITER_WDATABASEMETADATA_HXX
+
+#include "file/FDatabaseMetaData.hxx"
+
+namespace connectivity
+{
+namespace writer
+{
+
+class OWriterDatabaseMetaData : public file::ODatabaseMetaData
+{
+    virtual css::uno::Reference< css::sdbc::XResultSet > impl_getTypeInfo_throw() override;
+    virtual OUString SAL_CALL getURL() override;
+    virtual css::uno::Reference< css::sdbc::XResultSet > SAL_CALL getColumns(const css::uno::Any& catalog, const OUString& schemaPattern, const OUString& tableNamePattern, const OUString& columnNamePattern) override;
+    virtual sal_Int32 SAL_CALL getMaxBinaryLiteralLength() override;
+    virtual sal_Int32 SAL_CALL getMaxCharLiteralLength() override;
+    virtual sal_Int32 SAL_CALL getMaxColumnNameLength() override;
+    virtual sal_Int32 SAL_CALL getMaxColumnsInIndex() override;
+    virtual sal_Int32 SAL_CALL getMaxColumnsInTable() override;
+    virtual css::uno::Reference< css::sdbc::XResultSet > SAL_CALL getTables(const css::uno::Any& catalog, const OUString& schemaPattern, const OUString& tableNamePattern, const css::uno::Sequence< OUString >& types) override;
+protected:
+    virtual ~OWriterDatabaseMetaData() override;
+public:
+    OWriterDatabaseMetaData(file::OConnection* pConnection);
+};
+
+} // namespace writer
+} // namespace connectivity
+
+#endif // INCLUDED_CONNECTIVITY_SOURCE_INC_WRITER_WDATABASEMETADATA_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */