connectivity/source/commontools/ParameterSubstitution.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19 #include <ParameterSubstitution.hxx>
  20 #include <connectivity/sqlparse.hxx>
  21 #include <comphelper/sequenceashashmap.hxx>
  22 #include <cppuhelper/supportsservice.hxx>
  23 #include <utility>
  24
  25 namespace connectivity
  26 {
  27     using namespace ::com::sun::star::uno;
  28     using namespace ::com::sun::star::sdbc;
  29     using namespace ::com::sun::star::lang;
  30     using namespace ::com::sun::star;
  31
  32     ParameterSubstitution::ParameterSubstitution(css::uno::Reference< css::uno::XComponentContext > _xContext ) : m_xContext(std::move(_xContext))
  33     {
  34     }
  35     void SAL_CALL ParameterSubstitution::initialize( const uno::Sequence< uno::Any >& _aArguments )
  36     {
  37         ::osl::MutexGuard aGuard(m_aMutex);
  38         comphelper::SequenceAsHashMap aArgs(_aArguments);
  39         uno::Reference< sdbc::XConnection > xConnection;
  40         xConnection = aArgs.getUnpackedValueOrDefault(u"ActiveConnection"_ustr,xConnection);
  41         m_xConnection = xConnection;
  42     }
  43
  44     OUString SAL_CALL ParameterSubstitution::getImplementationName(  )
  45     {
  46         return u"org.openoffice.comp.helper.ParameterSubstitution"_ustr;
  47     }
  48
  49     sal_Bool SAL_CALL ParameterSubstitution::supportsService( const OUString& _rServiceName )
  50     {
  51         return cppu::supportsService(this, _rServiceName);
  52     }
  53
  54     Sequence< OUString > SAL_CALL ParameterSubstitution::getSupportedServiceNames(  )
  55     {
  56         return { u"com.sun.star.sdb.ParameterSubstitution"_ustr };
  57     }
  58
  59
  60     OUString SAL_CALL ParameterSubstitution::substituteVariables( const OUString& _sText, sal_Bool /*bSubstRequired*/ )
  61     {
  62         OUString sRet = _sText;
  63         uno::Reference< sdbc::XConnection > xConnection = m_xConnection;
  64         if ( xConnection.is() )
  65         {
  66             try
  67             {
  68                 OSQLParser aParser( m_xContext );
  69                 OUString sErrorMessage;
  70                 std::unique_ptr<OSQLParseNode> pNode = aParser.parseTree(sErrorMessage,_sText);
  71                 if(pNode)
  72                 {   // special handling for parameters
  73                     OSQLParseNode::substituteParameterNames(pNode.get());
  74                     OUString sNewSql;
  75                     pNode->parseNodeToStr( sNewSql, xConnection );
  76                     sRet = sNewSql;
  77                 }
  78             }
  79             catch(const Exception&)
  80             {
  81             }
  82         }
  83         return sRet;
  84     }
  85
  86     OUString SAL_CALL ParameterSubstitution::reSubstituteVariables( const OUString& _sText )
  87     {
  88         return _sText;
  89     }
  90
  91     OUString SAL_CALL ParameterSubstitution::getSubstituteVariableValue( const OUString& /*variable*/ )
  92     {
  93         throw container::NoSuchElementException();
  94     }
  95
  96
  97 } // connectivity
  98
  99 extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
 100 connectivity_dbtools_ParameterSubstitution_get_implementation(
 101     css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const&)
 102 {
 103     return cppu::acquire(new connectivity::ParameterSubstitution(context));
 104 }
 105
 106 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */