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
  24 namespace connectivity
  25 {
  26     using namespace ::com::sun::star::uno;
  27     using namespace ::com::sun::star::sdbc;
  28     using namespace ::com::sun::star::lang;
  29     using namespace ::com::sun::star;
  30
  31     ParameterSubstitution::ParameterSubstitution(const css::uno::Reference< css::uno::XComponentContext >& _rxContext ) : m_xContext(_rxContext)
  32     {
  33     }
  34     void SAL_CALL ParameterSubstitution::initialize( const uno::Sequence< uno::Any >& _aArguments )
  35     {
  36         ::osl::MutexGuard aGuard(m_aMutex);
  37         comphelper::SequenceAsHashMap aArgs(_aArguments);
  38         uno::Reference< sdbc::XConnection > xConnection;
  39         xConnection = aArgs.getUnpackedValueOrDefault("ActiveConnection",xConnection);
  40         m_xConnection = xConnection;
  41     }
  42
  43     OUString SAL_CALL ParameterSubstitution::getImplementationName(  )
  44     {
  45         return "org.openoffice.comp.helper.ParameterSubstitution";
  46     }
  47
  48     sal_Bool SAL_CALL ParameterSubstitution::supportsService( const OUString& _rServiceName )
  49     {
  50         return cppu::supportsService(this, _rServiceName);
  51     }
  52
  53     Sequence< OUString > SAL_CALL ParameterSubstitution::getSupportedServiceNames(  )
  54     {
  55         return { "com.sun.star.sdb.ParameterSubstitution" };
  56     }
  57
  58
  59     OUString SAL_CALL ParameterSubstitution::substituteVariables( const OUString& _sText, sal_Bool /*bSubstRequired*/ )
  60     {
  61         OUString sRet = _sText;
  62         uno::Reference< sdbc::XConnection > xConnection = m_xConnection;
  63         if ( xConnection.is() )
  64         {
  65             try
  66             {
  67                 OSQLParser aParser( m_xContext );
  68                 OUString sErrorMessage;
  69                 std::unique_ptr<OSQLParseNode> pNode = aParser.parseTree(sErrorMessage,_sText);
  70                 if(pNode)
  71                 {   // special handling for parameters
  72                     OSQLParseNode::substituteParameterNames(pNode.get());
  73                     OUString sNewSql;
  74                     pNode->parseNodeToStr( sNewSql, xConnection );
  75                     sRet = sNewSql;
  76                 }
  77             }
  78             catch(const Exception&)
  79             {
  80             }
  81         }
  82         return sRet;
  83     }
  84
  85     OUString SAL_CALL ParameterSubstitution::reSubstituteVariables( const OUString& _sText )
  86     {
  87         return _sText;
  88     }
  89
  90     OUString SAL_CALL ParameterSubstitution::getSubstituteVariableValue( const OUString& /*variable*/ )
  91     {
  92         throw container::NoSuchElementException();
  93     }
  94
  95
  96 } // connectivity
  97
  98 extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
  99 connectivity_dbtools_ParameterSubstitution_get_implementation(
 100     css::uno::XComponentContext* context, css::uno::Sequence<css::uno::Any> const&)
 101 {
 102     return cppu::acquire(new connectivity::ParameterSubstitution(context));
 103 }
 104
 105 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */