LCOV - code coverage report
Current view: top level - connectivity/source/commontools - predicateinput.cxx (source / functions) Hit Total Coverage
Test: commit 10e77ab3ff6f4314137acd6e2702a6e5c1ce1fae Lines: 46 175 26.3 %
Date: 2014-11-03 Functions: 4 8 50.0 %
Legend: Lines: hit not hit

          Line data    Source code
       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             : 
      20             : 
      21             : #include <connectivity/predicateinput.hxx>
      22             : #include <comphelper/processfactory.hxx>
      23             : #include <comphelper/types.hxx>
      24             : #include <connectivity/dbtools.hxx>
      25             : #include <com/sun/star/i18n/LocaleData.hpp>
      26             : #include <com/sun/star/sdbc/DataType.hpp>
      27             : #include <com/sun/star/sdbc/ColumnValue.hpp>
      28             : #include <com/sun/star/util/NumberFormatter.hpp>
      29             : #include <osl/diagnose.h>
      30             : #include <connectivity/sqlnode.hxx>
      31             : #include <connectivity/PColumn.hxx>
      32             : #include <comphelper/numbers.hxx>
      33             : 
      34             : #include <boost/scoped_ptr.hpp>
      35             : #include <boost/shared_ptr.hpp>
      36             : 
      37             : 
      38             : namespace dbtools
      39             : {
      40             : 
      41             : 
      42             :     using ::com::sun::star::sdbc::XConnection;
      43             :     using ::com::sun::star::util::XNumberFormatsSupplier;
      44             :     using ::com::sun::star::util::NumberFormatter;
      45             :     using ::com::sun::star::util::XNumberFormatter;
      46             :     using ::com::sun::star::uno::UNO_QUERY;
      47             :     using ::com::sun::star::uno::UNO_QUERY_THROW;
      48             :     using ::com::sun::star::uno::XComponentContext;
      49             :     using ::com::sun::star::beans::XPropertySet;
      50             :     using ::com::sun::star::beans::XPropertySetInfo;
      51             :     using ::com::sun::star::lang::Locale;
      52             :     using ::com::sun::star::uno::Exception;
      53             :     using ::com::sun::star::uno::Reference;
      54             :     using ::com::sun::star::i18n::LocaleData;
      55             :     using ::com::sun::star::i18n::XLocaleData;
      56             :     using ::com::sun::star::i18n::LocaleDataItem;
      57             : 
      58             :     using namespace ::com::sun::star::sdbc;
      59             :     using namespace ::connectivity;
      60             : 
      61             :     using ::connectivity::OSQLParseNode;
      62             : 
      63             : 
      64             : 
      65           0 :     static sal_Unicode lcl_getSeparatorChar( const OUString& _rSeparator, sal_Unicode _nFallback )
      66             :     {
      67             :         OSL_ENSURE( !_rSeparator.isEmpty(), "::lcl_getSeparatorChar: invalid separator string!" );
      68             : 
      69           0 :         sal_Unicode nReturn( _nFallback );
      70           0 :         if ( !_rSeparator.isEmpty() )
      71           0 :             nReturn = static_cast< sal_Char >( _rSeparator[0] );
      72           0 :         return nReturn;
      73             :     }
      74             : 
      75             : 
      76             :     //= OPredicateInputController
      77             : 
      78             : 
      79           0 :     bool OPredicateInputController::getSeparatorChars( const Locale& _rLocale, sal_Unicode& _rDecSep, sal_Unicode& _rThdSep ) const
      80             :     {
      81           0 :         _rDecSep = '.';
      82           0 :         _rThdSep = ',';
      83             :         try
      84             :         {
      85           0 :             LocaleDataItem aLocaleData;
      86           0 :             if ( m_xLocaleData.is() )
      87             :             {
      88           0 :                 aLocaleData = m_xLocaleData->getLocaleItem( _rLocale );
      89           0 :                 _rDecSep = lcl_getSeparatorChar( aLocaleData.decimalSeparator, _rDecSep );
      90           0 :                 _rThdSep = lcl_getSeparatorChar( aLocaleData.decimalSeparator, _rThdSep );
      91           0 :                 return true;
      92           0 :             }
      93             :         }
      94           0 :         catch( const Exception& )
      95             :         {
      96             :             OSL_FAIL( "OPredicateInputController::getSeparatorChars: caught an exception!" );
      97             :         }
      98           0 :         return false;
      99             :     }
     100             : 
     101             : 
     102           8 :     OPredicateInputController::OPredicateInputController(
     103             :         const Reference< XComponentContext >& rxContext, const Reference< XConnection >& _rxConnection, const IParseContext* _pParseContext )
     104             :         : m_xConnection( _rxConnection )
     105           8 :         ,m_aParser( rxContext, _pParseContext )
     106             :     {
     107             :         try
     108             :         {
     109             :             // create a number formatter / number formats supplier pair
     110             :             OSL_ENSURE( rxContext.is(), "OPredicateInputController::OPredicateInputController: need a service factory!" );
     111           8 :             if ( rxContext.is() )
     112             :             {
     113          16 :                 m_xFormatter = Reference< XNumberFormatter >(
     114             :                     NumberFormatter::create(rxContext),
     115             :                     UNO_QUERY_THROW
     116           8 :                 );
     117             :             }
     118             : 
     119           8 :             Reference< XNumberFormatsSupplier >  xNumberFormats = ::dbtools::getNumberFormats( m_xConnection, true );
     120           8 :             if ( !xNumberFormats.is() )
     121           0 :                 ::comphelper::disposeComponent( m_xFormatter );
     122             :             else
     123           8 :                 m_xFormatter->attachNumberFormatsSupplier( xNumberFormats );
     124             : 
     125             :             // create the locale data
     126           8 :             if ( rxContext.is() )
     127             :             {
     128           8 :                 m_xLocaleData = LocaleData::create( rxContext );
     129           8 :             }
     130             :         }
     131           0 :         catch( const Exception& )
     132             :         {
     133             :             OSL_FAIL( "OPredicateInputController::OPredicateInputController: caught an exception!" );
     134             :         }
     135           8 :     }
     136             : 
     137             : 
     138          72 :     OSQLParseNode* OPredicateInputController::implPredicateTree(OUString& _rErrorMessage, const OUString& _rStatement, const Reference< XPropertySet > & _rxField) const
     139             :     {
     140          72 :         OSQLParseNode* pReturn = const_cast< OSQLParser& >( m_aParser ).predicateTree( _rErrorMessage, _rStatement, m_xFormatter, _rxField );
     141          72 :         if ( !pReturn )
     142             :         {   // is it a text field ?
     143           0 :             sal_Int32 nType = DataType::OTHER;
     144           0 :             _rxField->getPropertyValue("Type") >>= nType;
     145             : 
     146           0 :             if  (   ( DataType::CHAR        == nType )
     147           0 :                 ||  ( DataType::VARCHAR     == nType )
     148           0 :                 ||  ( DataType::LONGVARCHAR == nType )
     149           0 :                 ||  ( DataType::CLOB        == nType )
     150             :                 )
     151             :             {   // yes -> force a quoted text and try again
     152           0 :                 OUString sQuoted( _rStatement );
     153           0 :                 if  (   !sQuoted.isEmpty()
     154           0 :                     &&  (   !sQuoted.startsWith("'")
     155           0 :                         ||  !sQuoted.endsWith("'")
     156             :                         )
     157             :                     )
     158             :                 {
     159           0 :                     static const OUString sSingleQuote( "'" );
     160           0 :                     static const OUString sDoubleQuote( "''" );
     161             : 
     162           0 :                     sal_Int32 nIndex = -1;
     163           0 :                     sal_Int32 nTemp = 0;
     164           0 :                     while ( -1 != ( nIndex = sQuoted.indexOf( '\'',nTemp ) ) )
     165             :                     {
     166           0 :                         sQuoted = sQuoted.replaceAt( nIndex, 1, sDoubleQuote );
     167           0 :                         nTemp = nIndex+2;
     168             :                     }
     169             : 
     170           0 :                     OUString sTemp( sSingleQuote );
     171           0 :                     ( sTemp += sQuoted ) += sSingleQuote;
     172           0 :                     sQuoted = sTemp;
     173             :                 }
     174           0 :                 pReturn = const_cast< OSQLParser& >( m_aParser ).predicateTree( _rErrorMessage, sQuoted, m_xFormatter, _rxField );
     175             :             }
     176             : 
     177             :             // one more fallback: for numeric fields, and value strings containing a decimal/thousands separator
     178             :             // problem which is to be solved with this:
     179             :             // * a system locale "german"
     180             :             // * a column formatted with an english number format
     181             :             // => the output is german (as we use the system locale for this), i.e. "3,4"
     182             :             // => the input does not recognize the german text, as predicateTree uses the number format
     183             :             //    of the column to determine the main locale - the locale on the context is only a fallback
     184           0 :             if  (   ( DataType::FLOAT == nType )
     185           0 :                 ||  ( DataType::REAL == nType )
     186           0 :                 ||  ( DataType::DOUBLE == nType )
     187           0 :                 ||  ( DataType::NUMERIC == nType )
     188           0 :                 ||  ( DataType::DECIMAL == nType )
     189             :                 )
     190             :             {
     191           0 :                 const IParseContext& rParseContext = m_aParser.getContext();
     192             :                 // get the separators for the locale of our parse context
     193             :                 sal_Unicode nCtxDecSep;
     194             :                 sal_Unicode nCtxThdSep;
     195           0 :                 getSeparatorChars( rParseContext.getPreferredLocale(), nCtxDecSep, nCtxThdSep );
     196             : 
     197             :                 // determine the locale of the column we're building a predicate string for
     198           0 :                 sal_Unicode nFmtDecSep( nCtxDecSep );
     199           0 :                 sal_Unicode nFmtThdSep( nCtxThdSep );
     200             :                 try
     201             :                 {
     202           0 :                     Reference< XPropertySetInfo > xPSI( _rxField->getPropertySetInfo() );
     203           0 :                     if ( xPSI.is() && xPSI->hasPropertyByName("FormatKey") )
     204             :                     {
     205           0 :                         sal_Int32 nFormatKey = 0;
     206           0 :                         _rxField->getPropertyValue("FormatKey") >>= nFormatKey;
     207           0 :                         if ( nFormatKey && m_xFormatter.is() )
     208             :                         {
     209           0 :                             Locale aFormatLocale;
     210             :                             ::comphelper::getNumberFormatProperty(
     211             :                                 m_xFormatter,
     212             :                                 nFormatKey,
     213             :                                 OUString( "Locale" )
     214           0 :                             ) >>= aFormatLocale;
     215             : 
     216             :                             // valid locale
     217           0 :                             if ( !aFormatLocale.Language.isEmpty() )
     218             :                             {
     219           0 :                                 getSeparatorChars( aFormatLocale, nFmtDecSep, nCtxThdSep );
     220           0 :                             }
     221             :                         }
     222           0 :                     }
     223             :                 }
     224           0 :                 catch( const Exception& )
     225             :                 {
     226             :                     OSL_FAIL( "OPredicateInputController::implPredicateTree: caught an exception while dealing with the formats!" );
     227             :                 }
     228             : 
     229           0 :                 bool bDecDiffers = ( nCtxDecSep != nFmtDecSep );
     230           0 :                 bool bFmtDiffers = ( nCtxThdSep != nFmtThdSep );
     231           0 :                 if ( bDecDiffers || bFmtDiffers )
     232             :                 {   // okay, at least one differs
     233             :                     // "translate" the value into the "format locale"
     234           0 :                     OUString sTranslated( _rStatement );
     235           0 :                     const sal_Unicode nIntermediate( '_' );
     236           0 :                     sTranslated = sTranslated.replace( nCtxDecSep,  nIntermediate );
     237           0 :                     sTranslated = sTranslated.replace( nCtxThdSep,  nFmtThdSep );
     238           0 :                     sTranslated = sTranslated.replace( nIntermediate, nFmtDecSep );
     239             : 
     240           0 :                     pReturn = const_cast< OSQLParser& >( m_aParser ).predicateTree( _rErrorMessage, sTranslated, m_xFormatter, _rxField );
     241             :                 }
     242             :             }
     243             :         }
     244          72 :         return pReturn;
     245             :     }
     246             : 
     247             : 
     248           0 :     bool OPredicateInputController::normalizePredicateString(
     249             :         OUString& _rPredicateValue, const Reference< XPropertySet > & _rxField, OUString* _pErrorMessage ) const
     250             :     {
     251             :         OSL_ENSURE( m_xConnection.is() && m_xFormatter.is() && _rxField.is(),
     252             :             "OPredicateInputController::normalizePredicateString: invalid state or params!" );
     253             : 
     254           0 :         bool bSuccess = false;
     255           0 :         if ( m_xConnection.is() && m_xFormatter.is() && _rxField.is() )
     256             :         {
     257             :             // parse the string
     258           0 :             OUString sError;
     259           0 :             OUString sTransformedText( _rPredicateValue );
     260           0 :             OSQLParseNode* pParseNode = implPredicateTree( sError, sTransformedText, _rxField );
     261           0 :             if ( _pErrorMessage ) *_pErrorMessage = sError;
     262             : 
     263           0 :             if ( pParseNode )
     264             :             {
     265           0 :                 const IParseContext& rParseContext = m_aParser.getContext();
     266             :                 sal_Unicode nDecSeparator, nThousandSeparator;
     267           0 :                 getSeparatorChars( rParseContext.getPreferredLocale(), nDecSeparator, nThousandSeparator );
     268             : 
     269             :                 // translate it back into a string
     270           0 :                 sTransformedText = OUString();
     271             :                 pParseNode->parseNodeToPredicateStr(
     272             :                     sTransformedText, m_xConnection, m_xFormatter, _rxField, OUString(),
     273           0 :                     rParseContext.getPreferredLocale(), (sal_Char)nDecSeparator, &rParseContext
     274           0 :                 );
     275           0 :                 _rPredicateValue = sTransformedText;
     276           0 :                 delete pParseNode;
     277             : 
     278           0 :                 bSuccess = true;
     279           0 :             }
     280             :         }
     281             : 
     282           0 :         return bSuccess;
     283             :     }
     284             : 
     285             : 
     286          72 :     OUString OPredicateInputController::getPredicateValue(
     287             :         const OUString& _rPredicateValue, const Reference< XPropertySet > & _rxField,
     288             :         bool _bForStatementUse, OUString* _pErrorMessage ) const
     289             :     {
     290             :         OSL_ENSURE( _rxField.is(), "OPredicateInputController::getPredicateValue: invalid params!" );
     291          72 :         OUString sReturn;
     292          72 :         if ( _rxField.is() )
     293             :         {
     294          72 :             OUString sValue( _rPredicateValue );
     295             : 
     296             :             // a little problem : if the field is a text field, the normalizePredicateString added two
     297             :             // '-characters to the text. If we would give this to predicateTree this would add
     298             :             // two  additional '-characters which we don't want. So check the field format.
     299             :             // FS - 06.01.00 - 71532
     300          72 :             bool bValidQuotedText = sValue.startsWith("'") && sValue.endsWith("'");
     301             :                 // again : as normalizePredicateString always did a conversion on the value text,
     302             :                 // bValidQuotedText == sal_True implies that we have a text field, as no other field
     303             :                 // values will be formatted with the quote characters
     304          72 :             if ( bValidQuotedText )
     305             :             {
     306          72 :                 sValue = sValue.copy( 1, sValue.getLength() - 2 );
     307          72 :                 static const OUString sSingleQuote( "'" );
     308          72 :                 static const OUString sDoubleQuote( "''" );
     309             : 
     310          72 :                 sal_Int32 nIndex = -1;
     311          72 :                 sal_Int32 nTemp = 0;
     312         144 :                 while ( -1 != ( nIndex = sValue.indexOf( sDoubleQuote,nTemp ) ) )
     313             :                 {
     314           0 :                     sValue = sValue.replaceAt( nIndex, 2, sSingleQuote );
     315           0 :                     nTemp = nIndex+2;
     316             :                 }
     317             :             }
     318             : 
     319             :             // The following is mostly stolen from the former implementation in the parameter dialog
     320             :             // (dbaccess/source/ui/dlg/paramdialog.cxx). I do not fully understand this .....
     321             : 
     322         144 :             OUString sError;
     323          72 :             OSQLParseNode* pParseNode = implPredicateTree( sError, sValue, _rxField );
     324          72 :             if ( _pErrorMessage )
     325           0 :                 *_pErrorMessage = sError;
     326             : 
     327         144 :             sReturn = implParseNode(pParseNode,_bForStatementUse);
     328             :         }
     329             : 
     330          72 :         return sReturn;
     331             :     }
     332             : 
     333           0 :     OUString OPredicateInputController::getPredicateValue(
     334             :         const OUString& _sField, const OUString& _rPredicateValue, bool _bForStatementUse, OUString* _pErrorMessage ) const
     335             :     {
     336           0 :         OUString sReturn = _rPredicateValue;
     337           0 :         OUString sError;
     338           0 :         OUString sField = _sField;
     339           0 :         sal_Int32 nIndex = 0;
     340           0 :         sField = sField.getToken(0,'(',nIndex);
     341           0 :         if(nIndex == -1)
     342           0 :             sField = _sField;
     343           0 :         sal_Int32 nType = ::connectivity::OSQLParser::getFunctionReturnType(sField,&m_aParser.getContext());
     344           0 :         if ( nType == DataType::OTHER || sField.isEmpty() )
     345             :         {
     346             :             // first try the international version
     347           0 :             OUString sSql = "SELECT * FROM x WHERE " + sField + _rPredicateValue;
     348           0 :             boost::scoped_ptr<OSQLParseNode> pParseNode( const_cast< OSQLParser& >( m_aParser ).parseTree( sError, sSql, true ) );
     349           0 :             nType = DataType::DOUBLE;
     350           0 :             if ( pParseNode.get() )
     351             :             {
     352           0 :                 OSQLParseNode* pColumnRef = pParseNode->getByRule(OSQLParseNode::column_ref);
     353             :                 if ( pColumnRef )
     354             :                 {
     355             :                 }
     356           0 :             }
     357             :         }
     358             : 
     359           0 :         Reference<XDatabaseMetaData> xMeta = m_xConnection->getMetaData();
     360             :         parse::OParseColumn* pColumn = new parse::OParseColumn( sField,
     361             :                                                                 OUString(),
     362             :                                                                 OUString(),
     363             :                                                                 OUString(),
     364             :                                                                 ColumnValue::NULLABLE_UNKNOWN,
     365             :                                                                 0,
     366             :                                                                 0,
     367             :                                                                 nType,
     368             :                                                                 false,
     369             :                                                                 false,
     370           0 :                                                                 xMeta.is() && xMeta->supportsMixedCaseQuotedIdentifiers(),
     371             :                                                                 OUString(),
     372             :                                                                 OUString(),
     373           0 :                                                                 OUString());
     374           0 :         Reference<XPropertySet> xColumn = pColumn;
     375           0 :         pColumn->setFunction(true);
     376           0 :         pColumn->setRealName(sField);
     377             : 
     378           0 :         OSQLParseNode* pParseNode = implPredicateTree( sError, _rPredicateValue, xColumn );
     379           0 :         if ( _pErrorMessage )
     380           0 :             *_pErrorMessage = sError;
     381           0 :         return pParseNode ? implParseNode(pParseNode,_bForStatementUse) : sReturn;
     382             :     }
     383             : 
     384          72 :     OUString OPredicateInputController::implParseNode(OSQLParseNode* pParseNode, bool _bForStatementUse) const
     385             :     {
     386          72 :         OUString sReturn;
     387          72 :         if ( pParseNode )
     388             :         {
     389          72 :             boost::shared_ptr<OSQLParseNode> xTakeOwnership(pParseNode);
     390          72 :             OSQLParseNode* pOdbcSpec = pParseNode->getByRule( OSQLParseNode::odbc_fct_spec );
     391          72 :             if ( pOdbcSpec )
     392             :             {
     393           0 :                 if ( _bForStatementUse )
     394             :                 {
     395           0 :                     OSQLParseNode* pFuncSpecParent = pOdbcSpec->getParent();
     396             :                     OSL_ENSURE( pFuncSpecParent, "OPredicateInputController::getPredicateValue: an ODBC func spec node without parent?" );
     397           0 :                     if ( pFuncSpecParent )
     398           0 :                         pFuncSpecParent->parseNodeToStr(sReturn, m_xConnection, &m_aParser.getContext(), false, true);
     399             :                 }
     400             :                 else
     401             :                 {
     402           0 :                     OSQLParseNode* pValueNode = pOdbcSpec->getChild(1);
     403           0 :                     if ( SQL_NODE_STRING == pValueNode->getNodeType() )
     404           0 :                         sReturn = pValueNode->getTokenValue();
     405             :                     else
     406           0 :                         pValueNode->parseNodeToStr(sReturn, m_xConnection, &m_aParser.getContext(), false, true);
     407             :                 }
     408             :             }
     409             :             else
     410             :             {
     411          72 :                 if (pParseNode->count() >= 3)
     412             :                 {
     413          72 :                     OSQLParseNode* pValueNode = pParseNode->getChild(2);
     414             :                     assert(pValueNode && "OPredicateInputController::getPredicateValue: invalid node child!");
     415          72 :                     if ( !_bForStatementUse )
     416             :                     {
     417           0 :                         if ( SQL_NODE_STRING == pValueNode->getNodeType() )
     418           0 :                             sReturn = pValueNode->getTokenValue();
     419             :                         else
     420             :                             pValueNode->parseNodeToStr(
     421           0 :                                 sReturn, m_xConnection, &m_aParser.getContext(), false, true
     422           0 :                             );
     423             :                     }
     424             :                     else
     425             :                         pValueNode->parseNodeToStr(
     426          72 :                             sReturn, m_xConnection, &m_aParser.getContext(), false, true
     427          72 :                         );
     428             :                 }
     429             :                 else
     430             :                     OSL_FAIL( "OPredicateInputController::getPredicateValue: unknown/invalid structure (noodbc)!" );
     431          72 :             }
     432             :         }
     433          72 :         return sReturn;
     434             :     }
     435             : 
     436             : }   // namespace dbtools
     437             : 
     438             : 
     439             : 
     440             : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */

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