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