connectivity/source/drivers/postgresql/pq_xkeys.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*************************************************************************
   3  *
   4  *  Effective License of whole file:
   5  *
   6  *    This library is free software; you can redistribute it and/or
   7  *    modify it under the terms of the GNU Lesser General Public
   8  *    License version 2.1, as published by the Free Software Foundation.
   9  *
  10  *    This library is distributed in the hope that it will be useful,
  11  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  *    Lesser General Public License for more details.
  14  *
  15  *    You should have received a copy of the GNU Lesser General Public
  16  *    License along with this library; if not, write to the Free Software
  17  *    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  18  *    MA  02111-1307  USA
  19  *
  20  *  Parts "Copyright by Sun Microsystems, Inc" prior to August 2011:
  21  *
  22  *    The Contents of this file are made available subject to the terms of
  23  *    the GNU Lesser General Public License Version 2.1
  24  *
  25  *    Copyright: 2000 by Sun Microsystems, Inc.
  26  *
  27  *    Contributor(s): Joerg Budischewski
  28  *
  29  *  All parts contributed on or after August 2011:
  30  *
  31  *    This Source Code Form is subject to the terms of the Mozilla Public
  32  *    License, v. 2.0. If a copy of the MPL was not distributed with this
  33  *    file, You can obtain one at http://mozilla.org/MPL/2.0/.
  34  *
  35  ************************************************************************/
  36
  37 #include <sal/log.hxx>
  38 #include <rtl/ustrbuf.hxx>
  39 #include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
  40 #include <com/sun/star/lang/WrappedTargetRuntimeException.hpp>
  41 #include <com/sun/star/sdbc/SQLException.hpp>
  42 #include <com/sun/star/sdbc/XRow.hpp>
  43 #include <com/sun/star/sdbc/XParameters.hpp>
  44 #include <com/sun/star/sdbc/KeyRule.hpp>
  45 #include <com/sun/star/sdbcx/KeyType.hpp>
  46 #include <cppuhelper/exc_hlp.hxx>
  47
  48 #include "pq_xkeys.hxx"
  49 #include "pq_xkey.hxx"
  50 #include "pq_statics.hxx"
  51 #include "pq_tools.hxx"
  52
  53 using osl::MutexGuard;
  54
  55
  56 using css::beans::XPropertySet;
  57
  58 using com::sun::star::uno::makeAny;
  59 using com::sun::star::uno::UNO_QUERY;
  60 using com::sun::star::uno::Reference;
  61
  62
  63 using com::sun::star::sdbc::XRow;
  64 using com::sun::star::sdbc::XStatement;
  65 using com::sun::star::sdbc::XResultSet;
  66 using com::sun::star::sdbc::XParameters;
  67 using com::sun::star::sdbc::XPreparedStatement;
  68
  69 namespace pq_sdbc_driver
  70 {
  71
  72 Keys::Keys(
  73         const ::rtl::Reference< comphelper::RefCountedMutex > & refMutex,
  74         const css::uno::Reference< css::sdbc::XConnection >  & origin,
  75         ConnectionSettings *pSettings,
  76         const OUString &schemaName,
  77         const OUString &tableName)
  78     : Container( refMutex, origin, pSettings,  getStatics().KEY ),
  79       m_schemaName( schemaName ),
  80       m_tableName( tableName )
  81 {}
  82
  83 Keys::~Keys()
  84 {}
  85
  86 static sal_Int32 string2keytype( const OUString &type )
  87 {
  88     sal_Int32 ret = css::sdbcx::KeyType::UNIQUE;
  89     if ( type == "p" )
  90         ret = css::sdbcx::KeyType::PRIMARY;
  91     else if ( type == "f" )
  92         ret =  css::sdbcx::KeyType::FOREIGN;
  93     return ret;
  94 }
  95
  96 static sal_Int32 string2keyrule( const OUString & rule )
  97 {
  98     sal_Int32 ret = css::sdbc::KeyRule::NO_ACTION;
  99     if( rule == "r" )
 100         ret = css::sdbc::KeyRule::RESTRICT;
 101     else if( rule == "c" )
 102         ret = css::sdbc::KeyRule::CASCADE;
 103     else if( rule == "n" )
 104         ret = css::sdbc::KeyRule::SET_NULL;
 105     else if( rule == "d" )
 106         ret = css::sdbc::KeyRule::SET_DEFAULT;
 107     return ret;
 108 }
 109
 110 void Keys::refresh()
 111 {
 112     try
 113     {
 114         SAL_INFO("connectivity.postgresql", "sdbcx.Keys get refreshed for table " << m_schemaName << "." << m_tableName);
 115
 116         osl::MutexGuard guard( m_xMutex->GetMutex() );
 117         Statics & st = getStatics();
 118
 119         Int2StringMap mainMap;
 120         fillAttnum2attnameMap( mainMap, m_origin, m_schemaName, m_tableName );
 121
 122         Reference< XPreparedStatement > stmt = m_origin->prepareStatement(
 123                 "SELECT  conname, "            // 1
 124                         "contype, "            // 2
 125                         "confupdtype, "        // 3
 126                         "confdeltype, "        // 4
 127                         "class2.relname, "     // 5
 128                         "nmsp2.nspname, "      // 6
 129                         "conkey,"              // 7
 130                         "confkey "             // 8
 131                 "FROM pg_constraint INNER JOIN pg_class ON conrelid = pg_class.oid "
 132                       "INNER JOIN pg_namespace ON pg_class.relnamespace = pg_namespace.oid "
 133                       "LEFT JOIN pg_class AS class2 ON confrelid = class2.oid "
 134                       "LEFT JOIN pg_namespace AS nmsp2 ON class2.relnamespace=nmsp2.oid "
 135                 "WHERE pg_class.relname = ? AND pg_namespace.nspname = ?" );
 136
 137         Reference< XParameters > paras( stmt, UNO_QUERY );
 138         paras->setString( 1 , m_tableName );
 139         paras->setString( 2 , m_schemaName );
 140         Reference< XResultSet > rs = stmt->executeQuery();
 141
 142         Reference< XRow > xRow( rs , UNO_QUERY );
 143
 144         String2IntMap map;
 145         m_values.clear();
 146         int keyIndex = 0;
 147         while( rs->next() )
 148         {
 149             Key * pKey =
 150                 new Key( m_xMutex, m_origin, m_pSettings , m_schemaName, m_tableName );
 151             Reference< css::beans::XPropertySet > prop = pKey;
 152
 153             pKey->setPropertyValue_NoBroadcast_public(
 154                 st.NAME, makeAny( xRow->getString( 1 ) ) );
 155             sal_Int32 keyType = string2keytype( xRow->getString(2) );
 156             pKey->setPropertyValue_NoBroadcast_public( st.TYPE, makeAny( keyType  ) );
 157             pKey->setPropertyValue_NoBroadcast_public(
 158                 st.UPDATE_RULE, makeAny( string2keyrule( xRow->getString(3) ) ) );
 159             pKey->setPropertyValue_NoBroadcast_public(
 160                 st.DELETE_RULE, makeAny( string2keyrule( xRow->getString(4) ) ) );
 161             pKey->setPropertyValue_NoBroadcast_public(
 162                 st.PRIVATE_COLUMNS,
 163                 makeAny(
 164                     convertMappedIntArray2StringArray(
 165                         mainMap,
 166                         string2intarray( xRow->getString( 7 ) ) ) ) );
 167
 168             if( css::sdbcx::KeyType::FOREIGN == keyType )
 169             {
 170                 OUStringBuffer buf( 128 );
 171                 buf.append( xRow->getString( 6 ) ).append( "." ).append( xRow->getString( 5 ) );
 172                 pKey->setPropertyValue_NoBroadcast_public(
 173                     st.REFERENCED_TABLE, makeAny( buf.makeStringAndClear() ) );
 174
 175                 Int2StringMap foreignMap;
 176                 fillAttnum2attnameMap( foreignMap, m_origin, xRow->getString(6), xRow->getString(5));
 177                 pKey->setPropertyValue_NoBroadcast_public(
 178                     st.PRIVATE_FOREIGN_COLUMNS,
 179                     makeAny(
 180                     convertMappedIntArray2StringArray(
 181                         foreignMap,
 182                         string2intarray( xRow->getString(8) ) ) ) );
 183             }
 184
 185
 186             {
 187                 map[ xRow->getString( 1 ) ] = keyIndex;
 188                 m_values.push_back( makeAny( prop ) );
 189                 ++keyIndex;
 190             }
 191         }
 192         m_name2index.swap( map );
 193     }
 194     catch ( css::sdbc::SQLException & e )
 195     {
 196         css::uno::Any anyEx = cppu::getCaughtException();
 197         throw css::lang::WrappedTargetRuntimeException( e.Message,
 198                         e.Context, anyEx );
 199     }
 200
 201     fire( RefreshedBroadcaster( *this ) );
 202 }
 203
 204
 205 void Keys::appendByDescriptor(
 206     const css::uno::Reference< css::beans::XPropertySet >& descriptor )
 207 {
 208     osl::MutexGuard guard( m_xMutex->GetMutex() );
 209
 210     OUStringBuffer buf( 128 );
 211     buf.append( "ALTER TABLE " );
 212     bufferQuoteQualifiedIdentifier( buf, m_schemaName, m_tableName, m_pSettings );
 213     buf.append( " ADD " );
 214     bufferKey2TableConstraint( buf, descriptor, m_pSettings );
 215
 216     Reference< XStatement > stmt =
 217         m_origin->createStatement();
 218     stmt->executeUpdate( buf.makeStringAndClear() );
 219 }
 220
 221
 222 void Keys::dropByIndex( sal_Int32 index )
 223 {
 224     osl::MutexGuard guard( m_xMutex->GetMutex() );
 225     if( index < 0 ||  index >= static_cast<sal_Int32>(m_values.size()) )
 226     {
 227         throw css::lang::IndexOutOfBoundsException(
 228             "TABLES: Index out of range (allowed 0 to " + OUString::number(m_values.size() -1)
 229             + ", got " + OUString::number( index ) + ")",
 230             *this );
 231     }
 232
 233
 234     Reference< XPropertySet > set;
 235     m_values[index] >>= set;
 236
 237     OUStringBuffer buf( 128 );
 238     buf.append( "ALTER TABLE " );
 239     bufferQuoteQualifiedIdentifier( buf, m_schemaName, m_tableName, m_pSettings );
 240     buf.append( " DROP CONSTRAINT " );
 241     bufferQuoteIdentifier( buf, extractStringProperty( set , getStatics().NAME ), m_pSettings );
 242     m_origin->createStatement()->executeUpdate( buf.makeStringAndClear() );
 243
 244
 245     Container::dropByIndex( index );
 246 }
 247
 248
 249 css::uno::Reference< css::beans::XPropertySet > Keys::createDataDescriptor()
 250 {
 251     return new KeyDescriptor( m_xMutex, m_origin, m_pSettings );
 252 }
 253
 254 Reference< css::container::XIndexAccess > Keys::create(
 255     const ::rtl::Reference< comphelper::RefCountedMutex > & refMutex,
 256     const css::uno::Reference< css::sdbc::XConnection >  & origin,
 257     ConnectionSettings *pSettings,
 258     const OUString & schemaName,
 259     const OUString & tableName)
 260 {
 261     Keys *pKeys = new Keys( refMutex, origin, pSettings, schemaName, tableName );
 262     Reference< css::container::XIndexAccess > ret = pKeys;
 263     pKeys->refresh();
 264
 265     return ret;
 266 }
 267
 268 KeyDescriptors::KeyDescriptors(
 269         const ::rtl::Reference< comphelper::RefCountedMutex > & refMutex,
 270         const css::uno::Reference< css::sdbc::XConnection >  & origin,
 271         ConnectionSettings *pSettings)
 272     : Container( refMutex, origin, pSettings,  getStatics().KEY )
 273 {}
 274
 275 Reference< css::container::XIndexAccess > KeyDescriptors::create(
 276     const ::rtl::Reference< comphelper::RefCountedMutex > & refMutex,
 277     const css::uno::Reference< css::sdbc::XConnection >  & origin,
 278     ConnectionSettings *pSettings)
 279 {
 280     return new KeyDescriptors( refMutex, origin, pSettings );
 281 }
 282
 283 css::uno::Reference< css::beans::XPropertySet > KeyDescriptors::createDataDescriptor()
 284 {
 285     return new KeyDescriptor( m_xMutex, m_origin, m_pSettings );
 286 }
 287
 288 };
 289
 290 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */