/*************************************************************************
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * 
 * Copyright 2000, 2010 Oracle and/or its affiliates.
 *
 * OpenOffice.org - a multi-platform office productivity suite
 *
 * This file is part of OpenOffice.org.
 *
 * OpenOffice.org is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License version 3
 * only, as published by the Free Software Foundation.
 *
 * OpenOffice.org is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License version 3 for more details
 * (a copy is included in the LICENSE file that accompanied this code).
 *
 * You should have received a copy of the GNU Lesser General Public License
 * version 3 along with OpenOffice.org.  If not, see
 * <http://www.openoffice.org/license.html>
 * for a copy of the LGPLv3 License.
 *
 ************************************************************************/

// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_dbaccess.hxx"

#include "viewcontainer.hxx"
#include "dbastrings.hrc"
#include "core_resource.hxx"
#include "core_resource.hrc"
#include "View.hxx"

#include <tools/debug.hxx>
#include <tools/wldcrd.hxx>
#include <comphelper/enumhelper.hxx>
#include <comphelper/types.hxx>
#include <connectivity/dbtools.hxx>
#include <comphelper/extract.hxx>
#include <connectivity/dbexception.hxx>
#include <rtl/ustrbuf.hxx>

#include <com/sun/star/beans/XPropertySet.hpp>
#include <com/sun/star/sdbc/XConnection.hpp>
#include <com/sun/star/sdbc/XDatabaseMetaData.hpp>
#include <com/sun/star/sdbc/KeyRule.hpp>
#include <com/sun/star/sdbc/ColumnValue.hpp>
#include <com/sun/star/sdbc/XRow.hpp>
#include <com/sun/star/sdbcx/XColumnsSupplier.hpp>
#include <com/sun/star/sdbcx/XTablesSupplier.hpp>
#include <com/sun/star/sdbcx/KeyType.hpp>

using namespace dbaccess;
using namespace dbtools;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::lang;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::sdbc;
using namespace ::com::sun::star::sdb;
using namespace ::com::sun::star::sdbcx;
using namespace ::com::sun::star::util;
using namespace ::com::sun::star::container;
using namespace ::osl;
using namespace ::comphelper;
using namespace ::cppu;
using namespace ::connectivity::sdbcx;

//==========================================================================
//= OViewContainer
//==========================================================================
DBG_NAME(OViewContainer)
//------------------------------------------------------------------------------
OViewContainer::OViewContainer(::cppu::OWeakObject& _rParent
								 ,::osl::Mutex& _rMutex
								 ,const Reference< XConnection >& _xCon
								 ,sal_Bool _bCase
								 ,IRefreshListener*	_pRefreshListener
								 ,::dbtools::IWarningsContainer* _pWarningsContainer
                                 ,oslInterlockedCount& _nInAppend)
	:OFilteredContainer(_rParent,_rMutex,_xCon,_bCase,_pRefreshListener,_pWarningsContainer,_nInAppend)
    ,m_bInElementRemoved(false)
{
    DBG_CTOR(OViewContainer, NULL);
}

//------------------------------------------------------------------------------
OViewContainer::~OViewContainer()
{
	//	dispose();
	DBG_DTOR(OViewContainer, NULL);
}
//------------------------------------------------------------------------------
// XServiceInfo
//------------------------------------------------------------------------------
IMPLEMENT_SERVICE_INFO2(OViewContainer, "com.sun.star.sdb.dbaccess.OViewContainer", SERVICE_SDBCX_CONTAINER, SERVICE_SDBCX_TABLES)
// -----------------------------------------------------------------------------
ObjectType OViewContainer::createObject(const ::rtl::OUString& _rName)
{
	ObjectType xProp;
	if ( m_xMasterContainer.is() && m_xMasterContainer->hasByName(_rName) )
		xProp.set(m_xMasterContainer->getByName(_rName),UNO_QUERY);

	if ( !xProp.is() )
	{
		::rtl::OUString sCatalog,sSchema,sTable;
		::dbtools::qualifiedNameComponents(m_xMetaData,
											_rName,
											sCatalog, 
											sSchema, 
											sTable,
											::dbtools::eInDataManipulation);
		return new View(m_xConnection,
                        isCaseSensitive(),
                        sCatalog,
						sSchema,
						sTable
						);
	}

	return xProp;
}
// -----------------------------------------------------------------------------
Reference< XPropertySet > OViewContainer::createDescriptor()
{
	Reference< XPropertySet > xRet;
	// frist we have to look if the master tables does support this
	// and if then create a table object as well with the master tables
	Reference<XColumnsSupplier > xMasterColumnsSup;
	Reference<XDataDescriptorFactory> xDataFactory(m_xMasterContainer,UNO_QUERY);
	if(xDataFactory.is())
		xRet = xDataFactory->createDataDescriptor();
	else
		xRet = new ::connectivity::sdbcx::OView(isCaseSensitive(),m_xMetaData);

	return xRet;
}
// -----------------------------------------------------------------------------
// XAppend
ObjectType OViewContainer::appendObject( const ::rtl::OUString& _rForName, const Reference< XPropertySet >& descriptor )
{
	// append the new table with a create stmt
	::rtl::OUString aName = getString(descriptor->getPropertyValue(PROPERTY_NAME));

	Reference<XAppend> xAppend(m_xMasterContainer,UNO_QUERY);
	Reference< XPropertySet > xProp = descriptor;
	if(xAppend.is())
	{
        EnsureReset aReset(m_nInAppend);

        xAppend->appendByDescriptor(descriptor);
		if(m_xMasterContainer->hasByName(aName))
			xProp.set(m_xMasterContainer->getByName(aName),UNO_QUERY);
	}
	else
	{
		::rtl::OUString sComposedName = ::dbtools::composeTableName( m_xMetaData, descriptor, ::dbtools::eInTableDefinitions, false, false, true );
		if(!sComposedName.getLength())
			::dbtools::throwFunctionSequenceException(static_cast<XTypeProvider*>(static_cast<OFilteredContainer*>(this)));

		::rtl::OUString sCommand;
		descriptor->getPropertyValue(PROPERTY_COMMAND) >>= sCommand;

        ::rtl::OUStringBuffer aSQL;
        aSQL.appendAscii( "CREATE VIEW " );
        aSQL.append     ( sComposedName );
        aSQL.appendAscii( " AS " );
        aSQL.append     ( sCommand );

		Reference<XConnection> xCon = m_xConnection;
		OSL_ENSURE(xCon.is(),"Connection is null!");
		if ( xCon.is() )
		{
            ::utl::SharedUNOComponent< XStatement > xStmt( xCon->createStatement() );
			if ( xStmt.is() )
				xStmt->execute( aSQL.makeStringAndClear() );
		}
	}

    return createObject( _rForName );
}
// -------------------------------------------------------------------------
// XDrop
void OViewContainer::dropObject(sal_Int32 _nPos,const ::rtl::OUString _sElementName)
{
    if ( !m_bInElementRemoved )
    {
	    Reference< XDrop > xDrop(m_xMasterContainer,UNO_QUERY);
	    if(xDrop.is())
		    xDrop->dropByName(_sElementName);
	    else
	    {
		    ::rtl::OUString sCatalog,sSchema,sTable,sComposedName;

		    Reference<XPropertySet> xTable(getObject(_nPos),UNO_QUERY);
		    if ( xTable.is() )
		    {
			    xTable->getPropertyValue(PROPERTY_CATALOGNAME)	>>= sCatalog;
			    xTable->getPropertyValue(PROPERTY_SCHEMANAME)	>>= sSchema;
			    xTable->getPropertyValue(PROPERTY_NAME)			>>= sTable;

			    sComposedName = ::dbtools::composeTableName( m_xMetaData, sCatalog, sSchema, sTable, sal_True, ::dbtools::eInTableDefinitions );
		    }

		    if(!sComposedName.getLength())
			    ::dbtools::throwFunctionSequenceException(static_cast<XTypeProvider*>(static_cast<OFilteredContainer*>(this)));

		    ::rtl::OUString aSql = ::rtl::OUString::createFromAscii("DROP VIEW ");
		    aSql += sComposedName;
		    Reference<XConnection> xCon = m_xConnection;
		    OSL_ENSURE(xCon.is(),"Connection is null!");
		    if ( xCon.is() )
		    {
			    Reference< XStatement > xStmt = xCon->createStatement(  );
			    if(xStmt.is())
				    xStmt->execute(aSql);
			    ::comphelper::disposeComponent(xStmt);
		    }
	    }
    }
}
// -----------------------------------------------------------------------------
void SAL_CALL OViewContainer::elementInserted( const ContainerEvent& Event ) throw (RuntimeException)
{
	::osl::MutexGuard aGuard(m_rMutex);
	::rtl::OUString sName;
	if  (   ( Event.Accessor >>= sName )
        &&  ( !m_nInAppend )
        &&  ( !hasByName( sName ) )
        )
	{
		Reference<XPropertySet> xProp(Event.Element,UNO_QUERY);
		::rtl::OUString sType;
		xProp->getPropertyValue(PROPERTY_TYPE) >>= sType;
		if ( sType == ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("VIEW")) )
			insertElement(sName,createObject(sName));
	}
}
// -----------------------------------------------------------------------------
void SAL_CALL OViewContainer::elementRemoved( const ContainerEvent& Event ) throw (RuntimeException)
{
    ::osl::MutexGuard aGuard(m_rMutex);
	::rtl::OUString sName;
	if ( (Event.Accessor >>= sName) && hasByName(sName) )
	{
        m_bInElementRemoved = true;
        try
        {
            dropByName(sName);
        }
	    catch(Exception&)
	    {
		    m_bInElementRemoved = sal_False;
		    throw;
	    }
        m_bInElementRemoved = false;
	}
}
// -----------------------------------------------------------------------------
void SAL_CALL OViewContainer::disposing( const ::com::sun::star::lang::EventObject& /*Source*/ ) throw (RuntimeException)
{
}
// -----------------------------------------------------------------------------
void SAL_CALL OViewContainer::elementReplaced( const ContainerEvent& /*Event*/ ) throw (RuntimeException)
{
}
// -----------------------------------------------------------------------------
::rtl::OUString OViewContainer::getTableTypeRestriction() const
{
    // no restriction at all (other than the ones provided externally)
    return ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( "VIEW" ) );
}