dbaccess/source/core/api/viewcontainer.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
  20 #include "viewcontainer.hxx"
  21 #include "dbastrings.hrc"
  22 #include "core_resource.hxx"
  23 #include "core_resource.hrc"
  24 #include "View.hxx"
  25
  26 #include <tools/debug.hxx>
  27 #include <comphelper/enumhelper.hxx>
  28 #include <comphelper/types.hxx>
  29 #include <connectivity/dbtools.hxx>
  30 #include <comphelper/extract.hxx>
  31 #include <connectivity/dbexception.hxx>
  32 #include <rtl/ustrbuf.hxx>
  33
  34 #include <com/sun/star/beans/XPropertySet.hpp>
  35 #include <com/sun/star/sdbc/XConnection.hpp>
  36 #include <com/sun/star/sdbc/XDatabaseMetaData.hpp>
  37 #include <com/sun/star/sdbc/KeyRule.hpp>
  38 #include <com/sun/star/sdbc/ColumnValue.hpp>
  39 #include <com/sun/star/sdbc/XRow.hpp>
  40 #include <com/sun/star/sdbcx/XColumnsSupplier.hpp>
  41 #include <com/sun/star/sdbcx/XTablesSupplier.hpp>
  42 #include <com/sun/star/sdbcx/KeyType.hpp>
  43
  44 using namespace dbaccess;
  45 using namespace dbtools;
  46 using namespace ::com::sun::star::uno;
  47 using namespace ::com::sun::star::lang;
  48 using namespace ::com::sun::star::beans;
  49 using namespace ::com::sun::star::sdbc;
  50 using namespace ::com::sun::star::sdb;
  51 using namespace ::com::sun::star::sdbcx;
  52 using namespace ::com::sun::star::util;
  53 using namespace ::com::sun::star::container;
  54 using namespace ::osl;
  55 using namespace ::comphelper;
  56 using namespace ::cppu;
  57 using namespace ::connectivity::sdbcx;
  58
  59 // OViewContainer
  60
  61 OViewContainer::OViewContainer(::cppu::OWeakObject& _rParent
  62                                  ,::osl::Mutex& _rMutex
  63                                  ,const Reference< XConnection >& _xCon
  64                                  ,bool _bCase
  65                                  ,IRefreshListener* _pRefreshListener
  66                                  ,::dbtools::IWarningsContainer* _pWarningsContainer
  67                                  ,oslInterlockedCount& _nInAppend)
  68     :OFilteredContainer(_rParent,_rMutex,_xCon,_bCase,_pRefreshListener,_pWarningsContainer,_nInAppend)
  69     ,m_bInElementRemoved(false)
  70 {
  71 }
  72
  73 OViewContainer::~OViewContainer()
  74 {
  75 }
  76
  77 // XServiceInfo
  78 IMPLEMENT_SERVICE_INFO2(OViewContainer, "com.sun.star.sdb.dbaccess.OViewContainer", SERVICE_SDBCX_CONTAINER, SERVICE_SDBCX_TABLES)
  79
  80 ObjectType OViewContainer::createObject(const OUString& _rName)
  81 {
  82     ObjectType xProp;
  83     if ( m_xMasterContainer.is() && m_xMasterContainer->hasByName(_rName) )
  84         xProp.set(m_xMasterContainer->getByName(_rName),UNO_QUERY);
  85
  86     if ( !xProp.is() )
  87     {
  88         OUString sCatalog,sSchema,sTable;
  89         ::dbtools::qualifiedNameComponents(m_xMetaData,
  90                                             _rName,
  91                                             sCatalog,
  92                                             sSchema,
  93                                             sTable,
  94                                             ::dbtools::eInDataManipulation);
  95         return new View(m_xConnection,
  96                         isCaseSensitive(),
  97                         sCatalog,
  98                         sSchema,
  99                         sTable
 100                         );
 101     }
 102
 103     return xProp;
 104 }
 105
 106 Reference< XPropertySet > OViewContainer::createDescriptor()
 107 {
 108     Reference< XPropertySet > xRet;
 109     // first we have to look if the master tables support this
 110     // and if so then create a table object as well with the master tables
 111     Reference<XColumnsSupplier > xMasterColumnsSup;
 112     Reference<XDataDescriptorFactory> xDataFactory(m_xMasterContainer,UNO_QUERY);
 113     if(xDataFactory.is())
 114         xRet = xDataFactory->createDataDescriptor();
 115     else
 116         xRet = new ::connectivity::sdbcx::OView(isCaseSensitive(),m_xMetaData);
 117
 118     return xRet;
 119 }
 120
 121 // XAppend
 122 ObjectType OViewContainer::appendObject( const OUString& _rForName, const Reference< XPropertySet >& descriptor )
 123 {
 124     // append the new table with a create stmt
 125     OUString aName = getString(descriptor->getPropertyValue(PROPERTY_NAME));
 126
 127     Reference<XAppend> xAppend(m_xMasterContainer,UNO_QUERY);
 128     Reference< XPropertySet > xProp = descriptor;
 129     if(xAppend.is())
 130     {
 131         EnsureReset aReset(m_nInAppend);
 132
 133         xAppend->appendByDescriptor(descriptor);
 134         if(m_xMasterContainer->hasByName(aName))
 135             xProp.set(m_xMasterContainer->getByName(aName),UNO_QUERY);
 136     }
 137     else
 138     {
 139         OUString sComposedName = ::dbtools::composeTableName( m_xMetaData, descriptor, ::dbtools::eInTableDefinitions, false, false, true );
 140         if(sComposedName.isEmpty())
 141             ::dbtools::throwFunctionSequenceException(static_cast<XTypeProvider*>(static_cast<OFilteredContainer*>(this)));
 142
 143         OUString sCommand;
 144         descriptor->getPropertyValue(PROPERTY_COMMAND) >>= sCommand;
 145
 146         OUStringBuffer aSQL;
 147         aSQL.appendAscii( "CREATE VIEW " );
 148         aSQL.append     ( sComposedName );
 149         aSQL.appendAscii( " AS " );
 150         aSQL.append     ( sCommand );
 151
 152         Reference<XConnection> xCon = m_xConnection;
 153         OSL_ENSURE(xCon.is(),"Connection is null!");
 154         if ( xCon.is() )
 155         {
 156             ::utl::SharedUNOComponent< XStatement > xStmt( xCon->createStatement() );
 157             if ( xStmt.is() )
 158                 xStmt->execute( aSQL.makeStringAndClear() );
 159         }
 160     }
 161
 162     return createObject( _rForName );
 163 }
 164
 165 // XDrop
 166 void OViewContainer::dropObject(sal_Int32 _nPos, const OUString& _sElementName)
 167 {
 168     if ( !m_bInElementRemoved )
 169     {
 170         Reference< XDrop > xDrop(m_xMasterContainer,UNO_QUERY);
 171         if(xDrop.is())
 172             xDrop->dropByName(_sElementName);
 173         else
 174         {
 175             OUString sCatalog,sSchema,sTable,sComposedName;
 176
 177             Reference<XPropertySet> xTable(getObject(_nPos),UNO_QUERY);
 178             if ( xTable.is() )
 179             {
 180                 xTable->getPropertyValue(PROPERTY_CATALOGNAME)  >>= sCatalog;
 181                 xTable->getPropertyValue(PROPERTY_SCHEMANAME)   >>= sSchema;
 182                 xTable->getPropertyValue(PROPERTY_NAME)         >>= sTable;
 183
 184                 sComposedName = ::dbtools::composeTableName( m_xMetaData, sCatalog, sSchema, sTable, true, ::dbtools::eInTableDefinitions );
 185             }
 186
 187             if(sComposedName.isEmpty())
 188                 ::dbtools::throwFunctionSequenceException(static_cast<XTypeProvider*>(static_cast<OFilteredContainer*>(this)));
 189
 190             OUString aSql("DROP VIEW ");
 191             aSql += sComposedName;
 192             Reference<XConnection> xCon = m_xConnection;
 193             OSL_ENSURE(xCon.is(),"Connection is null!");
 194             if ( xCon.is() )
 195             {
 196                 Reference< XStatement > xStmt = xCon->createStatement(  );
 197                 if(xStmt.is())
 198                     xStmt->execute(aSql);
 199                 ::comphelper::disposeComponent(xStmt);
 200             }
 201         }
 202     }
 203 }
 204
 205 void SAL_CALL OViewContainer::elementInserted( const ContainerEvent& Event ) throw (RuntimeException, std::exception)
 206 {
 207     ::osl::MutexGuard aGuard(m_rMutex);
 208     OUString sName;
 209     if  (   ( Event.Accessor >>= sName )
 210         &&  ( !m_nInAppend )
 211         &&  ( !hasByName( sName ) )
 212         )
 213     {
 214         Reference<XPropertySet> xProp(Event.Element,UNO_QUERY);
 215         OUString sType;
 216         xProp->getPropertyValue(PROPERTY_TYPE) >>= sType;
 217         if ( sType == "VIEW" )
 218             insertElement(sName,createObject(sName));
 219     }
 220 }
 221
 222 void SAL_CALL OViewContainer::elementRemoved( const ContainerEvent& Event ) throw (RuntimeException, std::exception)
 223 {
 224     ::osl::MutexGuard aGuard(m_rMutex);
 225     OUString sName;
 226     if ( (Event.Accessor >>= sName) && hasByName(sName) )
 227     {
 228         m_bInElementRemoved = true;
 229         try
 230         {
 231             dropByName(sName);
 232         }
 233         catch(Exception&)
 234         {
 235             m_bInElementRemoved = false;
 236             throw;
 237         }
 238         m_bInElementRemoved = false;
 239     }
 240 }
 241
 242 void SAL_CALL OViewContainer::disposing( const ::com::sun::star::lang::EventObject& /*Source*/ ) throw (RuntimeException, std::exception)
 243 {
 244 }
 245
 246 void SAL_CALL OViewContainer::elementReplaced( const ContainerEvent& /*Event*/ ) throw (RuntimeException, std::exception)
 247 {
 248 }
 249
 250 OUString OViewContainer::getTableTypeRestriction() const
 251 {
 252     // no restriction at all (other than the ones provided externally)
 253     return OUString( "VIEW"  );
 254 }
 255
 256 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */