connectivity/source/drivers/postgresql/pq_xindexes.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 <cppuhelper/exc_hlp.hxx>
  45
  46 #include "pq_xindexes.hxx"
  47 #include "pq_xindex.hxx"
  48 #include "pq_statics.hxx"
  49 #include "pq_tools.hxx"
  50
  51 using osl::MutexGuard;
  52
  53
  54 using com::sun::star::beans::XPropertySet;
  55
  56 using com::sun::star::uno::Any;
  57 using com::sun::star::uno::makeAny;
  58 using com::sun::star::uno::UNO_QUERY;
  59 using com::sun::star::uno::Reference;
  60 using com::sun::star::uno::Sequence;
  61
  62 using com::sun::star::container::XEnumerationAccess;
  63 using com::sun::star::container::XEnumeration;
  64
  65
  66 using com::sun::star::sdbcx::XColumnsSupplier;
  67
  68 using com::sun::star::sdbc::XRow;
  69 using com::sun::star::sdbc::XResultSet;
  70 using com::sun::star::sdbc::XParameters;
  71 using com::sun::star::sdbc::XPreparedStatement;
  72
  73 namespace pq_sdbc_driver
  74 {
  75
  76 Indexes::Indexes(
  77         const ::rtl::Reference< comphelper::RefCountedMutex > & refMutex,
  78         const css::uno::Reference< css::sdbc::XConnection >  & origin,
  79         ConnectionSettings *pSettings,
  80         const OUString &schemaName,
  81         const OUString &tableName)
  82     : Container( refMutex, origin, pSettings,  getStatics().KEY ),
  83       m_schemaName( schemaName ),
  84       m_tableName( tableName )
  85 {
  86 }
  87
  88 Indexes::~Indexes()
  89 {}
  90
  91 void Indexes::refresh()
  92 {
  93     try
  94     {
  95         SAL_INFO("connectivity.postgresql", "sdbcx.Indexes get refreshed for table " << m_schemaName << "." << m_tableName);
  96
  97         osl::MutexGuard guard( m_xMutex->GetMutex() );
  98         Statics & st = getStatics();
  99
 100         Int2StringMap column2NameMap;
 101         fillAttnum2attnameMap( column2NameMap, m_origin, m_schemaName, m_tableName );
 102
 103         // see XDatabaseMetaData::getIndexInfo()
 104         Reference< XPreparedStatement > stmt = m_origin->prepareStatement(
 105                 "SELECT nspname, "      // 1
 106                    "pg_class.relname, " // 2
 107                    "class2.relname, "   // 3
 108                    "indisclustered, "   // 4
 109                    "indisunique, "      // 5
 110                    "indisprimary, "     // 6
 111                    "indkey "            // 7
 112                 "FROM pg_index INNER JOIN pg_class ON indrelid = pg_class.oid "
 113                     "INNER JOIN pg_namespace ON pg_class.relnamespace = pg_namespace.oid "
 114                     "INNER JOIN pg_class as class2 ON pg_index.indexrelid = class2.oid "
 115                 "WHERE nspname = ? AND pg_class.relname = ?" );
 116
 117         Reference< XParameters > params( stmt, UNO_QUERY);
 118         params->setString( 1, m_schemaName );
 119         params->setString( 2, m_tableName );
 120         Reference< XResultSet > rs = stmt->executeQuery();
 121
 122         Reference< XRow > row( rs, UNO_QUERY );
 123         String2IntMap map;
 124         m_values.clear();
 125         sal_Int32 index = 0;
 126         while( rs->next() )
 127         {
 128             // C_SCHEMA = 1
 129             // C_TABLENAME = 2
 130             static const sal_Int32 C_INDEXNAME = 3;
 131             static const sal_Int32 C_IS_CLUSTERED = 4;
 132             static const sal_Int32 C_IS_UNIQUE = 5;
 133             static const sal_Int32 C_IS_PRIMARY = 6;
 134             static const sal_Int32 C_COLUMNS = 7;
 135             OUString currentIndexName = row->getString( C_INDEXNAME );
 136             Index *pIndex =
 137                 new Index( m_xMutex, m_origin, m_pSettings,
 138                            m_schemaName, m_tableName );
 139
 140             bool isUnique = row->getBoolean( C_IS_UNIQUE );
 141             bool isPrimary = row->getBoolean( C_IS_PRIMARY );
 142             bool isClusterd = row->getBoolean( C_IS_CLUSTERED );
 143             Reference< css::beans::XPropertySet > prop = pIndex;
 144             pIndex->setPropertyValue_NoBroadcast_public(
 145                 st.IS_UNIQUE, Any( isUnique ) );
 146             pIndex->setPropertyValue_NoBroadcast_public(
 147                 st.IS_PRIMARY_KEY_INDEX, Any( isPrimary ) );
 148             pIndex->setPropertyValue_NoBroadcast_public(
 149                 st.IS_CLUSTERED, Any( isClusterd ) );
 150             pIndex->setPropertyValue_NoBroadcast_public(
 151                 st.NAME, makeAny( currentIndexName ) );
 152
 153             std::vector< sal_Int32 > seq = parseIntArray( row->getString( C_COLUMNS ) );
 154             Sequence< OUString > columnNames(seq.size());
 155             for( size_t columns = 0 ; columns < seq.size() ; columns ++ )
 156             {
 157                 columnNames[columns] = column2NameMap[ seq[columns] ];
 158             }
 159
 160             pIndex->setPropertyValue_NoBroadcast_public(
 161                 st.PRIVATE_COLUMN_INDEXES, makeAny( columnNames ));
 162
 163             {
 164                 m_values.push_back( makeAny( prop ) );
 165                 map[ currentIndexName ] = index;
 166                 ++index;
 167             }
 168         }
 169         m_name2index.swap( map );
 170     }
 171     catch ( css::sdbc::SQLException & e )
 172     {
 173         css::uno::Any anyEx = cppu::getCaughtException();
 174         throw css::lang::WrappedTargetRuntimeException( e.Message,
 175                         e.Context, anyEx );
 176     }
 177
 178     fire( RefreshedBroadcaster( *this ) );
 179 }
 180
 181
 182 void Indexes::appendByDescriptor(
 183     const css::uno::Reference< css::beans::XPropertySet >& descriptor )
 184 {
 185     Statics & st = getStatics();
 186     OUString name = extractStringProperty( descriptor, st.NAME );
 187
 188     bool isUnique = extractBoolProperty( descriptor, st.IS_UNIQUE );
 189
 190     OUStringBuffer buf( 128 );
 191
 192     buf.append( "CREATE " );
 193     if( isUnique )
 194         buf.append( "UNIQUE " );
 195     buf.append( "INDEX " );
 196     bufferQuoteIdentifier( buf, name, m_pSettings );
 197     buf.append( " ON " );
 198     bufferQuoteQualifiedIdentifier( buf, m_schemaName, m_tableName, m_pSettings );
 199
 200     buf.append( " ( " );
 201
 202     Reference< XColumnsSupplier > columns( descriptor, UNO_QUERY );
 203     if( columns.is() )
 204     {
 205         Reference< XEnumerationAccess > access( columns->getColumns(), UNO_QUERY );
 206         if( access.is() )
 207         {
 208             Reference< XEnumeration > xEnum( access->createEnumeration() );
 209             bool first = true;
 210             while( xEnum.is() && xEnum->hasMoreElements() )
 211             {
 212                 Reference< XPropertySet > column( xEnum->nextElement(), UNO_QUERY );
 213                 if( first )
 214                 {
 215                     first = false;
 216                 }
 217                 else
 218                 {
 219                     buf.append( ", " );
 220                 }
 221                 buf.append( extractStringProperty( column, st.NAME ) );
 222             }
 223         }
 224     }
 225     buf.append( " ) " );
 226
 227     m_origin->createStatement()->executeUpdate( buf.makeStringAndClear() );
 228     refresh();
 229 }
 230
 231 void Indexes::dropByIndex( sal_Int32 index )
 232 {
 233
 234
 235     osl::MutexGuard guard( m_xMutex->GetMutex() );
 236     if( index < 0 ||  index >= static_cast<sal_Int32>(m_values.size()) )
 237     {
 238         throw css::lang::IndexOutOfBoundsException(
 239             "Indexes: Index out of range (allowed 0 to "
 240             + OUString::number( m_values.size() -1 )
 241             + ", got " + OUString::number( index )
 242             + ")",
 243             *this );
 244     }
 245
 246     Reference< XPropertySet > set;
 247     m_values[index] >>= set;
 248     Statics &st = getStatics();
 249
 250     OUStringBuffer buf( 128 );
 251     buf.append( "DROP INDEX " );
 252     bufferQuoteIdentifier( buf, extractStringProperty( set, st.NAME ), m_pSettings );
 253     m_origin->createStatement()->executeUpdate( buf.makeStringAndClear() );
 254
 255     Container::dropByIndex( index );
 256 }
 257
 258
 259 css::uno::Reference< css::beans::XPropertySet > Indexes::createDataDescriptor()
 260 {
 261     return new IndexDescriptor( m_xMutex, m_origin, m_pSettings );
 262 }
 263
 264 Reference< css::container::XNameAccess > Indexes::create(
 265     const ::rtl::Reference< comphelper::RefCountedMutex > & refMutex,
 266     const css::uno::Reference< css::sdbc::XConnection >  & origin,
 267     ConnectionSettings *pSettings,
 268     const OUString & schemaName,
 269     const OUString & tableName)
 270 {
 271     Indexes *pIndexes = new Indexes( refMutex, origin, pSettings, schemaName, tableName );
 272     Reference< css::container::XNameAccess > ret = pIndexes;
 273     pIndexes->refresh();
 274     return ret;
 275 }
 276
 277
 278 IndexDescriptors::IndexDescriptors(
 279         const ::rtl::Reference< comphelper::RefCountedMutex > & refMutex,
 280         const css::uno::Reference< css::sdbc::XConnection >  & origin,
 281         ConnectionSettings *pSettings)
 282     : Container( refMutex, origin, pSettings,  getStatics().INDEX )
 283 {}
 284
 285 Reference< css::container::XNameAccess > IndexDescriptors::create(
 286     const ::rtl::Reference< comphelper::RefCountedMutex > & refMutex,
 287     const css::uno::Reference< css::sdbc::XConnection >  & origin,
 288     ConnectionSettings *pSettings)
 289 {
 290     return new IndexDescriptors( refMutex, origin, pSettings );
 291 }
 292
 293 css::uno::Reference< css::beans::XPropertySet > IndexDescriptors::createDataDescriptor()
 294 {
 295     return new IndexDescriptor( m_xMutex, m_origin, m_pSettings );
 296 }
 297
 298 };
 299
 300 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */