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
  21 #include "viewcontainer.hxx"
  22 #include "dbastrings.hrc"
  23 #include "core_resource.hxx"
  24 #include "core_resource.hrc"
  25 #include "View.hxx"
  26
  27 #include <tools/debug.hxx>
  28 #include <comphelper/enumhelper.hxx>
  29 #include <comphelper/types.hxx>
  30 #include <connectivity/dbtools.hxx>
  31 #include <comphelper/extract.hxx>
  32 #include <connectivity/dbexception.hxx>
  33 #include <rtl/ustrbuf.hxx>
  34
  35 #include <com/sun/star/beans/XPropertySet.hpp>
  36 #include <com/sun/star/sdbc/XConnection.hpp>
  37 #include <com/sun/star/sdbc/XDatabaseMetaData.hpp>
  38 #include <com/sun/star/sdbc/KeyRule.hpp>
  39 #include <com/sun/star/sdbc/ColumnValue.hpp>
  40 #include <com/sun/star/sdbc/XRow.hpp>
  41 #include <com/sun/star/sdbcx/XColumnsSupplier.hpp>
  42 #include <com/sun/star/sdbcx/XTablesSupplier.hpp>
  43 #include <com/sun/star/sdbcx/KeyType.hpp>
  44
  45 using namespace dbaccess;
  46 using namespace dbtools;
  47 using namespace ::com::sun::star::uno;
  48 using namespace ::com::sun::star::lang;
  49 using namespace ::com::sun::star::beans;
  50 using namespace ::com::sun::star::sdbc;
  51 using namespace ::com::sun::star::sdb;
  52 using namespace ::com::sun::star::sdbcx;
  53 using namespace ::com::sun::star::util;
  54 using namespace ::com::sun::star::container;
  55 using namespace ::osl;
  56 using namespace ::comphelper;
  57 using namespace ::cppu;
  58 using namespace ::connectivity::sdbcx;
  59
  60 //==========================================================================
  61 //= OViewContainer
  62 //==========================================================================
  63 DBG_NAME(OViewContainer)
  64
  65 OViewContainer::OViewContainer(::cppu::OWeakObject& _rParent
  66                                  ,::osl::Mutex& _rMutex
  67                                  ,const Reference< XConnection >& _xCon
  68                                  ,sal_Bool _bCase
  69                                  ,IRefreshListener* _pRefreshListener
  70                                  ,::dbtools::IWarningsContainer* _pWarningsContainer
  71                                  ,oslInterlockedCount& _nInAppend)
  72     :OFilteredContainer(_rParent,_rMutex,_xCon,_bCase,_pRefreshListener,_pWarningsContainer,_nInAppend)
  73     ,m_bInElementRemoved(false)
  74 {
  75     DBG_CTOR(OViewContainer, NULL);
  76 }
  77
  78 OViewContainer::~OViewContainer()
  79 {
  80     DBG_DTOR(OViewContainer, NULL);
  81 }
  82
  83 // XServiceInfo
  84 IMPLEMENT_SERVICE_INFO2(OViewContainer, "com.sun.star.sdb.dbaccess.OViewContainer", SERVICE_SDBCX_CONTAINER.ascii, SERVICE_SDBCX_TABLES.ascii)
  85
  86 ObjectType OViewContainer::createObject(const ::rtl::OUString& _rName)
  87 {
  88     ObjectType xProp;
  89     if ( m_xMasterContainer.is() && m_xMasterContainer->hasByName(_rName) )
  90         xProp.set(m_xMasterContainer->getByName(_rName),UNO_QUERY);
  91
  92     if ( !xProp.is() )
  93     {
  94         ::rtl::OUString sCatalog,sSchema,sTable;
  95         ::dbtools::qualifiedNameComponents(m_xMetaData,
  96                                             _rName,
  97                                             sCatalog,
  98                                             sSchema,
  99                                             sTable,
 100                                             ::dbtools::eInDataManipulation);
 101         return new View(m_xConnection,
 102                         isCaseSensitive(),
 103                         sCatalog,
 104                         sSchema,
 105                         sTable
 106                         );
 107     }
 108
 109     return xProp;
 110 }
 111
 112 Reference< XPropertySet > OViewContainer::createDescriptor()
 113 {
 114     Reference< XPropertySet > xRet;
 115     // first we have to look if the master tables support this
 116     // and if so then create a table object as well with the master tables
 117     Reference<XColumnsSupplier > xMasterColumnsSup;
 118     Reference<XDataDescriptorFactory> xDataFactory(m_xMasterContainer,UNO_QUERY);
 119     if(xDataFactory.is())
 120         xRet = xDataFactory->createDataDescriptor();
 121     else
 122         xRet = new ::connectivity::sdbcx::OView(isCaseSensitive(),m_xMetaData);
 123
 124     return xRet;
 125 }
 126
 127 // XAppend
 128 ObjectType OViewContainer::appendObject( const ::rtl::OUString& _rForName, const Reference< XPropertySet >& descriptor )
 129 {
 130     // append the new table with a create stmt
 131     ::rtl::OUString aName = getString(descriptor->getPropertyValue(PROPERTY_NAME));
 132
 133     Reference<XAppend> xAppend(m_xMasterContainer,UNO_QUERY);
 134     Reference< XPropertySet > xProp = descriptor;
 135     if(xAppend.is())
 136     {
 137         EnsureReset aReset(m_nInAppend);
 138
 139         xAppend->appendByDescriptor(descriptor);
 140         if(m_xMasterContainer->hasByName(aName))
 141             xProp.set(m_xMasterContainer->getByName(aName),UNO_QUERY);
 142     }
 143     else
 144     {
 145         ::rtl::OUString sComposedName = ::dbtools::composeTableName( m_xMetaData, descriptor, ::dbtools::eInTableDefinitions, false, false, true );
 146         if(sComposedName.isEmpty())
 147             ::dbtools::throwFunctionSequenceException(static_cast<XTypeProvider*>(static_cast<OFilteredContainer*>(this)));
 148
 149         ::rtl::OUString sCommand;
 150         descriptor->getPropertyValue(PROPERTY_COMMAND) >>= sCommand;
 151
 152         ::rtl::OUStringBuffer aSQL;
 153         aSQL.appendAscii( "CREATE VIEW " );
 154         aSQL.append     ( sComposedName );
 155         aSQL.appendAscii( " AS " );
 156         aSQL.append     ( sCommand );
 157
 158         Reference<XConnection> xCon = m_xConnection;
 159         OSL_ENSURE(xCon.is(),"Connection is null!");
 160         if ( xCon.is() )
 161         {
 162             ::utl::SharedUNOComponent< XStatement > xStmt( xCon->createStatement() );
 163             if ( xStmt.is() )
 164                 xStmt->execute( aSQL.makeStringAndClear() );
 165         }
 166     }
 167
 168     return createObject( _rForName );
 169 }
 170
 171 // XDrop
 172 void OViewContainer::dropObject(sal_Int32 _nPos,const ::rtl::OUString _sElementName)
 173 {
 174     if ( !m_bInElementRemoved )
 175     {
 176         Reference< XDrop > xDrop(m_xMasterContainer,UNO_QUERY);
 177         if(xDrop.is())
 178             xDrop->dropByName(_sElementName);
 179         else
 180         {
 181             ::rtl::OUString sCatalog,sSchema,sTable,sComposedName;
 182
 183             Reference<XPropertySet> xTable(getObject(_nPos),UNO_QUERY);
 184             if ( xTable.is() )
 185             {
 186                 xTable->getPropertyValue(PROPERTY_CATALOGNAME)  >>= sCatalog;
 187                 xTable->getPropertyValue(PROPERTY_SCHEMANAME)   >>= sSchema;
 188                 xTable->getPropertyValue(PROPERTY_NAME)         >>= sTable;
 189
 190                 sComposedName = ::dbtools::composeTableName( m_xMetaData, sCatalog, sSchema, sTable, sal_True, ::dbtools::eInTableDefinitions );
 191             }
 192
 193             if(sComposedName.isEmpty())
 194                 ::dbtools::throwFunctionSequenceException(static_cast<XTypeProvider*>(static_cast<OFilteredContainer*>(this)));
 195
 196             ::rtl::OUString aSql("DROP VIEW ");
 197             aSql += sComposedName;
 198             Reference<XConnection> xCon = m_xConnection;
 199             OSL_ENSURE(xCon.is(),"Connection is null!");
 200             if ( xCon.is() )
 201             {
 202                 Reference< XStatement > xStmt = xCon->createStatement(  );
 203                 if(xStmt.is())
 204                     xStmt->execute(aSql);
 205                 ::comphelper::disposeComponent(xStmt);
 206             }
 207         }
 208     }
 209 }
 210
 211 void SAL_CALL OViewContainer::elementInserted( const ContainerEvent& Event ) throw (RuntimeException)
 212 {
 213     ::osl::MutexGuard aGuard(m_rMutex);
 214     ::rtl::OUString sName;
 215     if  (   ( Event.Accessor >>= sName )
 216         &&  ( !m_nInAppend )
 217         &&  ( !hasByName( sName ) )
 218         )
 219     {
 220         Reference<XPropertySet> xProp(Event.Element,UNO_QUERY);
 221         ::rtl::OUString sType;
 222         xProp->getPropertyValue(PROPERTY_TYPE) >>= sType;
 223         if ( sType == ::rtl::OUString("VIEW") )
 224             insertElement(sName,createObject(sName));
 225     }
 226 }
 227
 228 void SAL_CALL OViewContainer::elementRemoved( const ContainerEvent& Event ) throw (RuntimeException)
 229 {
 230     ::osl::MutexGuard aGuard(m_rMutex);
 231     ::rtl::OUString sName;
 232     if ( (Event.Accessor >>= sName) && hasByName(sName) )
 233     {
 234         m_bInElementRemoved = true;
 235         try
 236         {
 237             dropByName(sName);
 238         }
 239         catch(Exception&)
 240         {
 241             m_bInElementRemoved = sal_False;
 242             throw;
 243         }
 244         m_bInElementRemoved = false;
 245     }
 246 }
 247
 248 void SAL_CALL OViewContainer::disposing( const ::com::sun::star::lang::EventObject& /*Source*/ ) throw (RuntimeException)
 249 {
 250 }
 251
 252 void SAL_CALL OViewContainer::elementReplaced( const ContainerEvent& /*Event*/ ) throw (RuntimeException)
 253 {
 254 }
 255
 256 ::rtl::OUString OViewContainer::getTableTypeRestriction() const
 257 {
 258     // no restriction at all (other than the ones provided externally)
 259     return ::rtl::OUString( "VIEW"  );
 260 }
 261
 262 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */