AOO410/main/connectivity/source/drivers/mysql/YTable.cxx

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 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_connectivity.hxx"
#include "mysql/YTable.hxx"
#include "mysql/YTables.hxx"
#include <com/sun/star/sdbc/XRow.hpp>
#include <com/sun/star/sdbc/XResultSet.hpp>
#include <com/sun/star/sdbcx/KeyType.hpp>
#include <com/sun/star/sdbc/KeyRule.hpp>
#include <cppuhelper/typeprovider.hxx>
#include <com/sun/star/lang/DisposedException.hpp>
#include <com/sun/star/sdbc/ColumnValue.hpp>
#include <com/sun/star/sdbcx/Privilege.hpp>
#include <comphelper/property.hxx>
#include <comphelper/extract.hxx>
#include <comphelper/types.hxx>
#include "connectivity/dbtools.hxx"
#include "connectivity/sdbcx/VColumn.hxx"
#include "connectivity/TKeys.hxx"
#include "connectivity/TIndexes.hxx"
#include "connectivity/TColumnsHelper.hxx"
#include "mysql/YCatalog.hxx"
#include "mysql/YColumns.hxx"
#include "TConnection.hxx"


using namespace ::comphelper;
using namespace connectivity::mysql;
using namespace connectivity::sdbcx;
using namespace connectivity;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::beans;
using namespace ::com::sun::star::sdbcx;
using namespace ::com::sun::star::sdbc;
using namespace ::com::sun::star::container;
using namespace ::com::sun::star::lang;
namespace connectivity
{
    namespace mysql
    {
        class OMySQLKeysHelper : public OKeysHelper
        {
        protected:
            // -----------------------------------------------------------------------------
            virtual ::rtl::OUString getDropForeignKey() const
            {
                return ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(" DROP FOREIGN KEY "));
            }
        public:
            OMySQLKeysHelper(	OTableHelper* _pTable,
				::osl::Mutex& _rMutex,
				const TStringVector& _rVector
                ) : OKeysHelper(_pTable,_rMutex,_rVector){}

        };
    }
}

OMySQLTable::OMySQLTable(	sdbcx::OCollection* _pTables,
						   const Reference<	XConnection >& _xConnection)
	:OTableHelper(_pTables,_xConnection,sal_True)
{
	// we create a new table here, so we should have all the rights or ;-)
	m_nPrivileges = Privilege::DROP			|
					Privilege::REFERENCE	|
					Privilege::ALTER		|
					Privilege::CREATE		|
					Privilege::READ			|
					Privilege::DELETE		|
					Privilege::UPDATE		|
					Privilege::INSERT		|
					Privilege::SELECT;
	construct();
}
// -------------------------------------------------------------------------
OMySQLTable::OMySQLTable(	sdbcx::OCollection* _pTables,
						   const Reference< XConnection >& _xConnection,
					const ::rtl::OUString& _Name,
					const ::rtl::OUString& _Type,
					const ::rtl::OUString& _Description ,
					const ::rtl::OUString& _SchemaName,
					const ::rtl::OUString& _CatalogName,
					sal_Int32 _nPrivileges
				) : OTableHelper(	_pTables,
									_xConnection,
									sal_True,
									_Name,
									_Type,
									_Description,
									_SchemaName,
									_CatalogName)
 , m_nPrivileges(_nPrivileges)
{
	construct();
}
// -------------------------------------------------------------------------
void OMySQLTable::construct()
{
	OTableHelper::construct();
	if ( !isNew() )
		registerProperty(OMetaConnection::getPropMap().getNameByIndex(PROPERTY_ID_PRIVILEGES),	PROPERTY_ID_PRIVILEGES,PropertyAttribute::READONLY,&m_nPrivileges,	::getCppuType(&m_nPrivileges));
}
// -----------------------------------------------------------------------------
::cppu::IPropertyArrayHelper* OMySQLTable::createArrayHelper( sal_Int32 /*_nId*/ ) const
{
    return doCreateArrayHelper();
}
// -------------------------------------------------------------------------
::cppu::IPropertyArrayHelper & OMySQLTable::getInfoHelper()
{
    return *static_cast<OMySQLTable_PROP*>(const_cast<OMySQLTable*>(this))->getArrayHelper(isNew() ? 1 : 0);
}
// -----------------------------------------------------------------------------
sdbcx::OCollection* OMySQLTable::createColumns(const TStringVector& _rNames)
{
	OMySQLColumns* pColumns = new OMySQLColumns(*this,sal_True,m_aMutex,_rNames);
	pColumns->setParent(this);
	return pColumns;
}
// -----------------------------------------------------------------------------
sdbcx::OCollection* OMySQLTable::createKeys(const TStringVector& _rNames)
{
	return new OMySQLKeysHelper(this,m_aMutex,_rNames);
}
// -----------------------------------------------------------------------------
sdbcx::OCollection* OMySQLTable::createIndexes(const TStringVector& _rNames)
{
	return new OIndexesHelper(this,m_aMutex,_rNames);
}
//--------------------------------------------------------------------------
Sequence< sal_Int8 > OMySQLTable::getUnoTunnelImplementationId()
{
	static ::cppu::OImplementationId * pId = 0;
	if (! pId)
	{
		::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );
		if (! pId)
		{
			static ::cppu::OImplementationId aId;
			pId = &aId;
		}
	}
	return pId->getImplementationId();
}

// com::sun::star::lang::XUnoTunnel
//------------------------------------------------------------------
sal_Int64 OMySQLTable::getSomething( const Sequence< sal_Int8 > & rId ) throw (RuntimeException)
{
	return (rId.getLength() == 16 && 0 == rtl_compareMemory(getUnoTunnelImplementationId().getConstArray(),  rId.getConstArray(), 16 ) )
				? reinterpret_cast< sal_Int64 >( this )
				: OTable_TYPEDEF::getSomething(rId);
}
// -------------------------------------------------------------------------
// XAlterTable
void SAL_CALL OMySQLTable::alterColumnByName( const ::rtl::OUString& colName, const Reference< XPropertySet >& descriptor ) throw(SQLException, NoSuchElementException, RuntimeException)
{
	::osl::MutexGuard aGuard(m_aMutex);
	checkDisposed(
#ifdef GCC
		::connectivity::sdbcx::OTableDescriptor_BASE::rBHelper.bDisposed
#else
		rBHelper.bDisposed
#endif
		);

	if ( m_pColumns && !m_pColumns->hasByName(colName) )
		throw NoSuchElementException(colName,*this);


	if ( !isNew() )
	{
		// first we have to check what should be altered
		Reference<XPropertySet> xProp;
		m_pColumns->getByName(colName) >>= xProp;
		// first check the types
		sal_Int32 nOldType = 0,nNewType = 0,nOldPrec = 0,nNewPrec = 0,nOldScale = 0,nNewScale = 0;

		::dbtools::OPropertyMap& rProp = OMetaConnection::getPropMap();
		xProp->getPropertyValue(rProp.getNameByIndex(PROPERTY_ID_TYPE))			>>= nOldType;
		descriptor->getPropertyValue(rProp.getNameByIndex(PROPERTY_ID_TYPE))	>>= nNewType;
		// and precsions and scale
		xProp->getPropertyValue(rProp.getNameByIndex(PROPERTY_ID_PRECISION))	>>= nOldPrec;
		descriptor->getPropertyValue(rProp.getNameByIndex(PROPERTY_ID_PRECISION))>>= nNewPrec;
		xProp->getPropertyValue(rProp.getNameByIndex(PROPERTY_ID_SCALE))		>>= nOldScale;
		descriptor->getPropertyValue(rProp.getNameByIndex(PROPERTY_ID_SCALE))	>>= nNewScale;
		// second: check the "is nullable" value
		sal_Int32 nOldNullable = 0,nNewNullable = 0;
		xProp->getPropertyValue(rProp.getNameByIndex(PROPERTY_ID_ISNULLABLE))		>>= nOldNullable;
		descriptor->getPropertyValue(rProp.getNameByIndex(PROPERTY_ID_ISNULLABLE))	>>= nNewNullable;

		// check also the auto_increment
		sal_Bool bOldAutoIncrement = sal_False,bAutoIncrement = sal_False;
		xProp->getPropertyValue(rProp.getNameByIndex(PROPERTY_ID_ISAUTOINCREMENT))		>>= bOldAutoIncrement;
		descriptor->getPropertyValue(rProp.getNameByIndex(PROPERTY_ID_ISAUTOINCREMENT))	>>= bAutoIncrement;
        bool bColumnNameChanged = false;
        ::rtl::OUString sOldDesc,sNewDesc;
        xProp->getPropertyValue(rProp.getNameByIndex(PROPERTY_ID_DESCRIPTION))		>>= sOldDesc;
		descriptor->getPropertyValue(rProp.getNameByIndex(PROPERTY_ID_DESCRIPTION))	>>= sNewDesc;

		if (	nOldType != nNewType
			||	nOldPrec != nNewPrec
			||	nOldScale != nNewScale
			||	nNewNullable != nOldNullable
			||	bOldAutoIncrement != bAutoIncrement 
            || sOldDesc != sNewDesc )
		{
			// special handling because they change dthe type names to distinguish
			// if a column should be an auto_incmrement one
			if ( bOldAutoIncrement != bAutoIncrement )
			{
				::rtl::OUString sTypeName;
				descriptor->getPropertyValue(rProp.getNameByIndex(PROPERTY_ID_TYPENAME)) >>= sTypeName;

				static ::rtl::OUString s_sAutoIncrement(RTL_CONSTASCII_USTRINGPARAM("auto_increment"));
				if ( bAutoIncrement )
				{
					if ( sTypeName.indexOf(s_sAutoIncrement) == -1 )
					{
						sTypeName += ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(" "));
						sTypeName += s_sAutoIncrement;
					}
				}
				else
				{
					sal_Int32 nIndex = 0;
					if ( sTypeName.getLength() && (nIndex = sTypeName.indexOf(s_sAutoIncrement)) != -1 )
					{
						sTypeName = sTypeName.copy(0,nIndex);
						descriptor->setPropertyValue(rProp.getNameByIndex(PROPERTY_ID_TYPENAME),makeAny(sTypeName));
					}
				}
			}
			alterColumnType(nNewType,colName,descriptor);
            bColumnNameChanged = true;
		}

		// third: check the default values
		::rtl::OUString sNewDefault,sOldDefault;
		xProp->getPropertyValue(rProp.getNameByIndex(PROPERTY_ID_DEFAULTVALUE))		>>= sOldDefault;
		descriptor->getPropertyValue(rProp.getNameByIndex(PROPERTY_ID_DEFAULTVALUE)) >>= sNewDefault;

		if(sOldDefault.getLength())
		{
			dropDefaultValue(colName);
			if(sNewDefault.getLength() && sOldDefault != sNewDefault)
				alterDefaultValue(sNewDefault,colName);
		}
		else if(!sOldDefault.getLength() && sNewDefault.getLength())
			alterDefaultValue(sNewDefault,colName);

		// now we should look if the name of the column changed
		::rtl::OUString sNewColumnName;
		descriptor->getPropertyValue(rProp.getNameByIndex(PROPERTY_ID_NAME)) >>= sNewColumnName;
		if ( !sNewColumnName.equalsIgnoreAsciiCase(colName) && !bColumnNameChanged )
		{
			::rtl::OUString sSql = getAlterTableColumnPart();
			sSql += ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(" CHANGE "));
			const ::rtl::OUString sQuote = getMetaData()->getIdentifierQuoteString(  );
			sSql += ::dbtools::quoteName(sQuote,colName);
			sSql += ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(" "));
			sSql += OTables::adjustSQL(::dbtools::createStandardColumnPart(descriptor,getConnection(),static_cast<OTables*>(m_pTables),getTypeCreatePattern()));
			executeStatement(sSql);
		}
		m_pColumns->refresh();
	}
	else
	{
		if(m_pColumns)
		{
			m_pColumns->dropByName(colName);
			m_pColumns->appendByDescriptor(descriptor);
		}
	}

}
// -----------------------------------------------------------------------------
void OMySQLTable::alterColumnType(sal_Int32 nNewType,const ::rtl::OUString& _rColName, const Reference<XPropertySet>& _xDescriptor)
{
	::rtl::OUString sSql = getAlterTableColumnPart();
	sSql += ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(" CHANGE "));
	const ::rtl::OUString sQuote = getMetaData()->getIdentifierQuoteString(  );
	sSql += ::dbtools::quoteName(sQuote,_rColName);
	sSql += ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(" "));

	OColumn* pColumn = new OColumn(sal_True);
	Reference<XPropertySet> xProp = pColumn;
	::comphelper::copyProperties(_xDescriptor,xProp);
	xProp->setPropertyValue(OMetaConnection::getPropMap().getNameByIndex(PROPERTY_ID_TYPE),makeAny(nNewType));

    sSql += OTables::adjustSQL(::dbtools::createStandardColumnPart(xProp,getConnection(),static_cast<OTables*>(m_pTables),getTypeCreatePattern()));
	executeStatement(sSql);
}
// -----------------------------------------------------------------------------
::rtl::OUString OMySQLTable::getTypeCreatePattern() const
{
    static const ::rtl::OUString s_sCreatePattern(RTL_CONSTASCII_USTRINGPARAM("(M,D)"));
    return s_sCreatePattern;
}
// -----------------------------------------------------------------------------
void OMySQLTable::alterDefaultValue(const ::rtl::OUString& _sNewDefault,const ::rtl::OUString& _rColName)
{
	::rtl::OUString sSql = getAlterTableColumnPart();
	sSql += ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(" ALTER "));

	const ::rtl::OUString sQuote = getMetaData()->getIdentifierQuoteString(  );
	sSql += ::dbtools::quoteName(sQuote,_rColName);
	sSql += ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(" SET DEFAULT '")) + _sNewDefault;
	sSql += ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("'"));

	executeStatement(sSql);
}
// -----------------------------------------------------------------------------
void OMySQLTable::dropDefaultValue(const ::rtl::OUString& _rColName)
{
	::rtl::OUString sSql = getAlterTableColumnPart();
	sSql += ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(" ALTER "));

	const ::rtl::OUString sQuote = getMetaData()->getIdentifierQuoteString(  );
	sSql += ::dbtools::quoteName(sQuote,_rColName);
	sSql += ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM(" DROP DEFAULT"));

	executeStatement(sSql);
}
// -----------------------------------------------------------------------------
::rtl::OUString OMySQLTable::getAlterTableColumnPart()
{
	::rtl::OUString sSql = ::rtl::OUString::createFromAscii("ALTER TABLE ");
	const ::rtl::OUString sQuote = getMetaData()->getIdentifierQuoteString(  );

	::rtl::OUString sComposedName(
	    ::dbtools::composeTableName( getMetaData(), m_CatalogName, m_SchemaName, m_Name, sal_True, ::dbtools::eInTableDefinitions ) );
	sSql += sComposedName;

	return sSql;
}
// -----------------------------------------------------------------------------
void OMySQLTable::executeStatement(const ::rtl::OUString& _rStatement )
{
	::rtl::OUString sSQL = _rStatement;
	if(sSQL.lastIndexOf(',') == (sSQL.getLength()-1))
		sSQL = sSQL.replaceAt(sSQL.getLength()-1,1,::rtl::OUString::createFromAscii(")"));

	Reference< XStatement > xStmt = getConnection()->createStatement(  );
	if ( xStmt.is() )
	{
		xStmt->execute(sSQL);
		::comphelper::disposeComponent(xStmt);
	}
}
// -----------------------------------------------------------------------------
::rtl::OUString OMySQLTable::getRenameStart() const
{
    return ::rtl::OUString(RTL_CONSTASCII_USTRINGPARAM("RENAME TABLE "));
}